Rapid crystal growth of bimetallic PdPt nanocrystals with surface atomic Pt cluster decoration provides promising oxygen reduction activity

Kuan Wen Wang, Zhuang Yu, Alice Hu, Yang Yang Hsu, Tian Lin Chen, Cheng Yang Lin, Chih Wei Hu, Ya Tang Yang, Tsan Yao Chen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Carbon nanotube-supported bimetallic Pd nanoparticles (NPs) with atomic Pt cluster surface decoration (the mole ratio of Pt/Pd is 0.1) are synthesized by a wet chemical method with sodium borohydride as the reducing agent. The core component is controlled by metal ion reduction sequences. The mass activity for the oxygen reduction reaction (ORR) over Pt metal of the presented PdPt NPs is improved by 29.4 times as compared to that of commercial Pt catalysts. Such an enhancement is accounted by an expanded Pt-Pd bond length and heteroatomic intermixing-induced electron relocation.

Original languageEnglish
Pages (from-to)55110-55120
Number of pages11
JournalRSC Advances
Volume7
Issue number87
DOIs
StatePublished - 2017

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