Iron-nitrogen dual-doped three-dimensional mesoporous carbons for high-activity electrocatalytic oxygen reduction

doi:10.1016/j.apmt.2018.09.008

	Iron-nitrogen dual-doped three-dimensional mesoporous carbons for high-activity electrocatalytic oxygen reduction
	Lin, Gaoxin 1; Ma, Ruguang 1; Zhou, Yao 1; Liu, Qian 1; Hu, Chun 1; Yang, Minghui 2; Wang, Jiacheng 1
刊名	Applied Materials Today
	2018
卷号	13 页码:174-181
DOI	10.1016/j.apmt.2018.09.008
英文摘要	To improve the efficiency of oxygen reduction reaction (ORR) on non-precious metal electrocatalyst, designing three-dimensional porous catalysts with abundant exposed active sites, accessible catalytic surface and excellent stability are of significant interest. Herein, we prepared Fe/N co-doped mesoporous carbons (FeNMCs) via a facile aggregation of renewable biomass flour, dicyanamide, colloidal silica and anhydrous ferric chloride, followed by carbonizing at 900 °C in N2 atmosphere. The optimal catalyst (FeNMC-2) possesses interconnected uniform mesopores of ∼12.9 nm, large surface area of 769.5 m2 g−1, high nitrogen-doping level and atomically dispersed Fe-Nx active species. The developed porous texture is advantageous for not only promoting the formation of Fe-N coordinated functional species and the accessibility of catalytic sites, but also facilitating the transport of reactants and products during the ORR process. For the ORR, the optimized FeNMC-2 displays excellent electrocatalytic performance, which even outperforms commercial Pt/C. Furthermore, the control experiments verify that the high ORR activity should be ascribed to uniformly dispersed Fe-Nx sites within the framework of 3D porous carbons. The present strategy can be extended to design and prepare other metal, N-co-doped porous carbons with great potentials in energy conversion and storage. © 2018 Elsevier Ltd
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25213]
专题	中国科学院上海硅酸盐研究所
作者单位	1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai; 200050, China; 2.Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo; 315201, China
推荐引用方式 GB/T 7714	Lin, Gaoxin,Ma, Ruguang,Zhou, Yao,et al. Iron-nitrogen dual-doped three-dimensional mesoporous carbons for high-activity electrocatalytic oxygen reduction[J]. Applied Materials Today,2018,13:174-181.
APA	Lin, Gaoxin.,Ma, Ruguang.,Zhou, Yao.,Liu, Qian.,Hu, Chun.,...&Wang, Jiacheng.(2018).Iron-nitrogen dual-doped three-dimensional mesoporous carbons for high-activity electrocatalytic oxygen reduction.Applied Materials Today,13,174-181.
MLA	Lin, Gaoxin,et al."Iron-nitrogen dual-doped three-dimensional mesoporous carbons for high-activity electrocatalytic oxygen reduction".Applied Materials Today 13(2018):174-181.