Carbon Energy最新文献

{"title":"Heterogeneous Interface Engineering of CoMoP/C3N4/N-Doped Carbon to Boost Overall Water Splitting","authors":"Bo Ma,&nbsp;Tao Bo,&nbsp;Sihao Deng,&nbsp;Chunyong He","doi":"10.1002/cey2.70069","DOIUrl":"https://doi.org/10.1002/cey2.70069","url":null,"abstract":"<p>The design of efficient and cost-effective bifunctional catalysts, which are capable of driving both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), is of paramount importance for advancing overall water splitting. Here, we developed an innovative heterogeneous interface engineering strategy to boost the electrocatalytic performance of overall water splitting. This approach involves the synergistic integration of ultra-fine CoMoP nanocrystals coupled with three-dimensional (3D) porous C₃N₄/N-doped carbon (NC) architectures, constructing a distinctive CoMoP/C₃N₄/NC heterogeneous interface. The CoMoP/C₃N₄/NC exhibits distinguished overall water splitting performance. To drive the overall water splitting current of 10 mA cm⁻², the CoMoP/C₃N₄/NC||CoMoP/C₃N₄/NC electrolysis cell only needs an ultralow cell voltage of 1.496 V. The electronic properties and localized coordination environments characterizations, and density functional theory (DFT) calculations elucidate that the improved catalytic activities of CoMoP/C₃N₄/NC are primarily attributed to the synergistic interfacial coupling between CoMoP/C₃N₄/NC heterogeneous interface. A novel multi-site synergistic catalytic mechanism was revealed by the DFT calculations, in which the optimum H* adsorption site on CoMoP/C₃N₄/NC for HER is on the cobalt atoms in CoMoP with the ultralow Gibbs free energy of hydrogen bonding (Δ<i>G</i>_H*) of 0.018 eV, while for the OER, the optimum intermediates adsorption site of the CoMoP/C₃N₄/NC is on the carbon atoms in C₃N₄/NC. Besides, the intricately engineered 3D hierarchical porous framework of the CoMoP/C₃N₄/NC can facilitate the ion and electron transport and improve mass transfer, which gives rise to enhanced water splitting performance.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145619206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights Into Improving the Li-Ion Transference Number and Li Deposition Uniformity Toward a High-Current-Density Lithium Metal Anode","authors":"Subi Yang,&nbsp;Seungho Lee,&nbsp;Min Sung Kang,&nbsp;Kwang Chul Roh,&nbsp;Jihoon Seo,&nbsp;Dongsoo Lee,&nbsp;Kwanghyun Kim,&nbsp;Sangkyu Lee,&nbsp;Sung Beom Cho,&nbsp;Patrick Joohyun Kim,&nbsp;Junghyun Choi","doi":"10.1002/cey2.70053","DOIUrl":"https://doi.org/10.1002/cey2.70053","url":null,"abstract":"<p>The practical application of lithium (Li) metal batteries (LMBs) faces challenges due to the irreversible Li deposition/dissolution process, which promotes Li dendrite growth with severe parasitic reactions during cycling. To address these issues, achieving uniform Li-ion flux and improving Li-ion conductivity of the separator are the top priorities. Herein, a separator (PCELS) with enhanced Li-ion conductivity, composed of polymer, ceramic, and electrically conductive carbon, is proposed to facilitate fast Li-ion transport kinetics and increase Li deposition uniformity of the LMBs. The PCELS immobilizes PF₆^– anions with high adsorption energies, leading to a high Li-ion transference number. Simultaneously, the PCELS shows excellent electrolyte wettability on both its sides, promoting rapid ion transport. Moreover, the electrically conductive carbon within the PCELS provides additional electron transport channels, enabling efficient charge transfer and uniform Li-ion flux. With these advantages, the PCELS achieves rapid Li-ion transport kinetics and uniform Li deposition, demonstrating excellent cycling stability over 100 cycles at a high current density of 12.0 mA cm^–2. Furthermore, the PCELS shows stable cycling performances in Li–S cell tests and delivers an excellent capacity retention of 95.45% in the Li|LiFePO₄ full-cell test with a high areal capacity of over 5.5 mAh cm^–2.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solid–Polymer–Electrolyte Interphase Inductively Formed by Surface Chemistry to Stabilize the High Ni Cathode in Sulfide-Based All-Solid-State Lithium Batteries","authors":"Guo Tang,&nbsp;Gengzhong Lin,&nbsp;Yicheng Deng,&nbsp;Hui Li,&nbsp;Yuliang Cao,&nbsp;Yongjin Fang,&nbsp;Hanxi Yang,&nbsp;Xinping Ai","doi":"10.1002/cey2.70076","DOIUrl":"https://doi.org/10.1002/cey2.70076","url":null,"abstract":"<p>High-nickel cathode, LiNi_0.8Co_0.1Mn_0.1O₂ (NCM811), and sulfide-solid electrolyte are a promising combination for all-solid-state lithium batteries (ASSLBs). However, this combination faces the issue of interfacial instability between the cathode and electrolyte. Given the surface alkalinity of NCM811, we propose a strategy to construct a solid–polymer–electrolyte (SPE) interphase on NCM811 surface by leveraging the surface alkaline residues to nucleophilically initiate the in-situ ring-opening polymerization of cyclic organic molecules. As a proof-of-concept, this study demonstrates that the ring-opening copolymerization of 1,3-dioxolane and maleic anhydride produces a homogeneous, compact, and conformal SPE layer on NCM811 surface to prevent the cathode from contact and reaction with Li₆PS₅Cl solid-state electrolyte. Consequently, the SPE-modified-NCM811 in ASSLBs exhibits high capacities of 193.5 mA h g^–1 at 0.2 C, 160.9 mA h g^–1 at 2.0 C and 112.3 mA h g^–1 at 10 C, and particularly, excellent long-term cycling stabilities over 11000 cycles with a 71.95% capacity retention at 10 C at 25°C, as well as a remained capacity of 117.9 mA h g^–1 after 8000 cycles at 30 C at 60°C, showing a great application prospect. This study provides a new route for creating electrochemically and structurally stable solid–solid interfaces for ASSLBs.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"8 1","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Progress in Silicon-Based Anodes for High-Energy Lithium-Ion Batteries: From the Perspective of “Size Effects”","authors":"Wengang Yan,&nbsp;Zitong Chen,&nbsp;Yuefeng Su,&nbsp;Yun Lu,&nbsp;Lai Chen,&nbsp;Qing Huang,&nbsp;Meng Wang,&nbsp;Yibiao Guan,&nbsp;Feng Wu,&nbsp;Ning Li","doi":"10.1002/cey2.70057","DOIUrl":"https://doi.org/10.1002/cey2.70057","url":null,"abstract":"<p>Silicon-based anode materials have garnered considerable attention in lithium-ion batteries (LIBs) due to their exceptionally high theoretical capacity and energy density. However, intrinsic challenges, such as significant volumetric expansion and the consequent degradation in cycling stability, severely hinder their practical application. As a result, development of silicon anodes that can effectively mitigate volumetric expansions, enhance cycling durability, and improve rate performance has emerged as a critical research focus. However, due to neglect of “size effects”, the modification strategy of silicon-based electrodes lacks systematic, scientific, and comprehensive guidance. Herein, this review starts from the “size effect” of silicon-based materials, and reveals in depth the different failure mechanisms of nano-silicon (Si NPs) and micro-silicon (μSi). Furthermore, this review provides targeted classification of modification strategies for Si NPs and μSi, and reviews comprehensively, in detail, and in depth the latest research progress on silicon-based materials. In addition, the review also comprehensively summarizes the cutting-edge dynamics of matching silicon-based electrodes with solid electrolytes to construct high-energy LIBs. It is hoped that this review can provide comprehensive and systematic scientific guidance for modification strategies of silicon-based electrodes, which is of great significance for promoting the industrialization process of silicon-based electrodes in high-energy LIBs.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145625680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Conductive and Ion-Selective Electrocatalyst Enables Stable and Efficient Direct Saline Water Splitting","authors":"Juan He,&nbsp;Shiyi Li,&nbsp;Zekai Zhang,&nbsp;Ruidan Duan,&nbsp;Fang Xu,&nbsp;Linfeng Lei,&nbsp;Yixing Wang,&nbsp;Daqin Guan,&nbsp;Zhiwei Hu,&nbsp;Siyao Li,&nbsp;Linzhou Zhuang,&nbsp;Kang Huang,&nbsp;Minghui Zhu,&nbsp;Cheng Lian,&nbsp;Wei Zhou,&nbsp;Zongping Shao,&nbsp;Zhi Xu","doi":"10.1002/cey2.70049","DOIUrl":"https://doi.org/10.1002/cey2.70049","url":null,"abstract":"<p>Seawater electrolysis is promising for green hydrogen production, while its application is inhibited by sluggish anodic oxygen evolution reaction (OER) and rapid chloride corrosion-induced electrode deactivation. Herein, we report a conductive and ion-selective OER electrocatalyst with a CoFe alloy core and microporous metal-doped carbon shell. Co/Fe-N₄-C active sites in the shell optimize the adsorption strength of intermediates and synergize with the metal core to endow the catalyst with high OER activity and selectivity, while the rich ultra-micropores in the shell demonstrate a significant sieving effect to hinder Cl⁻ transfer, thus protecting the inner Co/Fe-N₄-C active sites and metal core from Cl⁻ corrosion. The catalyst is assembled in an alkaline seawater electrolyzer with an electrode geometric area of 254 cm² and delivers a current density of 3000 A m⁻² at 1.85 V for 330 h. Such catalysts can be synthesized in a large batch (100 g), providing sound opportunities for industrial seawater splitting.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrastable One-Dimensional Ti2S Electride Support for an Efficient and Durable Bifunctional Electrocatalyst","authors":"Siyuan Ren,&nbsp;Kyoung Ryeol Park,&nbsp;Binod Regmi,&nbsp;Wooseon Choi,&nbsp;Yun Seong Cho,&nbsp;Seon Je Kim,&nbsp;Heechae Choi,&nbsp;Young-Min Kim,&nbsp;Joohoon Kang,&nbsp;Hyuksu Han,&nbsp;Seong-Gon Kim,&nbsp;Sung Wng Kim","doi":"10.1002/cey2.70070","DOIUrl":"https://doi.org/10.1002/cey2.70070","url":null,"abstract":"<p>Electrides, in which anionic electrons are trapped in structural cavities, have garnered significant attention for exceptional functionalities based on their low work function. In low-dimensional electrides, a strong quantum confinement of anionic electrons leads to many interesting phenomena, but a severe chemical instability due to their open structures is one of the major disadvantages for practical applications. Here we report that one-dimensional (1D) dititanium sulfide electride exhibits an extraordinary stability originating from the surface self-passivation and consequent durability in bifunctional electrocatalytic activity. Theoretical calculations identify the uniqueness of the 1D [Ti₂S]²⁺·2e⁻ electride, where multiple cavities form two distinct channel structures of anionic electrons. Combined surface structure analysis and in-situ work function measurement indicate that the natural formation of amorphous titanium oxide surface layer in air is responsible for the remarkable inertness in water and pH-varied solutions. This makes the [Ti₂S]²⁺·2e⁻ electride an ideal support for a heterogenous metal-electride hybrid catalyst, demonstrating the enhanced efficiency and superior durability in both the hydrogen evolution and oxygen reduction reactions compared to commercial Pt/C catalysts. This study will stimulate further exploratory research for developing a chemically stable electride in reactive conditions, evoking a strategy for a practical electrocatalyst for industrial energy conversions.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 10","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145371746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting the Power Characteristics of All-Solid-State Batteries Through Improved Electrochemical Stability: Site-Specific Nb Doping in Argyrodite","authors":"Yongsun Park,&nbsp;So Yi Lee,&nbsp;Hae-Yong Kim,&nbsp;Myeongcho Jang,&nbsp;Sunho Ko,&nbsp;Gwangseok Oh,&nbsp;Seung-Deok Seo,&nbsp;Min Jae You,&nbsp;Hanjun Kim,&nbsp;Minwook Pin,&nbsp;Robson S. Monteiro,&nbsp;Seungho Yu,&nbsp;Kyung-Wan Nam,&nbsp;Sang-Cheol Nam,&nbsp;Ohmin Kwon","doi":"10.1002/cey2.70058","DOIUrl":"https://doi.org/10.1002/cey2.70058","url":null,"abstract":"<p>Enhancing the energy density of all-solid-state batteries (ASSBs) with lithium metal anodes is crucial, but lithium dendrite-induced short circuits limit fast-charging capability. This study presents a high-power ASSB employing a novel, robust solid electrolyte (SE) with exceptionally high stability at the lithium metal/SE interface, achieved via site-specific Nb doping in the argyrodite structure. Pentavalent Nb incorporation into Wyckoff 48<i>h</i> sites enhances structural stability, as confirmed by neutron diffraction, X-ray absorption spectroscopy, magic angle spinning nuclear magnetic resonance, and density functional theory calculations. While Nb doping slightly reduces ionic conductivity, it significantly improves interfacial stability, suppressing dendrite formation and enabling a full cell capable of charging in just 6 min (10-C rate, 16 mA cm⁻²). This study highlights, for the first time, that electrochemical stability, rather than ionic conductivity, is key to achieving high-power performance, advancing the commercialization of lithium metal-based ASSBs.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances in NASICON-Type Electrolytes for Solid-State Metal Batteries","authors":"Jingrui Kang,&nbsp;Zhengyang Hu,&nbsp;Meng Niu,&nbsp;Jiahui Wang,&nbsp;Zexuan Qi,&nbsp;Zejian Zheng,&nbsp;Yazi Liu,&nbsp;Cuiping Jia,&nbsp;Xinai Ren,&nbsp;Tianle Yang,&nbsp;Shiyao Xu,&nbsp;Tianyu Wu,&nbsp;Yongsong Liu,&nbsp;Dingquan Wang,&nbsp;Shijin Yuan,&nbsp;Xiaoyong Wei,&nbsp;Yao Liu,&nbsp;Lei Liu","doi":"10.1002/cey2.70031","DOIUrl":"https://doi.org/10.1002/cey2.70031","url":null,"abstract":"<p>Compared to traditional liquid electrolyte batteries, solid metal batteries offer advantages such as a wide operating temperature range, high energy density, and improved safety, making them a promising energy storage technology. Solid electrolytes, as the core components of solid-state batteries, are key factors in advancing solid-state battery technology. Among various solid electrolytes, Na super ionic conductor (NASICON)-type solid electrolytes exhibit high ionic conductivity (10⁻³ S·cm⁻¹), a wide electrochemical window, and good thermal stability, providing room for the development of high energy-density solid metal batteries. Since the discovery of NASICON-type solid electrolytes in 1976, interest in their use in all-solid-state battery development has grown significantly. In this review, we comprehensively analyze the common features of NASICON lithium-ion conductors and NASICON sodium-ion conductors, review the historical development of NASICON-type solid electrolytes, systematically summarize the transport mechanisms of metal cations in NASICON-type solid electrolytes, discuss the latest strategies for enhancing ionic conductivity, elaborate on the latest methods for improving mechanical stability and interface stability, and point out the requirements of high energy density devices for NASICON-type solid electrolytes as well as three types of in situ characterization techniques for interfaces. Finally, we highlight the challenges and potential solutions for the future development of NASICON-type solid electrolytes and solid-state metal batteries.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zirconium-Based Amphoteric Metal–Organic Framework Membrane for Blue Energy Harvesting","authors":"Rockson Kwesi Tonnah,&nbsp;Milton Chai,&nbsp;Mohammad Khedri,&nbsp;Milad Razbin,&nbsp;Yasaman Boroumand,&nbsp;Reza Maleki,&nbsp;Huan Xiao,&nbsp;Amir Razmjou,&nbsp;Mohsen Asadnia","doi":"10.1002/cey2.70050","DOIUrl":"https://doi.org/10.1002/cey2.70050","url":null,"abstract":"<p>Salination of solutions of salinity gradient releases large-scale clean and renewable energy, which can be directly and efficiently transformed into electrical energy using ion-selective nanofluidic channel membranes. However, conventional ion-selective membranes are typically either cation- or anion-selective. A pH-switchable system capable of dual cation and anion transport along with salt gradient energy harvesting properties has not been demonstrated in ion-selective membranes. Here, we constructed an amphoteric heterolayer metal–organic framework (MOF) membrane with subnanochannels modified with carboxylic and amino functional groups. The amphoteric MOF-composite membrane, AAO/aUiO-66-(COOH)₂/UiO-66-NH₂, exhibits pH-tuneable ion conduction and achieves osmotic energy conversion of 7.4 and 5.7 W/m² in acidic and alkaline conditions, respectively, using a 50-fold salt gradient. For different anions but the same cation diffusion transport, the amphoteric membrane produces an outstanding I⁻/CO₃²⁻ selectivity of ~4160 and an osmotic energy conversion of ~133.5 W/m². The amphoteric membrane concept introduces a new pathway to explore the development of ion transport and separation technologies and their application in osmotic energy-conversion devices and flow batteries.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 11","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electronic and Lattice Modulation of CoxP Nanosheets by In-Situ Doped Boron to Enhance Activity and *Cl Anti-Poisoning in Alkaline Seawater Electrolysis","authors":"Kun Lang,&nbsp;Yuanyingxue Gao,&nbsp;Qi Li,&nbsp;Mingyang Liu,&nbsp;Bowen Liu,&nbsp;Jianan Liu,&nbsp;Xudong Xiao,&nbsp;Zhijun Li,&nbsp;Huiyuan Meng,&nbsp;Baojiang Jiang","doi":"10.1002/cey2.70056","DOIUrl":"https://doi.org/10.1002/cey2.70056","url":null,"abstract":"<p>The high chloride (Cl) concentration in seawater presents a critical challenge for hydrogen production via seawater electrolysis by deactivating catalysts through active site passivation, highlighting the need for catalyst innovation. Herein, in situ boron-doped Co₂P/CoP (B-Co_<i>x</i>P) ultrathin nanosheet arrays are prepared as high-performance bifunctional electrocatalysts for seawater decomposition. Density functional theory (DFT) simulations, comprehensive characterizations, and in-situ analyses reveal that boron doping enhances electron density around Co centers, induces lattice distortions, and significantly elevates catalytic activity and durability. Moreover, boron doping reduces *Cl retention time at active sites—defined as the DFT-derived residence time of adsorbed Cl intermediates based on their adsorption energies—effectively mitigating Cl-induced poisoning. In a three-electrode system, B-Co_<i>x</i>P achieves exceptional bifunctional performance with overpotentials of 11 mV for hydrogen evolution reaction and 196 mV for oxygen evolution reaction to deliver 10 and 50 mA·cm^–2, respectively—a result that showcases its superior bifunctional properties surpassing noble metal-based counterparts. In an alkaline electrolyzer, it delivers 1.56 A·cm^–2 at 2.87 V for seawater electrolysis with outstanding stability over 500 h, preserving active site integrity via boron's robust protective role. This study defines a paradigm for designing advanced seawater electrolysis catalysts through a strategic in-situ doping approach.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 10","pages":""},"PeriodicalIF":24.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.70056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145371763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}