Boosting electrocatalytic activity for CO2 reduction on nitrogen-doped carbon catalysts by co-doping with phosphorus

doi:10.1016/j.jechem.2020.05.006

IMR OpenIR

	Boosting electrocatalytic activity for CO2 reduction on nitrogen-doped carbon catalysts by co-doping with phosphorus
	Chen, Shuo 1,2; Liu, Tianfu 2; Olanrele, Samson O.2; Lian, Zan 2; Si, Chaowei 2; Chen, Zhimin 1; Li, Bo 2
通讯作者	Chen, Zhimin(zmchen@hlju.edu.cn) ; Li, Bo(boli@imr.ac.cn)
	2021-03-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	54 页码:143-150
摘要	Electrochemical reduction of CO2 (CERR) to value-added chemicals is an attractive strategy for greenhouse gas mitigation, and carbon recycles utilization. Conventional metal catalysts suffered from low durability and sluggish kinetics impede the practical application. On the other hand, doped carbon materials recently demonstrate superior catalytic performance in CERR, which shows the potential to diminish the problems of metal catalysts to some extent. Herein, we present the design and fabrication of nitrogen (N), phosphorus (P) co-doped metal-free carbon materials as an efficient and stable electrocatalyst for reduction of CO2 to CO, which exhibits an excellent performance with a high faradaic efficiency of 92% (-0.55 V vs. RHE) and up to 24 h stability. A series of characterizations including TEM and XPS verified that nitrogen and phosphorous are successfully incorporated into the carbon matrix. Moreover, the comparisons between co-doping and single doping catalysts reveal that co-doping can significantly increase CERR performance. The improved catalytic activity is attributed to the synergetic effects between nitrogen and phosphorous dopants, which effectively modulate properties of the active site. The density functional theory (DFT) calculations were also performed to understand the synergy effects of dopants. It is revealed that the phosphorous doping can significantly lower the Gibbs free energy of COOH* formation. Moreover, the introduction of the second dopants phosphorous can reduce the reaction barrier along the reaction path and cause polarization of density of states at the Fermi level. These changes can greatly enhance the activity of the catalysts. From a combined experimental and computational exploration, current work provides valuable insights into the reaction mechanism of CERR on N, P co-doped carbon catalysts, and the influence from synergy effects between dopants, which paves the way for the rational design of novel metal-free catalysts for CO2 electro-reduction. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
关键词	Metal-free catalyst CO2 reduction Co-doping, DFT
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liao Ning Province ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase)
DOI	10.1016/j.jechem.2020.05.006
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21573255] ; National Natural Science Foundation of China[21573062] ; Natural Science Foundation of Liao Ning Province[20180510014] ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase)[U1501501]
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000605328400018
出版者	ELSEVIER
引用统计	被引频次：55[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158973
专题	中国科学院金属研究所
通讯作者	Chen, Zhimin; Li, Bo
作者单位	1.Heilongjiang Univ, Sch Chem & Mat Sci, Key Lab Funct Inorgan Mat Chem, Minist Educ China, Harbin 150080, Heilongjiang, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shuo,Liu, Tianfu,Olanrele, Samson O.,et al. Boosting electrocatalytic activity for CO2 reduction on nitrogen-doped carbon catalysts by co-doping with phosphorus[J]. JOURNAL OF ENERGY CHEMISTRY,2021,54:143-150.
APA	Chen, Shuo.,Liu, Tianfu.,Olanrele, Samson O..,Lian, Zan.,Si, Chaowei.,...&Li, Bo.(2021).Boosting electrocatalytic activity for CO2 reduction on nitrogen-doped carbon catalysts by co-doping with phosphorus.JOURNAL OF ENERGY CHEMISTRY,54,143-150.
MLA	Chen, Shuo,et al."Boosting electrocatalytic activity for CO2 reduction on nitrogen-doped carbon catalysts by co-doping with phosphorus".JOURNAL OF ENERGY CHEMISTRY 54(2021):143-150.