PdM (M=Fe, Co, Ni) Bimetallic Nanowires Enhances Oxygen Reduction Catalysis in Acid Medium

Author:

Yu Dan1,Dong Seng2,Liu Qian1,jia weiyi2,Gao Faming3,wang yatao2

Affiliation:

1. Yanshan University

2. Coal Chemical R&D Centr of Kailuan Group

3. Tianjin University of Science & Technology

Abstract

Abstract The preparation of platinum-free electrocatalysts with ideal oxygen reduction reaction (ORR) activity is of great significance for cost-effective fuel cells. Herein, we developed a facile method for prepared Pd-based (PdFe, PdCo, PdNi, and Pd) nanowires (PdM NWs) with diameter about 10 nm and length above microns. The mass activity of the series of Pd-based catalysts followed the descending order: PdNi NWs/C > commercial Pt/C > PdCo NWs/C > PdFe NWs/C > pure Pd NWs/C. The optimal half-wave (E1/2) of PdNi NWs/C (839 mV) is positive shift 138 and 25 mV compared with pure Pd NWs/C (701 mV) and commercial Pt/C (814 mV), respectively. The mass activity (MA) of PdNi NWs/C only dropped 28 % after 10000 potential cycles between 0.6-1.1 V versus RHE in acid medium. This work provides a promising and reliable strategy to synthesize high performance Pd-based electrocatalyst, which is promising alternative to expensive Pt-based electrocatalysts for fuel cells.

Publisher

Research Square Platform LLC

Reference52 articles.

1. Ultrafine Pt-Based Nanowires for Advanced Catalysis;Xu H;Advanced Functional Materials,2020

2. Recent advances in palladium-based electrocatalysts for fuel cell reactions and hydrogen evolution reaction;Zhang L;Nano Energy,2016

3. Luo, M.; Sun, Y.; Zhang, X.; Qin, Y.; Li, M.; Li, Y.; Li, C.; Yang, Y.; Wang, L.; Gao, P.; Lu, G.; Guo, S., Stable High-Index Faceted Pt Skin on Zigzag-Like PtFe Nanowires Enhances Oxygen Reduction Catalysis. Advanced materials 2018, 30.

4. Facile fabrication of PdRuPt nanowire networks with tunable compositions as efficient methanol electrooxidation catalysts;Shang C;Nano Research,2018

5. Atomic PdAu Interlayer Sandwiched into Pd/Pt Core/Shell Nanowires Achieves Superstable Oxygen Reduction Catalysis;Tao L;ACS nano,2020

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