Journal of Energy Chemistry最新文献

{"title":"Enhancing bromine redox conversion via electrochemical self-induced catalyst gel encapsulation strategy toward high energy efficiency bromine-based flow battery","authors":"Sinan Zheng ,&nbsp;Yang Wang ,&nbsp;Bin Luo ,&nbsp;Leilei Sun ,&nbsp;Guosheng Duan ,&nbsp;Zhean Bao ,&nbsp;Li Gong ,&nbsp;Jingyun Huang ,&nbsp;Zhizhen Ye","doi":"10.1016/j.jechem.2025.07.030","DOIUrl":"10.1016/j.jechem.2025.07.030","url":null,"abstract":"<div><div>Benefiting from features such as high-voltage platforms, superior energy density, and cost-effectiveness, Zinc-bromine flow batteries (ZBFBs) demonstrate significant potential for large-scale energy storage applications. However, their practical implementation faces critical challenges: sluggish Br₂/Br⁻ redox reactions and severe shuttle effects, which lead to diminished energy efficiency and self-discharge. Here, we develop an innovative electrochemical self-induced catalyst gel encapsulation strategy. Under electrochemical driving, the poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS, abbreviated as PES) catalyst spontaneously undergoes gelation and coating on carbon fibers, thereby forming a PES@C composite cathode with enhanced bromine conversion reversibility. This innovative strategy effectively addresses three critical challenges in existing ZBFBs: shuttle effect, low bromine utilization, and poor energy efficiency. PES@C with sulfur sites and C–O-C group enable efficient bromine/poly-bromide anchoring through strong polar interactions, effectively suppressing shuttling effects. Furthermore, the abundant active sites exhibit exceptional catalytic activity towards Br₂/Br⁻ redox reactions. This synergistic adsorption-catalysis mechanism significantly enhances the electrochemical performance of ZBFBs. The ZBFBs with PES@C achieve stable operation under ultrahigh current density (200 mA cm⁻²) and high areal capacity (40 mA h cm⁻²), delivering outstanding voltage efficiency (84.91 %) and energy efficiency (81.78 %). Notably, the proposed strategy demonstrates universal applicability for performance enhancement in various bromine-based battery systems, providing an efficient pathway to improve energy efficiency and cycling durability in bromine-based flow batteries.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 842-853"},"PeriodicalIF":14.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749887","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}

{"title":"Electron-enriched iridium active centers via spontaneous core-shell architecture engineering for efficient and durable water oxidation catalysis","authors":"Hongxiang Wu ,&nbsp;Xin Guan ,&nbsp;Zhaoping Shi ,&nbsp;Yibo Wang ,&nbsp;Ming Yang ,&nbsp;Zi’ang Wang ,&nbsp;Xiaohui Liu ,&nbsp;Kai Li ,&nbsp;Tao Gan ,&nbsp;Jiong Li ,&nbsp;Minhua Shao ,&nbsp;Meiling Xiao ,&nbsp;Wei Xing ,&nbsp;Changpeng Liu","doi":"10.1016/j.jechem.2025.07.025","DOIUrl":"10.1016/j.jechem.2025.07.025","url":null,"abstract":"<div><div>The development of robust and active oxygen evolution reaction (OER) electrocatalysts is urgently desirable for the widespread implementation of proton exchange membrane water electrolyzers (PEMWE), yet remains a critical challenge. We propose a catalyst named U-IrRuO<em>_x</em>@IrRu (where “U” denotes “ultrathin”), which features a spontaneously formed amorphous oxide shell that synergistically optimizes the electronic structure and corrosion resistance. Combined experimental and theoretical studies reveal that the oxyphilic Ru-induced electronic modulation weakens Ir–O binding strength, thereby accelerating the rate-determining step of *OOH formation. In addition, the metallic alloy core functions as an electron reservoir, suppressing excessive oxidation of active sites while ensuring high conductivity. Due to these attributes, the U-IrRuO<em>_x</em>@IrRu demonstrates a low overpotential of 230 mV at 10 mA cm⁻², outperforming commercial IrO₂ (CM) by 65 mV. When integrated into a PEMWE with an ultra-low Ir loading of 0.25 mg_Ir cm⁻², it delivers an industrial current density of 2 A cm⁻² at 1.74 V and 3 A cm⁻² at 1.836 V, surpassing the U.S. Department of Energy (DOE) 2025 target. More impressively, the U-IrRuO<em>_x</em>@IrRu-based electrolyzer can stably operate for over 550 h, with an extremely low decay rate of 7.52 μV h⁻¹, corresponding to a predicted lifespan of 23,000 h with 90 % performance retention.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 751-759"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739018","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}

{"title":"Substituent engineering of edge-modified cobalt polyphthalocyanine for optimizing near-infrared photocatalytic imines synthesis: dual regulation of surface catalytic reactions","authors":"Hao Chen,&nbsp;Hao Jiang,&nbsp;Mei Yan,&nbsp;Chongshen Guo","doi":"10.1016/j.jechem.2025.07.023","DOIUrl":"10.1016/j.jechem.2025.07.023","url":null,"abstract":"<div><div>The photocatalytic oxidative coupling of amines has emerged as a promising alternative for imine production. Nevertheless, enhancing the photocatalytic activity of conjugated organic polymers (COP) still faces significant challenges, particularly in near-infrared (NIR) driven photocatalytic activity, charge separation efficiency, adsorption, and activation of amine molecules. Here, we tackled these challenges by modulating the internal electronic states of cobalt phthalocyanine polymers (C-CoPPc-<em>x</em>) through edge-substituted modification with various electron-donating or electron-withdrawing groups. The built-in electric field (B-IEF) and Lewis acidity of metal sites are significantly influenced by such an edge-substituted modification, which further results in an adjustable separation efficiency of photogenerated charges and the adsorption/activation behavior of benzylamine. By optimizing the surface catalytic reactions of COP, the methoxy-edge-modified polymer demonstrated a superior performance with an amine yield of 4.32 mmol g⁻¹ under NIR irradiation, surpassing the performance of many reported photocatalysts even under ultraviolet (UV) or visible light. This work underscores the substantial impact of minor substituent modifications on both the separation of photogenerated charge carriers and the adsorption/activation of amine molecules in the photocatalytic process, and provides valuable insights for enhancing the photocatalytic performance of COP in diverse applications.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 854-863"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749882","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}

{"title":"Towards practical data-driven battery state of health estimation: Advancements and insights targeting real-world data","authors":"Hongxu Chen ,&nbsp;Ying Chen ,&nbsp;Changzheng Sun ,&nbsp;Liping Huo ,&nbsp;Wenjun Zhang ,&nbsp;Ping Shen ,&nbsp;Lvwei Huang ,&nbsp;Weiling Luan ,&nbsp;Haofeng Chen","doi":"10.1016/j.jechem.2025.07.022","DOIUrl":"10.1016/j.jechem.2025.07.022","url":null,"abstract":"<div><div>Accurate state of health (SOH) estimation is a cornerstone for ensuring the safety, performance and longevity of lithium-ion batteries, especially in electric vehicle (EV) applications. While numerous studies have demonstrated the significant advantages of data-driven methods in SOH estimation, most rely on laboratory-standardized test data. This raises concerns about the generalization and robustness of the models under real-world operating conditions, where batteries undergo irregular driving patterns, incomplete charging cycles, and unpredictable environments. Notably, real-world EV data reflects the coupling between battery aging characteristics and actual operating conditions, providing an unprecedented perspective for developing SOH estimation models. This review provides a comprehensive and systematic overview of data-driven SOH estimation using real-world data, a topic that has received increasing attention but lacks a consolidated research framework. The paper begins by reviewing the established SOH estimation methodologies and points out the specific challenges arising from the transition to real-world data. It then probes practical issues across the pipeline: data pre-processing for anomalies, solutions for the lack of labels, feature extraction from complex operating data, machine learning model construction, and performance evaluation across various system deployments. Key insights are presented on how to handle noisy, unlabeled, and heterogeneous data using robust modeling strategies. Moreover, a valuable extension focusing on applying the advancements to battery reuse and recycling is discussed, with the goal of developing a whole lifecycle health diagnosis framework. The paper concludes with promising prospects, encompassing open-source standardized dataset establishment, weakly supervised learning, physics-reinforced modeling, real-world deployment, and advanced sensing technology, emphasizing that real-world data makes the transition of data-driven methods from theoretical validation to industrial deployment promising. This paper aims to assist researchers and practitioners in navigating the complexities of real-world SOH estimation, accelerating the collaborative innovation and industrial adoption in battery health management.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 657-680"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721828","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}

{"title":"Tuning interfacial electronic coupling at Ni–Zn dual-atom sites for efficient CO2 electroreduction","authors":"Hongyang Zhao ,&nbsp;Yuchen Zhan ,&nbsp;Wei Ma ,&nbsp;Junfeng Li ,&nbsp;Sihan Fan ,&nbsp;Yue Li ,&nbsp;Jinliang Li ,&nbsp;Xinjuan Liu ,&nbsp;Likun Pan","doi":"10.1016/j.jechem.2025.07.027","DOIUrl":"10.1016/j.jechem.2025.07.027","url":null,"abstract":"<div><div>Rational design of catalytic interfaces at the atomic level is crucial for enhancing electrocatalytic CO₂ reduction. In this study, a Zeolite imidazolate frameworks-8 derived catalyst is developed, featuring atomically dispersed Ni–Zn dual-atom sites (NiZnN₆) coexisting with Ni₃ZnC_0.7 nanoparticles on nitrogen-doped carbon nanotubes. Strong interaction between the NiZnN₆ moieties and Ni₃ZnC_0.7 nanoparticle induces charge redistribution, enhancing the electron-donating ability of Ni active sites. Simultaneously, the dual-atom configuration creates an asymmetric electronic environment, where interfacial electronic coupling facilitates partial electron transfer from Zn to Ni, leading to electron enrichment at the Ni center. Consequently, Ni sites preferentially donate electrons to active CO₂ molecules, lowering the *COOH formation energy, while Zn sites promote *CO desorption, thus achieving high CO selectivity (99.6 %@−0.7 V vs. Reversible Hydrogen Electrode (RHE)). The in-depth investigation in this work provides guidance for establishing the relationship between structure and electrocatalytic activity, holding significant implications for fundamental research on the CO₂ reduction mechanism.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 778-787"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739020","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}

{"title":"Stereochemical regulation of the hydrogen-bonding continuums in aqueous zinc electrolytes","authors":"Tingting Ruan ,&nbsp;Jie Xu ,&nbsp;Xuanyu Zhou ,&nbsp;Zhenhua Chen ,&nbsp;Jianping Zhou ,&nbsp;Shengli Lu ,&nbsp;Ruhong Li","doi":"10.1016/j.jechem.2025.07.026","DOIUrl":"10.1016/j.jechem.2025.07.026","url":null,"abstract":"<div><div>The preferential proton reduction over zinc-ion deposition in aqueous batteries arises from dual yet conflicting roles of water as charge carrier and parasitic reactant, posing persistent interfacial challenges. Although cosolvent engineering has shown promise in mitigating water activity through hydrogen-bond network modulation, prevailing strategies remain limited by their narrow focus on electronic and functional group properties, neglecting the stereochemical influence on molecular assembly. In this work, we uncover how molecular chirality dictates the hierarchical organization of hydrogen-bonding networks between cosolvents and water, which is a critical but previously unrecognized determinant of interfacial stability. By interrogating enantiomeric pairs (L-/D-carnitine), we demonstrate that chiral constraints steer the spatial arrangement of hydration structures through stereoselective hydrogen-bonding geometries. Combined spectroscopic and molecular dynamics analyses reveal that L-carnitine (L-CN) forms a three-dimensional hydrogen-bonded matrix with water, exhibiting superior directional connectivity relative to its D-isomer. This stereo-dependent architecture simultaneously reinforces Zn²⁺ solvation shells via bridging H-bond interactions and generates a self-adaptive interfacial structure that kinetically isolates water from the zinc anode surface. This stereochemical optimization enables Zn||Zn symmetric cells with unprecedented cycling stability exceeding 2000 h at 0.5 mA cm⁻²/0.5 mAh cm⁻². Corresponding Zn||Cu asymmetric cells maintain a high average Coulombic efficiency of 99.7% over 500 cycles at 3.0 mA cm⁻²/3.0 mAh cm⁻². This study pioneers a stereochemical design framework for aqueous electrolytes, elucidating chiral recognition mechanisms in solvation structures and establishing molecular topology engineering as a transformative strategy for high-efficiency energy storage systems.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":""},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739013","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}

{"title":"High-performance multifunctional semitransparent organic solar cells enabled by aperiodic band-pass filters","authors":"Mengan Zhao ,&nbsp;Jiang Wu ,&nbsp;Zekun Liu ,&nbsp;Yingying Fu ,&nbsp;Jian Liu ,&nbsp;Mukhamed L. Keshtov ,&nbsp;Dmitri Godovsky ,&nbsp;Zhiyuan Xie","doi":"10.1016/j.jechem.2025.07.024","DOIUrl":"10.1016/j.jechem.2025.07.024","url":null,"abstract":"<div><div>Semitransparent organic solar cells (ST-OSCs) are promising for building-integrated photovoltaics, offering power generation, transparency and heat insulation. High performance ST-OSCs need sophisticated optical management to balance the competing demands of power conversion efficiency (PCE) and average visible transmittance (AVT) for various applications. Here, a type of aperiodic band-pass filter (ABPF) made from LiF and ZnS are developed to selectively alter visible light transmission and near-infrared (NIR) reflection. This ABPF allows the active layers of ST-OSCs to re-harvest unabsorbed NIR photons, compensating for the loss of photocurrent caused by the high AVT of ST-OSCs. By carefully adjusting the thicknesses of individual layers within ABPFs, we can modulate their photonic bandgaps, enabling ST-OSCs to achieve multifunctional performance. ST-OSCs combined with the ABPF-1 demonstrate a remarkable light utilization efficiency (LUE) of 5.40%, a PCE of 14.21% and an AVT of 38.0%, which represent some of the highest values reported for ST-OSCs. Moreover, the ST-OSCs are equipped with excellent color neutrality and heat insulation functions. The ST-OSCs employing ABPF-2 exhibit a LUE of 4.78%, a color rendering index of 87.5 and an infrared rejection rate of 91.6%. This work offers an effective method for employing ABPFs in the creation of high-performance multifunctional ST-OSCs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 760-767"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739019","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}

{"title":"Study on the CO2 hydrate distribution and seepage flow characteristics within NGH reservoirs","authors":"Ziming Yang,&nbsp;Yufeng Jiang,&nbsp;Bingbing Chen,&nbsp;Mingjun Yang","doi":"10.1016/j.jechem.2025.07.029","DOIUrl":"10.1016/j.jechem.2025.07.029","url":null,"abstract":"<div><div>Under the dual drivers of global energy transition and carbon neutrality objectives, submarine carbon sequestration technology has emerged as a critical strategy for balancing energy security and climate governance. Depleted natural gas hydrate (NGH) reservoirs in seabed sediments exhibit favorable temperature and pressure conditions for carbon dioxide (CO₂) sequestration and hydrate formation. This study focuses on the thermodynamic and kinetic characteristics of phase transitions influenced by multiphase seepage, employing magnetic resonance imaging (MRI) technology to elucidate phase evolution patterns during CO₂ sequestration and the role of hydrate phase transitions in porous media on seepage behavior. The findings indicate that residual NGH frameworks significantly enhance CO₂ hydrate formation kinetics, exhibiting a top-down directional growth mode. However, progressive hydrate formation induces pore throat blockage, thereby constraining CO₂ migration. The continued CO₂ hydrate formation (consuming dissolved CO₂) further intensifies this clogging phenomenon. At an NGH saturation (<em>S</em>_i) of ∼15 %, hydrate and CO₂ occupied over 62 % of the reservoir pore space, indicating exceptional carbon storage capacity. Furthermore, the nonlinear evolution of reservoir permeability provides theoretical support for establishing a CO₂ sequestration-in situ hydrate energy synergistic system. These findings advance marine carbon sequestration technologies and provide a scientific foundation for achieving carbon-energy synergy regulation in NGH reservoirs under carbon neutrality goals.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 681-692"},"PeriodicalIF":14.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739012","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}

{"title":"Scalable and generalizable deep learning for battery state of health estimation in on-road electric vehicles","authors":"Hao Jing ,&nbsp;Jianyao Hu ,&nbsp;Shiqi (Shawn) Ou ,&nbsp;Zhilong Lv ,&nbsp;Renzhi Lyu ,&nbsp;Jingyuan Zhao","doi":"10.1016/j.jechem.2025.07.020","DOIUrl":"10.1016/j.jechem.2025.07.020","url":null,"abstract":"<div><div>Accurate battery health diagnostics are essential for timely maintenance, replacement, and the safe operation of electric vehicles (EVs). For on-road EVs, leveraging operational data for accurate state-of-health (SOH) estimation remains challenging due to varied degradation patterns across different driving conditions, vehicle types, and battery chemistries. Thus, developing an on-road-specific efficient feature system and a generalized SOH estimation framework adaptable to diverse EV models and chemistries is essential. To address these limitations, this study proposes a vehicle operational data-driven approach that integrates multi-dimensional feature fusion with a hybrid deep neural network architecture. Specifically, 12.83 million on-road data points spanning a wide range of vehicle types and battery chemistries are processed. Capturing representational, driving behavioral, and electrochemical characteristics, this study proposes a three-dimensional feature system comprising shallow, intermediate, and deep descriptors. To tackle challenges posed by long time spans and the limited effectiveness of Transformer models on multivariate inputs, a hybrid framework combining temporal convolutional networks with an enhanced iTransformer is developed, incorporating a differential attention mechanism to suppress attention noise. Experimental results demonstrate that the proposed method achieves high accuracy across two test sets, with an average R², MAPE, MAE, and RMSE of 98.88 %, 0.35 %, 0.31 %, and 0.40 %, respectively. This represents an 81.4 % reduction in RMSE compared to the best-performing baseline. Data scarcity experiments using reduced training data demonstrate that even when the training set is decreased from 80 % to 30 %, model performance remains stable, with the RMSE remaining below 0.16 %. Feature attribution analysis using Shapley additive explanations (SHAP) confirms the indispensability of all three feature dimensions, with driving behavior features being particularly influential. Following feature optimization, training time is reduced by 17.3 %. This study presents a robust SOH estimation framework tailored for intelligent cloud battery management systems, proactive maintenance, and the safe operation of EV batteries in practical environments.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":"Pages 823-841"},"PeriodicalIF":14.9,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749886","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}

{"title":"In situ controllable reconstruction of hydrogen spillover channel towards ampere-level hydrogen evolution in alkaline media","authors":"Zhan Zhao ,&nbsp;Tao Shi ,&nbsp;Jia Liang ,&nbsp;Kelei Huang ,&nbsp;Xiangchao Meng","doi":"10.1016/j.jechem.2025.07.018","DOIUrl":"10.1016/j.jechem.2025.07.018","url":null,"abstract":"<div><div>Acceleration of hydrogen spillover on electrocatalysts is effective for improving the hydrogen evolution reaction. However, it is still challenging to design rational proton migration pathway. Herein, we propose an in-situ reconstruction strategy to provide MoO₄²⁻-modified micro-environment, which prominently promotes the hydrogen spillover effect. The Mo species is introduced to be in situ oxidized and transformed to MoO₄²⁻. Experimental and theoretical studies indicate that the generation and re-adsorption of MoO₄²⁻ not only suppress the interfacial electron accumulation, but also optimize the electronic structure to facilitate thermo-neutral adsorption of H*, thus forming the effective hydrogen spillover channel. Finally, the reconstructed catalyst exhibits excellent HER performance (overpotential of 183 mV at 1000 mA cm⁻² in alkaline solution) and sustained high stability for 1000 h at 1000 mA cm⁻², which also shows great promising prospects for practical applications (<em>E</em>_W: 4.09 kW h m⁻³; η_ETH: 86%@60 ℃) in anion exchange membrane alkaline water electrolyzer.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"110 ","pages":""},"PeriodicalIF":14.9,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739017","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}