DOI: 10.1016/j.jcou.2017.05.012
Scopus记录号: 2-s2.0-85019640886
论文题名: In-situ boron and nitrogen doping in flue gas derived carbon materials for enhanced oxygen reduction reaction
作者: Baik S. ; Suh B.L. ; Byeon A. ; Kim J. ; Lee J.W.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 20 起始页码: 73
结束页码: 80
语种: 英语
英文关键词: BN co-doped carbon
; Density functional theory
; Electocatalysis
; Flue gas conversion
Scopus关键词: Atmospheric pressure
; Carbon dioxide
; Chemical bonds
; Density functional theory
; Electrolytic reduction
; Flue gases
; Flues
; Fuel cells
; Gases
; Oxygen
; Porous materials
; Reduction
; Boron and nitrogen doping
; Co-doped
; Electocatalysis
; Electrocatalytic activity
; Electrocatalytic performance
; Electrochemical reactions
; Gas conversion
; Oxygen reduction reaction
; Nitrogen
英文摘要: A model flue gas of N2 and CO2 mixture was directly converted into 'boron and nitrogen co-doped porous carbon materials (FlueBNPC)' at 500 °C and atmospheric pressure. The synthesized FlueBNPC showed enhanced electrocatalytic performance for oxygen reduction reaction (ORR) in the fuel cell cathode. Boron and nitrogen in the carbon network, which were simultaneously doped from flue gas in a single step, interplayed as active sites for the electrochemical reaction. The FlueBNPC showed higher electrocatalytic activity than previous heteroatom-doped carbon materials and comparable activity to that of a commercial Pt/C catalyst with a dominant four-electron transfer pathway. This enhancement originates from the newly formed B-N bonding combined with oxygen atoms in the carbon network. The synergetic effect of nitrogen attachment to the boron centre of the O-B-C bonds was investigated by DFT calculations. Our results indicate that flue gas itself can be used as an effective precursor for the one-step process not only to convert CO2 into useful carbon materials, but also to insert boron and nitrogen atoms into the carbon lattices, and we demonstrate a potential utilization of the flue gas as a carbon source for electrochemial applications. © 2017 Elsevier Ltd. All rights reserved. 资助项目: Ministry of Education
; National Research Foundation of Korea
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52694
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Baik S.,Suh B.L.,Byeon A.,et al. In-situ boron and nitrogen doping in flue gas derived carbon materials for enhanced oxygen reduction reaction[J]. Journal of CO2 Utilization,2017-01-01,20