Defective N/S-Codoped 3D Cheese-Like Porous Carbon Nanomaterial toward Efficient Oxygen Reduction and Zn-Air Batteries

doi:10.1002/smll.201800563

CORC > 兰州理工大学 > 兰州理工大学

	Defective N/S-Codoped 3D Cheese-Like Porous Carbon Nanomaterial toward Efficient Oxygen Reduction and Zn-Air Batteries
	Zhu, Jiawei 2; Li, Wenqiang 2; Li, Shuaihu 3; Zhang, Jian 1,2; Zhou, Huang 2; Zhang, Chengtian 2; Zhang, Jianan 4; Mu, Shichun 2
刊名	SMALL
	2018-05-24
卷号	14 期号:21
关键词	3D porous carbon DFT calculation N/S-codoping oxygen reduction reaction Zn-air batteries
ISSN号	1613-6810
DOI	10.1002/smll.201800563
英文摘要	Developing a facile and cost-efficient method to synthesize carbon-based nanomaterials possessing excellent structural and functional properties has become one of the most attractive topics in energy conversion and storage fields. In this study, density functional theory calculation results reveal the origin of high oxygen reduction reaction (ORR) activity predominantly derived from the synergistic effect of intrinsic defects and heteroatom dopants (e.g., N, S) that modulate the bandgap and charge density distribution of carbon matrix. Under the guidance of the first-principle prediction, by using ultralight biomass waste as precursor of C, N, and S elements, a defect-rich and N/S dual-doped cheese-like porous carbon nanomaterial is successfully designed and constructed. Herein, the intrinsic defects are artfully generated in terms of alkaline and ammonia activation. The electrochemical measurements display that such a material owns a comparable ORR activity (E-1/2= 0.835 V) to the commercial Pt/C catalyst, along with splendid durability and methanol tolerance in alkali media. Furthermore, as cathode catalyst, it displays a high Zn-air battery performance. The excellent ORR activity of the catalyst can be attributed to its unique 3D porous architecture, abundant intrinsic defects, and high-content active heteroatom dopants in the carbon matrix.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000434173300023
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32638]
专题	兰州理工大学
作者单位	1.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China; 2.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China; 3.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China; 4.Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Jiawei,Li, Wenqiang,Li, Shuaihu,et al. Defective N/S-Codoped 3D Cheese-Like Porous Carbon Nanomaterial toward Efficient Oxygen Reduction and Zn-Air Batteries[J]. SMALL,2018,14(21).
APA	Zhu, Jiawei.,Li, Wenqiang.,Li, Shuaihu.,Zhang, Jian.,Zhou, Huang.,...&Mu, Shichun.(2018).Defective N/S-Codoped 3D Cheese-Like Porous Carbon Nanomaterial toward Efficient Oxygen Reduction and Zn-Air Batteries.SMALL,14(21).
MLA	Zhu, Jiawei,et al."Defective N/S-Codoped 3D Cheese-Like Porous Carbon Nanomaterial toward Efficient Oxygen Reduction and Zn-Air Batteries".SMALL 14.21(2018).