Open Framework Research Articles

Open energy system modelling for low-emission hydrogen roadmap planning: The case of Colombia

Climate change is driving the need for new approaches to energy production and utilization globally, contributing to the mitigation of greenhouse gas (GHG) emissions. Low-emission hydrogen is recognized as a key energy vector for decarbonization, and numerous countries are currently evaluating strategies and roadmaps for its integration. Colombia, with its abundant renewable resources, is poised as a potential player in hydrogen production. This study presents a techno-economic assessment of hydrogen pathways and their cross-sectoral interactions within the Colombian energy system. By employing an open energy system optimization framework (OSeMOSYS), we modelled a detailed supply-demand hydrogen chain and analysed a series of scenarios from 2021 to 2050, including a sensitivity analysis. Our results show that hydrogen pathways will require 2–6.4 Mt/year in hydrogen production, 8–27 GW in new installed capacity, and US$50–80 billion in investments, with favourable impacts in GHG mitigation, energy imports, and socioeconomic benefits. We use these findings to suggest an update to the targets of the current National Hydrogen Roadmap focused on a higher ambition to deploy a full hydrogen economy. Our open methodology provides a valuable tool for conducting further assessments in developing countries interested in defining low-emission hydrogen roadmaps.

Disaster management with cloud-based geographic information systems: site selection of landfill areas after Kahramanmaraş, Türkiye earthquake sequence

On February 6, 2023, the earthquakes centered on Kahramanmaraş-Pazarcık and Kahramanmaraş-Elbistan affected several provinces in the region and generated a vast amount of demolition waste. This study aims to develop a site selection model for the most suitable landfill areas after the earthquake using open-source Geographic Information Systems (GIS) software and the Best-Worst Method (BWM). First, the study identifies decision criteria with a Delphi expert panel. Next, it determines the weights using the BWM based on pairwise comparison. Spatial data of the determinants were obtained from open data portals, and proximity, overlay, and slope analyses were carried out for the disaster region. Combining the output data layer of each criterion, a suitability map of the landfills was produced. As a result, 36,2% (29,826 kms square) of the study area was classified as suitable and very suitable. In this study, a cloud GIS-based decision support platform was developed to act quickly and initiate recovery processes within the scope of disaster management of the destructive earthquake. The suitability map and potential sites were shared with the responsible teams in the disaster area so that the potential sites could be displayed on the map and the suitable areas could be navigated on appropriate routes. The findings of the study revealed that the use of open data and cloud GIS framework in the disaster management process enables quick, reliable, and cost-effective actions in the immediate aftermath of disasters.

Historical Territorialization of Mining Companies in The State of Bahia

Purpose: This article proposes to develop a territorial, historical, dynamic, open and plural analytical framework, referring to mining companies operating in the State of Bahia. Theoretical Framework: Through socioeconomic, ecological and historical analyses, we clarify multiple relationships between past and contemporary facts, based on the theoretical and conceptual perspectives of the cartographic exercise of New Social Cartography, developed by professor Alfredo Wagner. Method: The methodological instrument is New Social Cartography, through which we seek to highlight companies, agents of mineral exploration, highlighting phenomena inherent to their activities. Using methods that involve the leading roles of communities in the construction of knowledge. Results and conclusions: We observed that in Bahia, as, generally speaking, in Brazil, sophisticated models of mining colonization were established, with embryonic approvals from the Kandir Law, one of the legal provisions that must be urgently questioned and repudiated, in the name of freedom and lives. Research implications: Exposure and elucidation of global policies involving mining processes, presenting a worrying dynamism, with major ruptures and structural transformations (economic, political, cultural and mental). Originality/value: we contrast political categories and reified legal norms, demystifying them, presenting immeasurable losses inherited by human populations, their sociocultural frameworks, living organisms and the abiotic environments of ecosystems.

Performance Benchmarking of Redpanda an event streaming platform using SBK and Open Messaging Frameworks

Redpanda is an event-driven, publish/subscribe based messaging system. The two main performance benchmarking frameworks, Storage Benchmark Kit (SBK) and open messaging benchmark are used here to test the performance benchmarking of redpanda’s event processing system. SBK is a software framework for measuring any storage device or client's performance benchmarking and open messaging benchmark framework which supports benchmarking for a wide variety of messaging platforms. Well formulated fine tuning system for benchmarks is still an open research problem. In this paper, SBK and open messaging frameworks have been experimentally compared with respect to their messaging capabilities (Message sending and receiving throughput) on redpanda’s event processing system. A number of experimental test scenarios have been conducted on data streaming workload, the performance evaluation results revealed that SBK gives maximum throughput performance compared to open messaging benchmark.

Facile fabrication of nanocellulose-supported membrane composited with modified carbon nitride and HKUST-1 for efficient photocatalytic degradation of formaldehyde

As a cellulose-derived material, nanocellulose possesses unique properties that make it an ideal substrate for various functional composite materials. In this study, we developed a novel composite membrane material capable of adsorbing and photo-catalyzing formaldehyde by immobilizing HKUST-1 (copper open framework composed of 1,3,5-benzenetricarboxylic acid) onto NFC (Nano-fibrillated cellulose) membranes and subsequently loading modified carbon nitride. The synthesized CNx@HN composite membrane (consisting of NFC membrane with anchored HKUST-1 and modified g-C3Nx nanosheets) was thoroughly characterized, and its photocatalytic degradation performance towards low concentrations of formaldehyde (3.0 mg/m3) was investigated. The results demonstrated that HKUST-1's porous nature exhibited a concentrated adsorption capacity for formaldehyde, while the modified CNx (Modified g-C3Nx nanosheets) displayed robust photocatalytic degradation of formaldehyde. The synergistic effect of HKUST-1 and modified CNx on the NFC membrane significantly enhanced the efficiency of formaldehyde degradation. Under xenon lamp irradiation, CNx@HN-5 achieved a total removal efficiency of 86.9 % for formaldehyde, with a photocatalytic degradation efficiency of 48.45 %, showcasing its exceptional ability in both adsorption and photocatalytic degradation of formaldehyde. Furthermore, after 10 cycles of recycling, the composite membrane exhibited excellent stability for the photocatalytic degradation process. Therefore, this study presents a green and facile strategy to fabricate nanocellulose-supported composite membranes with great potential for practical applications in formaldehyde degradation.

Prussian blue analogue-based superstructure nanoarrays for sodium ion hybrid supercapacitors

Supercapacitors (SCs) have attracted significant attention due to their remarkable traits of high-power density and prolonged cyclability. Despite the extensive exploration of Prussian blue analogues (PBAs) with three-dimensional (3D) open frameworks as SC electrodes, their instability and low conductivity have impeded their advancement in practical SC applications. In this study, we present a straightforward immersion-based technique to produce a superstructure nanoarray of CoNiFe-based PBA (CoNiFePBA). The unique superstructure comprises ultrathin nanosheets assembled into a half-open hollow configuration, fostering abundant active surface sites, a stable framework, and efficient channels for ion/electron transfer, consequently enabling effective charge storage. Furthermore, the integration of ternary metals not only offers numerous redox reaction centers but also heightens synergistic effects, resulting in enhanced capacity and cycling stability. As a result, the CoNiFePBA electrode delivers outstanding specific capacity (96.85 mAh g−1 at 0.5 A g−1) and enduring cycling stability (92.25 % after 10,000 cycles). Notably, the hybrid SC built on the CoNiFePBA demonstrates an exceptionally broad voltage window (2.1 V) and a high energy density. This work underscores the immense potential of CoNiFePBA superstructure nanoarrays for driving high-performance SC technology forward.

An Old Material for a New World: Prussian Blue and Its Analogues as Catalysts for Modern Needs

Prussian blue analogues (PBAs) have recently emerged as effective materials in different functional applications, ranging from energy storage to electrochemical water splitting, thence to more “traditional” heterogeneous catalysis. Their versatility is due to their open framework, compositional variety, and fast and efficient internal charge exchange, coupled with a self-healing ability that makes them unique. This review paper presents and discusses the findings of the last decade in the field of the catalytic and photocatalytic application of PBAs in water remediation (via the degradation of organic pollutants and heavy metal removal) and the catalytic oxidation of organics and production or organic intermediates for industrial synthesis. Analysis of the catalytic processes is approached from a critical perspective, highlighting both the achievements of the research community and the limits still affecting this field.

Two‐electron redox chemistry enables potassium‐free copper hexacyanoferrate as high‐capacity cathode for aqueous Mg‐ion battery

AbstractPrussian blue analogs (PBAs) are potential contestants for aqueous Mg‐ion batteries (AMIBs) on account of their high discharge voltage and three‐dimensional open frameworks. However, the low capacity arising from single reaction site severely restricts PBAs' practical applications in high‐energy‐density AMIBs. Here, an organic acid co‐coordination combined with etching method is reported to fabricate defect‐rich potassium‐free copper hexacyanoferrate with structural water on carbon nanotube fiber (D‐CuHCF@CNTF). Benefiting from the high‐valence‐state reactive sites, arrayed structure and defect effect, the well‐designed D‐CuHCF@CNTF exhibits an extraordinary reversible capacity of 146.6 mAh g−1 with two‐electron reaction, nearly close to its theoretical capacity. It is interesting to unlock the reaction mechanism of the Fe2+/Fe3+ and Cu+/Cu2+ redox couples via x‐ray photoelectron spectroscopy. Furthermore, density functional theory calculations reveal that Fe and Cu in potassium‐free D‐CuHCF participate in charge transfer during the Mg2+ insertion/extraction process. As a proof‐of‐concept demonstration, a rocking‐chair fiber‐shaped AMIBs was constructed via coupling with the NaTi2(PO4)3/CNTF anode, achieving high energy density and impressive mechanical flexibility. This work provides new possibilities to develop potassium‐free PBAs with dual‐active sites as high‐capacity cathodes for wearable AMIBs.image

Vacancy and Growth Modulation of Cobalt Hexacyanoferrate by Porous MXene for Zinc Ion Batteries

AbstractPrussian blue analogs (PBAs) featuring with 3D open framework are recognized as promising cathode candidates for Zinc‐ion batteries (ZIBs). However, challenges such as unsatisfactory active site utilization, low conductivity, and abundant structural vacancies have impeded fulfillment of their potential. In this work, a conductive in‐plane porous MXene is for the first time adopted as a multifunctional host material to enhance cobalt hexacyanoferrate (CoHCF) growth and crystallinity. Particularly, the uniform surface charges on MXene are identified to induce anisotropic and highly crystalline CoHCF, which are critical to alleviating the practical drawbacks associated with the PBAs family. Empowered by the targeted modification, the CoHCF nanotube/MXene composite realizes high surface area and low defectiveness, resulting in an impressive capacity of 197 mAh g−1 at 0.1 A g−1 and capacity retention of 95.3% over 3000 cycles at 2.0 A g−1. X‐ray spectroscopy and density functional theory (DFT) reveal that Co─C bonds in the heterostructure facilitate rapid electron/Zn‐ion transfer, enhancing Zn storage kinetics. To validate practical applicability, pouch cells incorporating Zn|CoHCF/MXene are further examined. This composition strategy, utilizing MXene as a multifunctional template, enhances the surface area, conductivity, and crystallinity of PBAs as cathodes for ZIBs, showcasing the significant potential for large‐scale energy storage applications.

Phase Engineering of Zirconium MOFs Enables Efficient Osmotic Energy Conversion: Structural Evolution Unveiled by Direct Imaging.

Creating structural defects in a controlled manner within metal-organic frameworks (MOFs) poses a significant challenge for synthesis, and concurrently, identifying the types and distributions of these defects is also a formidable task for characterization. In this study, we demonstrate that by employing 2-sulfonylterephthalic acid as the ligand for synthesizing Zr (or Hf)-based MOFs, a crystal phase transformation from the common fcu topology to the rare jmt topology can be easily facilitated using a straightforward mixed-solvent strategy. The jmt phase, characterized by an extensively open framework, can be considered a derivative of the fcu phase, generated through the introduction of missing-cluster defects. We have explicitly identified both MOF phases, their intermediate states, and the novel core-shell structures they form using ultralow-dose high-resolution transmission electron microscopy. In addition to facilitating phase engineering, the incorporation of sulfonic groups in MOFs imparts ionic selectivity, making them applicable for osmotic energy harvesting through mixed matrix membrane fabrication. The membrane containing the jmt-phase MOF exhibits an exceptionally high peak power density of 10.08 W m-2 under a 50-fold salinity gradient (NaCl: 0.5 M|0.01 M), which surpasses the threshold of 5 W m-2 for commercial applications and can be attributed to the combination of large pore size, extensive porosity, and abundant sulfonic groups in this novel MOF material.

Prussian Blue Nanoplates for Potassium Ion Battery Cathode with High Capacity and High Energy Density

AbstractPrussian blue analogues (PBAs) represent as a class of materials with an open framework structure and have been intensively explored as the potential active materials for alkaline‐ion batteries. Here, we present the synthesis of Prussian blue nanoplates designed for use as high performance cathode materials in potassium‐ion batteries. Prussian blue nanoplates were synthesized through a facile solution precipitation route using a highly concentrated potassium citrate solution. The potassium‐rich environment during the synthesis facilitated horizontal growth of the crystals, yielding potassium‐rich Prussian blue nanoplates. The resultant Prussian blue nanoplates exhibited a significantly larger particle size of 600 nm and a reduced specific surface area of 6.8 m2 g−1, compared to conventionally synthesized Prussian blue hexahedrons. Half‐cell tests demonstrated that the Prussian blue nanoplates exhibited a high gravimetric capacity of 152.5 mAh g−1 with a nominal voltage 3.952 V at a C‐rate of 0.1 C, yielding an energy density of 602.7 Wh kg−1. Cycling tests demonstrated high cycling stability of the material, maintaining a capacity of 122.7 mAh g−1 and a nominal voltage of 3.923 V after 200 cycles at 0.2 C. In a full‐cell configuration with graphite anodes, a gravimetric capacity changed from 134.1 mAh g−1 to 108.9 mAh g−1 after 100 cycles at 0.2 C, demonstrating a good cycling stability. This work provides a new insight into the electrochemical properties of Prussian blue nanoplates and highlights their potential as high‐performance cathode materials for potassium‐ion batteries.

Microporosity and Catalytic Activity for Hydrodesulfurization of Pharmacosiderite Mo4P3O16 Synthesized at a Moderate Temperature.

Pharmacosiderite Mo4P3O16 (Pharma-MoPO) consists of [Mo4O4] cubane unit and [PO4] tetrahedral to form an open framework with a microporous structure similar to that of LTA-type zeolite. Although attractive applications are expected due to its microporous structure and redox-active components, its physicochemical properties have been poorly investigated due to the specificity of its synthesis, which requires a high hydrothermal synthesis temperature of 360 °C. In this study, we succeeded in synthesizing Pharma-MoPO by hydrothermal synthesis at 230 °C, which can be applied using a commercially available autoclave by changing the metal source. Through the study of the solids and liquids obtained after hydrothermal syntheses, the formation process of Pharma-MoPO under our studied synthesis conditions was proposed. Advanced characterizations provided detailed structural information on Pharma-MoPO, including the location site of a countercation NH4+. Pharma-MoPO could adsorb CO2 with the amount close to the number of cages without removing NH4+. Pharma-MoPO exhibited stable catalytic activity for the hydrodesulfurization of thiophene while maintaining its crystal structure, except for the introduction of sulfide by replacing lattice oxygens. Pharmacosiderite Mo4P3O16 was successfully obtained by hydrothermal synthesis at a moderate temperature, and its microporosity for CO2 adsorption and catalytic properties for hydrodesulfurization were discovered.

Upcycling of polyethylene to gasoline through a self-supplied hydrogen strategy in a layered self-pillared zeolite

Conversion of plastic wastes to valuable carbon resources without using noble metal catalysts or external hydrogen remains a challenging task. Here we report a layered self-pillared zeolite that enables the conversion of polyethylene to gasoline with a remarkable selectivity of 99% and yields of >80% in 4 h at 240 °C. The liquid product is primarily composed of branched alkanes (selectivity of 72%), affording a high research octane number of 88.0 that is comparable to commercial gasoline (86.6). In situ inelastic neutron scattering, small-angle neutron scattering, solid-state nuclear magnetic resonance, X-ray absorption spectroscopy and isotope-labelling experiments reveal that the activation of polyethylene is promoted by the open framework tri-coordinated Al sites of the zeolite, followed by β-scission and isomerization on Brönsted acids sites, accompanied by hydride transfer over open framework tri-coordinated Al sites through a self-supplied hydrogen pathway to yield selectivity to branched alkanes. This study shows the potential of layered zeolite materials in enabling the upcycling of plastic wastes.

Elucidating Electrochemical Energy Storage Performance of Unary, Binary, and Ternary Transition Metal Phosphates and their Composites with Carbonaceous Materials for Supercapacitor Applications

Transition metal compounds (TMCs) are being researched as promising electrode materials for electrochemical energy storage devices (supercapacitors). Among TMCs, transition metal phosphates (TMPs) have good, layered structures owing to open framework and protonic exchange capability among different layers, good surface area due to engrossed porosity, rich active redox reaction sites owing to octahedral structure and variable valance metallic ions. Hence TMPs become more ideal for supercapacitor electrode materials compared to other TMCs. However, TMPs have got some issues like low conductivity, rate performance, stability, energy, and power densities. But these problems can be addressed by making their composites with carbonaceous materials, e.g., carbon nanotubes (CNTs), graphene oxide (GO), graphitic carbon (GC), etc. A few factors like high surface area, excellent electrical conductivity of carbon materials and variable valence metal ions in TMPs caused great enhancement in their electrochemical performance. This article tries to discuss and compare the published data, majorly in last decade, regarding the electrochemical energy storage potential of pristine unary, binary, and ternary TMPs and their hybrid composites with carbonaceous materials (CNTs, GOs/rGOs, GC, etc.). The electrochemical performance of the hybrids has been reported to be higher than the pristine counterparts. It is hoped that the current review will open a new gateway to study and explore the high performance TMPs based supercapacitor materials.

From macro to micro: Biomass-derived advanced carbon microtube assembly for sodium-ion batteries

Developing high-rate anode materials for sodium-ion batteries is important to fulfill the requirement of high-power energy storage applications. Amorphous carbon micro-tubes (CMTs) are favorable for fast Na-ion storage, for the open carbon framework provides sufficient electrode/electrolyte contact and the one-dimensional skeleton offers fast electron and ion diffusion pathways. Herein, N, Fe co-doped carbon micron-tubes (NF-CMTs) were synthesized for the high-rate anode by using bulk biomass as the precursor. The transformation from the macro-sized biomass to the micro-sized carbon tubes was endowed by pyrolysis using N and Fe as catalysts. The open carbon frameworks enable capacitive-controlled capacity contribution, while its N-Fe defects offer multiple active sites for fast Na-ion storage. A high-capacity contribution was demonstrated by the pseudo-capacitive mechanism so that the NF-CMTs performed a superior rate capability of 120 mAh g−1 at 2.0 A g−1. The NF-CMTs with stable micro-tube frameworks exhibited high cycling stability over 1200 cycles, which was much superior to the commercial hard carbon anode. This study provides a cost-effective approach to develop carbon micro-tubes from bulk biomass for high-power SIB anodes.

CargoLinker: Streamlined Container Booking App

The global shipping and logistics industry play a vital role in facilitating international trade, yet small-scale exporters often face challenges in booking cargo container space efficiently. CargoLinker is a web and mobile application designed to bridge this gap, connecting exporters with available cargo container space in a streamlined manner. It is developed using an open source framework named Flutter , CargoLinker aims to enhance the efficiency and affordability of cargo shipping for small-scale exporters. The main aim of this application is to minimize the cost for small traders and maximize the profit for the company. This paper presents an overview of CargoLinker, its features, benefits, development process, challenges, and future directions

A Full-Field Crystal Plasticity Study on the Bauschinger Effect Caused by Non-Shearable Particles and Voids in Aluminium Single Crystals

In the present work, the goal is to use two-scale simulations to be incorporated into the full-field open software DAMASK version 2.0.3 crystal plasticity framework, in relation to the Bauschinger effect caused by the composite effect of the presence of second-phase particles with surrounding deformation zones. The idea is to achieve this by including a back stress of the critical resolved shear stress in a single-phase simulation, as an alternative to explicitly resolving the second-phase particles in the system. The back stress model is calibrated to the volume-averaged behaviour of detailed crystal plasticity simulations with the presence of hard, non-shearable spherical particles or voids. A simplified particle-scale model with a periodic box containing only one of the spherical particles in the crystal is considered. Applying periodic boundary conditions corresponds to a uniform regular distribution of particles or voids in the crystal. This serves as an idealised approximation of a particle distribution with the given mean size and particle volume fraction. The Bauschinger effect is investigated by simulating tensile–compression tests with 5% and 10% volume fractions of particles and with 1%, 2%, and 5% pre-strain. It is observed that an increasing volume fraction increases the Bauschinger effect, both for the cases with particles and with voids. However, increasing the pre-strain only increases the Bauschinger effect for the case with particles and not for the case with voids. The model with back stress of the critical resolved shear stress, but without the detailed particle simulation, can be fitted to provide reasonably close results for the volume-averaged response of the detailed simulations.

The Integration of Fintech into the banking sector

The banking sector has undergone significant transformations with the integration of financial technology (fintech), reshaping traditional banking operations and customer experiences. This research paper explores the evolution of fintech integration into the banking sector, assesses its current landscape and explores its future prospects, opportunities, potential and emerging technologies. The paper begins by providing an overview of the fintech revolution and its impact on banking, highlighting key drivers such as digitalization, consumer demand for convenience, regulatory changes, and technological advancements. It examines how fintech solutions have revolutionized banking operations, including digital banking platforms, payment solutions, data analytics, AI-driven insights, blockchain applications and robotic process automation (RPA). Through an analysis of current trends and empirical studies, the paper delves into the future prospects of fintech in banking, emphasizing its role in expanding financial inclusion, enhancing customer experiences, improving regulatory compliance and fostering collaboration between banks and fintech startups. It explores the role of open banking frameworks, cloud computing, Internet of Things (IoT), biometric authentication and regulatory technology (regtech) in shaping the future of banking. Furthermore, the paper examines the challenges and barriers hindering the widespread adoption of fintech in banking, such as regulatory uncertainty, cybersecurity risks, legacy infrastructure constraints, data privacy concerns and talent shortages. It identifies untapped areas and opportunities for fintech innovation, including small and medium-sized enterprises (SME) lending, wealth management, insurance, trade finance and rural banking. Through a comprehensive analysis of industry trends, regulatory developments and technological innovations, this research paper provides insights into the transformative potential of fintech in the banking sector. It concludes with recommendations for banks, policymakers and stakeholders to capitalize on the opportunities presented by fintech integration, navigate regulatory challenges and leverage emerging technologies to drive innovation, growth and competitiveness in the digital banking era.

Perbedaan Epistemologi Bayani, Irfani dan Burhani dalam Pemikiran Islam

Epistemology is the theory of knowledge in the context of Islamic philosophy, which includes three main approaches: Bayani, Irfani, and Burhani. The Bayani approach centers on the sacred text, while Irfani is concerned with direct experience of spiritual reality. On the other hand, the Burhani approach is based on logic. This research aims to analyze the differences in bayani, irfani and burhani epistemology. By using the literature research method, this study shows that there are differences in 1.) Bayani epistemology 2.) Irfani epistemology 3.) Burhani epistemology. In this study, the analysis of Bayani, Irfani, and Burhani epistemology shows significant differences. The Bayani approach tends to produce dogmatic and intolerant religious views, while the Burhani approach offers an open and philosophical framework. The Irfani 2 approach, on the other hand, explores the dimensions of spiritual experience in depth. The results of this study have a positive impact on the development of Islamic science, strengthening the argument that Western philosophers' thoughts can synergize with Islamic philosophy. By understanding the differences and relevance of each approach, space can be opened for dialogue between intellectual traditions, supporting conflict resolution and promoting peace with a more contextual and scientific approach. Keywords: Epistemology, Bayani, Irfani, Burhani.

Flexible supercapacitors based on carbon fiber cloth coated copper hexacyanoferrate nanoparticles as positive electrode material

Herein, we report fabrication of a new electrode material based on copper(II) hexacyanoferrate(II) nanoparticles coated on flexible and light weight carbon fiber cloth (CuHCF-NPs@CC) for supercapacitors application. Uniform spherical CuHCF-NPs are successfully synthesized through a simple chemical co-precipitation technique at ambient temperature. The CuHCF-NPs were physically examined by different characterizations, for example, FT-IR, UV–Visible, Raman, XRD, XPS, FE-SEM, EDAX and TEM. The CuHCF-NPs@CC is an excellent electrode material that has an open framework structure that can accommodate a wide variety of ions. The electrochemical characteristics of pseudocapacitive behavior of the material were characterized by cyclic voltammogram (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) on two different electrolytes such as K2SO4 and Na2SO4. The CuHCF-NPs@CC exhibits a good reversible cycle in the range of 0 to 0.9 V and excellent charge-discharge performance with a specific capacity of 42.96C g−1 and 24.2C g−1 at 0.2 A g−1 of current density in K2SO4 and Na2SO4 electrolyte, respectively. The low cost, simple preparation methodology, and an outstanding electrochemical behavior of CuHCF-NPs@CC considering a viable candidate for the future energy storage system.