ChemElectroChem最新文献_第2页

Unraveling Oxygen Evolution Reaction Enhancement Mechanisms: From Internal to External Fields of Electrolyzers 解析析氧反应增强机制：从电解槽内部到外部场

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-24 DOI: 10.1002/celc.202500476

Qiwei Zhang, Yicheng Wang, Jiayuan Wei, Yazhi Wei, Bin Chen, Zehui Yang

{"title":"Unraveling Oxygen Evolution Reaction Enhancement Mechanisms: From Internal to External Fields of Electrolyzers","authors":"Qiwei Zhang, Yicheng Wang, Jiayuan Wei, Yazhi Wei, Bin Chen, Zehui Yang","doi":"10.1002/celc.202500476","DOIUrl":"https://doi.org/10.1002/celc.202500476","url":null,"abstract":"Hydrogen energy, as a pivotal secondary energy carrier for the future, plays a core role in achieving global carbon neutrality goals through its green production. Currently, water electrolysis for hydrogen production, particularly alkaline water electrolysis, is regarded as the primary pathway for green hydrogen generation due to its technological maturity and cost-effectiveness. However, this technology still faces challenges such as low operating current density, high energy consumption, and the difficulty in balancing the activity and stability of nonprecious metal catalysts under high current densities. The design of traditional electrocatalysts has reached a bottleneck, making breakthrough progress difficult. Therefore, this review focuses on internal and external field-assisted water electrolysis strategies, systematically summarizing the latest research advances in field regulation for enhancing electrocatalytic performance. These strategies provide innovative approaches to addressing the energy efficiency and cost challenges in water electrolysis for hydrogen production, demonstrating the significant potential of field regulation in driving the development of next-generation, high-performance, and highly stable water electrolysis technologies.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500476","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147666183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Surface Area Calculation Methods on the Interpretation of Lithium-Ion Diffusion Coefficient in Graphite Electrodes 表面积计算方法对石墨电极中锂离子扩散系数解释的影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-23 DOI: 10.1002/celc.202500448

Alessandro Gregucci, Antunes Staffolani, Francesca Soavi

{"title":"Influence of Surface Area Calculation Methods on the Interpretation of Lithium-Ion Diffusion Coefficient in Graphite Electrodes","authors":"Alessandro Gregucci, Antunes Staffolani, Francesca Soavi","doi":"10.1002/celc.202500448","DOIUrl":"https://doi.org/10.1002/celc.202500448","url":null,"abstract":"Accurate determination of the lithium-ion diffusion coefficient ( <math></math>) is essential for understanding mass-transport limitations in graphite anodes and for improving the performance of lithium-ion batteries. However, the calculation of <math></math> obtained from pulsed electrochemical techniques critically depends on the assumed active surface area, for which no standardized definition currently exists. In this work, we quantitatively assess how different surface area approximations—geometrical area, scanning electron microscopy-derived area, and Brunauer–Emmett–Teller surface area—affect the diffusion coefficient extracted from galvanostatic intermittent titration technique and intermittent current interruption analyses. Both methods were applied to a commercial graphite electrode using an identical dataset, enabling a direct and unbiased comparison of diffusion trends. We show that the choice of surface area leads to variations in <math></math> spanning several orders of magnitude, due to the squared dependence of the area term in the diffusion equation. Overall, our results demonstrate that careful and consistent surface area selection is crucial for reliable diffusion measurements and for ensuring comparability across studies.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigations on Three-Dimensional (3D) Woven Carbon Fiber Electrodes for Vanadium Redox Flow Batteries 钒氧化还原液流电池三维编织碳纤维电极研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-22 DOI: 10.1002/celc.202500398

Abher Rasheed, Tung Pham, Noemí Aguiló-Aguayo

{"title":"Investigations on Three-Dimensional (3D) Woven Carbon Fiber Electrodes for Vanadium Redox Flow Batteries","authors":"Abher Rasheed, Tung Pham, Noemí Aguiló-Aguayo","doi":"10.1002/celc.202500398","DOIUrl":"https://doi.org/10.1002/celc.202500398","url":null,"abstract":"Three-dimensional (3D) porous electrodes are known to enhance reaction rates due to their high surface areas and interconnected porous structures, which improve electrolyte flow, reduce concentration polarization, and lower ionic and electronic resistance, making them suitable for improving energy and system efficiencies in redox flow batteries (RFBs). In this study, 3D orthogonal woven electrodes made from continuous carbon filaments with varying warp and weft density were investigated to assess their impact on the vanadium RFB performance. Electrochemical impedance spectroscopy (EIS), including distribution of relaxation times (DRT), was employed to analyze resistance contributions in two different electrolytes: the ferro/ferricyanide system as a reference electrolyte in a symmetric configuration and the vanadium electrolyte as a commercially available option. The relationship between resistance components and electrode parameters—including warp, weft and binder density—is presented. Electrochemical behavior in the vanadium electrolyte was also assessed using polarization curves and charge–discharge cycles. Results demonstrate that 3D woven electrodes, especially those with higher weft density, exhibit superior hydraulic performance and tunable electrochemical properties, enabling system-level energy efficiencies comparable to those of conventional felts under the investigated experimental conditions. These findings provide valuable insights for optimizing 3D porous carbon electrodes for vanadium redox flow batteries (VRFBs).","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration-Assisted Polymerization for Void-Minimized Gel Polymer Electrolytes with Enhanced Interfacial Stability 增强界面稳定性的最小化空隙凝胶聚合物电解质的振动辅助聚合

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-20 DOI: 10.1002/celc.202500428

Jaewon Ryu, Taeksoo Jung, Jaehong Park, Sang-Moon Hwang, Byeongyong Lee

{"title":"Vibration-Assisted Polymerization for Void-Minimized Gel Polymer Electrolytes with Enhanced Interfacial Stability","authors":"Jaewon Ryu, Taeksoo Jung, Jaehong Park, Sang-Moon Hwang, Byeongyong Lee","doi":"10.1002/celc.202500428","DOIUrl":"https://doi.org/10.1002/celc.202500428","url":null,"abstract":"Gel polymer electrolytes (GPEs) offer a promising platform for high-energy and safe lithium metal batteries (LMBs) by combining the ionic conductivity of liquids with the mechanical robustness of solids. However, gas evolution during in-situ thermal polymerization often induces interfacial voids, weakening adhesion and degrading cycling stability. Here, we introduce low-frequency mechanical vibration (5 Hz) as a facile strategy to suppress void formation and reinforce interfacial integrity. Vibration redistributes the liquid precursor and disperses nitrogen gas generated from the azo initiator, yielding a conformal, void-free interface without altering the polymer's chemistry. This interfacial reinforcement increases adhesion energy by 54% (8.5 → 13.1 J m−2) and reduces charge–transfer resistance (39.9 → 23.1 Ω), enabling stable Li plating/stripping for over 300 h at 2 mA cm−2. In Li‖LFP full cells, vibration-treated GPEs enhance ionic transport and rate performance, delivering 118.7 mAh g−1 after 100 cycles at 1 C compared to 86.5 mAh g−1 for untreated cells. Numerical simulations further reveal that vibration promotes uniform ion flux and homogeneous Li deposition on the anode, while improved GPE coverage on the cathode ensures effective active-material utilization. This vibration-assisted polymerization provides an efficient interfacial engineering route toward durable, high-performance GPE-based LMBs.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500428","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring Oxygen Electrocatalysis in Phosphonium Ionic Liquids Towards Sodium–Oxygen Batteries 探索磷离子液体对钠氧电池的氧电催化作用

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-20 DOI: 10.1002/celc.202600003

Laura Garcia-Quintana, The An Ha, Fraser R. Hughson, Patrick C. Howlett, Alan M. Bond, Luke A. O’Dell, Nagore Ortiz-Vitoriano, Cristina Pozo-Gonzalo

{"title":"Exploring Oxygen Electrocatalysis in Phosphonium Ionic Liquids Towards Sodium–Oxygen Batteries","authors":"Laura Garcia-Quintana, The An Ha, Fraser R. Hughson, Patrick C. Howlett, Alan M. Bond, Luke A. O’Dell, Nagore Ortiz-Vitoriano, Cristina Pozo-Gonzalo","doi":"10.1002/celc.202600003","DOIUrl":"https://doi.org/10.1002/celc.202600003","url":null,"abstract":"Sodium–oxygen (Na–O2) batteries are attractive candidates for high-energy storage systems; however, their long-term operation is hindered by the instability of highly reactive intermediates such as the superoxide anion (O2•−). Ionic liquids (ILs) have emerged as promising electrolytes not only because of their intrinsic safety but also due to their ability to stabilise electrogenerated species. Building on our previous studies of the oxygen reduction reaction (ORR) in neat triisobutyl(methyl)phosphonium ([P1i4i4i4]+)-based ILs and inspired by encouraging reports on sodium electrochemistry, we here investigate the electrochemical behaviour of [P1i4i4i4]+-based electrolytes combined with NaFSI and NaFTFSI (FSI = bis(fluorosulfonyl)imide anions) and FTFSI = fluorosulfonyl)(trifluoromethanesulfonyl)imide) salts. A comprehensive cyclic voltammetry study, complemented by impedance spectroscopy, Fourier transformed infrared, and 23Na nuclear magnetic resonance, identified the optimal electrolyte composition in terms of salt concentration and anion. Notably, the use of [P1i4i4i4][FSI] with 30 mol% NaFSI enabled a Na–O2 cell to sustain more than 100 cycles, representing the highest cycling stability reported to date for an IL-based electrolyte. These results underscore the critical role of electrolyte formulation on ORR/OER pathways and provide valuable electrochemical insights for the rational design of IL-based electrolytes for Na–O2 batteries.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202600003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability and Performance of Sn–Zn/C versus Sn–Cu/C Bimetallic Catalysts for Electrochemical Formic Acid Production Under Realistic Diluted Feed Conditions 在实际稀释进料条件下，Sn-Zn /C与Sn-Cu /C双金属催化剂在电化学甲酸生产中的稳定性和性能

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-20 DOI: 10.1002/celc.202500435

Mitra Eviani, Tirto Prakoso, Dadan Kusdiana, Pramujo Widiatmoko, Hary Devianto

{"title":"Stability and Performance of Sn–Zn/C versus Sn–Cu/C Bimetallic Catalysts for Electrochemical Formic Acid Production Under Realistic Diluted Feed Conditions","authors":"Mitra Eviani, Tirto Prakoso, Dadan Kusdiana, Pramujo Widiatmoko, Hary Devianto","doi":"10.1002/celc.202500435","DOIUrl":"https://doi.org/10.1002/celc.202500435","url":null,"abstract":"Electrochemical CO2 reduction to formic acid enables sustainable carbon utilization, yet industrial deployment demands catalysts stable under realistic diluted feeds (10%–20% CO2) rather than laboratory-standard pure CO2. We systematically compare electrodeposited Sn–Zn/C and Sn–Cu/C bimetallic cathodes in Proton Exchange Membrane electrolyzers under pure (100%) and diluted (50%) CO2 feeds, bridging the lab-to-industry gap. Under pure CO2, Sn–Zn/C achieves 40.81% Faradaic efficiency (FE) for formic acid versus 29.17% for Sn–Cu/C. Critically, under diluted CO2, Sn–Zn/C retains 42.7% activity (17.44% FE), while Sn–Cu/C completely deactivates (0% FE). Multimodal characterization (scanning electron microscopy-energy-dispersive X-ray spectroscopy, X-ray diffractometer, Brunauer-Emmett-Teller (BET), Fourier transform infrared, electrochemical impedance spectroscopy) reveals that Sn–Zn/C's superior performance stems from thermodynamically compatible SnO2/ZnO phases, which exhibit beneficial textural evolution (+61% surface area) and compositional stability (ΔSn = −0.95%, ΔZn = −2.62%). Conversely, Sn–Cu/C suffers phase instability (complete CuO loss), textural collapse (-66% surface area), and severe compositional drift (ΔCu = −7.85%). This work demonstrates that pure CO2 testing alone cannot predict industrial viability and establishes design principles for practical CO2-to-formic acid catalysts: prioritize oxide phase compatibility, stable heterointerfaces, and robust textural properties. The findings expose the “purity bias” masking deactivation mechanisms and establish diluted-feed testing as indispensable for bridging laboratory performance with real-world electrochemical CO2 utilization.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Annealing of Graphite for Enhanced Electrochemical Performance in All-Solid-State Lithium Batteries 提高全固态锂电池电化学性能的石墨热退火

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-18 DOI: 10.1002/celc.202500447

Zhihan Liu, Sheng Wang, Kangzhe Yu, Zhan Wang, Jie Liu, Hao Tang, Weijun Tuo, Minghua Li, Yaqing Zhou, Bingbing Tian

{"title":"Thermal Annealing of Graphite for Enhanced Electrochemical Performance in All-Solid-State Lithium Batteries","authors":"Zhihan Liu, Sheng Wang, Kangzhe Yu, Zhan Wang, Jie Liu, Hao Tang, Weijun Tuo, Minghua Li, Yaqing Zhou, Bingbing Tian","doi":"10.1002/celc.202500447","DOIUrl":"https://doi.org/10.1002/celc.202500447","url":null,"abstract":"The advancement of sulfide-based all-solid-state lithium batteries (ASSLBs) is frequently constrained by the low initial Coulombic efficiency and interfacial degradation of graphite anodes, phenomena that predominantly originate from surface impurities of organic origin. In this work, we introduce a facile yet highly effective thermal purification strategy for industrial-grade graphite (SG-17), enabling the restoration of its intrinsic electrochemical properties. Multimodal spectroscopic and microscopic characterizations demonstrate that annealing at 500°C under an inert atmosphere effectively eliminates oxygenated surface species while preserving the crystalline architecture of graphite. When deployed in sulfide solid-state configurations, the purified graphite exhibits a substantially improved initial coulombic efficiency (94.6% vs. 86.3%), enhanced Li+ diffusion coefficients, suppressed charge–transfer resistance, and remarkable cycling stability with 81% capacity retention over 300 cycles. Distribution of relaxation time analyses further elucidates the critical role of surface purification in mitigating interfacial impedance growth and promoting efficient ion transport. These findings not only provide fundamental mechanistic insight into impurity-driven interfacial phenomena in ASSLBs but also establish a scalable and cost-effective pathway to advance graphite anodes for next-generation solid-state energy storage technologies.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Annealing of Graphite for Enhanced Electrochemical Performance in All-Solid-State Lithium Batteries 提高全固态锂电池电化学性能的石墨热退火

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-18 DOI: 10.1002/celc.202500447

Zhihan Liu, Sheng Wang, Kangzhe Yu, Zhan Wang, Jie Liu, Hao Tang, Weijun Tuo, Minghua Li, Yaqing Zhou, Bingbing Tian

{"title":"Thermal Annealing of Graphite for Enhanced Electrochemical Performance in All-Solid-State Lithium Batteries","authors":"Zhihan Liu, Sheng Wang, Kangzhe Yu, Zhan Wang, Jie Liu, Hao Tang, Weijun Tuo, Minghua Li, Yaqing Zhou, Bingbing Tian","doi":"10.1002/celc.202500447","DOIUrl":"https://doi.org/10.1002/celc.202500447","url":null,"abstract":"The advancement of sulfide-based all-solid-state lithium batteries (ASSLBs) is frequently constrained by the low initial Coulombic efficiency and interfacial degradation of graphite anodes, phenomena that predominantly originate from surface impurities of organic origin. In this work, we introduce a facile yet highly effective thermal purification strategy for industrial-grade graphite (SG-17), enabling the restoration of its intrinsic electrochemical properties. Multimodal spectroscopic and microscopic characterizations demonstrate that annealing at 500°C under an inert atmosphere effectively eliminates oxygenated surface species while preserving the crystalline architecture of graphite. When deployed in sulfide solid-state configurations, the purified graphite exhibits a substantially improved initial coulombic efficiency (94.6% vs. 86.3%), enhanced Li+ diffusion coefficients, suppressed charge–transfer resistance, and remarkable cycling stability with 81% capacity retention over 300 cycles. Distribution of relaxation time analyses further elucidates the critical role of surface purification in mitigating interfacial impedance growth and promoting efficient ion transport. These findings not only provide fundamental mechanistic insight into impurity-driven interfacial phenomena in ASSLBs but also establish a scalable and cost-effective pathway to advance graphite anodes for next-generation solid-state energy storage technologies.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical Decarboxylative Hydroxylation for the Sustainable Synthesis of Bempedoic Acid 电化学脱羧羟基化可持续合成苯二甲酸

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-17 DOI: 10.1002/celc.70173

Pietro Ronco, Antonia Simi, Enrico Lunghi, Federico Della Negra, Beatrice Trucchi, Massimo Verzini, Giuseppe Zanoni

{"title":"Electrochemical Decarboxylative Hydroxylation for the Sustainable Synthesis of Bempedoic Acid","authors":"Pietro Ronco, Antonia Simi, Enrico Lunghi, Federico Della Negra, Beatrice Trucchi, Massimo Verzini, Giuseppe Zanoni","doi":"10.1002/celc.70173","DOIUrl":"https://doi.org/10.1002/celc.70173","url":null,"abstract":"Bempedoic acid is a clinically approved lipid-lowering drug that inhibits adenosine triphosphate-citrate lyase, offering an alternative to statins for patients with statin intolerance or inadequate low-density lipoprotein cholesterol reduction. However, existing synthetic routes rely on hazardous reagents and complex multistep procedures. Here, we report a sustainable and efficient synthesis of bempedoic acid based on electrochemical hydroxylative decarboxylation as the key transformation. Starting from Meldrum's acid, an optimized sequence of alkylation, hydrolysis, and decarboxylation affords the carboxylic acid precursor under mild conditions and in the absence of metal-containing reagents. Subsequent electrochemical oxidation in dimethylformamide/hexafluoroisopropanol, using graphite and stainless-steel electrodes, enables direct conversion of the acid to the corresponding alcohol intermediate in up to 60% yield, followed by base-promoted hydrolysis to yield bempedoic acid. Compared with previously reported TosMIC- and malonate-based routes, this approach eliminates the use of toxic and pyrophoric reagents such as NaH and Pd/C, while improving atom economy and scalability. The method described herewith represents a robust and practical synthetic strategy for the synthesis of bempedoic acid and highlights the potential of electrochemical methodologies for sustainable pharmaceutical manufacturing.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.70173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Catalyst/Polyelectrolyte Interfaces for Anion Exchange Membrane Water Electrolysis Under Low-Concentration Alkaline Conditions 低浓度碱性条件下阴离子交换膜电解催化剂/聚电解质界面设计

IF 3.5 4区化学

ChemElectroChem Pub Date : 2026-03-16 DOI: 10.1002/celc.202500461

Hiroto Okuyama, Kenya Yamasaki, Pranav K. Gangadharan, Shoji Miyanishi, Hidenori Kuroki, Takeo Yamaguchi

{"title":"Design of Catalyst/Polyelectrolyte Interfaces for Anion Exchange Membrane Water Electrolysis Under Low-Concentration Alkaline Conditions","authors":"Hiroto Okuyama, Kenya Yamasaki, Pranav K. Gangadharan, Shoji Miyanishi, Hidenori Kuroki, Takeo Yamaguchi","doi":"10.1002/celc.202500461","DOIUrl":"https://doi.org/10.1002/celc.202500461","url":null,"abstract":"Water electrolysis powered by renewable energy sources is a promising technique for realizing a decarbonized society. Notably, anion exchange membrane water electrolysis (AEMWE) is attracting considerable attention as a technology that enables high energy efficiency using nonprecious metal catalysts. In AEMWE, the design of the interfacial state among the catalyst, ionomer, and anion exchange membrane (AEM) plays an important role in determining cell performance. This interfacial state becomes particularly critical under diluted alkaline operation, where ionic conduction is intrinsically limited; however, systematic studies on catalyst–ionomer–membrane interfaces under such low-concentration alkaline conditions remain scarce. Here, AEMWE is performed using an originally synthesized AEM and a self-supported porous anode catalyst to systematically investigate the impact of ionomer layer thickness and uniformity on electrolysis performance. We further show that coating a thin layer of Ni nanoparticles onto the AEM improves contact at the membrane–catalyst layer interface. Membrane–electrode assemblies (MEAs) engineered to form suitable membrane–ionomer and ionomer–catalyst interfaces exhibit improved ionic conductivity and, consequently, enhanced performance in AEMWE with low-concentration alkaline solution. This study highlights the importance of interfacial design in AEMWE and provides insight into the rational design of MEAs for efficient operation under diluted alkaline conditions.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"13 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500461","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0