Computational Screening of Single Atoms Anchored on Defective Mo2CO2 MXene Nanosheet as Efficient Electrocatalysts for the Synthesis of Ammonia
文献类型：期刊论文
| 作者 | Wang, Shuo7; Li, Lei6; San Hui, Kwan5; Bin F(宾峰)4 ; Zhou, Wei3; Fan, Xi2; Zalnezhad, E.1; Li, Jing7; Hui, Kwun Nam7
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| 刊名 | ADVANCED ENGINEERING MATERIALS
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| 出版日期 | 2021-07-22 |
| 页码 | 8 |
| 关键词 | density functional theory calculations electrocatalysis MXene nitrogen reduction reaction single-atom catalysts |
| ISSN号 | 1438-1656 |
| DOI | 10.1002/adem.202100405 |
| 通讯作者 | Li, Lei(uestclilei@163.com) ; San Hui, Kwan(k.hui@uea.ac.uk) ; Li, Jing(victor_li_glv@hotmail.com) ; Hui, Kwun Nam(bizhui@um.edu.mo) |
| 英文摘要 | The electrochemical nitrogen reduction reaction (NRR) over single-atom catalysts (SACs) anchored on Mo vacancies of Mo2CO2 MXene nanosheets under ambient conditions suffers from poor selectivity, low yield, and low Faradaic efficiency because of their sluggish kinetics and the competing hydrogen evolution reaction. Herein, density functional theory calculations are performed to improve the understanding of the selectivity and yielding of ammonia through NRR over various isolated SACs, that is, from Sc to Au, anchored on the Mo vacancy of the Mo2CO2 MXene nanosheet (denoted as MO2CO2-M-SA). The potential-determining step of the NRR shows that eight candidates (i.e., Y, Zr, Nb, Hf, Ta, W, Re, and Os) confined on the defective Mo2CO2 layer could promote the electroreduction from N-2 to NH3. Among these, Mo2CO2-Y-SA presented the lowest reported reaction Presents the lowest reported reaction energy barrier (0.08 eV) through the distal pathway and high selectivity to NRR compared with the previously synthesized Mo2CO2-Ru-SA with a relatively high energy barrier (0.65 eV) and poor selectivity. In addition, the formation energy of Mo2CO2-Y-SA is more negative than that of the Mo2CO2-Ru-SA catalyst, suggesting that the experimental preparation of the Mo2CO2-Y-SA catalyst is highly feasible. This work lays a solid foundation for improving the rational design of MXene-based systems as efficient electrocatalysts for the synthesis of ammonia. |
| 分类号 | 二类 |
| WOS关键词 | HYDROGEN EVOLUTION REACTION ; NITROGEN REDUCTION ; N-2 FIXATION ; CATALYSTS ; MONOLAYER ; NITRIDE |
| 资助项目 | Science and Technology Development Fund, Macau SAR[0191/2017/A3] ; Science and Technology Development Fund, Macau SAR[0041/2019/A1] ; Science and Technology Development Fund, Macau SAR[0046/2019/AFJ] ; Science and Technology Development Fund, Macau SAR[0021/2019/AIR] ; University of Macau[MYRG2017-00216-FST] ; University of Macau[MYRG2018-00192-IAPME] ; UEA ; Biomechacin, Texas, USA[BMC200101] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000675530700001 |
| 资助机构 | Science and Technology Development Fund, Macau SAR ; University of Macau ; UEA ; Biomechacin, Texas, USA |
| 其他责任者 | Li, Lei ; San Hui, Kwan ; Li, Jing ; Hui, Kwun Nam |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87064]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Univ Texas San Antonio, Dept Chem & Biomed Engn, San Antonio, TX USA 2.Chinese Acad Sci, Ningbo Inst Mat Technol, Engn, Ningbo 315201, Peoples R China; 3.Xiamen Univ, Dept Mech & Elect Engn, Xiamen 361005, Peoples R China; 4.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 5.Univ East Anglia, Fac Sci, Sch Engn, Norwich NR4 7TJ, Norfolk, England; 6.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Collaborat Innovat Ctr Chem Energy Mat, Hefei 230026, Peoples R China; 7.Univ Macau, Inst Appl Phys & Mat Engn, Minist Educ, Joint Key Lab, Ave Univ, Taipa, Macau, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Shuo,Li, Lei,San Hui, Kwan,et al. Computational Screening of Single Atoms Anchored on Defective Mo2CO2 MXene Nanosheet as Efficient Electrocatalysts for the Synthesis of Ammonia[J]. ADVANCED ENGINEERING MATERIALS,2021:8. |
| APA | Wang, Shuo.,Li, Lei.,San Hui, Kwan.,宾峰.,Zhou, Wei.,...&Hui, Kwun Nam.(2021).Computational Screening of Single Atoms Anchored on Defective Mo2CO2 MXene Nanosheet as Efficient Electrocatalysts for the Synthesis of Ammonia.ADVANCED ENGINEERING MATERIALS,8. |
| MLA | Wang, Shuo,et al."Computational Screening of Single Atoms Anchored on Defective Mo2CO2 MXene Nanosheet as Efficient Electrocatalysts for the Synthesis of Ammonia".ADVANCED ENGINEERING MATERIALS (2021):8. |
入库方式： OAI收割
来源：力学研究所
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