Lanzhou University of Technology Institutional Repository (LUT_IR)
Self-supported NbSe2 nanosheet arrays for highly efficient ammonia electrosynthesis under ambient conditions | |
Wang, Yong1; Chen, Anran1; Lai, Shuhua2; Peng, Xianyun2; Zhao, Shunzheng3; Hu, Guangzhi1; Qiu, Yuan2; Ren, Junqiang4; Liu, Xijun2; Luo, Jun2 | |
2020 | |
发表期刊 | Journal of Catalysis |
ISSN | 00219517 |
卷号 | 381页码:78-83 |
摘要 | As a promising alternative to the Haber–Bosch process for producing NH3, the electrocatalytic nitrogen reduction reaction (NRR) in the aqueous electrolyte has attracted much attention. However, the presence of sluggish reaction kinetics and competitive hydrogen evolution could result in poor activity and unsatisfactory selectivity. Herein, self-supported NbSe2 nanosheet arrays have been prepared and tested as electrocatalysts for NH3 electrosynthesis with a Faradaic efficiency of 13.9 ± 1.0% at −0.4 V versus the reversible hydrogen electrode (vs RHE) and a yield rate of 89.5 ± 6.0 μg h−1 mgcat.−1 at −0.45 V vs RHE in 0.1 M Na2SO4 under ambient conditions. Moreover, this electrocatalyst showed excellent durability during the 60-h electrolysis (no stable decay of Faradaic efficiencies and NH3 yield rates). Furthermore, density functional theory calculations disclosed that NbSe2 can effectively catalyze the dissociation of the adsorbed N2 molecule and thus promote the NRR process. © 2019 Elsevier Inc. |
关键词 | Ammonia Density functional theory Efficiency Electrocatalysts Electrolytes Electrolytic reduction Hydrogen Nanosheets Reaction kinetics Selenium compounds Sodium sulfate Aqueous electrolyte Electro reduction Faradaic efficiencies Hydrogen evolution Nano-architecture NH3 electrosynthesis Reversible hydrogen electrodes Self-supported |
DOI | 10.1016/j.jcat.2019.10.029 |
收录类别 | EI |
语种 | 英语 |
出版者 | Academic Press Inc. |
EI入藏号 | 20194607681437 |
EI主题词 | Niobium compounds |
来源库 | Compendex |
分类代码 | 761 Nanotechnology - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 913.1 Production Engineering - 922.1 Probability Theory - 933 Solid State Physics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/115804 |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 设计艺术学院 继续教育学院 |
作者单位 | 1.School of Chemical Science and Technology, School of Energy, Yunnan University, Kunming; 650091, China; 2.Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin; 300384, China; 3.Department of Environmental Engineering, University of Science and Technology Beijing, Beijing; 100083, China; 4.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China |
第一作者单位 | 新能源学院 |
第一作者的第一单位 | 新能源学院 |
推荐引用方式 GB/T 7714 | Wang, Yong,Chen, Anran,Lai, Shuhua,et al. Self-supported NbSe2 nanosheet arrays for highly efficient ammonia electrosynthesis under ambient conditions[J]. Journal of Catalysis,2020,381:78-83. |
APA | Wang, Yong.,Chen, Anran.,Lai, Shuhua.,Peng, Xianyun.,Zhao, Shunzheng.,...&Luo, Jun.(2020).Self-supported NbSe2 nanosheet arrays for highly efficient ammonia electrosynthesis under ambient conditions.Journal of Catalysis,381,78-83. |
MLA | Wang, Yong,et al."Self-supported NbSe2 nanosheet arrays for highly efficient ammonia electrosynthesis under ambient conditions".Journal of Catalysis 381(2020):78-83. |
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