Ar2+ Beam Irradiation-Induced Multivancancies in MoSe2 Nanosheet for Enhanced Electrochemical Hydrogen Evolution
文献类型：期刊论文
| 作者 | Li, Jun2; Xia, Baorui1; Wang, Tongtong1; Jiang, Xingdong1; Zhang, Tongmin2; Xiao, Wen3; Xi, Pinxian1; Gao, Daqiang1; Xue, Desheng1; Ding, Jun3 |
| 刊名 | ACS ENERGY LETTERS
 |
| 出版日期 | 2018-09 |
| 卷号 | 3页码:2167-2172 |
| ISSN号 | 2380-8195 |
| DOI | 10.1021/acsenergylett.8b01209 |
| 英文摘要 | Poor electronic conductivity and an inert basal plane restrict the further enhancement of hydrogen evolution reaction (HER) in 2H-phase MoSe2. Herein, we synthesized MoSe2 nanosheet arrays on carbon cloth and induced multivacancies in their basal plane via high-energy Ar2+ beam irradiation, which are confirmed by Raman, electron spin resonance, X-ray photoelectron spectroscopy, and high resolution transmission electron microscopy analyses. Electrical measurement results indicate that these vacancies in the MoSe2 basal plane can effectively improve their electrocatalytic performance, where the lowest overpotential of -171 mV at the current density of -100 mA/cm(2) and Tafel slope of 35 mV/dec were achieved in Ar2+ -irradiated (dose of 5 X 10(15) ions/cm(2)) MoSe2 nanosheets. First-principles calculation results reveal that different cases of native vacancies in the MoSe2 basal plane could effectively enhance the conductivity of MoSe2 and produce more catalytic active sites for hydrogen evolution, giving rise to the better electrocatalytic capacity in the HER process. This finding opens the strategy of vacancy engineering for efficient hydrogen evolution in other transition metal dichalcogenide-based electrocatalysts. |
| WOS关键词 | MONOLAYER MOS2 ; ACTIVE-SITES ; ELECTROCATALYST ; PERFORMANCE ; STORAGE ; VACANCIES ; EMISSION ; CATALYST ; DEFECTS ; PHASE |
| 资助项目 | Program for Changjiang Scholars and Innovative Research Team in University[IRT 16R35] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000445052900022 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/59683]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.Lanzhou Univ, Key Lab Special Funct Mat & Struct Design MOE, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, KV Platform Multidiscipline Res Highly Charged Io, Lanzhou 730000, Gansu, Peoples R China 3.Natl Univ Singapore, Dept Mat Sci & Engn, 9 Engn Dr 1, Singapore 117575, Singapore |
| 推荐引用方式 GB/T 7714 | Li, Jun,Xia, Baorui,Wang, Tongtong,et al. Ar2+ Beam Irradiation-Induced Multivancancies in MoSe2 Nanosheet for Enhanced Electrochemical Hydrogen Evolution[J]. ACS ENERGY LETTERS,2018,3:2167-2172. |
| APA | Li, Jun.,Xia, Baorui.,Wang, Tongtong.,Jiang, Xingdong.,Zhang, Tongmin.,...&Ding, Jun.(2018).Ar2+ Beam Irradiation-Induced Multivancancies in MoSe2 Nanosheet for Enhanced Electrochemical Hydrogen Evolution.ACS ENERGY LETTERS,3,2167-2172. |
| MLA | Li, Jun,et al."Ar2+ Beam Irradiation-Induced Multivancancies in MoSe2 Nanosheet for Enhanced Electrochemical Hydrogen Evolution".ACS ENERGY LETTERS 3(2018):2167-2172. |
入库方式： OAI收割
来源：近代物理研究所
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