中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 重庆绿色智能技术研究院
  3. 中国科学院重庆绿色智能技术研究院
Enhanced nitrate reduction reaction via efficient intermediate nitrite conversion on tunable CuxNiy/NC electrocatalysts

文献类型：期刊论文

作者Fang, Ling1,2; Wang, Sha1,2; Song, Cheng1,2; Yang, Xiaohui1,2; Li, Yuke3,4; Liu, Hong1,2
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2022-01-05
卷号421页码:9
关键词Nitrate reduction reaction Copper-nickel alloy Density functional theory Nitrite conversion Mechanism
ISSN号0304-3894
DOI10.1016/j.jhazmat.2021.126628
通讯作者Liu, Hong(liuhong@cigit.ac.cn)
英文摘要Electroreduction of nitrate (NO3-) to value-added ammonia (NH3) provides an alternative to NH3 production industry and remediation of NO3--containing wastewater. This study reports a series of Cu-Ni catalysts with component-controllable CuxNiy nanoparticles encapsulated in N-doped carbon film (CuxNiy/NC), and disclosure of the associated mechanism for NO3- reduction reaction (NO3-RR). Cu0.43Ni0.57/NC achieves a better NO3--N removal proportion of 89% in comparison with the reference catalysts, including Cu/NC (73%) and CuxNiy/NC with other compositions (Cu0.79Ni0.21/NC, 83%; Cu0.26Ni0.74/NC, 62%; Ni/NC, 20%). The experimental results and density functional theory calculations demonstrate that the lowered energy barriers of *NO2-to-*NO derived from appropriate Ni atom alloying plays a key role in the enhanced catalytic activity. Auxiliary porous substrate further contributes to the exposure of active sites and the durability of catalyst structure. These findings offer a mechanistic understanding of catalyst structure on the NO3-RR activity and valuable insights toward rational design of other catalysts for enhanced NO3-RR.
资助项目Special Research Assistant Program of Chinese Academy of Science, National Natural Science Foundation of China[42007180] ; Special Research Assistant Program of Chinese Academy of Science, National Natural Science Foundation of China[51808527] ; Special Research Assistant Program of Chinese Academy of Science, National Natural Science Foundation of China[51727812] ; Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX0775]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000696924200008
出版者ELSEVIER
源URL[http://119.78.100.138/handle/2HOD01W0/14328]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Liu, Hong
作者单位1.Univ Chinese Acad Sci, Chongqing Sch, 266 Fangzheng Ave, Chongqing 400714, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave, Chongqing 400714, Peoples R China
3.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
4.Chinese Univ Hong Kong, Ctr Sci Modeling & Computat, Shatin, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Fang, Ling,Wang, Sha,Song, Cheng,et al. Enhanced nitrate reduction reaction via efficient intermediate nitrite conversion on tunable CuxNiy/NC electrocatalysts[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,421:9.
APA Fang, Ling,Wang, Sha,Song, Cheng,Yang, Xiaohui,Li, Yuke,&Liu, Hong.(2022).Enhanced nitrate reduction reaction via efficient intermediate nitrite conversion on tunable CuxNiy/NC electrocatalysts.JOURNAL OF HAZARDOUS MATERIALS,421,9.
MLA Fang, Ling,et al."Enhanced nitrate reduction reaction via efficient intermediate nitrite conversion on tunable CuxNiy/NC electrocatalysts".JOURNAL OF HAZARDOUS MATERIALS 421(2022):9.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。