B, P-co-doped PdCu nanothorn assemblies for enhanced oxygen reduction electrolysis. (5th November 2022)

• Record Type: Journal Article
• Authors: Wang, Hongjing; Chen, Hongyong; Yin, Shuli; Mao, Qiqi; Li, Chunjie; Xu, You; Li, Xiaonian; Wang, Ziqiang; Wang, Liang
• Is Part Of: Nanotechnology. Volume 33:Number 45(2022)
• Publication Date: 2022-11-05
• Subjects: fuel cell -- dual-element doping -- nanothorn assembly -- electronic effect -- oxygen reduction reaction; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ac83c9
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Nonmetal doping is a promising strategy to improve electrocatalytic performance of noble metal based catalysts for oxygen reduction reaction (ORR). Herein, we report a facile method to fabricate PdCuBP nanothorn assemblies (PdCuBP NTAs) by co-doping B and P into pre-synthesized PdCu NTAs using NaBH4 and NaH2 PO2 as B source and P source, respectively. The metal-nonmetal structure and multi-branched morphology can optimize oxygen adsorption energy and avoid catalyst migration, agglomeration and Ostwald ripening. As such, the obtained PdCuBP NTAs exhibit efficient activity and excellent long-term stability for ORR. This research offers an excellent strategy for co-doping nonmetal elements into metal nanocrystals with controllable composition and structure to improve electrocatalytic ORR performance.