Temperature Oxidation Research Articles

Novel technique to produce porous thermochromic VO2 nanoparticle films using gas aggregation source

Vanadium dioxide (VO2) is a phase transition material that undergoes semiconductor-to-metal transition at the temperature of about 68 °C. This extraordinary feature triggered intensive research focused on the controlled synthesis of VO2. In this study, we introduce and investigate an original linker- and solvent-free strategy enabling the production of highly porous VO2 nanoparticle-based films. This technique combines a gas-phase synthesis of vanadium nanoparticles and their subsequent atmospheric pressure thermal oxidation. It is shown that the thermochromic behaviour of such produced nanomaterial is at the fixed oxidation temperature strongly dependent on the oxidation time. Concerning this, it was found that there exists an optimal oxidation time (60 s in our study) that assures the production of crystalline VO2 nanoparticles with the highest, reproducible and temporally stable semiconductor-to-metal transition with the resistive switching ratio close to 2 orders of magnitude and dramatic switching of optical properties in the near infra-red spectral region.

Effects of pre-oxidation temperature and air volume on oxidation thermogravimetric and functional group change of lignite.

To investigate the impact of the oxidation temperature and variations in airflow conditions on coal spontaneous combustion characteristics, pre-oxidized coal samples were prepared using a programmed temperature rise method. Synchronous thermal analysis experiments and Fourier transform infrared spectroscopy were conducted to explore changes in the thermal effects and functional group content of the coal samples, respectively. The results indicate that variations in pre-oxidation conditions primarily in fluence the activation temperature and maximum weight loss temperature of the coal samples, while exerting a lesser impact on the critical temperature and ignition point. Variations in air volume conditions predominantly affect the content of Ar-C-O- and -CH2 & -CH3 in the oxygen-containing functional group region. The trend of the average activation energy within a conversion rate range of 0.2 to 0.6 of pre-oxidized coal samples changing with the increased of pre-oxidation temperature under the air flow conditions of 25mL/min and 50mL/min is consistent, but opposite to that under the air flow conditions of 100mL/min and 200mL/min. Compared to raw coal, under an airflow rate of 50 mL/min and when oxidized to 110°C, the coal sample exhibits an increase in the content of OH…OH, accompanied by reductions in the critical temperature, activation temperature, ignition point, and maximum weight loss temperature to varying degrees, thereby rendering it more susceptible to oxidative spontaneous combustion.

Optimization and Characterization of a Nanostructured Lipid Carrier Containing α-Tocopherol/Tocotrienol Prepared using Rice Bran Oil and Palm Kernel Stearin

Background: α-tocopherol and tocotrienol are known for their antioxidant properties and cannot be produced directly in the human body. However, their use remains limited because of their low solubility, instability, and susceptibility to oxidation and high temperatures. Objective: This study aims to identify the optimal formulation of a carrier of phytonutrient α- tocopherol/tocotrienol prepared via ultrasonication with rice bran oil (RBO), palm kernel stearin (PKS), and Tween 80 and determine the characteristics of the optimal formulation during storage. Methods: The box-behnken design (three factors and levels) was used to determine the formulation of a nanostructured lipid carrier -tocopherol/tocotrienol (NLC-TT) based on the solid: liquid lipid ratio, total lipid: surfactant ratio, and sonication time. Results: The optimal NLC-TT formulation prepared with a solid: liquid lipid ratio of 7.5:2.5, total lipid: surfactant ratio of 1:3.9, and sonication time of 12 min and 6 s yielded a particle size of 126.7 nm, a polydispersity index of 0.339, a zeta potential of -31.7 and an encapsulation efficiency (EE) of 96.4%. During storage, NLC-TT and NLC-free particles exhibited particle sizes of 123.6-144.2 nm, polydispersity indices of 0.245-0.339, zeta potentials of -31.7--39.6 mV, EEs of 96.4%-89.6%, stabilities of 2.02-1.63, peroxide values of 0.05-0.25 mEqO2/kg, anisidine values of 0.07-1.60 and free fatty acid contents of 0.04%-0.08%. Conclusion: RBO and PKS are potential lipid-based carrier systems for tocopherol/ tocotrienol and exhibit good stability during storage.

External pressure induced the dysfunction of Sertoli cells via the Fas/FasL signaling pathway

Cryptorchidism, a condition where the testis fails to fully descend into the scrotum during development, is associated with elevated environmental temperatures and pressures, leading to male infertility and germ cell tumors. Factors such as oxidative stress and high temperatures contribute to infertility in cryptorchidism. This study aims to explore how external pressure affects Sertoli cells and discover new mechanisms affecting spermatogenesis in cryptorchidism. Sertoli cells were subjected to various pressure levels (0 mmHg, 25 mmHg, 50 mmHg, 100 mmHg) and durations (0 h, 2 h, 4 h) using an enzyme-linked immunosorbent assay (ELISA) to measure androgen binding protein (ABP) and inhibin B (INH B) secretion. Cell morphology changes were observed using immunofluorescence; apoptosis rates were measured with terminal-deoxynucleotidyl transferase mediated nick end labelling (TUNEL) assay and flow cytometry; ultrastructural variations were examined via transmission electron microscopy; and the expression of apoptosis-related proteins (Fas, FasL, caspase 3, and caspase 8) was analyzed through immunohistochemistry, real-time polymerase chain reaction (real-time PCR), and western blotting. The results showed that elevated pressure suppressed ABP and INH B secretion from Sertoli cells. Structural changes were observed under pressure, including cytoskeleton loosening and nuclear fragmentation. Apoptosis rates increased with higher pressure levels. Ultrastructural analysis revealed chromatin changes, apoptotic bodies, and mitochondrial alterations. Increased expressions of Fas and FasL were detected, along with elevated levels of caspase 3 and caspase 8. The caspase 8 inhibitor blocked pressure-induced apoptosis and caspase 3 activation, while the cytochrome C inhibitor did not show the same effect. Our findings suggested that external pressure induces apoptosis of Sertoli cells via the Fas/FasL signaling pathway, potentially contributing to male infertility associated with cryptorchidism.

Determining the optimal oxidation temperature of non-isothermal liquid fuels injections using modeling based on statistical droplet distribution

Single-hole injections of liquid hydrocarbon fuels (isooctane and dodecane) under high turbulence have been investigated using direct numerical simulation based on the statistical model considering the droplets’ atomization, distribution, and combustion. The study objects are the heat and mass transfer processes during atomization and combustion of liquid fuels injections within the combustion chambers of thermal engines. The temperature and carbon dioxide concentration distributions of the fuel-air mixture, the distributions of the droplets, their velocities, and the Sauter mean radius within the isooctane and dodecane oxidation in the engine’s combustion space were obtained. An investigation of the oxidizer’s initial temperature influence on the droplets’ atomization and combustion processes showed that the optimal temperature for both fuels is 900 K. The obtained modeling results were confirmed in good agreement with theoretical and experimental data. Thanks to the integrated use of approaches from statistical theory, numerical algorithms and 3D computer modeling techniques, the results obtained are distinguished by high accuracy, efficiency in reducing computational resources, scientific novelty in the type of droplet atomization and suitability for practical application for technological solutions not only for single-hole, but also for multi-hole injections of liquid fuels and studying the jet-to-jet interaction phenomena. The obtained research results can be applied in miscellaneous internal combustion engines development with different atomization types, which will allow us to contemporaneously settle the concerns of streamlining the combustion process, improving the completeness of fuel combustion and reducing emissions of harmful substances

Oxidation temperature influence on the properties of oxide layers thermally grown on 4H-SiC by wet oxidation

Abstract Compositional characteristics of oxide layers thermally grown on top of 4H-SiC were investigated as a function oxidation temperature. For that, we followed the evolution of the oxide properties after different oxidation times. Different oxidation regimes were identified: an initial oxidation regime where a substoichiometric oxide is formed, followed by the conversion of this layer to SiO2. Oxidation temperature was revealed a key parameter to obtain stoichiometric SiO2, since in the lower temperature used in this work (900 oC), only substoichiometric layers were obtained. The results obtained also evidence a similar behavior between wet and dry SiC oxidation, suggesting a multi-step process in both cases.

Utilization of Cocoa Pod Husk Waste as Fuel for Downdraft Type Gasification Reactor of 960 Liters Capacity in Berau Regency

This experiment aims to investigate the performance characteristics of a downdraft gasification reactor fueled by cocoa pod husk as a technological solution for obtaining alternative renewable energy sources to replace fossil fuels and natural gas. The research was conducted experimentally on a gasification reactor made of SS310 thermal resistant carbon steel material. The reactor has dimensions of 35 centimeter in diameter and 250 centimeter in height. Measurement of gasification zone using 7 units of K-type thermocouples that was installed along the reactor wall. Fuel was feeding continuously at a rate of 4kg/hour. The research was conducted by varying the temperature in oxidation zone, specifically at 900 ºC, 950 ºC, 1000 ºC, 1050 ºC, and 1100 ºC. Data collection was carried out in different temperature variations and processed to determine the performance parameters of the gasification reactor, including gas composition, temperature distribution on the reactor wall, and the lower heating value (LHV) of the syngas production. The results showed the highest temperature distribution of the reactor in the drying zone 205ºC, pyrolysis zone 575ºC and reduction zone 520 ºC that be obtained at the oxidation temperature of 1100 ºC . Meanwhile the optimum value of syngas quality was obtained at the oxidation temperature of 1000 ºC with the composition of flamable syngas CO, H2, and CH4 are 27.08%, 8.53% and 2.41% , with the highest LHV 5206 kJ/m3. In general the increasing of the oxidation temperature lead to a positive contribution to the performance of the gasification reactor using cocoa pod husk waste.

Signatures of ambient pressure superconductivity in thin film La3Ni2O7.

Recently, the bilayer nickelate La3Ni2O7 has been discovered as a new superconductor with transition temperature Tc near 80 K under high pressure1-3. Despite extensive theoretical and experimental work to understand the nature of its superconductivity4-29, the requirement of extreme pressure restricts the use of many experimental probes and limits its application potential. Here, we present signatures of superconductivity in La3Ni2O7 thin films at ambient pressure, facilitated by the application of epitaxial compressive strain. The onset Tc varies approximately from 26 K to 42 K, with higher Tc values correlating with smaller in-plane lattice constants. We observed the co-existence of other Ruddlesden-Popper phases within the films and dependence of transport behavior with ozone annealing, suggesting that the observed low zero resistance Tc of around 2 K can be attributed to stacking defects, grain boundaries, and oxygen stoichiometry. This finding initiates numerous opportunities to stabilize and study superconductivity in bilayer nickelates at ambient pressure, and to facilitate the broad understanding of the ever-growing number of high temperature and unconventional superconductors in the transition metal oxides.

A New Optical Analysis System for Online Measurement of NO Temperature and Concentration in Combustion Processes.

In the combustion process, the nitric oxide (NO) concentration and temperature are considered to be highly related to the combustion efficiency. Currently, ultraviolet differential absorption optical spectroscopy (UV-DOAS) has become an ideal method for NO analysis due to its strong absorption characteristics in the UV spectral regime. However, since temperature and concentration have similar effects and complex correspondences on intensity, it is a challenge to achieve dual-indicator sensing of NO at this time. In this paper, we first report a system based on UV-DOAS that allows simultaneous detection of NO temperature and concentration. Specifically, NO temperature was acquired by spectral blueshift, and then, concentration could be calculated based on Gaussian spectral reconstruction combined with the dual parametric surface. First, the mechanism of the temperature-induced blueshift for the NO spectrum was explained based on the energy level distribution theory. On this basis, the relationship between blueshift and temperature has been established based on multipeak spectral autocorrelation algorithm. Second, we introduced a Gaussian spectral reconstruction method based on the mapping domain transformation to improve the data quality. Then, the dual parametric surface about NO temperature and concentration was constructed using the reconstructed optical parameter. After the temperature has been acquired using the blueshift, the NO concentration can also be calculated. The test results indicated that the mean relative error for NO temperature and concentration detection was 1.86 and 2.55% in the ranges 295.15-773.15 K and 0-50 ppm, respectively. Meanwhile, this system exhibited excellent long-term stability with a detection limit of 22.5 ppb∗m.

Growth and Characterization of NiO Thin Films for Selective Detection of Formaldehyde Vapor

The formation of nickel oxide (NiO) nanostructures using controlled thermal oxidation of thin nickel (Ni) films and their successive use as gas‐sensing materials for selective detection of low‐concentration formaldehyde vapor are discussed here. High‐purity Ni were deposited on glass/quartz substrates using a vacuum assisted electron beam (E‐beam) evaporation technique. Afterwards, thermal oxidation of these Ni thin films was conducted at various temperatures in air ambient condition. Different surface characterization techniques are employed to investigate the structure, chemistry, and electronic properties of these as‐grown oxide nanostructures. X‐ray diffraction analysis revealed that the thermal oxidation starts above 400 °C. Presence of metallic nickel peak even after oxidation at 500 °C for 5 h confirms its oxidation resistance. Increase in oxidation temperature improves the crystalline quality. Scanning electron microscopy imaging depicts an increase in particle size with oxidation temperature and a highly porous surface morphology above 800 °C. Raman spectroscopy identified the characteristic modes of NiO. UV‐Visible data exhibits a redshift in optical bandgap whereas X‐ray photoemission spectroscopy analysis reveals a gradual increase in oxygen content within the oxide layer. Finally, these NiO films show a high sensitivity and selectivity toward formaldehyde vapor sensing against a few other volatile organic compounds.

Formation of All Tin Oxide p–n Junctions (SnO–SnO2) during Thermal Oxidation of Thin Sn Films

Metastable stannous oxide (SnO) phase of p‐type semiconductor and all tin oxides p–n junctions of SnO–SnO2 nanostructures are formed by controlled thermal oxidation of thin tin films. High purity Sn is deposited on quartz substrates using a vacuum‐assisted thermal evaporation technique. Afterwards, controlled thermal oxidation at different temperatures is performed in air ambient condition (150–800 °C). Various surface characterization techniques have been employed to analyze the structure, morphology, chemistry, optical, and electronic properties of these SnOx films. P‐type SnO phase is found to be thermodynamically stable at lower oxidation temperatures (250–400 °C), while n‐type SnO2 phase starts to appear above 500 °C. Highly uniform and dense SnO nanospheres along with few 1D nanorods are observed after oxidation at 400 °C. Mixed oxide phases of p–n junctions with a sudden decrease in electrical conductivity is observed for 500 °C film. Significantly lower surface conductivity of mixed oxide phase indicates the formation of depletion layers between p‐type SnO and n‐type SnO2 nanograins. A transition from SnO layer to SnO2 layer is also observed above 600 °C. Overall, SnOx‐based nanostructures would be a potential candidate for solar cells, p‐channel thin film transistors, p–n junction diodes and gas sensors.

Mechanical Performance and Tribological Behavior of WC-ZrO2 Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering

This paper presents research on the effects of the addition of various contents of graphene oxide and sintering temperature on the mechanical, tribological, and electrical characteristics of WC-ZrO2 composites. Wet processing and spark plasma sintering provided dense samples with simultaneous reduction of graphene oxide (rGO) during sintering. The obtained results showed that the best mechanical properties were observed at a sintering temperature of 1700 °C in samples with 0.5 vol.% rGO content; namely, indentation fracture toughness (5.8 ± 0.4 MPa·m1/2) and flexural strength (872 ± 43 MPa) increased by 9% and 24.3% compared with the sample without rGO. In addition to improved mechanical performance, rGO-reinforced composites exhibited lower wear rates and friction coefficients than non-rGO composites, due to the formation of a graphitic lubricating tribolayer on worn surfaces and counterbodies in a friction pair, which provided sufficient lubrication to reduce the coefficient of friction and wear rate. The resulting composites also showed low electrical resistivity, suggesting the possibility of using electrical discharge machining to manufacture ceramic products of complex shapes from them.

Active Interfacial Perimeter in Pt/CeO2 Catalysts with Embedding Structure for Water-Tolerant Toluene Combustion.

Supported Pt catalysts are often subjected to severe deactivation under the conditions of high temperature and water vapor in catalytic oxidation; thus, the superior stability and water-resistant ability of catalysts have great significance for the effective degradation of volatile organic compounds (VOCs). Herein, we constructed a Pt/CeO2-N catalyst with an active interfacial perimeter, in which Pt species were partially embedded in the defective CeO2-N support to prevent the sintering. A significant charge transfer between Pt species and ceria in the embedding structure occurred via the Pt-CeO2 interface, which induced the formation of a Pt4+-Ov-Ce3+ interfacial structure. Experimental research and theoretical calculations demonstrated that the active Pt4+-Ov-Ce3+ interface promoted the activation and migration of lattice oxygen, thus facilitating the participation of oxygen species in toluene oxidation. Consequently, Pt/CeO2-N showed excellent catalytic performance for toluene degradation. In situ DRIFTS and DFT calculation proved that the Pt4+-Ov-Ce3+ interfacial sites served as the intrinsic active center in the dissociation of H2O to generate ·OH, which contributed to the formation of benzaldehyde, thus remarkably improving the water-resistant property. This study provided a facile strategy for fabricating the interfacial embedding structure to enhance the catalytic activity and water tolerance for eliminating VOCs in practical application.

Surface Oxygen Engineering Catalytic Pore Tailoring of Coal-Based Needle Coke toward Capacitive Porous Carbon.

Coal-based needle coke (CNC) is an ideal carbon precursor for capacitive materials due to its layered graphitic structure and high electrical conductivity. However, the pore-rich engineering and graphitic structural inheriting of CNC-derived carbon during the conventional activation process present challenges. Herein, a surface oxygen engineering catalytic pore tailoring strategy is developed to manipulate the porous structures of CNC-derived porous carbon. This synthesis uses air oxidation to form oxygen-rich microregions on the CNC surface, which can effectively tear the graphite protective shell, accelerate the bonding of KOH with oxygen groups, and catalyze the etching reaction between potassium compounds and carbon atoms. Thanks to the low activation temperature of 600 °C and alkali-to-carbon ratio of 1:1, the obtained porous carbon (PC) inherits the long-range graphitic structure from CNC, and its specific surface areas can be adjusted from 182.6 to 855.4 m2 g-1 by adjusting the oxidation temperature, which is far more than that of PC (7.6 m2 g-1) derived from CNC direct activation. The optimized PC shows a high specific capacitance of 308.3 F g-1 at 0.5 A g-1 and a capacitive retention of 212.2 F g-1 at 20 A g-1 with a capacitive retention of 68.8%. The assembled supercapacitor delivers an energy density of 8.12 Wh kg-1 at a power density of 50.0 W kg-1 and ultralong cycle stability with capacitance retention of 99% and Coulombic efficiency of 100% after 50,000 cycles. This study validates the feasibility of pore tailoring by surface oxygen engineering catalysis in soft carbon for enhancing capacitance.

Oxidation Behavior of Aluminide Coatings on Cobalt-Based Superalloys by a Vapor Phase Aluminizing Process.

In this work, the oxidation behavior of an aluminide coating at 900, 1000, and 1100 °C was investigated. The aluminide coating was prepared on a cobalt-based superalloy using a vapor phase aluminizing process, which is composed of a β-(Co,Ni)Al phase outer layer and a Cr-rich phase diffusion layer. The experimental results showed that the oxidation of the coating at 900-1100 °C all obey the parabolic law. The oxidation rate constants of the coating were between 2.19 × 10-7 and 47.56 × 10-7 mg2·cm-4·s-1. The coating produced metastable θ-Al2O3 at 900 °C and stable α-Al2O3 at 1000 and 1100 °C. As the oxidation temperature increases, the formation of Al2O3 is promoted, consuming large amount of Al in the coating, resulting in the transformation from β-(Co,Ni)Al phase to α-(Co,Ni,Cr) phase. And the decrease in the β phase in the coating led to the dissolution of the diffusion layer.

Effect of SnO2 Nanoparticles Content on Ignition and Combustion Performance of Boron Particles

Abstract Boron is a potential metallic fuel substitute for solid propellant, however, its application has been limited by the surface oxide layer. Metal oxide are proposed to improve its oxidation performance. In the paper, boron particles were coated with SnO2 nanoparticles (n-SnO2) by a hydrothermal method. The B@SnO2 particles were characterized by SEM, TEM, and XRD. The results show that the boron particles were uniformly coated with n-SnO2 with range from 5 nm to 20 nm. The thermal oxidation, ignition and combustion performances were characterized by using TG-DSC, oxygen bomb calorimeter and laser ignition testing system. The relationship between the content of SnO2 and the performance of ignition and combustion were established. Significant reduction of oxidation temperature of boron particles was observed after coating with n-SnO2. The effect was more obvious with increasing SnO2 content. Furthermore, with the increase of SnO2 content, the ignition delay time of B@SnO2 particles decrease, its heat of combustion and combustion efficiency first increase then decreases gradually. Compared with boron particles, the maximum combustion efficiency of B@SnO2 particles reaches to 86.03%, increased by 57.19%, and the minimum ignition delay time reaches to 8 ms, decreased by 46.7%. Therefore, the coating significantly reduced ignition temperature and increased heat, and the particles has profound application potential as the solid fuel.

Influence of the Cooling Rate on the Wüstite Content in Oxide Layers Formed During High-Temperature Oxidation of Hot-Worked Tool Steel with High Thermal Conductivity

The transformation of wüstite (FeO) in the oxide layer formed during high temperature oxidation (600 °C and 700 °C) on hot-worked tool steel was investigated. Wüstite plays an important role in the oxide layer of these steels used for hot working. However, understanding its transformation behavior during cooling is crucial for controlling the final oxide layer structure. Slow cooling rates have a significant influence on the final wüstite content, resulting in inaccurate representations of the composition of the oxide layer at temperatures above 570 °C. The aim of this study was to determine the influence of cooling rate on the wüstite content in the oxide layer after high temperature oxidation. It was found that for hot-worked steel samples oxidized at 700 °C or higher, a cooling rate of more than 1000 °C min−1 is required to suppress the eutectoid transformation and maintain the realistic wüstite content. At lower temperatures (570 °C–600 °C), a cooling rate of more than 100 °C min−1 is required to achieve the wüstite content observed at oxidation temperatures in the oxide layer. Overall, the hematite and magnetite contents also vart with the cooling rate, which is associated with changes in the wüstite content.

The effect of heating rate on secondary oxidation of coal spontaneous combustion under hypoxic conditions

ABSTRACT Coal spontaneous combustion (CSC) presents significant safety risks in coal mining. This study investigates the causes through experiments on lignite from southwestern China. The coal samples underwent varying heating rates (HRs) in a programmed temperature furnace under 5% O2 to produce experimental samples. Custom-engineered heating apparatuses, gas chromatography (GC), and Fourier-transform infrared spectroscopy (FTIR) were enlisted to analyze the effects of HR on coal oxygen consumption, CO emissions, and functional group conversions under hypoxic circumstances.The principal discoveries indicate that HR significantly influences secondary oxidation and the transformation of functional groups, thereby affecting the CSC process. The optimal HR for secondary oxidation depends on the initial oxidation temperature. At an initial oxidation temperature of 80°C, coal samples subjected to a heating rate of 0.4 °C/min demonstrated an elevated rate of oxygen consumption, along with markedly higher levels of aromatic hydrocarbons and oxygen-containing functional groups in comparison to other samples. At HRs of 0.8 °C/min and 1.2 °C/min, the oxygen consumption rate increased with the initial oxidation temperature, ultimately exceeding the aliphatic hydrocarbon group content in samples treated at other temperatures. The hydroxyl content decreased with rising temperature but was maintained at lower HRs at lower temperatures.

Low infrared emissivity and corrosion resistance of TiO2 films prepared by thermal oxidation of sputtered Ti films

To develop low infrared emissivity and corrosion resistant films, a dense rutile TiO2 film was synthesized by thermal oxidizing sputtered Ti metal film under hypoxic environment at 300, 400, 500 and 600℃. Results show that with rising oxidation temperature, surface defects and oxygen vacancies decrease. At 300℃ and 400℃, less oxygen leads to pores. As temperature increases, surface grains become smaller and denser, and films change from hydrophilic to hydrophobic. At 500°C, the TiO2 film with emulsion - like morphology and protrusions has a contact angle of 148.75° (near superhydrophobic), enhancing corrosion resistance. At 600°C, the increase in carrier density reduces resistivity, and the densely packed structure minimizes infrared absorption, achieving a low infrared emissivity of 0.125 in 8–14 μm wavelength range.

Effects of the mixing ratios of n-decane/methylcyclohexane binary fuel on the thermal cracking and carbon deposition propensity

The development of high-performance fuels for high-speed vehicles requires attention to the effects of interactions between different components of the fuels as coolant on cracking and carbon deposition. Pyrolysis and coking of n-decane and methylcyclohexane (MCH), which represent the n-alkane and cycloalkane classes, respectively, were conducted with electrical heating under supercritical conditions. The gas and liquid products were analyzed by GC–MS, while the coking properties were obtained by characterization methods including programmed temperature oxidation (TPO), scanning electron microscopy (SEM), and Raman spectroscopy. The results demonstrate that at the mixing ratio of 8:2, the gas yield is highest reaching about 41.8 % at 700 °C, while a smaller amount of coking precursors are produced, exhibiting excellent anti-coking performance. Meanwhile, the coke is gradually transformed from filamentous carbon to spherical carbon with a lower graphitization degree and higher oxidation activity. The addition of MCH mainly promotes the generation of ethylene to improve the degree of cracking of the fuel while reducing the generation of propylene and 1,3-butadiene, thereby reducing coke deposition. The regulation of fuel composition can achieve the effect of increasing the cracking depth and inhibiting coking simultaneously. The results can provide theoretical guidance for the adjustment of advanced fuel composition.