Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: Decisive Intermediates Responsible for the Carbonaceous Products of CO2 Electro-reduction on Nitrogen-Doped sp(2) Nanocarbon Catalysts in NaHCO3 Aqueous Electrolyte
作者: Xu, Junyuan;  Zhang, Bingsen;  Wang, Bolun;  Wu, KuangHsu;  Peng, Zhangquan;  Li, Qingfeng;  Centi, Gabriele;  Su, Dang Sheng
通讯作者: Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
发表日期: 2017-6-1
学科主题: Electrochemistry
关键词: nitrogen-doped sp(2) nanocarbon;  carbon dioxide electro-reduction;  reaction route;  reaction mechanism
摘要: Nitrogen-doped sp(2) nanocarbon materials have been considered promising catalysts for CO2 electro-reduction. However, a fundamental understanding about product selectivity and the reaction routes is still lacking. In this report, the reaction mechanism on nitrogen-doped sp(2) nanocarbon materials is resolved by clarifying the authentic origin of the carbonaceous products: CO and HCO2 . Two carbon-reduction pathways are identified based on a series of comparative studies by using differential electrochemical mass spectrometry and in situ CO adsorption experiments: a dominant pathway leading to CO from CO2 and a secondary pathway leading to HCO2- from HCO3-. Neither hydrocarbon (CxHy) nor alcohol or aldehyde (Cx HyOz) were detected in the reduction of CO2. However, CO, which is generally regarded as an intermediate to be transformed into these products on metal catalysts, can undoubtedly be produced and adsorbed on nitrogen- doped sp(2) nanocarbon catalysts during the reaction.
资助者: National Natural Science Foundation of China [21133010, 51221264, 21261160487, 91545119]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA09030103]; Tingsui Ke fellowship
英文摘要: Nitrogen-doped sp(2) nanocarbon materials have been considered promising catalysts for CO2 electro-reduction. However, a fundamental understanding about product selectivity and the reaction routes is still lacking. In this report, the reaction mechanism on nitrogen-doped sp(2) nanocarbon materials is resolved by clarifying the authentic origin of the carbonaceous products: CO and HCO2 . Two carbon-reduction pathways are identified based on a series of comparative studies by using differential electrochemical mass spectrometry and in situ CO adsorption experiments: a dominant pathway leading to CO from CO2 and a secondary pathway leading to HCO2- from HCO3-. Neither hydrocarbon (CxHy) nor alcohol or aldehyde (Cx HyOz) were detected in the reduction of CO2. However, CO, which is generally regarded as an intermediate to be transformed into these products on metal catalysts, can undoubtedly be produced and adsorbed on nitrogen- doped sp(2) nanocarbon catalysts during the reaction.
部门归属: [Xu, Junyuan;  Zhang, Bingsen;  Wang, Bolun;  Wu, KuangHsu;  Su, Dang Sheng] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China;  [Peng, Zhangquan] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, 5625 Renmin Rd, Changchun 130022, Jilin, Peoples R China;  [Li, Qingfeng] Tech Univ Denmark, Dept Energy Convers & Storage, Kemitorvet 207, DK-2800 Lyngby, Denmark;  [Centi, Gabriele] Univ Messina, Dept Elect Engn Ind Chem & Engn, Sect Ind Chem, Vle F Stagno DAlcontres 31, I-98166 Messina, Italy;  [Centi, Gabriele] INSTM CASPE, Lab Catalysis Sustainable Prod & Energy, Vle F Stagno DAlcontres 31, I-98166 Messina, Italy
刊名: WILEY-V C H VERLAG GMBH
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.imr.ac.cn/handle/321006/79184
ISSN号: 2196-0216
语种: 英语
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.




Recommended Citation:
Xu, Junyuan,Zhang, Bingsen,Wang, Bolun,et al. Decisive Intermediates Responsible For The Carbonaceous Products Of Co2 Electro-reduction On Nitrogen-doped Sp(2) Nanocarbon Catalysts In Nahco3 Aqueous Electrolyte[J]. Wiley-v C H Verlag Gmbh,2017,4(6):1274-1278.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Xu, Junyuan]'s Articles
 [Zhang, Bingsen]'s Articles
 [Wang, Bolun]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Xu, Junyuan]‘s Articles
 [Zhang, Bingsen]‘s Articles
 [Wang, Bolun]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace