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. 金属研究所
  3. 中国科学院金属研究所
Highly Selective Hydrogen Peroxide Electrosynthesis on Carbon: In Situ Interface Engineering with Surfactants

文献类型：期刊论文

作者Wu, Kuang-Hsu2,3; Wang, Dan2; Lu, Xingyu2; Zhang, Xuefei4; Xie, Zailai4; Liu, Yuefeng5; Su, Bing-Jian6; Chen, Jin-Ming2; Su, Dang-Sheng2,5; Qi, Wei2
刊名CHEM
出版日期2020-06-11
卷号6期号:6页码:1443-1458
ISSN号2451-9294
DOI10.1016/j.chempr.2020.04.002
通讯作者Xie, Zailai(zlxie@fzu.edu.cn) ; Qi, Wei(wqi@imr.ac.cn) ; Guo, Shaojun(guosj@pku.edu.cn)
英文摘要In situ modulation of surface reaction is a powerful approach to drive high-yield H2O2 electrosynthesis on metal-free carbon. Here, we discover that cationic surfactants can work efficiently as an in situ kinetic promoter for the oxygen-to-peroxide reaction on a car bon black electrode, achieving a peroxide yield above 90% (up to 95.2%) across a >0.8 V window in alkaline media, the best among reported H2O2 electrocatalysts. Our characterizations and kinetic model analysis show that the high peroxide selectivity is attributable to surface carboxylates (-COO-) with weak peroxide binding under a Coulombic pull imposed by an adsorbed cationic layer. Although surface carbonyls (-C=O) also participate in the peroxide synthesis, they exhibit strong binding to peroxide and promote on-site reduction at moderate-to-high overpotential. At only a minute amount of cationic surfactant, a chronoamperometry experiment with a carbonyl-free system can deliver a peroxide production at a sustainably high selectivity (similar to 96%) over 10h.
资助项目NSFC, China[21761132010] ; NSFC, China[91645114] ; NSFC, China[21573256] ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China ; UNSW, Sydney (UNSW Faculty Research Fellowship), Australia
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000540905600030
出版者CELL PRESS
资助机构NSFC, China ; Youth Innovation Promotion Association, Chinese Academy of Sciences, China ; UNSW, Sydney (UNSW Faculty Research Fellowship), Australia
源URL[http://ir.imr.ac.cn/handle/321006/139571]  
专题金属研究所_中国科学院金属研究所
通讯作者Xie, Zailai; Qi, Wei; Guo, Shaojun
作者单位1.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ New South Wales, Sch Chem Engn, Kensington, NSW 2052, Australia
4.Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350016, Peoples R China
5.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
6.Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan
推荐引用方式
GB/T 7714		 Wu, Kuang-Hsu,Wang, Dan,Lu, Xingyu,et al. Highly Selective Hydrogen Peroxide Electrosynthesis on Carbon: In Situ Interface Engineering with Surfactants[J]. CHEM,2020,6(6):1443-1458.
APA Wu, Kuang-Hsu.,Wang, Dan.,Lu, Xingyu.,Zhang, Xuefei.,Xie, Zailai.,...&Guo, Shaojun.(2020).Highly Selective Hydrogen Peroxide Electrosynthesis on Carbon: In Situ Interface Engineering with Surfactants.CHEM,6(6),1443-1458.
MLA Wu, Kuang-Hsu,et al."Highly Selective Hydrogen Peroxide Electrosynthesis on Carbon: In Situ Interface Engineering with Surfactants".CHEM 6.6(2020):1443-1458.

入库方式： OAI收割

来源：金属研究所

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。