Journal of Energy Chemistry最新文献_第2页

Local charge redistribution-induced OER mechanism switching in RuO2-based catalysts for efficient PEM electrolysis 基于ruo2的高效PEM电解催化剂中局部电荷再分配诱导的OER机制切换

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-20 DOI: 10.1016/j.jechem.2025.08.098

Xuyan Zhou , Zijie Yang , Yinnan Qian , Zhaoyan Luo , Lei Zhang , Qianling Zhang , Chuanxin He , Zhengtang Luo , Xiangzhong Ren

{"title":"Local charge redistribution-induced OER mechanism switching in RuO2-based catalysts for efficient PEM electrolysis","authors":"Xuyan Zhou , Zijie Yang , Yinnan Qian , Zhaoyan Luo , Lei Zhang , Qianling Zhang , Chuanxin He , Zhengtang Luo , Xiangzhong Ren","doi":"10.1016/j.jechem.2025.08.098","DOIUrl":"10.1016/j.jechem.2025.08.098","url":null,"abstract":"<div><div>Oxygen evolution reaction (OER) is widely recognized as a bottleneck of water electrolysis. To determine the underlying reaction mechanisms, particularly the relative contribution of the adsorbate evolution mechanism (AEM) and lattice-oxygen participation mechanism (LOM), we conduct a comprehensive investigation combining Density Functional Theory (DFT) calculations and experimental validation. Our theoretical analysis of doped RuO<sub>2</sub> catalysts reveals that heteroatom doping (Ni, Cu, and Zn) induces significant local charge transfer, leading to the increased charge state of Ru and the downshifted <em>d</em>-band center. This, in turn, enables the mechanism switching from the conventional AEM to the more efficient LOM, and finally improves OER activity. We also establish a simple yet powerful descriptor, <em>N</em><sub>e</sub> of Ru (representing charge density of Ru sites), which enables accurate prediction of both catalytic activity and stability. Guided by these theoretical predictions, we successfully synthesize a Ni-doped RuO<sub>2</sub> catalyst, which exhibits excellent OER activity and stability in acidic media, achieving an overpotential of just 156 mV and maintaining stability for 4000 h at 10 mA cm<sup>−2</sup>, significantly surpassing the performance of the commercial RuO<sub>2</sub>. These findings not only provide fundamental insights into the mechanism-switching behavior in OER catalysis but also offer a practical strategy for designing high-performance, stable electrocatalysts for acidic water electrolysis.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 967-976"},"PeriodicalIF":14.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intermediate phase regulation in Ni-rich cathodes via soft oxidation-lithiation for enhanced electrochemical performance 通过软氧化-锂化技术调节富镍阴极的中间相以提高电化学性能

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-19 DOI: 10.1016/j.jechem.2025.09.011

Shijie Jiang , Jiachao Yang , Yunjiao Li , Zhouliang Tan , Shuaipeng Hao , Jianpeng Peng , Zhenjiang He , Shuaiwei Liu , Jiawei Pan , Weijia Tang , Changlong Lei , Guangsheng Huo , Yi Cheng

{"title":"Intermediate phase regulation in Ni-rich cathodes via soft oxidation-lithiation for enhanced electrochemical performance","authors":"Shijie Jiang , Jiachao Yang , Yunjiao Li , Zhouliang Tan , Shuaipeng Hao , Jianpeng Peng , Zhenjiang He , Shuaiwei Liu , Jiawei Pan , Weijia Tang , Changlong Lei , Guangsheng Huo , Yi Cheng","doi":"10.1016/j.jechem.2025.09.011","DOIUrl":"10.1016/j.jechem.2025.09.011","url":null,"abstract":"<div><div>Cation disordering is a common issue in Ni-rich cathodes that significantly degrades cycle life and compromises safety. The cubic rock-salt phase formation and the slow oxidation kinetics of Ni<sup>2+</sup> during solid-state sintering are widely recognized as the principal causes of these structural defects. To solve this issue, a topotactic soft-chemical precursor engineering strategy is proposed for use in aqueous solution. By utilizing the layered structure of the precursor, this method allows for selective proton extraction and efficient Ni<sup>2+</sup> oxidation, along with rapid Li<sup>+</sup> intercalation to form a layered lithiated intermediate. This intermediate crystallizes without further phase transitions during subsequent heat treatment, preventing structural defects caused by complex phase evolution and slow ion diffusion. The resulting cathode exhibits a long-range ordered layered structure and a uniform phase distribution, enabling efficient Li<sup>+</sup> insertion and extraction. Electrochemical tests reveal a high discharge capacity of 229.6 mAh g<sup>−1</sup> and an initial coulombic efficiency of 95.77 % at 0.1 C, greatly exceeding the performance of a conventionally synthesized cathode (210.3 mAh g<sup>−1</sup>, 88.93 %). Improved Li<sup>+</sup> transport kinetics reduces phase-transition hysteresis and alleviates stress concentration, resulting in better cycling stability with a capacity retention of 85.3 % after 300 cycles, compared to 61.5 % for the conventional sample. This work presents a scalable and effective synthesis route for Ni-rich cathodes with reduced structural disorder and extended lifespan, providing valuable insights into how the regulation of intermediate phases influences electrochemical performance in high-performance Ni-rich cathodes.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 869-879"},"PeriodicalIF":14.9,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting mass and charge transport of anode catalyst layers in proton exchange membrane water electrolysis 质子交换膜电解中阳极催化剂层的质量和电荷输运

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-19 DOI: 10.1016/j.jechem.2025.09.012

Sihan Mao , Yun Liu , Bingqian Pang , Yuzhang Cheng , Wenjuan Shi , Tianjiao Wang , Peng Rao , Xiaodong Shi , Jing Li , Hao Wang , Xinlong Tian , Zhenye Kang

{"title":"Boosting mass and charge transport of anode catalyst layers in proton exchange membrane water electrolysis","authors":"Sihan Mao , Yun Liu , Bingqian Pang , Yuzhang Cheng , Wenjuan Shi , Tianjiao Wang , Peng Rao , Xiaodong Shi , Jing Li , Hao Wang , Xinlong Tian , Zhenye Kang","doi":"10.1016/j.jechem.2025.09.012","DOIUrl":"10.1016/j.jechem.2025.09.012","url":null,"abstract":"<div><div>Membrane electrode assemblies (MEAs) are pivotal to advancing proton exchange membrane water electrolysis (PEMWE), yet conventional designs suffer from limited triple-phase boundaries (TPBs), inefficient mass/charge transport, and insufficient durability. This study introduces a three-dimensional ordered pattern-array (3D OPA) architecture fabricated via a scalable laser-machined mask and hot-pressing strategy. The 3D OPA MEA achieves a current density of 3.73 A cm<sup>−2</sup> at 2 V, demonstrating a 50 % performance improvement over the conventional MEA (2.48 A cm<sup>−2</sup>), alongside a degradation rate of 26.6 µV h<sup>−1</sup> in a highly dynamic accelerated stress test (AST). Additionally, numerical simulations corroborate that the OPA architecture optimizes localized oxygen diffusion and liquid water replenishment, enhancing reaction kinetics. The 3D OPA architecture enhances TPBs and establishes optimized gas-liquid transport pathways, significantly improving catalyst utilization while minimizing mass transfer overpotential and bubble-induced losses. Furthermore, its interlocking design reinforces mechanical interactions, reducing ohmic resistance and ensuring sustained mechanical integrity and electrochemical durability. This work provides a simple, cost-effective, and scalable approach for patterned MEAs, addressing critical barriers to PEMWE commercialization through rational TPB engineering and transport pathway optimization.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"113 ","pages":"Pages 29-36"},"PeriodicalIF":14.9,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanistic insights into methanol conversion and methanol-mediated tandem catalysis toward hydrocarbons 甲醇转化和甲醇介导的串联催化对碳氢化合物的机理研究

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-17 DOI: 10.1016/j.jechem.2025.09.007

Jiahui He , Guo Tian , Duohua Liao , Zonglong Li , Yu Cui , Fei Wei , Chunyang Zeng , Chenxi Zhang

{"title":"Mechanistic insights into methanol conversion and methanol-mediated tandem catalysis toward hydrocarbons","authors":"Jiahui He , Guo Tian , Duohua Liao , Zonglong Li , Yu Cui , Fei Wei , Chunyang Zeng , Chenxi Zhang","doi":"10.1016/j.jechem.2025.09.007","DOIUrl":"10.1016/j.jechem.2025.09.007","url":null,"abstract":"<div><div>Methanol, a crucial C1 intermediate, bridges traditional fossil-based chemical processes with emerging sustainable catalytic technologies by serving as both a versatile hydrogenation product from CO/CO<sub>2</sub> and an active intermediate for hydrocarbon synthesis. Despite significant progress in methanol-to-hydrocarbon (MTH) conversion, a comprehensive understanding of reaction mechanisms remains essential to enhance catalyst design and industrial applicability. This review critically synthesizes recent advances in mechanistic insights related to methanol conversion and methanol-mediated catalytic processes. Firstly, we systematically outline key reaction pathways involved in initial carbon–carbon (C–C) bond formation through direct and indirect mechanisms, emphasizing significant breakthroughs from spectroscopic analyses and theoretical calculations. Subsequently, we highlight the autocatalytic characteristics and dual-cycle mechanisms underlying MTH processes, critically evaluating the roles of zeolite structures, pore sizes, topology, and acidity in governing product selectivity and catalyst stability. Additionally, we discuss cutting-edge developments in tandem catalytic systems employing methanol as a pivotal intermediate for CO<em><sub>x</sub></em> hydrogenation, emphasizing the transferable mechanistic principles and catalytic insights. Finally, we identify future research directions, including elucidating precise hydrocarbon pool (HCP) intermediates, optimizing zeolite structures through computational-guided design, and developing robust catalytic systems leveraging advanced characterization methods and artificial intelligence. By integrating multidisciplinary approaches from catalytic science, materials engineering, and reaction engineering, this review provides actionable guidance towards rational design and optimization of advanced catalytic systems for efficient methanol conversion processes.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 778-803"},"PeriodicalIF":14.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting ammonium-ion diffusion and cycling stability in PBAs via hydrogen bonding with interstitial water 通过与间隙水的氢键增强氨离子在多环芳烃中的扩散和循环稳定性

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-17 DOI: 10.1016/j.jechem.2025.09.008

Zhuofan Chen , Jing Wen , Weifeng Huang , Da Wang , Chaoqun Shang , Min Yan , Pu Hu

{"title":"Boosting ammonium-ion diffusion and cycling stability in PBAs via hydrogen bonding with interstitial water","authors":"Zhuofan Chen , Jing Wen , Weifeng Huang , Da Wang , Chaoqun Shang , Min Yan , Pu Hu","doi":"10.1016/j.jechem.2025.09.008","DOIUrl":"10.1016/j.jechem.2025.09.008","url":null,"abstract":"<div><div>Prussian blue analogs (PBAs) have emerged as environmentally friendly and structurally tunable cathode materials for aqueous ammonium-ion batteries (AIBs). However, the fundamental role of crystalline H<sub>2</sub>O in regulating ammonium-ion storage and transport remains poorly understood. In this study, we present a comprehensive comparison between hydrated NH<sub>4</sub>NiHCF-H<sub>2</sub>O and its anhydrous counterpart NH<sub>4</sub>NiHCF, revealing the critical contribution of interstitial water to electrochemical performance. Structural and spectroscopic analyses confirm that interstitial water forms robust hydrogen bonds with NH<sub>4</sub><sup>+</sup> ions, stabilizing the PBA framework and mitigating structural degradation during cycling. Electrochemical measurements show that NH<sub>4</sub>NiHCF-H<sub>2</sub>O delivers a significantly higher specific capacity of 61 mA h g<sup>−1</sup> at 0.2 C and markedly improved rate performance compared to NH<sub>4</sub>NiHCF (48 mA h g<sup>−1</sup> at 0.2 C). Kinetic analysis reveals that interstitial water enhances NH<sub>4</sub><sup>+</sup> diffusion, as evidenced by higher diffusion coefficients. Furthermore, density functional theory (DFT) calculations demonstrate that crystal water acts as a hydrogen bond acceptor, preferentially interacting with NH<sub>4</sub><sup>+</sup> and reducing the migration energy barrier, thereby facilitating fast ion transport. This work provides fundamental insights into the role of crystal water in PBAs and offers a rational design strategy for improving the kinetics, structural stability of PBAs cathodes for AIBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 861-868"},"PeriodicalIF":14.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrogen functionalization of natural hydroxyl cellulose induces a LiF-rich interphase for lithium metal batteries 天然羟基纤维素的氮功能化诱导了锂金属电池的富liff间期

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-17 DOI: 10.1016/j.jechem.2025.08.095

Jie Deng , Ningxin Chen , Sida Xie , Shan Liu , Zichan Yuan , Shuaiming He , Shi Chen , Zhaohui Wang

{"title":"Nitrogen functionalization of natural hydroxyl cellulose induces a LiF-rich interphase for lithium metal batteries","authors":"Jie Deng , Ningxin Chen , Sida Xie , Shan Liu , Zichan Yuan , Shuaiming He , Shi Chen , Zhaohui Wang","doi":"10.1016/j.jechem.2025.08.095","DOIUrl":"10.1016/j.jechem.2025.08.095","url":null,"abstract":"<div><div>Cellulose, the most abundant and renewable biopolymer, offers a sustainable and cost-effective solution for regulating lithium electrodeposition toward safer lithium metal batteries, thanks to its high nanofibrous structure and intrinsic lithiophilic property. In this work, we introduce interface-engineered cellulose-based separators by converting intrinsic hydroxyl groups on cellulose nanofibers (CNFs) to nitrogen functionalities through a trace conducting polymer coating. Both experimental and theoretical results reveal that the nitrogen moieties disrupt the compact hydrogen bond network within hydroxyl cellulose, enabling multiple nitrogen-lithium interactions that enhance lithium ion transport. In addition to an extraordinary Li<sup>+</sup> transference number of 0.86 and a high ionic conductivity of 1.1 mS cm<sup>−1</sup>, the nitrogen-functionalized CNF contributes to a uniform electric field and Li<sup>+</sup> concentration distribution across the lithium metal surface. This facilitates the formation of a LiF-rich solid electrolyte interface and suppresses Li dendrite growth. Consequently, Li||Li cells demonstrate stable plating/stripping cycles for approximately 3000 h at a current density of 1 mA cm<sup>−2</sup> with a fixed capacity of 1 mAh cm<sup>−2</sup>, while maintaining a low overpotential of 15 mV. Our work provides valuable insights into the surface functionalization of natural biomass for advancing sustainable energy storage technologies.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"113 ","pages":"Pages 37-47"},"PeriodicalIF":14.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strengthening the susceptible interphase of layered oxide cathodes via eco-friendly aqueous binders 通过环保型水性粘合剂加强层状氧化物阴极的敏感界面

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-17 DOI: 10.1016/j.jechem.2025.08.096

Chuhan Yuan , Tao Zhang , Wujiu Zhang , Zhigao Chen , Zixuan Liang , Xin Zhang , Ruigeng Du , Xing Wang , Ting Jin , Chao Shen , Keyu Xie

{"title":"Strengthening the susceptible interphase of layered oxide cathodes via eco-friendly aqueous binders","authors":"Chuhan Yuan , Tao Zhang , Wujiu Zhang , Zhigao Chen , Zixuan Liang , Xin Zhang , Ruigeng Du , Xing Wang , Ting Jin , Chao Shen , Keyu Xie","doi":"10.1016/j.jechem.2025.08.096","DOIUrl":"10.1016/j.jechem.2025.08.096","url":null,"abstract":"<div><div>Layered oxides present compelling potential as cathode materials for sodium-ion batteries (SIBs). However, challenges including interfacial instability and sluggish reaction kinetics critically limit their rate capability and cycling performance. Herein, we introduce the water-soluble sodium polyacrylate (NaPAA) binder as a promising approach to mitigating these issues in P2-type layered oxides. The NaPAA binder facilitates the formation of a uniform Na<sup>+</sup> conductive interfacial film, which protects the cathode against electrolyte-induced corrosion and effectively inhibits the dissolution of transition metals in P2-Na<sub>0.85</sub>Li<sub>0.12</sub>Ni<sub>0.22</sub>Mn<sub>0.66</sub>O<sub>2</sub> (NLNMO). Furthermore, we elucidate the mechanism by which the NaPAA binder dynamically regulates the coordination of free anions at the electrode–electrolyte interface. This regulation reduces solvent decomposition and promotes the formation of a stable, ionically conductive layer. Consequently, the P2-NLNMO@NaPAA integrated electrode exhibits enhanced electrochemical performance, achieving an 89.2 % capacity retention after 200 cycles at 0.2 C and delivering an initial capacity of 102.9 mA h g<sup>−1</sup> even at 0 °C. This study advances the fundamental understanding of binder-mediated interface engineering and demonstrates a scalable and eco-friendly manufacturing pathway for high-performance SIBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"113 ","pages":"Pages 12-21"},"PeriodicalIF":14.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-timescale crystallization engineering enabling direct α-FAPbI3 formation for high-efficiency antisolvent-free perovskite solar cells 双时间尺度结晶工程使α-FAPbI3直接形成高效无溶剂钙钛矿太阳能电池

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-17 DOI: 10.1016/j.jechem.2025.09.010

Zhengyan He , Zhiqiang Zhang , Yongjia Li , Qilin Wei , Feng Liu , Mingwang Chang , Dan Huang , Shufang Zhang , Liang Wang , Qian Liu , William W. Yu

{"title":"Dual-timescale crystallization engineering enabling direct α-FAPbI3 formation for high-efficiency antisolvent-free perovskite solar cells","authors":"Zhengyan He , Zhiqiang Zhang , Yongjia Li , Qilin Wei , Feng Liu , Mingwang Chang , Dan Huang , Shufang Zhang , Liang Wang , Qian Liu , William W. Yu","doi":"10.1016/j.jechem.2025.09.010","DOIUrl":"10.1016/j.jechem.2025.09.010","url":null,"abstract":"<div><div>FAPbI<sub>3</sub> has been extensively employed in high-performance perovskite solar cells (PSCs) owing to its optimal bandgap and outstanding optoelectronic properties. Nevertheless, it readily undergoes the formation of a photo-inactive δ-phase during crystallization, and achieving high-quality α-phase films becomes even more challenging in antisolvent-free fabrication processes. This study introduces a crystallization control strategy based on 2-dimethylaminopyridine (2-DMAP) ligand engineering to establish a “fast nucleation-slow growth” dual-time-domain crystallization mechanism. 2-DMAP facilitates the formation of a functional intermediate phase (2-DMAP·PbI<sub>2</sub>·DMSO) that enables a direct transformation to the α-FAPbI<sub>3</sub> phase and effectively suppresses the δ-phase pathway. Theoretical calculations and systematic experimental characterizations demonstrate that 2-DMAP exhibits stronger binding affinity and a greater charge polarization effect than dimethylsulfoxide (DMSO). This promotes the formation of high-density nuclei during spin coating and delays excessive grain growth during annealing, leading to perovskite films with improved crystallinity, fewer defects, and longer carrier lifetimes. As a result, an antisolvent-free PSC device was successfully fabricated, achieving a power conversion efficiency (PCE) of 25.10 %, one of the highest reported for antisolvent-free spin-coating systems. Under ISOS-L-1 standard conditions, the device retained 84.78 % of its initial efficiency after 1500 h of continuous illumination, demonstrating excellent operational stability. Moreover, it exhibited remarkable long-term stability under harsh humid and thermal conditions. This work offers a valuable strategy for the large-scale fabrication of high-performance and antisolvent-free PSCs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 891-901"},"PeriodicalIF":14.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On-site electrocatalytic synthesis of hydrogen peroxide in potassium fertilizer solutions 钾肥溶液中过氧化氢的现场电催化合成

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-16 DOI: 10.1016/j.jechem.2025.08.087

Kaijie Wu , Xinxin Li , Sheng Chen , Qi Huang , Xue-Quan Zhou , Jinhui Liu , Cheng Tang

{"title":"On-site electrocatalytic synthesis of hydrogen peroxide in potassium fertilizer solutions","authors":"Kaijie Wu , Xinxin Li , Sheng Chen , Qi Huang , Xue-Quan Zhou , Jinhui Liu , Cheng Tang","doi":"10.1016/j.jechem.2025.08.087","DOIUrl":"10.1016/j.jechem.2025.08.087","url":null,"abstract":"<div><div>The two-electron electrochemical oxygen reduction reaction (ORR) affords an appealing alternative for on-site production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), which can fulfill the demands of various applications even at low concentrations. Under neutral or near-neutral conditions, the electrolyte environment capable of electrochemically synthesizing H<sub>2</sub>O<sub>2</sub> exhibits diversity and holds vast potential for practical applications; however, the electrocatalytic performance is limited without desirable electrode materials. In this contribution, methoxylated nickel hydroxides were proposed for high-performance on-site H<sub>2</sub>O<sub>2</sub> electrosynthesis in different potassium fertilizer solutions. The methoxylation compared to pristine Ni(OH)<sub>2</sub> was demonstrated to optimize the electronic structure with favorable adsorption of reaction intermediates, obviously enhancing the activity and selectivity. In 0.10 M K<sub>2</sub>SO<sub>4</sub> solution, H<sub>2</sub>O<sub>2</sub> production ranged from 28.1 to 153.6 mg h<sup>−1</sup> cm<sup>−2</sup> at current densities of −50 to −250 mA cm<sup>−2</sup>, accompanied by Faradaic efficiency values exceeding 88.0 %. An integrated system was devised by combining fertilization, disinfection, and irrigation through the coupling of two-electron ORR with agricultural irrigation, utilizing nutrient solutions as the electrolyte for on-site H<sub>2</sub>O<sub>2</sub> electrosynthesis. These findings afford a promising avenue for the practical application of 2e<sup>−</sup> ORR in neutral environments.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"113 ","pages":"Pages 22-28"},"PeriodicalIF":14.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MELODI: An explainable machine learning method for mechanistic disentanglement of battery calendar aging MELODI：一种可解释的机器学习方法，用于机械解决电池日历老化问题

IF 14.9 1区化学

Journal of Energy Chemistry Pub Date : 2025-09-16 DOI: 10.1016/j.jechem.2025.09.006

Wenkai Ye , Xiaoru Chen , Xu Hao , Yilin Xie , Fuda Gong , Liangxi He , Xuebing Han , Hewu Wang , Minggao Ouyang

{"title":"MELODI: An explainable machine learning method for mechanistic disentanglement of battery calendar aging","authors":"Wenkai Ye , Xiaoru Chen , Xu Hao , Yilin Xie , Fuda Gong , Liangxi He , Xuebing Han , Hewu Wang , Minggao Ouyang","doi":"10.1016/j.jechem.2025.09.006","DOIUrl":"10.1016/j.jechem.2025.09.006","url":null,"abstract":"<div><div>Lithium-ion batteries (LIBs) are widely deployed, from grid-scale storage to electric vehicles. LIBs remain stationary most of their service life, where calendar aging degrades capacity. Understanding the mechanisms of LIB calendar aging is crucial for extending battery lifespan. However, LIB calendar aging is influenced by multiple factors, including battery material, its state, and storage environment. Calendar aging experiments are also time-consuming, costly, and lack standardized testing conditions. This study employs a data-driven approach to establish a cross-scale database linking materials, side-reaction mechanisms, and calendar aging of LIBs. MELODI (Mechanism-informed, Explainable, Learning-based Optimization for Degradation Identification) is proposed to identify calendar aging mechanisms and quantify the effects of multi-scale factors. Results reveal that cathode material loss drives up to 91.42 % of calendar aging degradation in high-nickel (Ni) batteries, while solid electrolyte interphase growth dominates in lithium iron phosphate (LFP) and low-Ni batteries, contributing up to 82.43 % of degradation in LFP batteries and 99.10 % of decay in low-Ni batteries, respectively. This study systematically quantifies calendar aging in commercial LIBs under varying materials, states of charge, and temperatures. These findings offer quantitative guidance for experimental design or battery use, and implications for emerging applications like aerial robotics, vehicle-to-grid, and embodied intelligence systems.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"112 ","pages":"Pages 804-813"},"PeriodicalIF":14.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0