Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)
	Yang, Minghui; Khan, Karim; Tareen, Ayesha Khan; Li, Jia; Khan, Usman; Nairan, Adeela; Yuan, Yao; Zhang, Xuyang; Ouyang, Zhengbiao
刊名	DALTON TRANSACTIONS
	2018
卷号	47 期号:38 页码:13498-13506
关键词	Dot 7al(2)o(3) Electride Reduced Graphene Oxide Organic Framework Stable Electride Single-crystal Hydrogen 12cao-center-dot-7al(2)o(3) Fabrication Anions Co
英文摘要	D In this study, we synthesized nanosized Sn-doped C12A7:e(-) (C12Al7-xSnx:e(-), where x = 0.20 to 1) composite with high surface area of 244 m(2) g(-1). An increasing trend in conductivity of Sn-doped C12A7:e(-) composites was observed at 300 K: 24 S cm(-1), 68 S cm(-1), 190 S cm(-1) and 290 S cm(-1), at doping levels of x = 0.20, 0.40, 0.80, and 1, respectively. Sn-doped C12A7:e(-), with and without reduced graphene oxide (rGO), acts as a less expensive and highly active and durable electrocatalyst in the oxygen reduction reaction (ORR) for fuel cells. In the case of C(12)A(7-x)Sn(x):e(-) (where x = 1), calculated onset potential and current density were comparable to the commercially available 20% Pt/C electrode. Moreover, significant improvement was observed for Sn-doped C12A7:e(-) (doping level x = 1) with rGO composite. The ORR current density was about 5.9 mA cm(-2), which was higher than that of Pt/C (5.2 mA cm(-2)). Our investigation of the effect of cation doping on structural and electrical properties of Sn-doped C12A7:e(-) composites shows that these results manifested the feasibility of this sol-gel method for different element doping. Furthermore, the as-prepared promising non-noble metal catalysts (NNMCs), viz., Sn-doped C12A7:e(-) composite materials, possess intrinsic long-time stability and excellent methanol resistance toward ORR in alkaline media and may serve as a promising alternative to Pt/C materials for ORR in its widespread implementation in fuel cells.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17129]
专题	2018专题
推荐引用方式 GB/T 7714	Yang, Minghui,Khan, Karim,Tareen, Ayesha Khan,et al. Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)[J]. DALTON TRANSACTIONS,2018,47(38):13498-13506.
APA	Yang, Minghui.,Khan, Karim.,Tareen, Ayesha Khan.,Li, Jia.,Khan, Usman.,...&Ouyang, Zhengbiao.(2018).Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR).DALTON TRANSACTIONS,47(38),13498-13506.
MLA	Yang, Minghui,et al."Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR)".DALTON TRANSACTIONS 47.38(2018):13498-13506.