Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower
文献类型：期刊论文
| 作者 | Qiu, Weibin; Sun, Xuping; Tang, Bo; Chen, Liang; Asiri, Abdullah M.; Zhang, Peng; Shi, Xifeng; Guo, Haoran; Wei, Qin; Ma, Yongjun |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:30 |
| 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 |
| 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). |
| 学科主题 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17106]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Qiu, Weibin,Sun, Xuping,Tang, Bo,et al. Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower[J]. ADVANCED ENERGY MATERIALS,2018,8(30). |
| APA | Qiu, Weibin.,Sun, Xuping.,Tang, Bo.,Chen, Liang.,Asiri, Abdullah M..,...&Li, Xianghong.(2018).Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower.ADVANCED ENERGY MATERIALS,8(30). |
| MLA | Qiu, Weibin,et al."Boosted Electrocatalytic N-2 Reduction to NH3 by Defect-Rich MoS2 Nanoflower".ADVANCED ENERGY MATERIALS 8.30(2018). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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