Facile synthesis of Pt-decorated Ir black as a bifunctional oxygen catalyst for oxygen reduction and evolution reactions

doi:10.1039/c9nr00279k

	Facile synthesis of Pt-decorated Ir black as a bifunctional oxygen catalyst for oxygen reduction and evolution reactions
	Fang, Dahui 1,2; Tang, Xuejun 1,2; Yang, Limeng 1,2; Xu, Dongyan 3; Zhang, Hongjie 1; Sun, Shucheng 1; Shao, Zhigang 1; Yi, Baolian 1
刊名	NANOSCALE
	2019-05-14
卷号	11 期号:18 页码:9091-9102
ISSN号	2040-3364
DOI	10.1039/c9nr00279k
通讯作者	Shao, Zhigang(zhgshao@dicp.ac.cn)
英文摘要	Pt-Decorated Ir black (Pt@Ir) nanoparticles with two varying Pt mass fractions (Pt-4@Ir-96 and Pt-16@Ir-84) were generated by a facile method in water with the aid of Ir black. The Pt@Ir nanoparticles were investigated as a bifunctional oxygen catalysts for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in acidic medium. Benefiting from the good dispersion of ultrafine Pt nanodots on the Ir black surface and the synergistic effect between the Pt and underlying Ir atoms, Pt@Ir nanoparticles have exhibited outstanding ORR activity and comparable OER performance in comparison with commercial Ir black. In particular, Pt-16@Ir-84 shows an ORR mass activity of 2.6 times that of commercial Pt black and exhibits much better bifunctional performances than a mixture of Pt black and Ir black with a Ir/Pt mass ratio of 50/50 (Pt50Ir50). Our work highlights the effectiveness of decorating Ir black with Pt nanodots to fabricate bifunctional oxygen catalysts.
资助项目	National Major Research Project[2018YFB0106503] ; National Natural Science Foundation of China[21576257] ; Natural Science Foundation-Liaoning United Fund[U1508202]
WOS关键词	MONOLAYER ELECTROCATALYSTS ; ELECTRODE ; NANOPARTICLES ; STABILITY ; PLATINUM ; IRIDIUM ; LAYER ; OXIDE ; OPTIMIZATION ; NANOCRYSTALS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000469245300044
资助机构	National Major Research Project ; National Major Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation-Liaoning United Fund ; Natural Science Foundation-Liaoning United Fund ; National Major Research Project ; National Major Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation-Liaoning United Fund ; Natural Science Foundation-Liaoning United Fund ; National Major Research Project ; National Major Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation-Liaoning United Fund ; Natural Science Foundation-Liaoning United Fund ; National Major Research Project ; National Major Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation-Liaoning United Fund ; Natural Science Foundation-Liaoning United Fund
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/172047]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Shao, Zhigang
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, 99 Songling Rd, Qingdao 266042, Peoples R China
推荐引用方式 GB/T 7714	Fang, Dahui,Tang, Xuejun,Yang, Limeng,et al. Facile synthesis of Pt-decorated Ir black as a bifunctional oxygen catalyst for oxygen reduction and evolution reactions[J]. NANOSCALE,2019,11(18):9091-9102.
APA	Fang, Dahui.,Tang, Xuejun.,Yang, Limeng.,Xu, Dongyan.,Zhang, Hongjie.,...&Yi, Baolian.(2019).Facile synthesis of Pt-decorated Ir black as a bifunctional oxygen catalyst for oxygen reduction and evolution reactions.NANOSCALE,11(18),9091-9102.
MLA	Fang, Dahui,et al."Facile synthesis of Pt-decorated Ir black as a bifunctional oxygen catalyst for oxygen reduction and evolution reactions".NANOSCALE 11.18(2019):9091-9102.