CAS OpenIR
Defect-engineered three-dimensional vanadium diselenide microflowers/nanosheets on carbon cloth by chemical vapor deposition for high-performance hydrogen evolution reaction
Miao,Chengcheng1; Zhang,Ting1; Li,Fulin1; Zhang,Lei2; Sun,Jiamin1; Liu,Dong1; Wu,Liqian3; Wang,Hang4; Chen,Fenghua5; He,Longbing2; Han,Ning4; Ma,Yandong1; Dai,Ying1; Yang,Zai-xing1
2021-04-13
Source PublicationNanotechnology
ISSN0957-4484
Volume32Issue:26
AbstractAbstract In the past decades, defect engineering has become an effective strategy to significantly improve the hydrogen evolution reaction (HER) efficiency of electrocatalysts. In this work, a facile chemical vapor deposition (CVD) method is firstly adopted to demonstrate defect engineering in high-efficiency HER electrocatalysts of vanadium diselenide nanostructures. For practical applications, the conductive substrate of carbon cloth (CC) is selected as the growth substrate. By using a four-time CVD method, uniform three-dimensional microflowers with defect-rich small nanosheets on the surface are prepared directly on the CC substrate, displaying a stable HER performance with a low Tafel slope value of 125 mV dec?1 and low overpotential voltage of 295 mV at a current density of 10 mA cm?2 in alkaline electrolyte. Based on the results of x-ray photoelectron spectra and density functional theory calculations, the impressive HER performance originates from the Se vacancy-related active sites of small nanosheets, while the microflower/nanosheet homoepitaxy structure facilitates the carrier flow between the active sites and conductive substrate. All the results present a new route to achieve defect engineering using the facile CVD technique, and pave a novel way to prepare high-activity layered electrocatalysts directly on a conductive substrate.
Keyworddefect engineering vanadium diselenide 3D microflowers/nanosheets chemical vapor deposition hydrogen evolution reaction
DOI10.1088/1361-6528/abecb8
Language英语
WOS IDIOP:0957-4484-32-26-abecb8
PublisherIOP Publishing
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/47701
Collection中国科学院过程工程研究所
Corresponding AuthorYang,Zai-xing
Affiliation1.School of Physics, School of Microelectronics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People’s Republic of China
2.SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, Nanjing, 210096, People’s Republic of China
3.School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, People’s Republic of China
4.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
5.School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People’s Republic of China
Recommended Citation
GB/T 7714
Miao,Chengcheng,Zhang,Ting,Li,Fulin,et al. Defect-engineered three-dimensional vanadium diselenide microflowers/nanosheets on carbon cloth by chemical vapor deposition for high-performance hydrogen evolution reaction[J]. Nanotechnology,2021,32(26).
APA Miao,Chengcheng.,Zhang,Ting.,Li,Fulin.,Zhang,Lei.,Sun,Jiamin.,...&Yang,Zai-xing.(2021).Defect-engineered three-dimensional vanadium diselenide microflowers/nanosheets on carbon cloth by chemical vapor deposition for high-performance hydrogen evolution reaction.Nanotechnology,32(26).
MLA Miao,Chengcheng,et al."Defect-engineered three-dimensional vanadium diselenide microflowers/nanosheets on carbon cloth by chemical vapor deposition for high-performance hydrogen evolution reaction".Nanotechnology 32.26(2021).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Miao,Chengcheng]'s Articles
[Zhang,Ting]'s Articles
[Li,Fulin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Miao,Chengcheng]'s Articles
[Zhang,Ting]'s Articles
[Li,Fulin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Miao,Chengcheng]'s Articles
[Zhang,Ting]'s Articles
[Li,Fulin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.