Exothermic Effect Research Articles

Development of new composite materials based on TiN–Ni cermets during thermochemical pressing

Cermet Tin–Ni (NiTi, Ni3Ti) as the final product of the reaction is one of the research objects. The cermets with 55 vol% Ni are fabricated by optimizing the process parameters of the thermochemical pressing method. In the process of recrystallization, the Ni–Ti solid solution forms NiTi intermetallic. When oxidized in air at a temperature of about 710 °C, the intermetallic with an exothermic effect turns into NiTiO3 oxide - a compound with high resistance to long-term oxidation at temperatures above 1000 °C.

CRYSTALS GROWTH AND REFINEMENT OF THE Cu3SbSe3 CRYSTAL STRUCTURE

The technology of thermoelectric converters, based on the Peltier and Seebeck effects, provides a reversible process of convert in thermal and electrical energy. This opens up prospects for the creation of both thermoelectric coolers and thermoelectric generators. The most widely studied class of thermoelectric materials are complex chalcogenides. In recent years, copper-containing chalcogenides have been actively researched as new highly effective and ecologically friendly thermoelectric materials. The Cu–Sb–Se ternary system are characterized by the existence of three phases CuSbSe2, Cu3SbSe3 and Cu3SbSe4. Among these compounds, the Cu3SbSe3 phase is characterized by the lowest thermal conductivity.
 The synthesis of the Cu3SbSe3 polycrystalline alloy was carried out using high purity elementally components. The synthesis was carried out in vacuumed quartz ampoules by a one-temperature, two-stage process. Taking into account the incongruent melting of Cu3SbSe3, the single crystal growth was carried out by the method of vertical zone crystallization from a solution-melt in vacuumed conical quartz ampoules. As a result, the grown single crystal was dark gray color with metallic luster, without defects with length ~ 40 mm and diameter 12 mm.
 Obtained single crystalline sample of Cu3SbSe3 was investigated by DTA method. The heating curve contains one endothermic effect at 530°С, which corresponds to the process of peritectic decomposition of Cu3SbSe3. The effect corresponding to the melting of all components in the quartz container is not fixed. However, it is clearly visible on the cooling curve at 712 °С. The exothermic effect of crystallization of Cu3SbSe3 (503 °С) is clear and sharp and is observed with supercooling ΔТ = 27 °С. To confirm the single crystallinity of grown Cu3SbSe3 sample, an XRD analysis of the natural surface was carried out. The diffraction pattern shows two clear and narrow diffraction peaks corresponding to the (200) and (400) planes at angles of 22.27° and 45.42°, respectively. The crystal structure of the obtained Cu3SbSe3 single crystal was investigated by XRD analysis using the Rietveld full-profile refinement method. Established that Cu3SbSe3 crystallize in orthorhombic crystal system, SGPnma with lattice parameters: a = 7.9668 Å, b = 10.65870 Å, c = 6.8207 Å, Z = 4.

Applicability of alfalfa and goldenrod residues after supercritical CO2 extraction to plant micronutrient biosorption and renewable energy production

The residues of alfalfa and goldenrod, after supercritical CO2 extraction, were examined against raw plant materials to determine the capacity to carry micronutrients and energy production.Materials were enriched with Cu(II), Mn(II) and Zn(II), via biosorption and subjected to multielemental analysis and determination of nitrogen. The materials showed a high capacity for Cu(II)>Zn(II) > Mn(II), whose content increased by 104–1262 and 54–2460 times in post- and prior-extraction samples, respectively. The goldenrod residues provided the best results for Mn(II) (14,000 mg/kg) and Zn(II) (18,500 mg/kg), while alfalfa residues bound more Cu(II) (13,800 mg/kg). Materials meet the EU regulation requirements for organo-mineral fertilisers.During thermal breakdown, two combustion steps lead to 83–85% weight loss. The thermal response included two exothermic effects at 120–400 °C and 400–620 °C releasing the energy of 3.4–4.5 μV/mg and 6.1–7.0 μV/mg, respectively. Alfalfa matrices provided stronger thermal effects. The materials emit H2O, CO2 and SO2. Extraction caused an increase and a slight decrease of the energy released by alfalfa during the first and second combustion steps, respectively.The residues contained less water than the raw materials and could be applied as solid biofuel or as combustion promoters. Laboratory-scale experiments proved that the residues after extraction were suitable in both applications.

Adsorption Performance of Acid Dyes on Color-Adsorbing Nonwoven and Its Application in the Washing of Silk Textiles

ABSTRACT In recent years, the use of color-adsorbing nonwoven as a dye transfer inhibitor to prevent the cross-staining of fabrics in home laundering has received great attention. In this work, a color-adsorbing nonwoven was used to adsorb the dyes desorbed from dyed silk textiles and thereby provide an anti-staining effect in the washing. The nonwoven consisted of cationic regenerated cellulose and polyolefin fibers and had an isoelectric point of 7.82. The adsorption properties of acid dyes on the nonwoven and the anti-staining of the nonwoven were studied. The adsorption kinetics and isotherms of acid dyes on the nonwoven followed the pseudo-second-order kinetic and Langmuir adsorption models, respectively. With increasing temperature, the adsorption saturation increased, and the Langmuir affinity constant decreased, indicating an exothermic effect. The adsorption of dyes with high molecular weight showed great temperature dependence. During the washing of dyed silk textiles, the strong adsorption capability of cationic cellulose for desorbed acid dyes contributed to the anti-staining effect of color-adsorbing nonwoven.

Circular solid state reduction process of fine copper powder synthesis with life cycle assessment for photovoltaics application

This paper presents the process of synthesis of copper powders obtained by the pyrometallurgical method without the participation of the liquid phase. This method is based on the simultaneous decomposition and reduction of copper (II) carbonate. Hydrogen was used as a reducing agent. Due to the strongly exothermic thermal effect of the reduction reaction, a mixture of inert gas and hydrogen was used to better control the parameters. Studies have shown that the carbonate method enables the synthesis of copper powders with a narrow distribution and controlled size. The size is controlled by the grinding time of the copper (II) carbonate. An life cycle assessment and circularity study evaluate the sustainability of the new process, and focus is given to the energy efficiency.

Temperature Driven Transformation of the Flexible Metal-Organic Framework DUT-8(Ni).

DUT-8(Ni) metal-organic framework (MOF) belongs to the family of flexible pillared layer materials. The desolvated framework can be obtained in the open pore form (op) or in the closed pore form (cp), depending on the crystal size regime. In the present work, we report on the behaviour of desolvated DUT-8(Ni) at elevated temperatures. For both, op and cp variants, heating causes a structural transition, leading to a new, crystalline compound, containing two interpenetrated networks. The state of the framework before transition (op vs. cp) influences the transition temperature: the small particles of the op phase transform at significantly lower temperature in comparison to the macroparticles of the cp phase, transforming close to the decomposition temperature. The new compound, confined closed pore phase (ccp), was characterized by powder X-ray diffraction and spectroscopic techniques, such as IR, EXAFS, and positron annihilation lifetime spectroscopy (PALS). Thermal effects of structural transitions were studied using differential scanning calorimetry (DSC), showing an overall exothermic effect of the process, involving bond breaking and reformation. Theoretical calculations reveal the energetics, driving the observed temperature induced phase transition.

Effect of Alumina Content on Structure and Properties of High Refractive Index Glass

In this paper, BaO-ZnO-TiO2-SiO2 is used as the research system of high refractive index glass, and IR, XRD and DTA are used to study the structure, thermal behavior, crystallization and chemical stability of different glasses when Al2O3 gradually replaces CaO. The results show that when Al2O3 replaces CaO, the glass still has an amorphous structure. With the increase of Al2O3 content, the glass structure first becomes tight, and then due to the formation of [AlO6], the glass network becomes loose, and the glass density peaks with the increase of Al2O3 content. DTA analysis showed that with the increase of Al2O3 content, the devitrification trend of the glass increased during the cooling process, the crystallization peak moved to the low temperature direction, and the exothermic effect weakened, indicating that the surface crystallization trend of the glass increased and the overall crystallization became weaker. The results show that the density, refractive index and water resistance of glass microspheres containing only CaO are the best, but the crystallization of glass is obvious during heat treatment.

Improving the safety of oil and gas facilities by improving flame retardants

Introduction. One of the ways to reduce the fire hazard at industrial facilities is the application of intumescent coatings. It is known that intumescent compositions are multicomponent composite materials, whose effectiveness is due to complex chemical transformations of the components of the studied flame retardant exposed to high temperatures. In this regard, the problem of studying the physicochemical processes and thermophysical characteristics of flame retardant thermal expansion materials is in demand and relevant.The purpose of this article is to analyze the thermophysical properties of water- and acrylic compound-based intumescent flame retardants to improve the safety of oil and gas facilities.To accomplish this purpose, the following objectives were attained:studying acrylic dispersion-based intumescent flame retardant materials using methods of thermal analysis;analyzing aqueous dispersion-based intumescent flame retardant materials using methods of thermal analysis;making a comparative analysis of the thermo-oxidative degradation of the studied flame retardant materials.Methods. During the study, thermogravimetric analysis, differential thermogravimetric analysis, differential scanning calorimetry, and quadrupole mass spectrometry were chosen as the main methods.Results. As a result of the studies performed using methods of synchronous thermal analysis of water- and acrylic compound-based intumescent flame retardants, the similarity of ongoing physicochemical processes was identified, including the presence of four main stages of mass loss and a high exothermic effect. This high thermal effect has proven high flammability of the studied flame retardant materials.Conclusions. Following the analysis, the authors have concluded that intumescent flame retardants, containing acrylic vinyl acetate emulsion and aqueous dispersion, begin to lose their performance characteristics, necessary for a flame retardant material, when the temperature reaches approximately ~600 °C.

Comparative thermal analysis of coal fuels, biomass, fly ash and polyamide

The paper presents a tally of the results of thermal analysis TG/DTG/DSC of selected fuels (hard coal, agro biomass and forest biomass), waste (coal sludge, fly ash), quartz sand with the organic material, and recyclate of polyamide PA6. The materials differ in composition and calorific values. The aim of the study was a complex comparative analysis of the tested materials inthe scope of potential use of coal fuels, biomass and coal waste to create polymer composites, as well as thermal co-utilization of polymer waste, and energy recovery from plastic waste. The thermal analysis permits to illustrate the change of a sample mass and to obtain information at what temperature ranges these changes occur. It also enables to notice whether any changes related to heat absorption or release take place in the tested substance, as well as identify exothermic and endothermic effects during thermal process.The authors stated that the changes of values on the DSC, TG and DTG curves of the tested materials during the thermal process result mainly from their primary composition. The analyzed quartz sand with organic substance, and fly ash, show the lowest exothermic effects in the air atmosphere, in contrast to other tested materials, due to low carbon content and volatiles matter. Among the considered fuels: hard coal, coal sludge, biomass, coal has the highest carbon content and calorific value, which is reflected in the maximum DSC values.

Influence of flax fibers on epoxide-amine composites: Energetics of interphase formation

Flax fibers are particularly relevant in composite fabrication due to natural availability and mechanical properties close to glass fibers. We explore flax fiber-containing epoxy-amine (DGEBA/DETA) polymers with wide industrial applicability. Flax fibers impact the glass transition temperature (DSC), with a Tg drop of 67 °C at 30 wt% loading. For deeper insight, we develop here an original mixing calorimetry approach to follow in situ DGEBA/fibers and DETA/fibers interphases. DGEBA does not interact quantitatively with flax fibers while DETA/fibers interaction is significantly exothermic and directly related to fibers content. DETA/water interaction only accounts for 25% of total heat effect. Experiments run by contacting DETA with each of the main components of flax fibers (cellulose, hemicelluloses, lignin) point out systematic exothermic effects. Considering their mean proportion in flax fibers, the sum of enthalpy contributions agrees well with the overall effect measured with entire fibers. The main contribution (58%) arises from cellulose. XRD analyses and literature considerations allow concluding on the direct implication of DETA molecules with cellulose chains, resulting in Tg decrease. This work clarifies the chemical role of flax fibers in DGEBA/DETA thermosets, down to the molecular-scale, and highlights that mixing calorimetry is a powerful tool to follow interphase formation in situ.

Effects of air entraining agent on the rheological properties and electrochemical parameters of cement mortar

The durability of concrete is indirectly affected by its rheological properties at the early stage of hydration. Air entraining agent (AEA), which is widely used to improve the fluidity of cement mortar (CM), may alter the rheological properties of CM during the early hydration process. This study aims to investigate how AEA influences the physiochemical mechanism of the fluidity of CM. The rheological properties and consistency of CM containing AEA with different curing times were measured. Resistance and electrochemical impedance spectroscopy (EIS) of CM were monitored using digital bridges and electrochemical workstations. The microstructure of hardened CM was observed by scanning electron microscope (SEM). The results revealed that AEA increased the consistency of CM, and the rheological parameters of CM changed more complicated. The resistance of CM increased with the increasing AEA dosage. The EIS curve displayed a unique electrochemical response that gradually moved to the upper right. The correlation analyses revealed that when the AEA dosage was between 0 and 0.08%, the resistance was negatively correlated with the consistency and favorably correlated with the rheological parameters, while when the AEA dosage exceeded 0.08%, the findings were entirely opposite. The varied correlations can be explained by the counterbalance between AEA’s heightened exothermic effect and the dual effects and existing forms of bubbles. The SEM findings showed that the bubbles introduced by AEA were presented in two forms: individual distribution and bubble bridge.

Effect of high-energy ball milling on the microstructure, phase composition and microhardness of the Al–Mn–Cu alloy

X-ray diffraction and scanning electron microscopy methods were used to study the effect of the planetary ball mill treatment time on the morphology, phase composition and microstructure of the Al–Mn–Cu-based alloy granules with and without nanodiamond particles. The phase composition of the alloy was determined by X-ray diffraction after casting and milling for 5–20 h. It was shown that nanodiamond particles promote granule coarsening, and this is especially noticeable with an increase in the milling time up to 20 h. At the same time, the size of initial alloy granules weakly depends on the processing time. Cu-bearing phases of crystallization origin dissolve during mechanical alloying. The lattice constant of the aluminum solid solution decreases after 5-hour treatment to 0.4028–0.4030 nm, and increases with further increasing milling time. Exothermic effects associated with the precipitation of secondary phases were revealed for mechanically alloyed granules during heating. An increase in the milling time reduces the intensity of peaks. The solidus temperature of samples decreased after mechanical alloying. For the nanodiamond-bearing sample, an exothermic effect is observed which can be ascribed to the aluminum carbide formation or oxidation reactions in nanodiamond particles. The maximum microhardness is achieved after 5–10 h of mechanical alloying, and the nanodiamond particles slightly increase the maximum microhardness from 316 to 330 HV. The results indicate the dissolution of copper and manganese in the aluminum solid solution after 5 h of treatment and their precipitation with the increasing milling time. Nanodiamond particles have no effect on the dissolution of elements but accelerate the solid solution decomposition with the increasing treatment time.

In-situ synthesis, microstructure, and properties of NbB2-NbC-Al2O3 composite coatings by plasma spraying

The high melting point and strong chemical bonding of NbB2 pose a great challenge to the preparation of high-density nanostructured NbB2 composite coating. Herein, we report a novel, simple, and efficient method to fabricate in-situ NbB2-NbC-Al2O3 composite coating by plasma spraying Nb2O5-B4C-Al composite powder, aiming at realizing the higher densification and ultra-fine microstructure of NbB2 composite coating. The microstructure and properties of in-situ NbB2-NbC-Al2O3 composite coating were studied comparatively with ex-situ NbB2-NbC-Al2O3 composite coating (plasma spraying NbB2-NbC-Al2O3 composite powder). The reaction mechanism of Nb2O5-B4C-Al composite powder in plasma jet was analyzed in detail. The results showed that the in-situ nanostructured NbB2-NbC-Al2O3 composite coating presented a lower porosity and superior performance including higher microhardness, toughness and wear resistance compared to the plasma sprayed ex-situ NbB2-NbC-Al2O3 coating and other boride composite coatings. Densification of the in-situ NbB2-NbC-Al2O3 coating was attributed to the low melting point of Nb2O5-B4C-Al composite powder and the exothermic effect of in-situ reaction. The superior performance was ascribed to the density improvement and the strengthening and toughening effect of the nanosized phases. The in-situ reaction path could be expressed as: Nb2O5 + Al → Nb + Al2O3, and Nb + B4C → NbB2 + NbC.

Photo- and magneto-responsive highly graphitized carbon based phase change composites for energy conversion and storage

Phase change material (PCM) as latent heat storage unit shows great potential in various scenes, including solar energy storage system and magnetically induced energy conversion and storage. But insufficient optical activity and electromagnetic response capability seriously hinder its wider applications. Herein, we reported an advanced high-performance photo- and magneto-driven composite phase change material (CPCM), where metal-organic framework (MOF) derived magnetic highly graphitized carbon (MGC) served as a fast-charging photo- and magneto-responsive supporting skeleton, and octadecanol (ODA) acted as a latent heat storage unit. In graphitic structure, there were numerous sp2 carbon atoms and π electrons. Under solar irradiation, heat is quickly discharged by lattice vibration resulting from π-π∗ transition and subsequent electron-phonon coupling in highly graphitized carbon. Moreover, in situ anchored magnetic cobalt nanoparticles contribute to another exothermic effect triggered by light and alternative magnetic field owing to its surface plasmon resonance (SPR) and eddy current effect, respectively. Additionally, cobalt nanoparticles can also serve as the heterogenous nucleation sites to promote the crystallinity of ODA molecules, thus profiting the increase of phase change enthalpy. Therefore, our developed cobalt-decorated highly graphitized carbon based photo- and magneto-responsive CPCM synergistically reached an enhanced photothermal efficiency of 88.1%, thermal energy storage capacity of 131.14 J/g, and excellent thermal cycling stability and reliability after undergoing multiple charging-discharging cycles, showing great potential in latent heat storage, solar and magnetic energy harvesting.

RETRACTED: Assessment of the benefits of 3D printing of advanced thermosetting composites using process simulation and numerical optimisation

3D printing of continuous fibre reinforced thermosetting matrix composites is set to revolutionise composite manufacturing practice. The potential of curing additively is anticipated to bring significant improvement in terms of increasing process speed, producing geometries that are inaccessible with current processing routes and eliminating detrimental exothermic effects during the process. This study presents a comparison between the curing stage of the 3D printing and standard batch processing for carbon fibre/epoxy components of varying thickness and size. An optimisation methodology links simulation of the cure using Finite Element solver Abaqus with a Genetic Algorithm capable of dealing with multi-objective problems. Optimal cure cycles to minimise both process time and temperature overshoot in 3D printing and batch processing are identified and the optimal trade-offs compared. The results highlight that temperature overshoot reduction up to 85% is possible and that the intrinsic additive nature of the 3D printing allows eliminating the dependence of temperature overshoot on thickness and producing component with thicknesses that are very difficult to manufacture conventionally. A simplified procedure for the estimation of 3D printing process duration is proposed based on the results of finite element simulation. This is used for exploration of the limits of the process with respect to part size and a generic comparison of process applicability against batch processing. The analysis shows that 3D printing is highly advantageous for small components, is efficient for mid-size components and can – on the basis of its scalability – offer a feasible route for producing large and very large components. • 3D printing achieves temperature overshoot reduction up to 85% compared to standard process. • 3D printing eliminates the dependence of temperature overshoot on thickness. • The cure stage of 3D printing is well represented by a simplified cure model. • 3D printing process time is less than conventional processes for small and mid-size components.

Improving the Properties of Plasma Heat-Resistant Coatings by Means of Spraying Materials That React with Exothermic Effects

Improving the Properties of Plasma Heat-Resistant Coatings by Means of Spraying Materials That React with Exothermic Effects

Exothermic characteristics of coal during low-temperature oxidation based on grey correlation method

This study investigated the exothermic characteristics of coal during its low-temperature oxidation and determined the main factors affecting the exothermic intensity of the oxidation process. Four coal samples with different degrees of coalification were prepared to study the variation in the exothermic heat of oxidation at temperatures ranging from 25 to 70 °C through constant-temperature coal oxidation experiments. A grey correlation analysis was conducted including the volatile matter, moisture, sulphur content, ash, oxygen concentration, temperature, and exothermic intensity associated with the oxidation of coal. The results showed that the oxygen consumption rate, CO release rate, and CO2 release rate of the coal increased exponentially with the increase in the temperature; under the same oxygen concentration and temperature, the above factors were found to be directly proportional to the volatile content of the coal and negatively correlated with the degree of coalification. At constant temperature, the oxidation heat release intensity of the coal was directly proportional to the oxygen concentration; under a constant oxygen concentration, the oxidation heat release intensity of the coal increased exponentially with the increase in the temperature. The relationship between the oxidation heat release intensity of coal, volatile matter, moisture, sulphur content, ash, oxygen concentration, temperature, and oxygen concentration in the temperature range of 25–70 °C was deduced using the grey correlation analysis method. The grey correlations between the volatile matter, moisture, sulphur content, ash, oxygen concentration, and temperature were 0.8349, 0.6206, 0.6555, 0.7645, 0.7477, and 0.5649, respectively. The differences in the intensity of the oxidative exothermic effect of coals with different degrees of coalification were mainly influenced by the volatile content, and the intensity of the oxidative exothermic effect of the same coal was mainly influenced by the oxygen concentration.

Curing of epoxy resins by bio-based phenalkamines vs low-molecular-weight amines: study by DSC

In this study, curing of BPA-based epoxy resins Araldite®GY-2600 and Araldite®GY-240 by low-molecular-weight amines EDA, TETA and Jeffamine D-230, and bio-based phenalkamines Cardolite®NX-6019, Cardolite®Lite-2002 and Cardolite®GX-6004 was studied by differential scanning calorimetry (DSC) and rheology measurements. DSC provided quantitative information on the overall reaction kinetics (the enthalpy of curing reaction, ΔHR; cure degree, α; curing reaction rate, dα/dt) and the glass transition temperature (Tg) of the cured product. It was demonstrated that the DSC curing of epoxy resins by phenalkamines started at lower temperature, and the curing rates were slightly lower compared to those cured by low-molecular-weight amine hardeners. The enthalpy of the curing by phenalkamines was lower, especially in the case of more viscous epoxy resin GY-2600. Tg of the cured epoxy resins varied from 50 to 98°C and was slightly lower when cured with cardanol-based phenalkamines. The results demonstrate that curing of epoxy resins by bio-based phenalkamines proceeds in a similar temperature interval like using low-molecular-weight amines as hardeners but with less exothermic effect, which could be an advantage.

Application of agent-based approach for heat conduction processes simulation

Heat transfer processes are the basis of the most technological processes of the energy sector. Thus, the development of modern approaches for computer simulation and visualization of the phenomena of thermal energy transfer in various objects are of great importance and is relevant. Classical models in the form of differential equations of various types describe processes in continuous space and time. So, it is difficult to apply classical models to study nonlinear phenomena, and processes in inhomogeneous media in the presence of discontinuous solutions at the boundaries. In these cases, simplifying assumptions are used, thus, the adequacy of the models is reduced. It is of great interest to apply fundamentally different approaches to describe transfer processes, which include discrete dynamic models. The purpose of this project is to study the possibilities to apply discrete approaches to simulate nonlinear heat transfer processes under conditions of material inhomogeneity and the presence of volume sources of variable power. The paper studies the possibilities to apply the agent-based approach to simulate models of complex systems. This approach allows us to consider a continuum as a set of interacting elements (agents). The behavior of the elements is completely described by local dependencies. At the same time, the laws of functioning of individual elements are accepted as deterministic and they correspond to the fundamental principles of the theory of heat transfer. The possibility to apply a discrete approach for simulating the process of heat transfer by the molecular mechanism has been studied. The general methodology to develop an agent-based deterministic model is described. Its applicability to describe quasi-linear and nonlinear heat conduction processes is considered. The examples of simulation of combustion processes complicated by exothermic and endothermic effects are considered. The advantages and disadvantages of the proposed method are indicated. The results of the study have shown that discrete agent models are a good alternative to classical continuum approaches to study heat transfer processes in inhomogeneous media. The results obtained do not contradict modern approaches to the description of thermal processes. It has also been found that the simulation algorithms used in the agent-based approach are quite universal and easily adapt to changes under the conditions of problem setting. The analysis of the results makes it possible to recommend a discrete agent-based approach to develop simulation models of complex technological processes and systems.

Advanced Ru/Ni/WC@NPC Multi‐Interfacial Electrocatalyst for Efficient Sustainable Hydrogen and Chlor‐Alkali Co‐Production

AbstractRational design and construction of a new high‐efficiency hydrogen evolution electrocatalyst operating stably under high temperature, strong alkaline, and high salt conditions are the key challenges for realizing economically sustainable hydrogen generation and low energy consumption chlor‐alkali co‐production. Herein, according to requirements of hydrogen evolution reaction (HER) electrocatalysts under chlor‐alkali electrolysis conditions, a three‐component Ru/Ni/WC electrocatalyst with a weak exothermic effect for the water adsorption step (∆HH2O = −0.12 eV), low water dissociation energy barrier (ΔGb = 0.61 eV), and close‐to‐zero Gibbs free adsorption energy (∆GH* = −0.03 eV) is designed through density functional theory calculations. Under the guidance of theoretical calculations, a novel multi‐interface composite electrocatalyst is successfully prepared, denoted as Ru/Ni/WC@NPC (Ru wt.% = 4.13%). In a strongly alkaline medium, Ru/Ni/WC@NPC (Ru wt.% = 4.13%) records an excellent HER electrocatalytic activity with a very low overpotential (η10 = −3 mV) at 20 °C and even demonstrates exciting HER behavior at 90 °C (η10 = +2.8 mV). Most importantly, the electrochemical test under simulated chlor‐alkali electrolysis condition demonstrates better HER performance than the industrial cathode material of commercial 20% Pt/C and low carbon steel. Generally, this study reveals a new strategy and reference for constructing effective and robust HER electrocatalysts that match with the chlor‐alkali industry.