Engineering the electronic structure of 2d ws2 nanosheets using co incorporation as coxw(1-x)s2 for conspicuously enhanced hydrogen generation
文献类型：期刊论文
| 作者 | Shifa, Tofik Ahmed1,2,3; Wang, Fengmei1,2,3; Liu, Kaili1,2,3; Xu, Kai1,2,3; Wang, Zhenxing1,2; Zhan, Xueying1,2; Jiang, Chao1; He, Jun1,2 |
| 刊名 | Small
 |
| 出版日期 | 2016-07-27 |
| 卷号 | 12期号:28页码:3802-3809 |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.201601168 |
| 通讯作者 | He, jun(hej@nanoctr.cn) |
| 英文摘要 | Transition metal dichalcogenides (tmds), as one of potential electrocatalysts for hydrogen evolution reaction (her), have been extensively studied. such tmd-based ternary materials are believed to engender optimization of hydrogen adsorption free energy to thermoneutral value. theoretically, cobalt is predicted to actively promote the catalytic activity of ws2. however, experimentally it requires systematic approach to form coxw(1-x)s2 without any concomitant side phases that are detrimental for the intended purpose. this study reports a rational method to synthesize pure ternary coxw(1-x)s2 nanosheets for efficiently catalyzing her. benefiting from the modification in the electronic structure, the resultant material requires overpotential of 121 mv versus reversible hydrogen electrode (rhe) to achieve current density of 10 ma cm(-2) and shows tafel slope of 67 mv dec(-1). furthermore, negligible loss of activity is observed over continues electrolysis of up to 2 h demonstrating its fair stability. the finding provides noticeable experimental support for other computational reports and paves the way for further works in the area of her catalysis based on ternary materials. |
| WOS关键词 | SPECTROSCOPY SURFACE QUANTIFICATION ; ELECTROCHEMICAL H-2 EVOLUTION ; MOS2 ULTRATHIN NANOSHEETS ; SULFIDED COMOP CATALYSTS ; ACTIVE EDGE SITES ; EFFICIENT ELECTROCATALYSTS ; MOLYBDENUM SULFIDE ; HYDRODESULFURIZATION CATALYSTS ; PROMOTED SITES ; DISULFIDE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000383375100009 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376006 |
| 专题 | 中国科学院大学 |
| 通讯作者 | He, Jun |
| 作者单位 | 1.Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, Beijing 100190, Peoples R China 2.Natl Ctr Nanosci & Technol, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shifa, Tofik Ahmed,Wang, Fengmei,Liu, Kaili,et al. Engineering the electronic structure of 2d ws2 nanosheets using co incorporation as coxw(1-x)s2 for conspicuously enhanced hydrogen generation[J]. Small,2016,12(28):3802-3809. |
| APA | Shifa, Tofik Ahmed.,Wang, Fengmei.,Liu, Kaili.,Xu, Kai.,Wang, Zhenxing.,...&He, Jun.(2016).Engineering the electronic structure of 2d ws2 nanosheets using co incorporation as coxw(1-x)s2 for conspicuously enhanced hydrogen generation.Small,12(28),3802-3809. |
| MLA | Shifa, Tofik Ahmed,et al."Engineering the electronic structure of 2d ws2 nanosheets using co incorporation as coxw(1-x)s2 for conspicuously enhanced hydrogen generation".Small 12.28(2016):3802-3809. |
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来源：中国科学院大学
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