Sustainable Energy & Fuels最新文献

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An intelligent battery management system (BMS) with end-edge-cloud connectivity – a perspective
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-22 DOI: 10.1039/D4SE01238K
Sai Krishna Mulpuri, Bikash Sah and Praveen Kumar
{"title":"An intelligent battery management system (BMS) with end-edge-cloud connectivity – a perspective","authors":"Sai Krishna Mulpuri, Bikash Sah and Praveen Kumar","doi":"10.1039/D4SE01238K","DOIUrl":"https://doi.org/10.1039/D4SE01238K","url":null,"abstract":"<p >The widespread adoption of electric vehicles (EVs) and large-scale energy storage has necessitated advancements in battery management systems (BMSs) so that the complex dynamics of batteries under various operational conditions are optimised for their efficiency, safety, and reliability. This paper addresses the challenges and drawbacks of conventional BMS architectures and proposes an intelligent battery management system (IBMS). Leveraging cutting-edge technologies such as cloud computing, digital twin, blockchain, and internet-of-things (IoT), the proposed IBMS integrates complex sensing, advanced embedded systems, and robust communication protocols. The IBMS adopts a multilayer parallel computing architecture, incorporating end-edge-cloud platforms, each dedicated to specific vital functions. Furthermore, the scalable and commercially viable nature of the IBMS technology makes it a promising solution for ensuring the safety and reliability of lithium-ion batteries in EVs. This paper also identifies and discusses crucial challenges and complexities across technical, commercial, and social domains inherent in the transition to advanced end-edge-cloud-based technology.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1142-1159"},"PeriodicalIF":5.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01238k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489320","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}
引用次数: 0
2D Ti3C2Tx–xGnP incorporating PVDF/PMMA blend composites for dielectric capacitors
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-22 DOI: 10.1039/D4SE01451K
Nitesh Kumar Nath, R. K. Parida, B. N. Parida and Nimai C. Nayak
{"title":"2D Ti3C2Tx–xGnP incorporating PVDF/PMMA blend composites for dielectric capacitors","authors":"Nitesh Kumar Nath, R. K. Parida, B. N. Parida and Nimai C. Nayak","doi":"10.1039/D4SE01451K","DOIUrl":"https://doi.org/10.1039/D4SE01451K","url":null,"abstract":"<p >A comprehensive study of the dielectric and ferroelectric characteristics of polymer composites of xGnP–MXene hybrids (GMHs) in PVDF/PMMA blend films made <em>via</em> a solution casting method is reported. In the present study, we processed a flexible dielectric material by utilizing xGnP–MXene hybrids (GMHs) in a PVDF/PMMA blend. The heterogeneous polymer–polymer and polymer–GMH interactions in these hybrid nanocomposites (HNCs), as well as the composition-dependent crystal phases of the PVDF, were validated by the structural and morphological characteristics. The permittivity and AC conductivity of a composite containing 15 wt% hybrids are 157.4 and 8.04 × 10<small><sup>−8</sup></small> S cm<small><sup>−1</sup></small> at 100 Hz, respectively. These values are 15 times and 5 orders of magnitude greater than those of the pure blend. Thermal analysis showed 13.59% crystallinity for 15 wt% HNCs. The maximum energy density of the 15 wt% HNC is 2.78 J cm<small><sup>−3</sup></small>, and its power density is 12.12 MW cm<small><sup>−3</sup></small>. An excellent balance of dielectric properties was accomplished by combining Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> and xGnP in a suitable (1 : 1 wt%) ratio. The processed materials are particularly effective in flexible microelectronic devices and are especially efficient at storing energy in dielectric capacitors.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 4","pages":" 1120-1129"},"PeriodicalIF":5.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01451k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379726","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}
引用次数: 0
Impact of the hole transport layer on the space charge distribution and hysteresis in perovskite solar cells analysed by capacitance–voltage profiling†
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-21 DOI: 10.1039/D4SE01262C
E. Regalado-Pérez, Evelyn B. Díaz-Cruz and J. Villanueva-Cab
{"title":"Impact of the hole transport layer on the space charge distribution and hysteresis in perovskite solar cells analysed by capacitance–voltage profiling†","authors":"E. Regalado-Pérez, Evelyn B. Díaz-Cruz and J. Villanueva-Cab","doi":"10.1039/D4SE01262C","DOIUrl":"https://doi.org/10.1039/D4SE01262C","url":null,"abstract":"<p >This study explores the influence of the hole transport layer (HTL) on space charge distribution and hysteresis in perovskite solar cells (PSCs) using capacitance–voltage (<em>C</em>–<em>V</em>) profiling. Drift-diffusion simulations and experimental <em>C</em>–<em>V</em> measurements were employed to analyse devices incorporating Spiro-OMeTAD and CuSCN as HTLs. The simulations revealed that ionic charge accumulation predominantly at the perovskite/HTL interface affects the internal electric field distribution, with mobile cation density playing a crucial role in screening the built-in electric field within the perovskite layer. The density of mobile cations in the perovskite can increase by the diffusion of Li<small><sup>+</sup></small> and Co<small><sup>3+</sup></small> ions from the Spiro-OMeTAD layer, resulting in a more steep and narrow doping profile compared to the CuSCN-based device. Simulations and experiments demonstrate that mobile ions, despite not directly responding to the high-frequency AC signals used in <em>C</em>–<em>V</em> characterisation, influence capacitance by affecting electronic carrier distribution. Analysis of doping profiles reveals that bias-modulated ionic accumulation at interfaces contributes to both U-shaped and distinct W-shaped doping profiles observed in Spiro-OMeTAD devices. Devices with Spiro-OMeTAD exhibited higher capacitance and more pronounced hysteresis due to intensified charge accumulation, while CuSCN-based devices displayed a faster capacitance response and reduced hysteresis, attributed to a more uniform charge distribution. Despite the increased hysteresis in Spiro-OMeTAD devices, they achieved higher power conversion efficiencies (PCE), highlighting a complex relationship between hysteresis and performance and emphasising the importance of HTL selection and ion management for PSC optimisation.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1225-1235"},"PeriodicalIF":5.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489328","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}
引用次数: 0
Surface engineering to mitigate compressive stress and detrimental reactions in NiOx-based inverted perovskite solar cells†
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-21 DOI: 10.1039/D4SE01434K
Zijin Qiao, Hongye Dong, Guibin Shen, Xiangning Xu, Wang Yao and Cheng Mu
{"title":"Surface engineering to mitigate compressive stress and detrimental reactions in NiOx-based inverted perovskite solar cells†","authors":"Zijin Qiao, Hongye Dong, Guibin Shen, Xiangning Xu, Wang Yao and Cheng Mu","doi":"10.1039/D4SE01434K","DOIUrl":"https://doi.org/10.1039/D4SE01434K","url":null,"abstract":"<p >Harmful reactions and lattice stress at the NiO<small><sub><em>x</em></sub></small>/perovskite interface are significant challenges that limit the efficiency of NiO<small><sub><em>x</em></sub></small>-based inverted perovskite solar cells. In this study, the surfactant 3-(<em>N</em>,<em>N</em>-dimethyldodecylammonio)propanesulfonate (SB12-3) was introduced between the NiO<small><sub><em>x</em></sub></small> hole transport layer and the perovskite. The sulfonic acid group in SB12-3 effectively passivated the surface defects of NiO<small><sub><em>x</em></sub></small>, enhancing carrier extraction capabilities. Additionally, the long and flexible alkyl chain in SB12-3 significantly alleviated the tensile stress at the NiO<small><sub><em>x</em></sub></small>/perovskite interface. By combining surface passivation and stress relief, a power conversion efficiency (PCE) of 18.92% was obtained. Unencapsulated devices stored in a N<small><sub>2</sub></small> atmosphere at 25 °C for 1500 h maintained 100% of the initial PCE and those kept in an air environment with a relative humidity of 30–50% retained over 80% of their initial PCE after more than 1000 h.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1371-1378"},"PeriodicalIF":5.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489342","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}
引用次数: 0
Li-doped 2D aza-fused covalent organic framework: a promising avenue for hydrogen storage† 锂掺杂的二维氮杂熔合共价有机框架:一种前景广阔的储氢途径†。
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-20 DOI: 10.1039/D4SE01808G
Preeti Beniwal and T. J. Dhilip Kumar
{"title":"Li-doped 2D aza-fused covalent organic framework: a promising avenue for hydrogen storage†","authors":"Preeti Beniwal and T. J. Dhilip Kumar","doi":"10.1039/D4SE01808G","DOIUrl":"https://doi.org/10.1039/D4SE01808G","url":null,"abstract":"<p >Designing an efficient high-capacity hydrogen storage material is a critical challenge for advancing clean energy storage. Through detailed density functional theory calculations and <em>ab initio</em> molecular dynamics simulations, we found that the recently synthesized two-dimensional (2D) aza-fused covalent organic framework (aza-COF) doped with Li exhibits considerable promise for hydrogen storage applications. Despite a H<small><sub>2</sub></small> storage capacity of 10.3 wt%, pristine aza-COF adsorbs H<small><sub>2</sub></small> molecules <em>via</em> weak van der Waals interactions, limiting its viability under ambient conditions. The strategy relies on increasing more active sites for H<small><sub>2</sub></small> adsorption, thereby improving the interactions between H<small><sub>2</sub></small> and positively charged Li atoms. Li-doped aza-COF adsorbs H<small><sub>2</sub></small> molecules with a combined effect of electrostatic and van der Waals interactions, resulting in enhanced H<small><sub>2</sub></small> adsorption energy, ranging from −0.22 to −0.33 eV. The H<small><sub>2</sub></small> storage capacity reaches 13.9 wt%, higher than that of the pristine aza-COF and the 5.5 wt% target of the U. S. Department of Energy. With appropriate structural stability, H<small><sub>2</sub></small> adsorption energy, desorption temperature, hydrogen occupation number and high H<small><sub>2</sub></small> storage ability, Li-doped 2D aza-COF exhibits great potential as a hydrogen storage material.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1207-1216"},"PeriodicalIF":5.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489326","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}
引用次数: 0
Low-temperature etch synthesis of Fe-doped Ni(OH)2 for enhanced bifunctional water splitting† 低温蚀刻合成掺铁 Ni(OH)2,用于增强双功能水分离†。
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-20 DOI: 10.1039/D4SE01712A
Yanmei Xin, Xiaoru Dou, Qiling Yan, Ruiting Zhang, Shuaishuai Li, Guoan Huang and Zhonghai Zhang
{"title":"Low-temperature etch synthesis of Fe-doped Ni(OH)2 for enhanced bifunctional water splitting†","authors":"Yanmei Xin, Xiaoru Dou, Qiling Yan, Ruiting Zhang, Shuaishuai Li, Guoan Huang and Zhonghai Zhang","doi":"10.1039/D4SE01712A","DOIUrl":"https://doi.org/10.1039/D4SE01712A","url":null,"abstract":"<p >The development of electrocatalyst preparation methods that are straightforward, efficient, and energy-saving is crucial for the large-scale production and application of hydrogen energy. This study introduces a low-temperature etching-assisted synthesis approach to fabricate iron-doped nickel hydroxide (Fe–Ni(OH)<small><sub>2</sub></small>) bifunctional electrocatalysts for overall water splitting. The catalysts synthesized using this low-temperature method tend to form a composite structure consisting of nanosheets and nanoflowers, along with a mixed phase of crystalline and amorphous materials. This unique combination significantly enhances electron transport and increases the number of active sites. Furthermore, iron doping promotes the formation of high-valent nickel species, resulting in the coexistence of NiFe bimetallic hydroxides (Ni(Fe)LDH) and NiFe oxyhydroxides (Ni(Fe)OOH) within the catalyst. This coexistence ensures exceptional performance in both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) under alkaline conditions. Notably, the overpotentials for the HER and OER at a current density of 10 mA cm<small><sup>−2</sup></small> in a 1.0 M KOH solution are as low as 92 mV and 232 mV, respectively. Moreover, the Fe–Ni(OH)<small><sub>2</sub></small>/NF catalyst demonstrates superior overall water splitting performance, achieving a cell voltage of just 1.59 V at a current density of 10 mA cm<small><sup>−2</sup></small>. This work not only explores the synthesis of nickel–iron-based electrocatalysts through low-temperature etching but also provides an in-depth discussion of the overall water splitting mechanism, offering insights for the design of highly efficient catalysts for overall water splitting.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1236-1246"},"PeriodicalIF":5.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489329","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}
引用次数: 0
Theoretical estimation to double the performance of perovskite solar cells using a graded absorber layer†
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-20 DOI: 10.1039/D4SE01271B
Monisha Nayak, Abu Jahid Akhtar and Sudip K. Saha
{"title":"Theoretical estimation to double the performance of perovskite solar cells using a graded absorber layer†","authors":"Monisha Nayak, Abu Jahid Akhtar and Sudip K. Saha","doi":"10.1039/D4SE01271B","DOIUrl":"https://doi.org/10.1039/D4SE01271B","url":null,"abstract":"<p >Metal halide perovskite solar cells (PSCs) have shown a remarkable increase in efficiency, with the latest record of 26.7% for a single bandgap absorber. According to the Shockley–Queisser limit, single-junction PSCs are predicted to achieve a maximum efficiency of ≈33%. However, open circuit voltage (<em>V</em><small><sub>OC</sub></small>) losses originating from non-radiative recombination at the absorber/charge transporting layer (CTL) interfaces due to band-level mismatches and defect states cause a lag in achieving the actual limit of PSCs. Composition-dependent bandgap tuning in halide perovskites offers a great advantage in tuning the optical properties of the absorber layer. In this article, we introduce a novel scheme for absorber band grading by altering the metallic or B-site composition of the FAPb<small><sub>1−<em>y</em></sub></small>Sn<small><sub><em>y</em></sub></small>I<small><sub>3</sub></small> perovskite absorber. By replacing the single absorber layer (FAPb<small><sub>0.5</sub></small>Sn<small><sub>0.5</sub></small>I<small><sub>3</sub></small>) in the device configuration ITO/PEDOT:PSS/FAPb<small><sub>0.5</sub></small>Sn<small><sub>0.5</sub></small>I<small><sub>3</sub></small>/PCBM/Ag using a graded bandgap absorber (FAPb<small><sub>1−<em>y</em></sub></small>Sn<small><sub><em>y</em></sub></small>I<small><sub>3</sub></small>) with <em>y</em> varying between 0 and 1, a full range grading, the efficiency limit of the device is extended by 95%. Besides, a more convenient partial grading scheme with <em>y</em> of a smaller range can yield satisfactory results. A systematic study of both these grading schemes and simulations reveals that such an architectural design strategy with precise execution could be the next step in overcoming the practical limits of conventional single absorber PSCs.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1305-1316"},"PeriodicalIF":5.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489337","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}
引用次数: 0
Substitution of magnesium towards stabilizing low-nickel layered oxides for high voltage and cost-effective sodium-ion batteries†
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-20 DOI: 10.1039/D4SE01730G
Yongliang Ma, Haihan Zhang, Liang Xie, Weibo Hua, Zhengxin Huang, Xiaohui Sun, Jintian Luo, Chengyong Shu, Kang Yang and Wei Tang
{"title":"Substitution of magnesium towards stabilizing low-nickel layered oxides for high voltage and cost-effective sodium-ion batteries†","authors":"Yongliang Ma, Haihan Zhang, Liang Xie, Weibo Hua, Zhengxin Huang, Xiaohui Sun, Jintian Luo, Chengyong Shu, Kang Yang and Wei Tang","doi":"10.1039/D4SE01730G","DOIUrl":"https://doi.org/10.1039/D4SE01730G","url":null,"abstract":"<p >The development and advancement of low-nickel layered oxides for cost-effective sodium-ion batteries are hindered by the lack of comprehensive studies on structural stability and the specific phase transition mechanisms during multiple irreversible phase transitions, especially under high-voltage conditions. Herein Mg substitution for Ni in O3–NaNi<small><sub>0.25</sub></small>Fe<small><sub>0.25</sub></small>Mn<small><sub>0.5</sub></small>O<small><sub>2</sub></small> (NNFM) is proposed to mitigate the structural degradation under high voltage and long-term cycling. Through <em>in situ</em> XRD analysis, the complete structural evolution of NNFM and NMNFM under high-voltage conditions was revealed. Most importantly, it is revealed that Mg substitution suppresses the complex phase transitions of low-nickel cathodes under high voltage conditions and mitigates the phenomenon of phase transition hysteresis. NMNFM exhibits a high reversible capacity of 153 mA h g<small><sup>−1</sup></small> at 0.1C, decent capacity retention after 100 cycles and good rate capability. Last but not least, the fabricated hard carbon//O3-NMNFM full cell delivers an initial discharge capacity of 144 mA h g<small><sup>−1</sup></small> at 0.1C within a voltage range of 2.0–4.1 V and a capacity retention of 87.8% after 100 cycles.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 4","pages":" 981-990"},"PeriodicalIF":5.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379670","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}
引用次数: 0
Electrode engineering considerations for high energy efficiency Li–CO2 batteries†
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-20 DOI: 10.1039/D4SE01582G
Jingzhao Wang, Xin Chen, Xiangming Cui, Mi Zhou, Jianan Wang, Wenbiao Liu, Hang Ma, José V. Anguita, S. Ravi P. Silva, Kai Yang and Wei Yan
{"title":"Electrode engineering considerations for high energy efficiency Li–CO2 batteries†","authors":"Jingzhao Wang, Xin Chen, Xiangming Cui, Mi Zhou, Jianan Wang, Wenbiao Liu, Hang Ma, José V. Anguita, S. Ravi P. Silva, Kai Yang and Wei Yan","doi":"10.1039/D4SE01582G","DOIUrl":"https://doi.org/10.1039/D4SE01582G","url":null,"abstract":"<p >Li–CO<small><sub>2</sub></small> batteries (LCBs) offer significant potential for high energy storage and efficient CO<small><sub>2</sub></small> utilization. However, their practical application is hindered by challenges such as low energy efficiency, poor rate performance, and limited cycle life. To address these issues, it is crucial to develop gas electrodes with a highly conductive, catalytic, and robust network to facilitate rapid and reversible CO<small><sub>2</sub></small> conversion. In this work, a comprehensive design for high-performance gas electrodes in LCBs is presented. The critical structure–property relationships of gas electrodes have been investigated with a focus on optimal substrate and catalytic site construction. The developed self-supporting electrodes, featuring ultrafine nanocatalyst decoration within a hierarchical porous and conductive structure, exhibited superior electrochemical performance, including ultrahigh areal capacity (over 10 mA h cm<small><sup>−2</sup></small>), excellent reversibility, and high energy efficiency (over 80%) under practical operating conditions. Furthermore, flexible Li–CO<small><sub>2</sub></small> pouch cells were successfully fabricated, showing stable operation and high tolerance to mechanical stress, indicating significant potential for large-scale applications in high-energy-density flexible power devices. The principles and guidelines established for gas electrode design are expected to advance the development of superior LCBs and other catalyst-based energy systems.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 4","pages":" 1084-1094"},"PeriodicalIF":5.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01582g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379723","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}
引用次数: 0
CeO2-enhanced surface reconstruction of Ni3S2 nanosheets for improved urea-assisted water splitting performance† CeO2 增强的 Ni3S2 纳米片表面重构可提高脲辅助水分离性能†。
IF 5 3区 材料科学
Sustainable Energy & Fuels Pub Date : 2025-01-17 DOI: 10.1039/D4SE01713G
Jiale Shang, Tong Wei, Xiaoqing Yan, Zheng Fang, Leilei Du, Jichao Shi, Fozia Sultana, Tongtong Li and Renhong Li
{"title":"CeO2-enhanced surface reconstruction of Ni3S2 nanosheets for improved urea-assisted water splitting performance†","authors":"Jiale Shang, Tong Wei, Xiaoqing Yan, Zheng Fang, Leilei Du, Jichao Shi, Fozia Sultana, Tongtong Li and Renhong Li","doi":"10.1039/D4SE01713G","DOIUrl":"https://doi.org/10.1039/D4SE01713G","url":null,"abstract":"<p >Urea-assisted water splitting represents a prospective approach for sustainable hydrogen (H<small><sub>2</sub></small>) production. However, the challenge of designing highly efficient, durable, and economically viable bifunctional electrocatalysts hampers the practical implementation of this technology. In this work, we design a Ni<small><sub>3</sub></small>S<small><sub>2</sub></small>–CeO<small><sub>2</sub></small> heterostructure catalyst on nickel foam, tailored to upgrade the efficiency and cost-effectiveness of urea-assisted electrolysis. The catalyst features a unique interconnected nanosheet architecture, which boosts its activity, obtaining 100 mA cm<small><sup>−2</sup></small> for the urea oxidation reaction (UOR) with an overpotential of just 146 mV, and only 56 mV at 10 mA cm<small><sup>−2</sup></small> for the hydrogen evolution reaction (HER). When employed at both electrodes in a urea electrolysis electrolyzer, the Ni<small><sub>3</sub></small>S<small><sub>2</sub></small>–CeO<small><sub>2</sub></small>/NF catalyst reaches a high current density of 500 mA cm<small><sup>−2</sup></small> at 1.734 V. Experimental results and DFT calculations demonstrate that the Ni<small><sub>3</sub></small>S<small><sub>2</sub></small>–CeO<small><sub>2</sub></small>/NF heterogeneous interface facilitates electron redistribution and increases electronic density at the Fermi level, thereby enhancing the conductivity. The incorporation of CeO<small><sub>2</sub></small> facilitates Ni<small><sub>3</sub></small>S<small><sub>2</sub></small> surface reconstruction, forming NiOOH active species with abundant oxygen vacancies (O<small><sub>V</sub></small>) that optimize urea adsorption and improve UOR kinetics. Additionally, CeO<small><sub>2</sub></small> reduces the hydrogen adsorption energy (Δ<em>G</em><small><sub>H*</sub></small>), accelerating the HER process. These synergistic effects allow the Ni<small><sub>3</sub></small>S<small><sub>2</sub></small>–CeO<small><sub>2</sub></small>/NF catalyst to achieve outstanding bifunctional activity in the UOR and HER, underscoring its potential for efficient urea-assisted electrolysis with low overpotentials at high current densities. This investigation provides guidance for creating effective bifunctional catalysts for sustainable hydrogen production.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 5","pages":" 1183-1195"},"PeriodicalIF":5.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489324","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}
引用次数: 0
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