Sustainable Energy & Fuels最新文献

{"title":"Integration of solar passive heating strategies in low-cost biogas plants","authors":"Juan Jaramillo, Liliana Castro, Humberto Escalante and Jaime Martí-Herrero","doi":"10.1039/D5SE00441A","DOIUrl":"https://doi.org/10.1039/D5SE00441A","url":null,"abstract":"<p >This study analyzes the influence of various solar passive heating designs on the thermal performance of low-cost tubular digesters in cold climate regions through experimental and simulation tools. Five full-scale low-cost tubular digesters were monitored in the Andean region: one with both greenhouse and trench insulation, two with trench insulation only (thicknesses of 1 cm and 5 cm), one with a greenhouse only, and control (without any solar passive heating design). The most effective solar passive strategy was found to be the combination of greenhouse and insulation, achieving a slurry temperature increase of +7.4 °C above the ambient temperature. The trench insulation enhanced the slurry temperature, with temperature increases ranging from +4.3 °C to +6 °C, depending on the insulation thickness. Conversely, greenhouses alone showed minimal thermal benefit (+0.8 °C). A unique simplified dynamic thermal model was developed to simulate the thermal performance of these digesters, achieving a root mean square error below 1 °C across all configurations. These findings demonstrate that solar passive heating designs can substantially improve the efficiency of anaerobic digestion in cold climates, promoting sustainable biogas production.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4133-4145"},"PeriodicalIF":5.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kraft lignin depolymerization by the Fenton process assisted by hydrodynamic cavitation†","authors":"Lucas Ramos, Giovani Maltempi-Mendes, Julio C. Santos and Anuj Kumar Chandel","doi":"10.1039/D5SE00436E","DOIUrl":"https://doi.org/10.1039/D5SE00436E","url":null,"abstract":"<p >Lignin is a highly branched and hardly biodegradable macromolecule that is mass-produced mainly as a byproduct of the pulp and paper industry. Lignin-containing wastewater generally confers high levels of chemical oxygen demand (COD) and presents a threat to aquatic life forms. As an alternative, lignin-containing effluents can be treated through Advanced Oxidation Technologies (AOTs) using the Fenton reaction, which involves the action of hydrogen peroxide (H<small>₂</small>O<small>₂</small>) and iron ions. In this context, a Box–Behnken 2<small>³</small> experimental design was employed to optimize lignin degradation by the Fenton process assisted by hydrodynamic cavitation. Reactions were conducted in a batch reactor (V = 2.5 L), and a kinetic study of lignin degradation was performed in order to characterize and assess the efficiency of the oxidative process. The results revealed that the AOT assisted by hydrodynamic cavitation (HC) was highly efficient in lignin depolymerization. A quadratic model developed for the response variable lignin concentration (mg L<small>⁻¹</small>) exhibited a correlation coefficient (<em>R</em><small>²</small>) of 0.918, indicating the model's quality and its ability to confidently predict the value of the variable with the greatest influence on the depolymerization process. Under the optimized conditions ([Fe<small>³⁺</small>] = 25.0 mM, [H<small>₂</small>O<small>₂</small>] = 272.9 mM, <em>P</em> = 1.78 atm), 98% conversion in the lignin depolymerization reaction was achieved in 2 hours of processing. The chemical structures of the depolymerized lignin were studied using pyrolysis coupled with gas chromatography-mass spectrometry (Py-GC/MS), aiming to identify and quantify the monomers and dimers obtained in the depolymerization process. The main compounds identified were benzyl alcohol, guaiacol, 2-methoxy-4-methylphenol, vanillic acid, and syringaldehyde. Furthermore, <em>P. putida</em> expressed growth in a culture medium supplemented with low-aromatic-weight lignin molecules after depolymerization. These results highlight that lignin utilization is crucial for the development of biorefineries and the optimization of the production chain. However, further research is needed to refine the process and recover the bioproducts derived from kraft lignin.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4077-4088"},"PeriodicalIF":5.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A geothermal energy techno-economic analysis for downhole wellbore hydrogen production from biogas with subsurface carbon retention","authors":"S. Gillick and M. Babaei","doi":"10.1039/D5SE00186B","DOIUrl":"https://doi.org/10.1039/D5SE00186B","url":null,"abstract":"&lt;p &gt;Improving overall resource efficiency enhances energy security. Biogas is an important asset within waste management, transforming a range of organic waste into a higher-value product. By creating integrated partnerships, sector coupling highlights the synergies of Geothermal Energy, District Heating, Industry-CO&lt;small&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;/small&gt;, Biowaste and Agriculture. This paper offers a perspective on a novel geothermal methodology for the wellbore reformation of biogas to generate hydrogen production with &lt;em&gt;in situ&lt;/em&gt; carbon capture and storage (CCS) and proposes a new disruptive approach with a more immediate, direct and effective route to net zero. The methodology is referred to here as Carbon Injection and Gasification Geothermal (CIGG). The CIGG process combines several processes (&lt;em&gt;i.e.&lt;/em&gt;, hydrogen generation, carbon capture and biogas upgrading) with low-grade heat geothermal to eliminate process steps, saving process energy, costs, and materials, to create one, combined, sustainable solution. To capture these synergies, a wellbore methane reformation tool is proposed that exploits the natural geo-pressure from geothermal reservoirs and their associated formation fluid (hereafter power fluid). The hot injected CO2 waste stream eliminates the temperature depletion of the formation that is normally associated with geothermal power fluids. The immediate, &lt;em&gt;in situ&lt;/em&gt;, downhole capture of CO&lt;small&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;/small&gt; will also enable improved geothermal power efficiencies from any CO&lt;small&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;/small&gt; partially recirculated within the power fluid. With geothermal wells having an expected life span of 15–25 years these synergies will enhance energy security for the long term. The CIGG process is proposed as a true win–win for both the energy economy and environmental stewardship, future-proofing biogas assets against emerging climate laws that restrict carbon production. It is climate-beneficial while creating a more holistic, sustainable CCS system that is a free byproduct of a net-energy production system, which simultaneously reduces carbon footprint to accelerate net zero goals. A techno-economic analysis was performed to estimate the cost of hydrogen generation, together with analysis supported by chemical reactions simulation covering energy and mass balance. These estimates show that with a biogas delivery of 4 MMSCFD (with 50% CO&lt;small&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;/small&gt; content), from 4 to 5 medium–high volume biomass Anaerobic Digestion plants (each generating 0.8–1.0 MMSCFD of biogas), it is possible to generate hydrogen at around 3 to 4 USD per kg from feeding 2 geothermal wells. Using a CIGG methodology, geothermal wells do not need to be drilled deep (&lt;em&gt;e.g.&lt;/em&gt;, 5000–7000 m) to reach hot reservoirs at &gt;200 °C with normal geothermal temperature gradients. These high temperatures can now be realized using power fluids from shallower (&lt;em&gt;e.g.&lt;/em&gt;, 1500–2000 m), better quality, sedimentary reservoirs through heat r","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4023-4040"},"PeriodicalIF":5.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d5se00186b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dehydration of highly viscous polyol (1,2,4-butanetriol) using microwave-induced sweep gas membrane distillation (MIMD) on nanocarbon-immobilized membranes","authors":"Mitun Chandra Bhoumick, Benjamin G. Harvey, Derek D. Zhang and Somenath Mitra","doi":"10.1039/D5SE00319A","DOIUrl":"https://doi.org/10.1039/D5SE00319A","url":null,"abstract":"<p >A challenge facing the synthesis of bioderived platform chemicals such as polyols and polyacids <em>via</em> fermentation processes is their separation from dilute aqueous streams. This study presents microwave-induced membrane distillation (MIMD) as a method for concentrating viscous 1,2,4-butanetriol (BT) at concentrations that can be sourced from fermentation broth. MIMD and sweep gas membrane distillation (SGMD) processes were employed to concentrate BT feed solutions utilizing nanocarbon-based membranes, namely the carbon nanotube immobilized membrane (CNIM) or the graphene oxide immobilized membrane (GOIM). Microwave heating (MWH) was utilized to elevate the temperature of the feed system and was found to be superior to conventional heating (CH) in terms of flux, mass transfer coefficients and thermal efficiency. Our findings reveal that GOIMs exhibited an 11.5% higher dehydration rate compared to CNIMs. Initial water flux reached 14.1 kg m<small>⁻²</small> h<small>⁻¹</small>, albeit this value decreased thereafter as the concentration of BT increased, thus limiting mass transfer coefficients due to increased viscosity, which reached 11.41 mPa s at 90 wt% and 80 °C. Overall, MWH substantially alleviated this issue, leading to a flux as high as 15.7 kg m<small>⁻²</small> h<small>⁻¹</small> and a 35% improvement in mass transfer coefficients over CH. The overall thermal efficiency of BT concentration reached 74.5% for GOIM-based MIMD with a specific energy consumption (SEC) of 263 kW h m<small>⁻³</small>, which showed a 6.5% reduction compared to CH.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4068-4076"},"PeriodicalIF":5.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and investigation of a magnetic coupling piezoelectric inertial energy harvesting system for low-power wireless sensors in intercity buses†","authors":"Zhen Zhao, Xiaohui Zhang, Baifu Zhang, Haichuan Cui, Xinjun Li and Enyu He","doi":"10.1039/D5SE00387C","DOIUrl":"https://doi.org/10.1039/D5SE00387C","url":null,"abstract":"<p >As Internet of Things technology rapidly advances, the issue of self-powering in wireless sensors has garnered significant attention. During the operation of new energy buses, a considerable amount of inertial energy is frequently converted into other forms. This paper presents a magnetic coupling piezoelectric inertial energy harvesting system (MPIHS) designed to supply or store power for low-power wireless sensors by effectively recovering inertial energy generated during the operation of buses. The system consists of an energy collection module, motion transmission module, energy transduction module, and a power reservoir module. Part of the lost inertial energy is translated into the rotor's kinetic energy, enabling unidirectional output and a speed increase. The mechanical energy is transformed into electrical energy <em>via</em> the piezoelectric effect, while a dedicated adjustment circuit is designed to effectively store the electrical energy generated. According to the actual historical working condition data of the bus, the MPIHS's maximum output power has been determined to be 7.1 mW. The charging times for capacitor voltages of 100 μF, 220 μF, 330 μF, 470 μF, and 680 μF to reach 2 V are 9 s, 22 s, 30 s, 40 s, and 54 s, respectively. In the feasibility test, the MPIHS demonstrates the capability to illuminate 96 LED bulbs. Additionally, the temperature and humidity sensor functions effectively. These results suggest the practicality and potential applications of the MPIHS as a power source or supplemental power supply for low-power electrical appliances in vehicles.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 14","pages":" 3935-3953"},"PeriodicalIF":5.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exceptional intrinsic bifunctional performance of Fe2N–Fe3C heterostructure and STH efficiency†","authors":"Mayakrishnan Raj kumar, Dhanasingh Thiruvengadam, Kaliyamoorthy Santhosh kumar, Kuppusamy Rajan, Jayaraman Jayabharathi and Manoharan Padmavathy","doi":"10.1039/D5SE00251F","DOIUrl":"https://doi.org/10.1039/D5SE00251F","url":null,"abstract":"<p >Developing cost-effective, efficient bifunctional electrocatalysts is crucial for large-scale H<small>₂</small> production through electrochemical water splitting. Herein, we established a dual effect synthetic strategy to construct an Fe<small>₂</small>N–Fe<small>₃</small>C heterostructure as a highly active bifunctional electrocatalyst, derived from egg as the N/C-source and FeCl<small>₃</small> as the iron source. The fabricated Fe<small>₂</small>N–Fe<small>₃</small>C heterostructure required overpotentials of ±151 and ±251 mV for the HER and OER, respectively. The heterostructured Fe<small>₂</small>N–Fe<small>₃</small>C nanosphere worked as a bifunctional active site for water dissociation and the adsorption/desorption of intermediates, while Fe<small>₂</small>N transferred electrons between the active sites and the NF current collector through Fe<small>₂</small>N–Fe<small>₃</small>C bonds. The improved OER activity was further confirmed by Bode analysis at various potentials. Temperature-dependent analysis revealed that 8HFe<small>₂</small>N–Fe<small>₃</small>C showed decreased activation energy (3.65 kJ mol<small>⁻¹</small>) compared with 7HFe<small>₂</small>N–Fe<small>₃</small>C (6.51 kJ mol<small>⁻¹</small>) and 9HFe<small>₂</small>N–Fe<small>₃</small>C (10.46 kJ mol<small>⁻¹</small>). The effect of phosphate anions on the OER activity of 8HFe<small>₂</small>N–Fe<small>₃</small>C/NF was analysed by changing the electrolyte from 1 M KOH to a mixture of 1 M KOH and 1 M NaH<small>₂</small>PO<small>₄</small>. Further, an electrolyzer with an Fe<small>₂</small>N–Fe<small>₃</small>C<small>^(+,−)</small> electrode required an ultralow 1.56 V to reach 10 mA cm<small>⁻²</small> for rapid H<small>₂</small> generation with 100% faradaic efficiency, exceeding that of the Pt/IrO<small>₂</small> couple. The Fe<small>₂</small>N–Fe<small>₃</small>C heterostructure maintained stability over 50 h for the HER, OER and overall water splitting. Renewable energy derived H<small>₂</small> generation was established using a solar-assisted electrolyzer at 1.56 V, suggesting the capability of utilizing the full biomass material using the dual effect strategy for efficient energy conversion.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 14","pages":" 3911-3926"},"PeriodicalIF":5.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gradient-coated P-doped Si3N4 with dual functions for silicon anodes: stress buffering and charge transport enhancement†","authors":"Yi Zhong, Bichen Yu, Lanqing Xu, Yajing Huang, Yongping Zheng, Jiaxing Li and Zhigao Huang","doi":"10.1039/D5SE00347D","DOIUrl":"https://doi.org/10.1039/D5SE00347D","url":null,"abstract":"<p >To address the challenges of silicon anodes, including large volume changes and low ion mobility in Li-ion batteries, we propose a novel strategy: directly forming P-Si<small>₃</small>N<small>₄</small> protective layers on Si particles. This coating mitigates structural degradation during cycling while enhancing electrical conductivity. Additionally, integrating pitch creates a conductive network, leveraging the high carrier concentration of P-Si<small>₃</small>N<small>₄</small> for efficient electron transfer at high current densities. The N,P-Si@PC composite exhibits exceptional stability and capacity retention. Even after 800 cycles at current densities of 1 A g<small>⁻¹</small> and 3 A g<small>⁻¹</small>, it maintains high capacities of 695 mAh g<small>⁻¹</small> and 427 mAh g<small>⁻¹</small>, respectively. To elucidate the underlying mechanisms, we performed elasticity tensor analysis and Density Functional Theory (DFT) calculations. These studies reveal that P-Si<small>₃</small>N<small>₄</small> enhances mechanical resilience, effectively reducing stress-induced fractures and limiting Solid Electrolyte Interphase (SEI) growth. Furthermore, DFT results indicate that phosphorus doping narrows the band gap, increasing carrier concentration and improving the conductivity of the protective layer. These alternative versions offer varied perspectives on addressing challenges with silicon-based Li-ion battery anodes through innovative coating strategies and theoretical insights into their mechanisms of action.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4125-4132"},"PeriodicalIF":5.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystallization control of antisolvent-free perovskite films using alkali metal additives for improving efficiency and extending applicability of perovskite solar cells†","authors":"Min Jun Choi, Veera Murugan Arivunithi, So Jeong Shin, Gyeong G. Jeon, Hye W. Chun, Inho Bae, Dong Won Kim and Jong H. Kim","doi":"10.1039/D5SE00421G","DOIUrl":"https://doi.org/10.1039/D5SE00421G","url":null,"abstract":"<p >The antisolvent-free fabrication of perovskite solar cells (PSCs) is a promising approach to secure their reproducibility and scalability. However, achieving high efficiency and uniform crystallization without antisolvent remains a critical challenge. In this study, we introduce alkali metal salts as additives to control the crystallization process and enhance the photovoltaic (PV) properties of antisolvent-free PSCs. The incorporation of KPF<small>₆</small> effectively modulates the perovskite growth kinetics, resulting in improved grain size, reduced defect density, and enhanced charge transport properties. As a result, the optimized PSCs exhibit a significant improvement in power conversion efficiency (PCE) compared to the reference devices without KPF<small>₆</small>. Moreover, the addition of KPF<small>₆</small> enabled large-area and semi-transparent antisolvent-free perovskite layers with great uniformity. This work provides valuable insights into rational additive engineering for crystallization control to achieve high efficiency antisolvent-free PSCs, paving the way for the development of scalable PSCs and their broad applications.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4046-4055"},"PeriodicalIF":5.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d5se00421g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated approach to waste tire pyrolysis for value-added products: process optimization and a comprehensive economic study for scalability†","authors":"Uma Sankar Behera, Sourav Poddar and Hun-Soo Byun","doi":"10.1039/D5SE00458F","DOIUrl":"https://doi.org/10.1039/D5SE00458F","url":null,"abstract":"<p >The improper disposal of waste tires poses significant environmental risks to land, water, and air, leading to health hazards. Previous studies on waste tire pyrolysis predominantly focused on liquid fuel production or carbon black, with limited emphasis on the comprehensive analysis of char, liquid, and gas yields. This study investigates the pyrolysis of waste tires to produce these valuable products, emphasizing their potential applications across various domains. Experiments were conducted in a 10 kg reactor, varying feedstock amounts from 1 to 10 kg, temperatures from 573 to 1173 K, and heating rates between 10 and 30 K min<small>⁻¹</small>. Char formation decreases with rising temperature until stabilizing, gas yield increases to a maximum before becoming constant, and oil yield initially increases slightly before declining or stabilizing with further temperature increase. Detailed characterization of feedstock and pyrolysis products was performed, including scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) for char, Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) for oil, and GC for gas to understand their properties and applicability in various fields. Optimal yields of char (27.61%), oil (46.34%), and gas (26.05%) were achieved at 5.5 kg feedstock, 873 K, and a heating rate of 20 K min<small>⁻¹</small>. A detailed cost analysis showed payback periods of 1.5 years, 1.7 years, and 1.85 years at discount rates of 10%, 20%, and 30%, respectively, with an internal return rate (IRR) of 18%. The crossover of net present value (NPV) from positive to negative marked the threshold, highlighting an industrial-scale economic focus rarely addressed in earlier studies. Sensitivity analysis confirmed the economic feasibility and suitability of the process for industrial applications, aligning with the objectives of the UN Sustainable Development Goals 2030.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4103-4124"},"PeriodicalIF":5.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elucidating the synergistic benefits of the ternary metal components in a cobalt–molybdenum hybrid sulfide–nickel nitride composite as supercapacitor electrodes†","authors":"Shalakha Saha, Chandra Shekhar Sharma, Nishar Hameed and Nisa Salim","doi":"10.1039/D5SE00399G","DOIUrl":"https://doi.org/10.1039/D5SE00399G","url":null,"abstract":"<p >Inspired by pursuing next-generation supercapacitors through the innovative use of hierarchical multi-component electrodes, we embraced a sophisticated blending strategy. By synergistically integrating diverse classes of materials, we aimed to harness and amplify their unique properties, setting the stage for groundbreaking advancements in energy storage technology. The present study investigates the electrochemical properties of the cobalt–molybdenum-based hybrid sulfide and nickel nitride integrated into one system (CMS/NiN/NF) for application as electrodes in supercapacitors. Integrating nickel nitride into the cobalt–molybdenum hybrid sulfide produced a hierarchical structure, where the nanosheets assemble to form a flower-like structure, which appears to be an interconnected continuous structure analogous to a flower string. Such hierarchical structures enhance the exposure of redox active sites, providing multiple diffusion pathways and acting as an electrolyte reservoir. On evaluating CMS/NiN/NF for its charge storage properties, a specific capacitance value of 4411 F g<small>⁻¹</small> at a current density of 2 A g<small>⁻¹</small> was attained, outperforming the hybrid sulfide. Further, when assembled in an asymmetric device with CMS/NiN/NF as the positive electrode and reduced graphene oxide (rGO) as the negative electrode, it exhibits a specific energy value of 58 Wh kg<small>⁻¹</small> at a specific power of 200 W kg<small>⁻¹</small>. Thus, the blending approach proved rewarding in producing hybrid materials for high-performance energy storage devices.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 15","pages":" 4089-4102"},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}