Journal of Electroanalytical Chemistry最新文献_第2页

Transforming zinc production waste into high-performance core-shell electrocatalysts for sustainable hydrogen production 将锌生产废料转化为高性能核壳电催化剂，用于可持续制氢

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-03 DOI: 10.1016/j.jelechem.2025.119452

Hamed Mousavi , Morteza Saghafi Yazdi , Davood Moradkhani , Mohammad Abedini Mohammadi

{"title":"Transforming zinc production waste into high-performance core-shell electrocatalysts for sustainable hydrogen production","authors":"Hamed Mousavi , Morteza Saghafi Yazdi , Davood Moradkhani , Mohammad Abedini Mohammadi","doi":"10.1016/j.jelechem.2025.119452","DOIUrl":"10.1016/j.jelechem.2025.119452","url":null,"abstract":"<div><div>In the context of urgent global efforts to mitigate the depletion of natural resources, this study presents a pioneering approach to utilizing hot filter cake waste from zinc production as a source of secondary raw materials (SMRs) for the synthesis of hydrogen evolution reaction (HER) electrocatalysts. The waste, containing 8–20 % zinc along with valuable metals such as cobalt and manganese, poses significant environmental hazards due to its toxic constituents. Our innovative process entails three stages of solvent extraction to recover zinc, cobalt, and manganese from this waste, thereby addressing both resource recovery and environmental remediation. We report the novel application of this waste material for the synthesis of core-shell electrocatalysts, NF@Mn-Co@CoSe and NF@Zn-Mn-Co@CoSe, through an electrodeposition method on nickel foam. The performance of these synthesized electrocatalysts was rigorously evaluated in a 1 M KOH solution for hydrogen production. Remarkably, the incorporation of CoSe structures on Zn-Mn-Co and Mn-Co significantly enhanced the electrochemically active surface area, resulting in exceptional electrocatalytic activity. Specifically, the micro-nano structures Zn-Mn-Co@CoSe and Mn-Co@CoSe exhibited overpotentials of only 144 mV and 122 mV, respectively, to achieve a current density of 10 mA cm<sup>−2</sup>. This work not only establishes a novel strategy for designing and synthesizing HER catalysts from recycled elements but also contributes to environmental protection by preventing the release of toxic heavy metals into nature. By transforming waste into a clean and renewable energy resource, our research exemplifies a sustainable approach to energy production and waste management.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119452"},"PeriodicalIF":4.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-assisted synthesis of Ce·La-Hydroxides based binary composite for solid state asymmetric supercapacitor 微波辅助合成固体非对称超级电容器用Ce·la -氢氧化物二元复合材料

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-03 DOI: 10.1016/j.jelechem.2025.119460

Dadaso Mohite , P.E. Lokhande , Udayabhaskar Rednam , Bandar Ali Al-Asbahi , Aziz A. Aziz

{"title":"Microwave-assisted synthesis of Ce·La-Hydroxides based binary composite for solid state asymmetric supercapacitor","authors":"Dadaso Mohite , P.E. Lokhande , Udayabhaskar Rednam , Bandar Ali Al-Asbahi , Aziz A. Aziz","doi":"10.1016/j.jelechem.2025.119460","DOIUrl":"10.1016/j.jelechem.2025.119460","url":null,"abstract":"<div><div>The growing demand for reliable energy storage in portable electronics, electric vehicles, and smart grid networks has driven rapid progress in supercapacitor research. Although supercapacitors are valued for their high-power output, excellent cycle life, and rapid charge–discharge response, their limited energy density continues to be a key challenge. To overcome this issue the development of novel electrode materials is inevitable. Thereby, considering the potential of rare-earth metal hydroxides, cerium–lanthanum hydroxide (Ce·La(OH)₃) binary composite was synthesized through a microwave-assisted co-precipitation technique, providing a rapid and scalable preparation route. The synergistic incorporation of Ce and La enhanced redox activity and structural stability, thereby improving electrochemical performance. The single-electrode system based on this composite delivered a remarkable specific capacitance of 502C g<sup>−1</sup> at 1 A g<sup>−1</sup> along with strong rate capability. Furthermore, in asymmetric device assembly, the composite achieved an energy density of 23 Wh kg<sup>−1</sup> and a power density of 750 W kg<sup>−1</sup>. Long-term cycling tests demonstrated outstanding durability, maintaining 95 % of capacitance even after 10,000 cycles. These results highlight Ce·La(OH)₃ as a highly stable and efficient electrode candidate for next-generation energy storage applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119460"},"PeriodicalIF":4.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The strong-weak adsorption pair motif of cuFe bimetallic composite as an efficient catalyst for CO2 RR toward the C2product ethylene and ethanol cuFe双金属复合材料的强-弱吸附对基序作为CO2向CO2产物乙烯和乙醇的有效催化剂

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-03 DOI: 10.1016/j.jelechem.2025.119450

Yiman Kang , Honglin Zhu , Miao Shui

{"title":"The strong-weak adsorption pair motif of cuFe bimetallic composite as an efficient catalyst for CO2 RR toward the C2product ethylene and ethanol","authors":"Yiman Kang , Honglin Zhu , Miao Shui","doi":"10.1016/j.jelechem.2025.119450","DOIUrl":"10.1016/j.jelechem.2025.119450","url":null,"abstract":"<div><div>Currently, with the proposal of the dual‑carbon goal, the conversion of carbon dioxide has become a hot topic. Electro-catalysis occupies a prominent position in various catalytic technologies. Carbon dioxide reduction to C<sub>2</sub> product or C<sub>2</sub>+ product is of great importance to the deep utilization of carbon dioxide. However, it is prone to disadvantages such as slow speed, low selectivity, and high over potential toward C<sub>2</sub>+ products. Here, a neighboring strong weak metal atom pair strategy is proposed to design a new bimetallic catalyst aiming at significantly reduce the over potential of C<sub>2</sub>+ products. The strong (Fe) and weak (cu) motif owns a negligible energy barrier of 0.06 eV from CO<sub>2</sub> to surface adsorbed CO molecule. Afterwards, it significantly reduces the energy barrier of the C<img>C coupling process to 0.48 eV and makes the limiting potential (LP) of the reduction to ethylene 0.28 eV and 0.49 eV to ethanol. The high efficiency of this neighboring strong weak metal atom pair strategy offers new guidance to the electro-catalysis of C1 compound to C<sub>2</sub>+ products</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119450"},"PeriodicalIF":4.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Next generation nanomaterials for electrosynthesis of 2,5-furandicarboxylic acid from 5-(hydroxymethyl)furfural: approaches, mechanisms, and challenges 5-（羟甲基）糠醛电合成2,5-呋喃二甲酸的新一代纳米材料：方法、机制和挑战

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-02 DOI: 10.1016/j.jelechem.2025.119449

Gaurav Yadav , Nidhi Yadav , Saptarshi Roy , Prateek Shukla , Ramesh Kumar Sharma , Ganga Ram Chaudhary , Suman Singh , Suddhasatwa Basu , Md. Ahmaruzzaman

{"title":"Next generation nanomaterials for electrosynthesis of 2,5-furandicarboxylic acid from 5-(hydroxymethyl)furfural: approaches, mechanisms, and challenges","authors":"Gaurav Yadav , Nidhi Yadav , Saptarshi Roy , Prateek Shukla , Ramesh Kumar Sharma , Ganga Ram Chaudhary , Suman Singh , Suddhasatwa Basu , Md. Ahmaruzzaman","doi":"10.1016/j.jelechem.2025.119449","DOIUrl":"10.1016/j.jelechem.2025.119449","url":null,"abstract":"<div><div>Over the past few decades, advancements in electrochemical technologies have significantly improved energy production, storage, material surface modification, and environmental cleanup. One promising application is the electrochemical oxidation (ECO) of 5-hydroxymethylfurfural (HMF), a key biomass-derived platform chemical, into 2,5-furandicarboxylic acid (FDCA). FDCA, a valuable monomer for producing polyethylene furanoate (PEF), offers a sustainable alternative to traditional chemo-catalytic methods, contributing to biomass valorization and the development of biorefineries. This review explores the potential of nanomaterials for the electrosynthesis of FDCA from HMF. It covers (1) electrocatalysts such as metal-organic frameworks (MOFs), metal oxides, layered double hydroxides (LDHs), carbon-based materials, and metal sulfides; (2) the mechanisms driving FDCA electrosynthesis; (3) kinetics and thermodynamic factors; (4) challenges in scaling up to pilot production; and (5) a SWOT analysis, identifying strengths, weaknesses, opportunities, and threats for advancing FDCA electrocatalytic processes. Additionally, this review highlights key obstacles and opportunities in the electrochemical conversion of HMF. It provides valuable insights for advancing the development of efficient electrocatalysts for HMF conversion, offering critical guidance for future research and innovation in this field.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119449"},"PeriodicalIF":4.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coordination-assisted pyrolysis of Ni complexes for highly dispersed catalysts with enhanced CO2 electroreduction selectivity 高分散催化剂配位辅助热解镍配合物的CO2电还原选择性增强

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-02 DOI: 10.1016/j.jelechem.2025.119451

Xiao-Jie Jiang , Yi-Hong Liu , Ning-Ya Wang, Hui-Li Guo, Li-Xiao Wang, Jing-Yu Pang, Dong-Bin Dang, Yan Bai

{"title":"Coordination-assisted pyrolysis of Ni complexes for highly dispersed catalysts with enhanced CO2 electroreduction selectivity","authors":"Xiao-Jie Jiang , Yi-Hong Liu , Ning-Ya Wang, Hui-Li Guo, Li-Xiao Wang, Jing-Yu Pang, Dong-Bin Dang, Yan Bai","doi":"10.1016/j.jelechem.2025.119451","DOIUrl":"10.1016/j.jelechem.2025.119451","url":null,"abstract":"<div><div>In this work, a coordination-assisted pyrolysis strategy using 4,4′-bipyridine as the molecular ligand was developed to coordinate Ni<sup>2+</sup> ions, successfully loading highly dispersed and uniform nanoscale nickel particles (Ni-NC) on nitrogen-doped carbon nanotubes. Compared with the traditional large-sized nickel nanoparticle catalyst (Ni@N), Ni-NC exhibited significantly enhanced activity and selectivity in the electrochemical carbon dioxide reduction reaction. Ni-NC achieves a high Faradaic efficiency for CO (FE<sub>CO</sub>) of 95.6 % at −0.87 V vs. RHE and maintains excellent electrochemical stability for over 8 h in an H-cell. In a flow cell, Ni-NC delivers a current density of −207 mA cm<sup>−2</sup> at −0.9 V, and reaches 99 % FE<sub>CO</sub> at −0.5 V vs. RHE. Notably, FE<sub>CO</sub> remains above 90 % across a wide potential window (−0.4 to −0.8 V vs. RHE) and a high FE<sub>CO</sub> above 90 % during continuous 25 h operation at −0.5 V vs. RHE. This work demonstrates an effective ligand-directed strategy for preparing highly dispersed metal-based catalysts with enhanced CO<sub>2</sub> electroreduction performance.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119451"},"PeriodicalIF":4.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-capacitance AC-NiMo LDH composite electrode as redox mediator for efficient decoupled water electrolysis 高电容AC-NiMo LDH复合电极作为高效解耦水电解的氧化还原介质

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-01 DOI: 10.1016/j.jelechem.2025.119447

Jia Lu , Rongcheng Wan , Suili Shi , Jixu Han , Yanbing Li , Baichuan He , Zhiliang Jin , Guorong Wang

{"title":"High-capacitance AC-NiMo LDH composite electrode as redox mediator for efficient decoupled water electrolysis","authors":"Jia Lu , Rongcheng Wan , Suili Shi , Jixu Han , Yanbing Li , Baichuan He , Zhiliang Jin , Guorong Wang","doi":"10.1016/j.jelechem.2025.119447","DOIUrl":"10.1016/j.jelechem.2025.119447","url":null,"abstract":"<div><div>Layered double hydroxides (LDHs), serving as an efficient redox mediator, has exhibit distinct advantages in the decoupled electrolytic water splitting hydrogen production system. However, its intrinsic low conductivity poses a significant challenge to its broader application. Here, a composite AC-NiMo LDH redox mediator (RM) was synthesized using activated carbon as the growth substrate through a hydrothermal synthesis method involving water. Electrochemical testing shows that the AC-NM LDH10 has excellent performance with a specific capacitance of 676.3 F g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup> (is 2.28 times that of NiMo LDH). In addition, this composite RM electrode exhibited a high buffering capacity for 400 s under 2 mA cm<sup>−2</sup> during the decoupled H<sub>2</sub>/O<sub>2</sub> evolution. In the conventional coupled system, the necessary input voltage of 1.53 V was separated into two lower ones, 1.44/0.29 V for H<sub>2</sub>/O<sub>2</sub> evolutions in the decoupled system, respectively. Furthermore, after 60 cycles of testing, there was almost no change in its cell voltage. This architecture reduces total energy consumption relative to conventional coupled systems, establishing a technologically viable pathway for safe, high-efficiency hydrogen production</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119447"},"PeriodicalIF":4.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable self-doping engineering: Transforming pulping black liquor into hierarchical sulfur-doped porous carbon architectures for advanced supercapacitor electrodes 可持续自掺杂工程：将制浆黑液转化为先进超级电容器电极的分层掺硫多孔碳结构

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-01 DOI: 10.1016/j.jelechem.2025.119448

Tong Lei , Yuting Wang , Huijie Wang , Runxian Wang , Lei Ji , Chao Liu , Huining Xiao

{"title":"Sustainable self-doping engineering: Transforming pulping black liquor into hierarchical sulfur-doped porous carbon architectures for advanced supercapacitor electrodes","authors":"Tong Lei , Yuting Wang , Huijie Wang , Runxian Wang , Lei Ji , Chao Liu , Huining Xiao","doi":"10.1016/j.jelechem.2025.119448","DOIUrl":"10.1016/j.jelechem.2025.119448","url":null,"abstract":"<div><div>The pore structure and specific surface area of electrode materials are critical to supercapacitor performance. Herein, sulfur-doped KOH-activated alkali lignin-based porous carbon (KALC) with a high specific surface area is synthesized from alkali lignin (AL), a byproduct of sulfate pulping, via pre-oxidation and KOH-activated carbonization. The pre-oxidation step enhances the carbonization efficiency and structural stability. The resulting KALC exhibits a predominantly microporous structure with a specific surface area of 1887.4 m<sup>2</sup>/g and a pore volume of 0.792 cm<sup>3</sup>/g, significantly surpassing those of directly carbonized alkali lignin-based carbon (ALC). Electrochemical tests demonstrate that KALC achieves a specific capacitance of 396 F/g at 0.8 A/g and retains 95 % capacitance over 5000 cycles in a symmetric supercapacitor. This work presents a simple and sustainable strategy for converting industrial lignin into high-performance heteroatom-doped carbon materials for energy storage.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119448"},"PeriodicalIF":4.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting oxygen evolution reaction at hydrothermally synthesized V-MXene interface with Iron Pthalocynaine 水热合成V-MXene界面与酞菁铁催化析氧反应

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-08-30 DOI: 10.1016/j.jelechem.2025.119437

Anum Iqbal , Hamzeh Sabouni , Nasser M. Hamdan

{"title":"Boosting oxygen evolution reaction at hydrothermally synthesized V-MXene interface with Iron Pthalocynaine","authors":"Anum Iqbal , Hamzeh Sabouni , Nasser M. Hamdan","doi":"10.1016/j.jelechem.2025.119437","DOIUrl":"10.1016/j.jelechem.2025.119437","url":null,"abstract":"<div><div>Oxygen evolution reaction (OER) is a pivotal electrochemical reaction process for many renewable energy technologies. Due to the sluggish OER kinetics, designing and fabricating efficient low-cost non-precious metal catalysts is one of the crucial but very challenging steps to develop electrochemically active and stable OER electrocatalyst. Conventionally, MXenes are prepared from hydrofluoric (HF) acid but the acute toxicity of HF acid impedes the wide utilization in energy related applications<em>.</em> Herein, V<sub>2</sub>C MXene is prepared through hydrothermal low level of danger HF free synthetic approach and synergistically coupled with Iron Phthalocyanine electrocatalyst. Moreover, the better OER efficiency of HF free hydrothermally synthesized MXene (with an overpotential of 373 mV) is described as compared to HF based MXene of OER overpotential of 384 mV at the current density of 10 mA/cm<sup>2</sup>. The inserted HT MX sheets within the matrix of FePc rods exhibited the desired crystallinity of hybrid. The XPS results suggest a synergistic chemical interaction between MX sheets and FePc molecules that modifies the electronic structure of the composite ensuring reduced charge transfer resistance. Consequently, the FePc:HT MX has shown appreciable OER electrocatalytic activity with an overpotential of 366 mV at a current density of 50 mA cm<sup>−2</sup>, Tafel slope of 5.36 mV dec<sup>−1</sup> in 1 M KOH. Besides, the significant interaction between metallic centers and MXene support prevent detachment or agglomeration of active centers providing maximum interaction with the electrolytic ions, quick ionic OH<sup>−</sup> transportation, speedy and stable electron transfer thus ensure the long-term stability of composite during 50 h continuous operation of OER. In essence, this study features a facile approach for the hydrothermally synthesized MX sheets-based composites as advanced electrocatalysts for renewable energy applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"996 ","pages":"Article 119437"},"PeriodicalIF":4.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144931682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

1924 – The model of Butler 1924年，巴特勒的模特

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-08-30 DOI: 10.1016/j.jelechem.2025.119445

Vladimir D. Ivanov

{"title":"1924 – The model of Butler","authors":"Vladimir D. Ivanov","doi":"10.1016/j.jelechem.2025.119445","DOIUrl":"10.1016/j.jelechem.2025.119445","url":null,"abstract":"<div><div>The year 1924, with the publication of Butler's series of papers on electrochemical equilibrium, became a milestone in the history of electrochemistry. Although the goal of these articles was equilibrium, they ultimately had a tremendous impact on electrochemical kinetics. It is ironic, but it seems that in writing down his kinetic expressions from general considerations, Butler did not even bother to look at the available data in this field. This violation of scholarly tradition seems to have affected the reception of Butler's work. The real impact of Butler's articles on his contemporaries is difficult to assess today. However, it is possible to trace the chain of influence from Butler through Bowden to Volmer and Erdey-Grúz. This suggests that they wrote their seminal work not only under the undoubted influence of Bowden but also of Butler.</div><div>Butler enriched electrochemical kinetics with a number of new approaches, although in his work kinetics was only a tool for validating equilibrium. He was the first to take into account, albeit in a semi-quantitative way, the effect of the potential on the rate of the process. Furthermore, it was Butler who introduced the concept of dynamic equilibrium into electrochemical kinetics.</div><div>In order to better understand the new concepts introduced by Butler, the electrochemical ideas of the time are discussed in detail: the Nernst-Brunner model of diffusion processes, the Jahn-Schönrock concept, based on the Nernst equation, and the Haber model of non-electrolyte reduction.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119445"},"PeriodicalIF":4.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new application of natural rock asphalt in lithium-ion batteries as a novel coating material for natural flake graphite anode 天然岩石沥青作为天然片状石墨阳极的新型涂层材料在锂离子电池中的新应用

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-08-30 DOI: 10.1016/j.jelechem.2025.119446

Rui Cao , Zhengwei Li , Shiyong Sun , Sen Lin , Ke Wang , Jin Liu , Rui Lv , Jianwu Wen

{"title":"A new application of natural rock asphalt in lithium-ion batteries as a novel coating material for natural flake graphite anode","authors":"Rui Cao , Zhengwei Li , Shiyong Sun , Sen Lin , Ke Wang , Jin Liu , Rui Lv , Jianwu Wen","doi":"10.1016/j.jelechem.2025.119446","DOIUrl":"10.1016/j.jelechem.2025.119446","url":null,"abstract":"<div><div>Rock asphalt, a naturally occurring bitumen, demonstrates significant potential as an eco-friendly carbon precursor due to its intrinsically high carbon content, elevated softening point, chemical inertness, and non-toxic characteristics. This study introduced innovative application of Longmen Mountain rock asphalt from Sichuan, China – a sustainable resource with high carbon content, softening point, and abundant reserves – as a carbon precursor for coating spherical natural flake graphite. Through vacuum impregnation and carbonization across a range of coating contents (0–11 wt%) and temperatures (500–1100 °C), an optimal core-shell structured composite was achieved. The sample coated with 5 wt% RA‑carbon and carbonized at 1100 °C exhibited significantly improved electrochemical properties. The initial Coulombic efficiency increased from 88.75 % to 89.69 %, and the capacity retention after 50 cycles improved from 86.56 % to 91.41 %. Electrochemical impedance spectroscopy confirmed superior charge transfer kinetics, showing reduced interfacial resistance and polarization across 0.2–1C current densities. Structural analyses (XRD, Raman) indicated that the coating effectively reduced surface defects in graphite. This work provides a novel material for developing high-performance lithium-ion battery anodes while creating value-added applications for natural asphalt resources in advanced energy storage systems. The methodology bridges material sustainability with electrochemical optimization, offering insights for scalable production of modified graphite electrodes.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"996 ","pages":"Article 119446"},"PeriodicalIF":4.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144931704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0