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Boron subphthalocyanine complexes for CO2 electroreduction: molecular design and catalytic insights 用于CO2电还原的亚酞菁硼络合物:分子设计和催化见解。
IF 4.3
Energy advances Pub Date : 2025-09-05 DOI: 10.1039/D5YA00136F
Farzaneh Yari, Simon Offenthaler, Sankit Vala, Dominik Krisch, Markus Scharber and Wolfgang Schöfberger
{"title":"Boron subphthalocyanine complexes for CO2 electroreduction: molecular design and catalytic insights","authors":"Farzaneh Yari, Simon Offenthaler, Sankit Vala, Dominik Krisch, Markus Scharber and Wolfgang Schöfberger","doi":"10.1039/D5YA00136F","DOIUrl":"10.1039/D5YA00136F","url":null,"abstract":"<p >This study presents molecular boron subphthalocyanine complex precursors ((Cl-B-SubPc) <strong>1</strong> and (Cl-B-SubPc-OC<small><sub>12</sub></small>H<small><sub>23</sub></small>) <strong>2</strong>) designed for efficient CO<small><sub>2</sub></small> reduction. The resulting heterogeneous catalysts exhibit remarkable total faradaic efficiencies of up to 98%, integrated into practical cell assemblies. Optimizations encompass not only catalyst design but also operational conditions, facilitating prolonged CO<small><sub>2</sub></small> electrolysis across various current densities. Varied C<small><sub>1</sub></small>-, C<small><sub>2</sub></small>-, and C<small><sub>3</sub></small>-product yields are observed at different reductive potentials, with electrocatalysis experiments conducted up to 200 mA cm<small><sup>−2</sup></small>. Comparative electrochemical analyses across H-cell and zero-gap cell electrolyzers show the potential for industrial scale-up. Mechanistic elucidation <em>via in situ</em> UV-vis spectroelectrochemistry, DFT calculations, and ESR spectroscopy demonstrates the involvement of boron N–C sites, initiating radical formation and utilizing boron's Lewis acid behavior in CO<small><sub>2</sub></small> capture, followed by proton-coupled electron transfer. Overall, the study underscores the transformative potential of boron subphthalocyanine systems in advancing CO<small><sub>2</sub></small> utilization technologies.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1241-1250"},"PeriodicalIF":4.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12455475/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145139612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A sampling fault diagnosis method for power battery data in cloud platforms based on a ResNet–BiLSTM neural network 基于ResNet-BiLSTM神经网络的云平台动力电池数据采样故障诊断方法
IF 4.3
Energy advances Pub Date : 2025-08-25 DOI: 10.1039/D5YA00093A
Yuntao Jin, Zhengjie Zhang, Baitong Chang, Rui Cao, Hanqing Yu, Yefan Sun, Xinhua Liu and Shichun Yang
{"title":"A sampling fault diagnosis method for power battery data in cloud platforms based on a ResNet–BiLSTM neural network","authors":"Yuntao Jin, Zhengjie Zhang, Baitong Chang, Rui Cao, Hanqing Yu, Yefan Sun, Xinhua Liu and Shichun Yang","doi":"10.1039/D5YA00093A","DOIUrl":"https://doi.org/10.1039/D5YA00093A","url":null,"abstract":"<p >As the basis for many functions of the battery management system (BMS) such as state estimation and thermal runaway warning, stable sampling data are crucial for the safe operation of electric vehicles (EVs). In this paper, a sampling fault diagnosis method for power battery data in cloud platforms is proposed based on a residual network (ResNet) and bi-directional long short-term memory (BiLSTM) neural network, which can effectively identify the abnormalities of the battery sampling data and recognize the failure modes. Firstly, through the analysis of fault data and sampling circuits for real EVs, four typical failure modes are selected to complete the fault injection experiments. The physical simulation model of the fault circuit is established, and the corresponding mathematical empirical model is condensed. Then, based on the understanding of the abnormal data distribution pattern, the fault diagnosis algorithms based on a threshold and the ResNet–BiLSTM neural network are developed, respectively. Finally, the algorithms are introduced into the simulation dataset and real-vehicle dataset for testing. The results show that both algorithms have high effectiveness and accuracy, with the latter exhibiting strong fault diagnosis capability. In summary, the proposed sampling fault diagnosis method is feasible and provides a theoretical basis for future multi-type fault diagnosis of BMSs.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1295-1312"},"PeriodicalIF":4.3,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00093a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthetic biology and metabolic engineering paving the way for sustainable next-gen biofuels: a comprehensive review 合成生物学和代谢工程为可持续的下一代生物燃料铺平道路:全面回顾
IF 4.3
Energy advances Pub Date : 2025-08-20 DOI: 10.1039/D5YA00118H
Jiten Yadav, Harneet Marwah and Chandra Kumar
{"title":"Synthetic biology and metabolic engineering paving the way for sustainable next-gen biofuels: a comprehensive review","authors":"Jiten Yadav, Harneet Marwah and Chandra Kumar","doi":"10.1039/D5YA00118H","DOIUrl":"https://doi.org/10.1039/D5YA00118H","url":null,"abstract":"<p >Biofuels are pivotal in transitioning to sustainable energy systems, offering renewable alternatives to fossil fuels with reduced emissions. This review examines the evolution of biofuel production, contrasting first-generation biofuels derived from food crops with second-generation biofuels from non-food lignocellulosic feedstock. This review evaluates social and environmental impacts, with a focus on land use, energy efficiency, and scalability. Advances in synthetic biology and metabolic engineering have revolutionized biofuel production by optimizing microorganisms like bacteria, yeast, and algae for enhanced substrate processing and industrial resilience. Key enzymes, such as cellulases, hemicellulases, and ligninases, facilitate the conversion of lignocellulosic biomass into fermentable sugars. CRISPR-Cas systems enable precise genome editing, while <em>de novo</em> pathway engineering produces advanced biofuels such as butanol, isoprenoids, and jet fuel analogs, boasting superior energy density and compatibility with existing infrastructure. Notable achievements include 91% biodiesel conversion efficiency from lipids and a 3-fold butanol yield increase in engineered Clostridium spp., alongside ∼85% xylose-to-ethanol conversion in <em>S. cerevisiae</em>. However, commercial scalability is hindered by biomass recalcitrance, limited yields, and economic challenges. Emerging strategies, including consolidated bioprocessing, adaptive laboratory evolution, and AI-driven strain optimization, address these barriers. This review also explores biofuel integration within circular economy frameworks, emphasizing waste recycling and carbon-neutral operations. Multidisciplinary research is essential to enhance economic viability and environmental sustainability, ensuring biofuels play a central role in global renewable energy systems.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1209-1228"},"PeriodicalIF":4.3,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00118h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of crystal structure on the thermoelectric properties of n-type SrTiO3 晶体结构对n型SrTiO3热电性能的影响
IF 4.3
Energy advances Pub Date : 2025-08-19 DOI: 10.1039/D5YA00105F
Alveena Z. Khan, Joseph M. Flitcroft and Jonathan M. Skelton
{"title":"Impact of crystal structure on the thermoelectric properties of n-type SrTiO3","authors":"Alveena Z. Khan, Joseph M. Flitcroft and Jonathan M. Skelton","doi":"10.1039/D5YA00105F","DOIUrl":"https://doi.org/10.1039/D5YA00105F","url":null,"abstract":"<p >We present a detailed first-principles study of the electrical and thermal transport, and the thermoelectric figure of merit <em>zT</em>, of the oxide perovskite SrTiO<small><sub>3</sub></small> in the orthorhombic <em>Pnma</em>, tetragonal <em>I</em>4/<em>mcm</em> and cubic <em>Pm</em><img><em>m</em> phases. Analysis of the lattice thermal conductivity shows that the “particle-like” contribution, <em>κ</em><small><sub>p</sub></small>, is highest in the <em>Pm</em><img><em>m</em> phase due to larger phonon group velocities. We also find that all three phases show significant heat transport through glass-like interband tunnelling. On the other hand, we predict the cubic and orthorhombic phases to show superior n-type conductivity, due to significantly stronger polar-optic phonon scattering and shorter electron lifetimes in the tetragonal phase. Due to its superior electrical properties, we predict that the <em>Pm</em><img><em>m</em> phase will attain a 25% larger high-temperature <em>zT</em> than the <em>I</em>4/<em>mcm</em> phase, while we predict the best <em>zT</em> can be obtained for the <em>Pnma</em> phase due to its favourable electrical properties and low <em>κ</em><small><sub>latt</sub></small>. This work provides new insight into the impact of structure type on the thermoelectric performance of oxide perovskites, and indicates targeting particular structure types, <em>e.g.</em> through chemical doping, could provide a facile route to optimising the <em>zT</em> of SrTiO<small><sub>3</sub></small> and related systems.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1279-1294"},"PeriodicalIF":4.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00105f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking catalytic longevity: a critical review of catalyst deactivation pathways and regeneration technologies 解锁催化寿命:催化剂失活途径和再生技术的重要回顾
IF 4.3
Energy advances Pub Date : 2025-08-14 DOI: 10.1039/D5YA00015G
Ifeanyi Michael Smarte Anekwe and Yusuf Makarfi Isa
{"title":"Unlocking catalytic longevity: a critical review of catalyst deactivation pathways and regeneration technologies","authors":"Ifeanyi Michael Smarte Anekwe and Yusuf Makarfi Isa","doi":"10.1039/D5YA00015G","DOIUrl":"https://doi.org/10.1039/D5YA00015G","url":null,"abstract":"<p >Catalyst deactivation remains a fundamental challenge in heterogeneous catalysis, compromising performance, efficiency, and sustainability across numerous industrial processes. This review critically examines the principal deactivation pathways including coking, poisoning, thermal degradation, and mechanical damage and evaluates the breadth of regeneration strategies developed to restore catalytic activity. Traditional methods such as oxidation, gasification, and hydrogenation are assessed alongside emerging approaches like supercritical fluid extraction (SFE), microwave-assisted regeneration (MAR), plasma-assisted regeneration (PAR) and atomic layer deposition (ALD) techniques. The environmental implications and operational trade-offs associated with each regeneration method were evaluated. By integrating recent scientific advancements with bibliometric analysis, this study identifies prevailing research trends and exposes key knowledge gaps in catalyst regeneration. Unlike prior reviews, this work offers a holistic perspective that spans multiple deactivation mechanisms and regeneration routes. Insights into process optimization and environmental impact reduction are presented to guide future innovation in sustainable catalytic system design. By contrasting current progress with unexplored potential, this study provides a basis for promoting innovation and management of sustainable catalysts. It serves as a strategic roadmap for enhancing catalyst longevity and performance in next-generation industrial applications.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 9","pages":" 1075-1113"},"PeriodicalIF":4.3,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00015g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Slug-flow-based continuous manufacturing of Fe-substituted Ni-rich NCM cathodes for lithium-ion batteries: synthesis and modeling 基于段塞流的锂离子电池用铁取代富镍NCM阴极的连续制造:合成与建模
IF 4.3
Energy advances Pub Date : 2025-08-13 DOI: 10.1039/D5YA00032G
Arjun Patel, Michael L. Rasche, Sourav Mallick, Sunuk Kim, Mo Jiang, Mariappan Parans Paranthaman, Herman Lopez and Ram B. Gupta
{"title":"Slug-flow-based continuous manufacturing of Fe-substituted Ni-rich NCM cathodes for lithium-ion batteries: synthesis and modeling","authors":"Arjun Patel, Michael L. Rasche, Sourav Mallick, Sunuk Kim, Mo Jiang, Mariappan Parans Paranthaman, Herman Lopez and Ram B. Gupta","doi":"10.1039/D5YA00032G","DOIUrl":"https://doi.org/10.1039/D5YA00032G","url":null,"abstract":"<p >Continuous production of good quality low-cobalt Ni-rich cathode is needed as it can offer high capacity suitable for electric vehicles. However, the low-cobalt NCM-based materials suffer from a high cation mixing and poor rate capability. Also, proper optimization of co-precipitation reaction parameters as well as the manufacturing platform are needed to obtain NCM-precursor particles with uniform particle size and morphology. In order to address all the issues, in this work, a slug-flow-based manufacturing platform is utilized for the continuous production of Fe<small><sup>3+</sup></small> substituted Ni<small><sub>0.85</sub></small>Co<small><sub>(0.1−<em>x</em>)</sub></small>Mn<small><sub>0.05</sub></small>Fe<small><sub><em>x</em></sub></small>C<small><sub>2</sub></small>O<small><sub>4</sub></small> (where <em>x</em> = 0, 0.02, 0.04) precursors. The slug-flow manufacturing produces precursor particles with high yield and uniformity. The effect of reactants concentration on the product yield and composition is analyzed through mathematical modelling. Finally, the electrochemical performance of the Ni-rich cathodes with various amounts of Co and Fe content is analyzed through rate capability, cycling stability, and impedance analysis. This work provides key insight into: (i) reactor design for continuous production; (ii) mathematical modelling of the precipitation reaction parameter; and (iii) a detail study of the effect of Co-substitution with Fe<small><sup>3+</sup></small> in Ni-rich NCM on its physical properties as well as electrochemical performance. We find that an intermediate Fe content provides optimum cathode with desired properties.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1267-1278"},"PeriodicalIF":4.3,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00032g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First principles study of alkali metal-decorated bismuth selenide for hydrogen storage applications 碱金属修饰的硒化铋储氢第一性原理研究
IF 4.3
Energy advances Pub Date : 2025-08-12 DOI: 10.1039/D5YA00149H
Asma Kiran, Saleh S. Alarfaji, Muhammad Bilal Tahir and Muhammad Isa Khan
{"title":"First principles study of alkali metal-decorated bismuth selenide for hydrogen storage applications","authors":"Asma Kiran, Saleh S. Alarfaji, Muhammad Bilal Tahir and Muhammad Isa Khan","doi":"10.1039/D5YA00149H","DOIUrl":"https://doi.org/10.1039/D5YA00149H","url":null,"abstract":"<p >The identification of novel two-dimensional materials is often highly valued because of their extraordinary characteristics and prospective uses. This study presents a new bismuth selenide (Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small>) monolayer based on density functional theory (DFT). Its bandgap, state density, and mobilities are determined and examined. This study investigates hydrogen storage in Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> adorned with alkali metal (Li/Na and K) atoms. The optimal adsorption site for alkali metal (AM) atoms on the Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> monolayer is located above an Se atom. The AM atoms are physically adsorbed on Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small>, and the electronic charge shifts from these to the Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> monolayer. In all scenarios examined, hydrogen molecules are physically adsorbed onto AM–Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> complexes, suggesting that these systems could be employed for hydrogen storage. The K–Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> monolayer shows the highest hydrogen storage capacity, with one potassium atom adsorbing up to 19 hydrogen molecules, while both Na–Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> and Li–Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> could adsorb 18 hydrogen molecules. It is estimated that the hydrogen-storage gravimetric capacities of AM–Bi<small><sub>2</sub></small>Se<small><sub>3</sub></small> are within the US-DOE criteria, where the adatom coverage reaches about 6.71 wt% for K, 6.52 wt% for Na, and 6.66 wt% for Li.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1251-1266"},"PeriodicalIF":4.3,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00149h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Competing ion effects and electrolyte optimization for electrochemical lithium extraction from spent lithium iron phosphate battery cathodes 从废磷酸铁锂电池阴极中电化学提取锂的竞争离子效应及电解质优化
IF 4.3
Energy advances Pub Date : 2025-08-04 DOI: 10.1039/D5YA00172B
Stefanie Arnold and Volker Presser
{"title":"Competing ion effects and electrolyte optimization for electrochemical lithium extraction from spent lithium iron phosphate battery cathodes","authors":"Stefanie Arnold and Volker Presser","doi":"10.1039/D5YA00172B","DOIUrl":"https://doi.org/10.1039/D5YA00172B","url":null,"abstract":"<p >With rising demand for lithium-ion batteries, efficient recycling is crucial. While conventional methods face cost and environmental challenges, electrochemical recovery offers a sustainable and energy-efficient alternative. In this study, we investigate the electrochemical recovery of lithium-ions from spent lithium iron phosphate batteries using carbon-coated lithium iron phosphate electrodes, with a focus on the influence of pH adjustment and competing ion effects. Our results demonstrate that NaOH-adjusted electrolytes provide the highest lithium-ion recovery efficiency, with an average removal capacity of 18 mg<small><sub>Li</sub></small> g<small><sub>LFP</sub></small><small><sup>−1</sup></small> over 50 cycles. However, prolonged cycling leads to capacity fading, particularly in the presence of competing cations such as Na<small><sup>+</sup></small> and K<small><sup>+</sup></small>, which impact lithium selectivity and electrode stability. These findings underscore the importance of optimizing electrolyte conditions and electrode materials to enhance long-term performance. Future research should explore alternative pH control strategies and scalable process designs to facilitate industrial implementation. Advancing electrochemical lithium-ion recovery aligns with broader sustainability goals, offering a viable route toward circular battery recycling and reduced environmental impact.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 9","pages":" 1114-1129"},"PeriodicalIF":4.3,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00172b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic enhancement of high-entropy oxide electrocatalysts for high areal-energy rechargeable zinc air batteries† 高面积能可充电锌空气电池用高熵氧化物电催化剂的磁增强研究
IF 4.3
Energy advances Pub Date : 2025-07-29 DOI: 10.1039/D5YA00091B
Ernst H. Hechter, Aderemi B. Haruna, Xiao-Yu Yang, Maxwell W. Terban, Héctor D. Abruña, Dean H. Barrett and Kenneth I. Ozoemena
{"title":"Magnetic enhancement of high-entropy oxide electrocatalysts for high areal-energy rechargeable zinc air batteries†","authors":"Ernst H. Hechter, Aderemi B. Haruna, Xiao-Yu Yang, Maxwell W. Terban, Héctor D. Abruña, Dean H. Barrett and Kenneth I. Ozoemena","doi":"10.1039/D5YA00091B","DOIUrl":"https://doi.org/10.1039/D5YA00091B","url":null,"abstract":"<p >High-entropy spinel oxide (Cu<small><sub>0.2</sub></small>Co<small><sub>0.2</sub></small>Fe<small><sub>0.2</sub></small>Mn<small><sub>0.2</sub></small>Ni<small><sub>0.2</sub></small>)<small><sub>3</sub></small>O<small><sub>4</sub></small> nanoparticles were synthesized and confined in Vulcan carbon for use as a bifunctional OER/ORR catalyst in a rechargeable zinc–air battery (RZAB). A partially inverted spinel phase with a distorted O<small><sup>2−</sup></small> lattice was found, with metals randomly distributed in M<small><sup>2+</sup></small> and M<small><sup>3+</sup></small> states. Copper was the exception, being found only as Cu<small><sup>2+</sup></small>. Strong metal oxide–support interactions were noted, as well as ferromagnetism. The composite exhibited moderate intrinsic catalytic activity, with overpotentials and current densities comparable to those of commercial platinum on carbon catalysts even at low loadings: an example being <em>E</em><small><sub><em>j</em>=10</sub></small> of 1.53 V. Magnetic enhancement was noted and associated with the final OER and initial ORR electron transfers. The performance of the test RZAB was greatly improved when an external magnetic field was applied, with peak power increasing from 101 to 169 mW cm<small><sup>−2</sup></small>. We report the most significant magnetic enhancement in the RZAB power profile in the literature to date, as well as improved RZAB stability and areal energy, achieving 43.2 mWh cm<small><sup>−2</sup></small> for over 140 h during 36 h charge–discharge cycles. This work offers insights into the mechanism of magnetic enhancement in the case of high-entropy materials, and illustrates the use of combined strategies to achieve stable, cost-efficient, and effective bifunctional OER/ORR electrocatalysis.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 10","pages":" 1229-1240"},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00091b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2D layered VSe2 with high pseudocapacitive Zn-ion storage as a cathode for high-power zinc-ion batteries 具有高赝容性锌离子存储的二维层状VSe2作为大功率锌离子电池的阴极材料
IF 4.3
Energy advances Pub Date : 2025-07-28 DOI: 10.1039/D5YA00130G
Saddam Hussain, Mayanmi Zimik, Meghali Devi, Md Kasif and Ranjith Thangavel
{"title":"2D layered VSe2 with high pseudocapacitive Zn-ion storage as a cathode for high-power zinc-ion batteries","authors":"Saddam Hussain, Mayanmi Zimik, Meghali Devi, Md Kasif and Ranjith Thangavel","doi":"10.1039/D5YA00130G","DOIUrl":"https://doi.org/10.1039/D5YA00130G","url":null,"abstract":"<p >Aqueous zinc-ion batteries (ZIBs) are an attractive storage solution for renewable energy storage system (ESS) applications. Despite the intrinsic safety, eco-friendliness, and low cost of aqueous ZIBs, their practical application is severely hindered by the unavailability of high-capacity and robust cathode materials. Vanadium-based cathodes with various structures, large layer spacing, and different oxidation states are considered to be suitable cathode candidates for ZIBs. In this work, we studied 2D layered VSe<small><sub>2</sub></small> with high pseudocapacitive-mediated Zn-ion storage as a cathode for aqueous zinc-ion batteries. The VSe<small><sub>2</sub></small> cathode reversibly hosted zinc ions with a capacity of 205 mAh g<small><sup>−1</sup></small> at 0.2 A g<small><sup>−1</sup></small>, maintaining a capacity of 135 mAh g<small><sup>−1</sup></small> at 8 A g<small><sup>−1</sup></small> and a stability of 98% after 600 cycles at 1 A g<small><sup>−1</sup></small>, favoured by its 2D layered structure with defects and metallic conducting nature. The Zn-ion storage mechanism and kinetics in the cathode are examined using <em>ex situ</em> XRD, XPS, TEM, and GITT studies, and it is found that the favourable interlayer spacing with structural defects efficiently stored Zn-ions through a high contribution from capacitive-mediated storage. The favourable architecture enables fast Zn-ion diffusion and high capacity at a high current rate with good stability. The current work emphasizes the potential for the rational design of several transition-metal–dichalcogenide-based cathodes with strong pseudocapacitive storage for sustainable energy storage systems such as aqueous ZIBs.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":" 9","pages":" 1154-1166"},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ya/d5ya00130g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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