Journal of Electroanalytical Chemistry最新文献

筛选
英文 中文
OFF–ON stirring potentiometry with solvent polymeric membrane ion-selective electrodes: A theory-guided approach to foreign ions
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118828
José Manuel Olmos , José Antonio González-Franco , Angela Molina , Joaquín Ángel Ortuño , Eduardo Laborda
{"title":"OFF–ON stirring potentiometry with solvent polymeric membrane ion-selective electrodes: A theory-guided approach to foreign ions","authors":"José Manuel Olmos ,&nbsp;José Antonio González-Franco ,&nbsp;Angela Molina ,&nbsp;Joaquín Ángel Ortuño ,&nbsp;Eduardo Laborda","doi":"10.1016/j.jelechem.2024.118828","DOIUrl":"10.1016/j.jelechem.2024.118828","url":null,"abstract":"<div><div>The response of ion-selective electrodes (ISEs) towards a foreign ion is comprehensively investigated as a function of the nature and concentration of the ion, and of the mass transport conditions in the outer solution. Notably, a striking transient potential drift is evidenced by sheer activation of stirring in an initially quiescent solution of the foreign ion, both in the absence and presence of the primary ion. This phenomenon is rationalized in terms of the ion exchange at the outer membrane side coupled to the mass transfer of ions. This has been modelled through a novel theoretical treatment of the corresponding time-dependent mass transport problem, leading to simple closed-form expressions for the membrane potential and for the interfacial ion concentrations in the unstirring and stirring periods. The theoretical predictions are corroborated experimentally by monitoring the potential of a nitrate ISE exposed to ions of very different affinity towards the membrane (tetraphenylborate, perchlorate and chloride) before and after switching on the agitation of the solution. Such OFF-ON stirring program enables the study of foreign ions, even simultaneously with the determination of the primary species, by the joint analysis of the potentials before and after the activation of the stirring.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118828"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Selenium element doping to improve initial irreversibility of C/SiOx anode in lithium-ion batteries
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118878
Jiahao Zhao , Lankun Shi , Zhongmin Lang , Guixiao Jia , Dawei Lan , Yongfu Cui , Jinlong Cui
{"title":"Selenium element doping to improve initial irreversibility of C/SiOx anode in lithium-ion batteries","authors":"Jiahao Zhao ,&nbsp;Lankun Shi ,&nbsp;Zhongmin Lang ,&nbsp;Guixiao Jia ,&nbsp;Dawei Lan ,&nbsp;Yongfu Cui ,&nbsp;Jinlong Cui","doi":"10.1016/j.jelechem.2024.118878","DOIUrl":"10.1016/j.jelechem.2024.118878","url":null,"abstract":"<div><div>To address the challenge of enhancing the initial Coulombic efficiency (ICE) of C/SiO<sub>x</sub> anode in lithium-ion batteries (LIBs) and facilitating their widespread application, we developed porous C/SiO<sub>x</sub> by carbonizing and activating rice husks with H<sub>3</sub>PO<sub>4</sub> as activator. Subsequently, Se was introduced into the porous C/SiO<sub>x</sub> and deposited both the surface and inner pore walls in order to produce Se@C/SiO<sub>x</sub> through a solid-phase sublimation method. During the initial discharge process, Se contained within the porous C/SiO<sub>x</sub> reacts with Li to form Li<sub>2</sub>Se, which inhibits the formation of Li<sub>2</sub>O and consequently reduces the thickness of the solid electrolyte interphase (SEI) film. This process facilitates easier diffusion of Li<sup>+</sup> through SEI films, enhances ICE, as well as electrical and ionic conductivities, and improves rate performance. After introduction of Se, the ICE of porous C/SiO<sub>x</sub> electrode rose from 57.02 % to 82.37 %. Additionally, the reversible capacity experienced an increase from 435 mAh/g to 844.4 mAh/g at a current density of 0.1 A/g. Even when subjected to a higher current density of 2.0 A/g, it was able to maintain a significant specific capacity of 574 mAh/g after undergoing 700 cycles.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118878"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132523","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
Synthesis of coumarin derivatives as levelers for Through-Hole electroplating of copper in PCBs and a study on leveling mechanism of optimized leveler
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118851
Jingyu Xie , Xinpeng Yin , Fengyan Lu, Xuyang Li, Limin Wang
{"title":"Synthesis of coumarin derivatives as levelers for Through-Hole electroplating of copper in PCBs and a study on leveling mechanism of optimized leveler","authors":"Jingyu Xie ,&nbsp;Xinpeng Yin ,&nbsp;Fengyan Lu,&nbsp;Xuyang Li,&nbsp;Limin Wang","doi":"10.1016/j.jelechem.2024.118851","DOIUrl":"10.1016/j.jelechem.2024.118851","url":null,"abstract":"<div><div>In this paper, five coumarin-based quaternary ammonium salts, including a new highly efficient through-hole (TH) electroplating leveler, were synthesized from environmentally harmless coumarin compounds. The inhibitory properties of five coumarin-based quaternary ammonium salts were tested by electrochemical method, leading to the selection of the optimal leveler (<em>C</em>2). The adsorption capacity, adsorption state and adsorption sites of different coumarin-based quaternary ammonium salts on copper surface were systematically analyzed, and the reasons for the different inhibition capacity of five coumarin-based quaternary ammonium salts with different molecular structures were explained. The effect of <em>C</em>2 content on throwing power (TP) was studied, when <em>C</em>2 content was only 0.6 ppm, TP value was greater than 100 %. The adsorption behavior of <em>C</em>2 on copper cathode and the interaction between <em>C</em>2 and other additives were studied by the galvanostatic measurements (GMs). SEM and XRD tests were conducted to analyze the effects of different amounts of <em>C</em>2 on the copper plating surface.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118851"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132527","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
Retraction notice to “Evaluating the potential of graphene-like boron nitride as a promising cathode for Mg-ion batteries” [J. Electroanal. Chem. 917 (2022) 116413]
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118832
R. Sivaraman , Indrajit Patra , Maria Jade Catalan Opulencia , Rafid Sagban , Himanshu Sharma , Abduladheem Turki Jalil , Abdol Ghaffar Ebadi
{"title":"Retraction notice to “Evaluating the potential of graphene-like boron nitride as a promising cathode for Mg-ion batteries” [J. Electroanal. Chem. 917 (2022) 116413]","authors":"R. Sivaraman ,&nbsp;Indrajit Patra ,&nbsp;Maria Jade Catalan Opulencia ,&nbsp;Rafid Sagban ,&nbsp;Himanshu Sharma ,&nbsp;Abduladheem Turki Jalil ,&nbsp;Abdol Ghaffar Ebadi","doi":"10.1016/j.jelechem.2024.118832","DOIUrl":"10.1016/j.jelechem.2024.118832","url":null,"abstract":"","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118832"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132466","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 graphene field-effect transistor sensor based on Au-S bond self-assembly for highly selective detection of l-cysteine in chicken soup
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2025.118943
Xuanxuan Liu , Qingliu Wu , Yong Cao , Lu Wang , Hao Qu , Lei Zheng
{"title":"A graphene field-effect transistor sensor based on Au-S bond self-assembly for highly selective detection of l-cysteine in chicken soup","authors":"Xuanxuan Liu ,&nbsp;Qingliu Wu ,&nbsp;Yong Cao ,&nbsp;Lu Wang ,&nbsp;Hao Qu ,&nbsp;Lei Zheng","doi":"10.1016/j.jelechem.2025.118943","DOIUrl":"10.1016/j.jelechem.2025.118943","url":null,"abstract":"<div><div><span>l</span>-cysteine plays a vital role in both the nutritional value and taste profile of chicken broth, underscoring the necessity for an accurate and sensitive approach to detect and measure <span>l</span>-cysteine at minute concentrations. A reliable method for identifying trace amounts of <span>l</span>-cysteine is imperative for ensuring the quality and authenticity of chicken broth products. Such a technique would enable precise control over the levels of this crucial amino acid, ultimately contributing to the overall consumer satisfaction and product consistency. This research focused on developing an SGGT-based sensor for the rapid detection of <span>l</span>-cysteine by leveraging the self-assembly of <span>l</span>-cysteine molecules on the surface of the Au gate electrode to form covalent Au-S bonds. This process triggers a rearrangement of charge carriers on the surface, leading to a shift in the electric double layer potential. Through field effect amplification, a substantial channel current response is generated. This innovative sensing mechanism effectively addresses the selectivity challenges of SGGT in complex liquid environments, significantly enhancing its ability to detect <span>l</span>-cysteine. Subsequently, the study examined three different gate voltages, with the optimal voltage achieving a detection limit of 10 nM (1.21 ng/mL) and a linear detection range of 30 nM – 3 μM. Moreover, the sensor exhibits highly selective detection of <span>l</span>-cysteine in chicken broth, demonstrating an 85.87 % recovery rate. The innovative technology demonstrates encouraging prospects for real-world usage in the identification of <span>l</span>-cysteine in food items or as a biomarker. Its capabilities offer a reliable method for detecting this amino acid, showcasing its versatility and potential impact on food safety and quality assessment.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"980 ","pages":"Article 118943"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143164225","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 high sensitive microbial photoelectrochemical sensor based on Cuprous oxide @ Titanium Dioxide/MXene for the selective detection of Staphylococcus aureus in polymicrobial environment
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118857
Babu Shobana , Kathirvel Renugadevi , Periakaruppan Prakash
{"title":"A high sensitive microbial photoelectrochemical sensor based on Cuprous oxide @ Titanium Dioxide/MXene for the selective detection of Staphylococcus aureus in polymicrobial environment","authors":"Babu Shobana ,&nbsp;Kathirvel Renugadevi ,&nbsp;Periakaruppan Prakash","doi":"10.1016/j.jelechem.2024.118857","DOIUrl":"10.1016/j.jelechem.2024.118857","url":null,"abstract":"<div><div>Early bacterial detection is vital for tackling health challenges, enabling prompt treatment and improving patient outcomes. <em>Staphylococcus aureus</em> (<em>S. aureus</em>), a common pathogen involved in skin and mucous membrane infections, chronic periodontal diseases, and exhibiting high antibiotic resistance, demands accurate identification for effective treatment. Traditional methods for detecting <em>S. aureus</em> are hindered by long processing times, low sensitivity, and potential false positives. While Polymerase Chain Reaction (PCR) is effective, it faces issues like contamination and variable DNA concentration. This study presents a new, rapid detection method using a photoelectrochemical (PEC) biosensor with a Cuprous oxide @Titanium dioxide/MXene (Cu<sub>2</sub>O@TiO<sub>2</sub>/MXene) nanocomposite on a glassy carbon electrode. The synthesized nanocomposite, characterized thoroughly, achieved a low detection limit (1 CFU mL<sup>−1</sup>) and a linear range (1 to 10 CFU mL<sup>−1</sup>). The sensor showed excellent selectivity, repeatability, and stability with potential applications in real time food samples, extending to healthcare by improving bacterial infection detection.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118857"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132436","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
Synergistic MoO2@Co3O4 electrocatalysts: A cost-effective approach for efficient alkaline water splitting using electrochemical process
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118831
Suchitra N. Sapakal , Mayur Gaikwad , Jin H. Kim , Anamika Kadam
{"title":"Synergistic MoO2@Co3O4 electrocatalysts: A cost-effective approach for efficient alkaline water splitting using electrochemical process","authors":"Suchitra N. Sapakal ,&nbsp;Mayur Gaikwad ,&nbsp;Jin H. Kim ,&nbsp;Anamika Kadam","doi":"10.1016/j.jelechem.2024.118831","DOIUrl":"10.1016/j.jelechem.2024.118831","url":null,"abstract":"<div><div>Efficient overall water splitting in alkaline electrolytes remains a critical target for various energy-related applications, necessitating the development of materials having potential of catalyzing hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) simultaneously with high venture and efficiency. This study focuses on the synthesis of affordable non-noble metal-based electrocatalysts using simple and time-efficient methods. Specifically, it highlights the development of MoO<sub>2</sub>, Co<sub>3</sub>O<sub>4</sub>, and MoO<sub>2</sub>@Co<sub>3</sub>O<sub>4</sub> composite catalysts fabricated via electrodeposition on stainless steel substrates. The synthesized composite materials demonstrated superior electrochemical performance, with the MoO<sub>2</sub>@Co<sub>3</sub>O<sub>4</sub> composite in a 1:2 M ratio exhibiting significantly enhanced catalytic activity and reduced overpotentials for overall water splitting. The catalyst shows OER and HER activity at 143 mV vs RHE and 177 mV vs RHE over-potentials, which is very low. Also, the catalyst exhibited excellent durability, maintaining stability for up to 23 h in alkaline electrolyte conditions. The synergistic interaction between molybdenum and cobalt oxides was found to facilitate both HER and OER, leading to improved catalytic efficiency at low overpotentials. This approach provides a promising pathway for the integration of robust, cost-effective electrocatalysts, critical for advancing sustainable energy technologies.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118831"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132441","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
Enhancing the oxygen evolution performance by introducing Pd-Cu alloy supported rod-like hollow titanium dioxide
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118844
Jing Wang , Mingying Zhao , Lei E , Dan Zhao , Chengyi Wang , Zhifeng Liu
{"title":"Enhancing the oxygen evolution performance by introducing Pd-Cu alloy supported rod-like hollow titanium dioxide","authors":"Jing Wang ,&nbsp;Mingying Zhao ,&nbsp;Lei E ,&nbsp;Dan Zhao ,&nbsp;Chengyi Wang ,&nbsp;Zhifeng Liu","doi":"10.1016/j.jelechem.2024.118844","DOIUrl":"10.1016/j.jelechem.2024.118844","url":null,"abstract":"<div><div>Electrocatalytic water splitting shows great potential for generating renewable and clean energy. However, its broader application is impeded by some critical factors such as the high cost of catalysts and the low energy efficiency and stability issues, especially for the oxygen evolution reaction (OER). In this study, a hollow rod-shaped TiO<sub>2-X</sub>-Pd<sub>3</sub>Cu catalyst with sufficient oxygen vacancies were synthesized using an alcohol-thermal method followed by hydrazine hydrate treatment. The hollow structure could greatly improve mass transfer while oxygen vacancies introduce more catalytic active sites. To further enhance the electrocatalytic activity, a series of palladium-copper (Pd-Cu) alloy with different ratios was loaded onto the TiO<sub>2-X</sub> substrates. According to the experimental results, TiO<sub>2-X</sub>-Pd<sub>3</sub>Cu demonstrated the highest OER activity with the lowest overpotential of 230 mV at 10 mA·cm<sup>−2</sup> and 599 mV at 100 mA·cm<sup>−2</sup>. This work highlights the potential of using defect-engineered TiO<sub>2-X</sub> combined with Pd-Cu alloys for cost-effective as efficient OER catalysts.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118844"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132442","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
S-N-doping TiO2@ MXene heterostructure in-situ derived from MXene frameworks as high‑rate anodes for Lithium/Sodium-ion batteries
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118833
Chenyu Wu , Xiuzhen Wang , Ying Zhu , Lei Dong , Jingjing Xu
{"title":"S-N-doping TiO2@ MXene heterostructure in-situ derived from MXene frameworks as high‑rate anodes for Lithium/Sodium-ion batteries","authors":"Chenyu Wu ,&nbsp;Xiuzhen Wang ,&nbsp;Ying Zhu ,&nbsp;Lei Dong ,&nbsp;Jingjing Xu","doi":"10.1016/j.jelechem.2024.118833","DOIUrl":"10.1016/j.jelechem.2024.118833","url":null,"abstract":"<div><div>Titanium dioxide (TiO<sub>2</sub>) shows promise as an anode material for Li/Na-ion batteries due to its low cost and good cycling stability. However, the limited rate capability and poor conductivity severely limit their practical application. Herein, the nitrogen-sulfur co-doping nano TiO<sub>2</sub> is in-situ constructed on the Ti<sub>3</sub>C<sub>2</sub>T<em><sub>x</sub></em> MXene substrate (SN-TiO<sub>2</sub>@MXene) via facile partial oxidation of MXene. The introduction of S-N heteroatoms, TiO<sub>2</sub>@MXene heterostructures and nanostructures can enhance electronic conductivity, improve ions diffusion kinetics and promote the contribution of pseudo-capacitance. Moreover, the employment of three-dimensional conductive layered MXene parent phase as a substrate material can not only construct the conductive network but also enhance the structural stability of the electrode. The SN-TiO<sub>2</sub>@MXene composite achieves an impressive reversible capacity of 306 mA/g after 1500 cycles at 500 mA/g, and 241.1 mAh/g after 2000 cycles even at a high current density of 2000 mA/g in LIBs. Furthermore, this electrode exhibits a discharge capacity of 105 mAh/g after 1000 cycles at 500 mA/g in SIBs. This study demonstrates that the three-dimensional layered SN-TiO<sub>2</sub>@MXene composites hold promising prospects as anode materials for ion batteries, and offer valuable insights for the fabrication of titanium matrix composites with exceptional electrochemical properties.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118833"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132448","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
Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-01-15 DOI: 10.1016/j.jelechem.2024.118856
J. Cencerrero , P. Sánchez , A. de Lucas-Consuegra , A.R. de la Osa , A. Romero
{"title":"Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media","authors":"J. Cencerrero ,&nbsp;P. Sánchez ,&nbsp;A. de Lucas-Consuegra ,&nbsp;A.R. de la Osa ,&nbsp;A. Romero","doi":"10.1016/j.jelechem.2024.118856","DOIUrl":"10.1016/j.jelechem.2024.118856","url":null,"abstract":"<div><div>This study presents the successful production of metal-free borocarbonitrides (BCN) based on graphene as carbon sources, and its application for hydrogen evolution reaction (HER) in alkaline medium (1 M KOH) via one-step pyrolysis. Synthesis parameters such as the temperature and calcination time were optimized in order to improve the electrocatalytic activity being 10 h and 900 °C the optimal conditions of calcination. These conditions generated a low oxygen content and a stable graphene-like structure doped with B and N. In-depth XPS analysis revealed the strong <em>N</em>-B bond formed during the calcination, allowing the creation of a stable and homogeneous B<img>C<img>N ternary material. The ratio of B:N were optimized obtaining for a ratio 0.5:40 the most active catalyst. This catalyst reached an overpotential at 10 mA cm<sup>−2</sup> of 295 mV in 1 M KOH after an activation under Linnear Sweep Voltammetry (LSV) and chronopotentiometry, which is close to that observed for a commercial 20 % Pt/C catalyst.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"977 ","pages":"Article 118856"},"PeriodicalIF":4.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132520","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信