Two-Dimensional Tantalum Carbo-Selenide for Hydrogen Evolution

IF 15.8 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
ACS Nano Pub Date : 2025-01-16 DOI:10.1021/acsnano.4c09903
Elham Loni, Ahmad Majed, Shengjie Zhang, Hari H. S. Thangavelu, Chaochao Dun, Anika Tabassum, Karamullah Eisawi, Jeffrey J. Urban, Per O. Å. Persson, Matthew M. Montemore, Michael Naguib
{"title":"Two-Dimensional Tantalum Carbo-Selenide for Hydrogen Evolution","authors":"Elham Loni, Ahmad Majed, Shengjie Zhang, Hari H. S. Thangavelu, Chaochao Dun, Anika Tabassum, Karamullah Eisawi, Jeffrey J. Urban, Per O. Å. Persson, Matthew M. Montemore, Michael Naguib","doi":"10.1021/acsnano.4c09903","DOIUrl":null,"url":null,"abstract":"Herein, we report the synthesis of two-dimensional Ta<sub>2</sub>Se<sub>2</sub>C (2D-Ta<sub>2</sub>Se<sub>2</sub>C) nanosheets using electrochemical lithiation in multilayer Ta<sub>2</sub>Se<sub>2</sub>C followed by sonication in deionized water. Multilayer Ta<sub>2</sub>Se<sub>2</sub>C was obtained via solid-state synthesis of Fe<sub><i>x</i></sub>Ta<sub>2</sub>Se<sub>2</sub>C followed by chemical etching of Fe. 2D-Ta<sub>2</sub>Se<sub>2</sub>C exhibited promising electrocatalytic activity for the hydrogen evolution reaction from water compared to multilayer Ta<sub>2</sub>Se<sub>2</sub>C and 2D-TaSe<sub>2</sub>. 2D-Ta<sub>2</sub>Se<sub>2</sub>C showed an overpotential at 10 mA·cm<sup>–2</sup> (η<sub>10</sub>) of 264 mV, a Tafel slope of 91 mV·dec<sup>–1</sup>, and an electrochemically active surface area of 17.61 m<sub>ECSA</sub><sup>2</sup>·g<sub>catalyst</sub><sup>–1</sup>. The high performance could be attributed to the large surface area of single sheets which hence maximizes the number of exposed catalytic sites and increased density of vacancies, observed with transmission electron microscopy, during synthesis and processing.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"45 1","pages":""},"PeriodicalIF":15.8000,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Nano","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsnano.4c09903","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Herein, we report the synthesis of two-dimensional Ta2Se2C (2D-Ta2Se2C) nanosheets using electrochemical lithiation in multilayer Ta2Se2C followed by sonication in deionized water. Multilayer Ta2Se2C was obtained via solid-state synthesis of FexTa2Se2C followed by chemical etching of Fe. 2D-Ta2Se2C exhibited promising electrocatalytic activity for the hydrogen evolution reaction from water compared to multilayer Ta2Se2C and 2D-TaSe2. 2D-Ta2Se2C showed an overpotential at 10 mA·cm–210) of 264 mV, a Tafel slope of 91 mV·dec–1, and an electrochemically active surface area of 17.61 mECSA2·gcatalyst–1. The high performance could be attributed to the large surface area of single sheets which hence maximizes the number of exposed catalytic sites and increased density of vacancies, observed with transmission electron microscopy, during synthesis and processing.

Abstract Image

二维碳硒化钽析氢研究
在此,我们报道了在多层Ta2Se2C中电化学锂化,然后在去离子水中超声合成二维Ta2Se2C (2D-Ta2Se2C)纳米片。通过FexTa2Se2C的固态合成和Fe的化学蚀刻得到多层Ta2Se2C,与多层Ta2Se2C和2D-TaSe2相比,2D-Ta2Se2C在水析氢反应中表现出良好的电催化活性。2D-Ta2Se2C在10 mA·cm-2 (η10)下的过电位为264 mV, Tafel斜率为91 mV·dec1,电化学活性表面积为17.61 mECSA2·gcatalyst-1。在合成和加工过程中,透射电子显微镜观察到,这种高性能可以归因于单片的大表面积,从而最大化暴露的催化位点的数量和增加的空位密度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
ACS Nano
ACS Nano 工程技术-材料科学:综合
CiteScore
26.00
自引率
4.10%
发文量
1627
审稿时长
1.7 months
期刊介绍: ACS Nano, published monthly, serves as an international forum for comprehensive articles on nanoscience and nanotechnology research at the intersections of chemistry, biology, materials science, physics, and engineering. The journal fosters communication among scientists in these communities, facilitating collaboration, new research opportunities, and advancements through discoveries. ACS Nano covers synthesis, assembly, characterization, theory, and simulation of nanostructures, nanobiotechnology, nanofabrication, methods and tools for nanoscience and nanotechnology, and self- and directed-assembly. Alongside original research articles, it offers thorough reviews, perspectives on cutting-edge research, and discussions envisioning the future of nanoscience and nanotechnology.
×
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×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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