Journal of Materials Chemistry A最新文献_第2页

Simultaneously harnessing interfacial molecular layer and solvation structure for highly reversible and stable zinc metal anodes

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-21 DOI: 10.1039/d6ta07104j

Jiaxin Hu,Jie Wu,Wenzhen Du,Shenglong Wu,Weijie Zhang,Meng Yao,Qiongguang Li

{"title":"Simultaneously harnessing interfacial molecular layer and solvation structure for highly reversible and stable zinc metal anodes","authors":"Jiaxin Hu,Jie Wu,Wenzhen Du,Shenglong Wu,Weijie Zhang,Meng Yao,Qiongguang Li","doi":"10.1039/d6ta07104j","DOIUrl":"https://doi.org/10.1039/d6ta07104j","url":null,"abstract":"The zinc metal anode (ZMA) suffers from uncontrollable dendrite growth and severe parasitic reactions, which restrict its cycling stability and practical applications.Herein, we simultaneously tailor the interfacial molecular layer and the solvation structure to achieve a highly reversible and stable ZMA by introducing sodium 5sulfoisophthalate dimethyl ester (SIPM) as a multifunctional electrolyte additive.Comprehensive theoretical analyses and experimental results reveal that the multiple active sites (-SO-3 and -COOCH 3 ) endow SIPM with excellent zincophilicity, enabling its preferential adsorption on the ZMA surface to form an interfacial molecular layer, while simultaneously modulating the Zn 2+ solvation structure in the bulk electrolyte. This dual functionality markedly reduces the de-solvation energy barrier and weakens the reactivity of water molecules. Consequently, the synergistic regulation of the interfacial layer and solvation structure effectively suppresses water-induced parasitic reactions and induces uniform Zn 2+ deposition. The Zn||Zn symmetric cell maintains stable cycling for over 2180 h at 10 mA cm -2 and 1 mAh cm -2 , and the Zn||V 2 O 5 full battery delivers a high capacity retention of 79.6% after 2500 cycles at 10 A g -1 . This work provides new insights into the synergistic structural regulation of both interfacial chemistry and bulk electrolyte, holding great promise for accelerating the practical application of aqueous zinc batteries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"233 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Throughput Screening of Alucone and Zincone Photoresists through Molecular Layer Deposition

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta03808e

Duncan J Reece,Emily R Crum,Jane Keth,David S Bergsman

{"title":"High-Throughput Screening of Alucone and Zincone Photoresists through Molecular Layer Deposition","authors":"Duncan J Reece,Emily R Crum,Jane Keth,David S Bergsman","doi":"10.1039/d6ta03808e","DOIUrl":"https://doi.org/10.1039/d6ta03808e","url":null,"abstract":"As extreme ultraviolet (EUV) lithography advances toward sub-10 nm half-pitch patterning, photoresists must deliver improved sensitivity while enabling higher resolution and reduced line-edge roughness. Hybrid organic–inorganic thin films deposited via molecular layer deposition (MLD) offer tunable composition and enhanced EUV absorptivity, making them promising resist candidates. Here, using a high-throughput MLD reactor, we screen twelve chemistries, comprising aluminum- and zinc-based hybrids linked by one of six organic diols, for their stability and processability. From these, an alkynefunctionalized alucone incorporating 2-butyne-1,4-diol (BTY) emerged as the leading candidate for detailed study. Characterization of this chemistry through Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry confirmed alkyne incorporation within the hybrid network, where the electron-rich triple bond may serve as a preferential site for radiation-induced crosslinking. Using electron-beam lithography at 100 kV as a proxy for EUV resist evaluation, a sensitivity of 𝐷50 = 2695 μC cm−2 with high contrast, 𝛾 = 2.19, was achieved while requiring 300× more dilute developer than previously reported hafnium-based MLD resists. Compared to other aluminum-based MLD resists, BTY-alucone exhibited 21–33× higher sensitivity. Dense patterns at 20 nm half-pitch were also achieved. These results establish alkyne-functionalized alucone as a promising EUV resist candidate and validate high-throughput MLD screening for accelerated resist development.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"12 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contributors to the Emerging Investigators 2026 collection

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta90250b

引用次数: 0

Influence of Graphite Characteristics on its Electrochemical Performance in Li-ion Solid-State Batteries

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta04470k

Long Hoang Bao Nguyen,Adrian Beda,Dominique Foix,Laure Monconduit,Camelia Matei Ghimbeu

{"title":"Influence of Graphite Characteristics on its Electrochemical Performance in Li-ion Solid-State Batteries","authors":"Long Hoang Bao Nguyen,Adrian Beda,Dominique Foix,Laure Monconduit,Camelia Matei Ghimbeu","doi":"10.1039/d6ta04470k","DOIUrl":"https://doi.org/10.1039/d6ta04470k","url":null,"abstract":"Li-ion solid-state batteries (Li-SSBs) have recently emerged as safe and high energy density storage systems. Among all the negative electrode materials that have been successfully integrated into Li-SSBs, graphite still holds an important place in practical applications thanks to its high electronic conductivity, fast delithiation process, and stable capacity retention upon long-term cycling. Nonetheless, graphite sources often exhibit a wide variety in their physical properties, including particle size, morphology, specific surface area, surface chemistry, and structural defects, each of these parameters will have a direct impact on the electrochemical behaviour of graphite. In this study, the electrochemical performance of five different graphite materials will be investigated in Li-SSBs using Li 6 PS 5 Cl as the solid-electrolyte. The obtained results show that a higher active surface area value together with an important presence of Ocontaining surface functional group will result in more irreversible Li + loss and a low initial Coulombic efficiency value in the first cycle. However, the presence of these surface functional groups is essential to create an effective adhesion between graphite and Li 6 PS 5 Cl in the electrode composite. Besides surface chemistry, particle size has been shown to play an important role to ensure an effective percolation effect and maintain a stable capacity retention upon long-term cycling. Consequently, the utilization of graphite material with suitable particle size and surface chemistry can enable long-term Li-SSBs at high areal capacity values.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"77 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beyond Static Regulation: Magnetic-Field-Driven Dynamic Control of Single-Atom Catalysis via Interfacial Coupling

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta06909f

Qinyu Jiang,Guohao Wu,Li Zhang,Ling Wen,Shanru Feng,Youcai Han,Chuhao Liu,Jiabin Chen,Yue Wu,Chen Chen

{"title":"Beyond Static Regulation: Magnetic-Field-Driven Dynamic Control of Single-Atom Catalysis via Interfacial Coupling","authors":"Qinyu Jiang,Guohao Wu,Li Zhang,Ling Wen,Shanru Feng,Youcai Han,Chuhao Liu,Jiabin Chen,Yue Wu,Chen Chen","doi":"10.1039/d6ta06909f","DOIUrl":"https://doi.org/10.1039/d6ta06909f","url":null,"abstract":"The electronic structure of single-atom sites is usually pre-set during synthesis and tends to remain fixed, making their catalytic behavior mainly dependent on static regulation of electronic structure. For complex reactions involving the sequential conversion of multiple intermediates, such as the oxygen evolution reaction (OER), a fixed electronic structure often cannot simultaneously meet the requirements of different reaction steps. Therefore, endowing single-atom sites with external-field responsiveness and enabling dynamic regulation of their electronic/spin states during the reaction process remain important challenges for further improving their catalytic performance. Herein, we constructed a singleatom/nanoparticle composite catalyst, Co SAs@Co2P NPs, and dynamically regulated its OER catalytic behavior using an external magnetic field. Electrochemical tests show that Co SAs@Co2P NPs exhibit higher OER activity than the CoNC and Co2P control samples. Under an external magnetic field of 300 mT, its Ej=10 further decreases by approximately 35 mV, whereas CoNC and the physical mixture show only limited responses. Density functional theory calculations indicate that Co2P nanoparticles can induce a local magnetic moment on adjacent Co single atoms through Co2P-CoN4 interfacial electronic coupling, thereby endowing them with magnetic responsiveness. On this basis, magnetic-field-induced spin polarization can further regulate the interaction between Co sites and oxygen-containing intermediates, helping to lower the OER reaction barrier and enhance the apparent activity. This work constructs magnetically responsive single-atom sites through interfacial coupling and provides a useful design reference for the dynamic regulation of electronic/spin states in magnetic-field-assisted single-atom catalysts.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"12 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial Crystallinity Engineering of Ti₃C₂Tₓ MXene for High-Performance NiCoFe Oxygen Evolution Electrodes in Anion Exchange Membrane Water Electrolysis

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta06801d

Yujin Cho,Komal Patil,Sujin Kwon,Daim Choi,Jiwon Choi,Laim Lee,Shahzaib Ali,Doyoung Byun,Jin H Mok,Dae-Hyun Cho,Jongsung Park

{"title":"Interfacial Crystallinity Engineering of Ti₃C₂Tₓ MXene for High-Performance NiCoFe Oxygen Evolution Electrodes in Anion Exchange Membrane Water Electrolysis","authors":"Yujin Cho,Komal Patil,Sujin Kwon,Daim Choi,Jiwon Choi,Laim Lee,Shahzaib Ali,Doyoung Byun,Jin H Mok,Dae-Hyun Cho,Jongsung Park","doi":"10.1039/d6ta06801d","DOIUrl":"https://doi.org/10.1039/d6ta06801d","url":null,"abstract":"Enhancing interfacial charge transfer and structural stability is essential for developing highperformance oxygen evolution reaction (OER) electrodes for anion exchange membrane water electrolysis (AEMWE). Herein, highly crystalline Ti₃C₂Tₓ MXene (HC-MXene), derived from an Al-enriched Al-Ti₃AlC₂ MAX precursor, is employed as a conductive and structurally robust conductive support for NiCoFe/α-Fe₂O₃ OER electrodes. Owing to its highly ordered structure, HC-MXene facilitates rapid electron transport, lowers interfacial charge-transfer resistance, and reinforces electrode integrity under alkaline operating conditions. Consequently, the HC-MX/NCF/α-Fe₂O₃ electrode exhibits excellent OER activity, requiring an overpotential of only 218.4 mV at 10 mA cm⁻², together with a low Tafel slope of 60 mV dec⁻¹ and a small Rct of 0.242 Ω. Compared with conventional MXene-and bare Ni foam-based counterparts, the enhanced activity highlights the importance of crystallinity engineering in optimizing interfacial electron transfer and catalytic kinetics. In a single-cell AEMWE, the electrode delivers 2.189 A cm⁻² at 2.0 V and sustains stable operation at 0.5 A cm⁻² for 150 h with a low voltage degradation rate of 86 μV h⁻¹. Moreover, the superior single-cell performance confirms synergistic benefits of enhanced conductivity, reduced resistance, and durable architecture. These findings demonstrate a promising strategy for advanced nonprecious-metal OER electrodes in practical AEMWE systems.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"16 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facet Engineering of the Photocatalytic Surface Microenvironment: From Charge Carrier Dynamics to Reaction Pathway Control

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta07273a

Hao Du,Jie Yu,Yamin Chen,Huihui Zhou,Hanyun Zhang,Jiaqi Li,Shengjie Xia,Woon-Ming Lau,Guanhua Zhang

{"title":"Facet Engineering of the Photocatalytic Surface Microenvironment: From Charge Carrier Dynamics to Reaction Pathway Control","authors":"Hao Du,Jie Yu,Yamin Chen,Huihui Zhou,Hanyun Zhang,Jiaqi Li,Shengjie Xia,Woon-Ming Lau,Guanhua Zhang","doi":"10.1039/d6ta07273a","DOIUrl":"https://doi.org/10.1039/d6ta07273a","url":null,"abstract":"Facet engineering has emerged as an effective strategy for enhancing photocatalytic performance by tailoring the surface atomic configurations and electronic structures of semiconductors. Although numerous studies have demonstrated the remarkable advantages of facet-engineered photocatalysts, existing reviews mainly focus on specific material systems or application performance, lacking a unified perspective that connects facet-dependent structural features with photocatalytic functionality across multiple scales. Herein, we adopt a surface-microenvironment perspective to bridge this gap, establishing an integrated framework that links crystal facets, charge-carrier dynamics, interfacial reactions, and photocatalytic selectivity. Within this hierarchical scheme, facet-dependent electronic microenvironments govern chargecarrier dynamics; the resulting charge microenvironments, in turn, regulate the reactive microenvironments that ultimately determine photocatalytic activity and selectivity. Representative photocatalytic systems are analyzed to extract general structure-activity relationships, and synergistic strategies that integrate facet engineering with complementary modulation approaches are critically discussed. We further highlight emerging opportunities-particularly operando characterization and machine-learning-driven predictive design-to chart a path toward rational facet engineering. By offering a coherent understanding that spans from surface-structure regulation to reaction control, this review provides guidance for the rational design of next-generation photocatalysts.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"12 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facet-defined Ni-MOL/ZnInS interfaces enable built-in-field-assisted S-scheme photocatalytic H evolution

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta06299g

Haitao Li,Shuangling Xiao,Rong Li,Jian-Ping Zou,Peter Kelly,Xuxing Chen

{"title":"Facet-defined Ni-MOL/ZnInS interfaces enable built-in-field-assisted S-scheme photocatalytic H evolution","authors":"Haitao Li,Shuangling Xiao,Rong Li,Jian-Ping Zou,Peter Kelly,Xuxing Chen","doi":"10.1039/d6ta06299g","DOIUrl":"https://doi.org/10.1039/d6ta06299g","url":null,"abstract":"Understanding how crystallographically defined surface structures regulate interfacial charge transfer is essential for the rational design of energy-related photocatalytic materials. Herein, Ni-based metal–organic layer (Ni-MOL) nanosheets with preferentially exposed (010) and (100) facets were coupled with ZnIn2S4 nanosheets to construct facet-defined 2D/2D S-scheme heterojunctions for photocatalytic H2 evolution. The complementary PXRD features of Ni-MOL-010 and Ni-MOL-100, including the absence or strong suppression of the corresponding facet-related diffraction peaks, establish a composition-comparable platform for evaluating facet-dependent interface effects. Surface-sensitive UPS, KPFM, XPS, and Mott–Schottky analyses reveal that Ni-MOL-100 produces a larger surface electronic mismatch with ZnIn2S4 than Ni-MOL-010, leading to stronger interfacial band bending and a larger BIEF-related charge-transfer driving force. As a result, N100-1/ZIS achieves an H2 evolution rate of 87.86 mmol g−1 h−1 and an AQY of 21.6% at 350 nm, both higher than those of N010-1/ZIS. In situ irradiated XPS and EPR spectroscopy further support a facet-regulated S-scheme pathway, in which the stronger interfacial electronic response of N100/ZIS promotes directional charge migration and preserves high-energy electrons on ZnIn2S4 for proton reduction. This work identifies facet-dependent surface electronic alignment as a materials-chemistry descriptor for regulating built-in-field-assisted charge transfer in 2D/2D photocatalytic heterojunctions.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"82 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controlling Strontium Segregation to Unlock Performance and Durability in Solid Oxide Cell Oxygen Electrodes

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta06378k

Natasha Di Benedetto,Antonio Maria Asensio,Juan de Dios Sirvent,Gwilherm Kerherve,Sandra Benter,Sivakkumaran Sukumaran,Kosova Kreka,Lourenço Serra,Federico Baiutti,Julie Villanova,Stephen J Skinner,Marc Torrell,Albert Tarancon

{"title":"Controlling Strontium Segregation to Unlock Performance and Durability in Solid Oxide Cell Oxygen Electrodes","authors":"Natasha Di Benedetto,Antonio Maria Asensio,Juan de Dios Sirvent,Gwilherm Kerherve,Sandra Benter,Sivakkumaran Sukumaran,Kosova Kreka,Lourenço Serra,Federico Baiutti,Julie Villanova,Stephen J Skinner,Marc Torrell,Albert Tarancon","doi":"10.1039/d6ta06378k","DOIUrl":"https://doi.org/10.1039/d6ta06378k","url":null,"abstract":"Understanding and controlling surface-driven degradation is critical to unlocking the performance and durability of oxygen electrodes in solid oxide cells. As a dominant degradation mechanism, strontium surface segregation in La0.6Sr0.4Co0.2Fe0.8O3-δ leads to the formation of insulating secondary phases that progressively impair electrochemical activity and long-term stability. Here, targeted Mn substitution on the B-site effectively suppresses strontium segregation in porous La0.6Sr0.4Co0.2Fe0.8O3-δ-based oxygen electrodes, enabling simultaneous improvement of electrochemical performance and durability under realistic solid oxide fuel cell conditions, reaching power densities of 1.2 W cm−2 at 0.7 V and 750 °C for La0.6Sr0.4Co0.18Fe0.72Mn0.1O3-δ. These findings demonstrate that controlling surface chemical evolution is key to achieving durable, high-performance oxygen electrodes. Multiscale surface and bulk characterisation using low-energy ion scattering, X-ray photoelectron spectroscopy, and nano-X-ray fluorescence shows that Mn incorporation stabilises lattice-associated strontium, reduces the accumulation of Sr-rich surface species, and mitigates long-range elemental redistribution during ageing. These effects collectively suppress resistive secondary phase formation, preserve active oxygen exchange sites and account for the enhanced long-term electrochemical stability. Overall, these results establish a direct link between compositional engineering, strontium segregation control and electrochemical durability in porous oxygen electrodes, demonstrating that intermediate Mn substitution provides a practical strategy for designing high-performance, durable oxygen electrodes for solid oxide cells.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"34 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Golden competition states in Butler–Volmer kinetics: exact asymmetry correction and a formal consistency bound 巴特勒-沃尔默动力学中的黄金竞争状态：精确的不对称校正和正式的一致性界

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2026-10-20 DOI: 10.1039/d6ta07464b

Bi-Shuang Chen,Huayang Cai

{"title":"Golden competition states in Butler–Volmer kinetics: exact asymmetry correction and a formal consistency bound","authors":"Bi-Shuang Chen,Huayang Cai","doi":"10.1039/d6ta07464b","DOIUrl":"https://doi.org/10.1039/d6ta07464b","url":null,"abstract":"The recently proposed golden overpotential provides a characteristic reference point for symmetric Butler-Volmer (BV) kinetics, but its utility is critically limited by the assumption of a transfer coefficient α = 1/2. Deviations introduce systematic errors in exchange-current estimation and leave discrepancies beyond α-adjustment unexplained. Here, we overcome this limitation by showing that the golden reference is fundamentally geometric, not amplitude-specific. Resolving BV kinetics into positive anodic/cathodic channels recasts the golden overpotential as an invariant competition state. Kinetic asymmetry preserves this normalized state while rescaling the current magnitude, enabling exact branch-aware correction of the golden-current estimate and establishing a bounded admissibility window (0.618-1.618) for deviations solely attributable to α-asymmetry. Deviations outside this window signal additional interfacial physics or model inadequacy. This framework thus transforms the golden overpotential from a symmetric reference into a general diagnostic criterion, quantitative correction principle, and falsifiable test for electrochemical materials kinetics.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"11 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0