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Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower
文献类型：期刊论文
| 作者 | Zhang, Peng; Asiri, Abdullah M.; Sun, Xuping; Chen, Liang; Tang, Bo; Wei, Qin; Ma, Yongjun; Li, Tingshuai; Li, Xianghong; Qiu, Weibin |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:30页码:1801357 |
| 关键词 | artificial N-2 fixation defect-rich MoS2 density functional theory electrocatalysis NH3 |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.201801357 |
| 文献子类 | Article |
| 英文摘要 | The industrial artificial fixation of atmospheric N-2 to NH3 is carried out using the Haber-Bosch process that is not only energy-intensive but emits large amounts of greenhouse gas. Electrochemical reduction offers an environmentally benign and sustainable alternative for NH3 synthesis. Although Mo-dependent nitrogenases and molecular complexes effectively catalyze the N-2 fixation at ambient conditions, the development of a Mo-based nanocatalyst for highly performance electrochemical N-2 fixation still remains a key challenge. Here, greatly boosted electrocatalytic N-2 reduction to NH3 with excellent selectivity by defect-rich MoS2 nanoflowers is reported. In 0.1 m Na2SO4, this catalyst attains a high Faradic efficiency of 8.34% and a high NH3 yield of 29.28 mu g h(-1) mg(cat.)(-1) at (-)0.40 V versus reversible hydrogen electrode, much larger than those of defect-free counterpart (2.18% and 13.41 mu g h(-1) mg(cat.)(-1)), with strong electrochemical stability. Density functional theory calculations show that the potential determining step has a lower energy barrier (0.60 eV) for defect-rich catalyst than that of defect-free one (0.68 eV). |
| 电子版国际标准刊号 | 1614-6840 |
| WOS关键词 | EFFICIENT HYDROGEN EVOLUTION ; TOTAL-ENERGY CALCULATIONS ; SINGLE MOLYBDENUM CENTER ; ACTIVE EDGE SITES ; WAVE BASIS-SET ; AMBIENT CONDITIONS ; ULTRATHIN NANOSHEETS ; ATMOSPHERIC-PRESSURE ; CATALYTIC-REDUCTION ; NITROGEN-FIXATION |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000448257300005 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286857]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Peng,Asiri, Abdullah M.,Sun, Xuping,et al. Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower[J]. ADVANCED ENERGY MATERIALS,2018,8(30):1801357. |
| APA | Zhang, Peng.,Asiri, Abdullah M..,Sun, Xuping.,Chen, Liang.,Tang, Bo.,...&Shi, Xifeng.(2018).Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower.ADVANCED ENERGY MATERIALS,8(30),1801357. |
| MLA | Zhang, Peng,et al."Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower".ADVANCED ENERGY MATERIALS 8.30(2018):1801357. |
入库方式： OAI收割
来源：高能物理研究所
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