期刊
NANOSCALE
卷 6, 期 12, 页码 7019-7024出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr00313f
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资金
- National Basic Research Program of China [2011CBA00508, 2013CB933901]
- National Natural Science Foundation of China [21131005, 21333008, 21171141, J1030415]
Platinum based alloy nanocrystals are promising catalysts for a variety of important practical process. However, it remains a great challenge to synthesize platinum-based intermetallic compound nanocrystals with well-defined surface structures. In this communication, taking the synthesis of concave cubic intermetallic Pt3Zn nanocrystals with {hk0} facets as an example, we proposed a new synthesis strategy for intermetallic compounds by reduction of noble metal precursors via a slow reduction process and reduction of transition metal ions via an underpotential deposition (UPD) process in wet chemical synthesis. The as-prepared intermetallic Pt3Zn nanocrystals exhibited superior CO poisoning tolerance and high electro-catalytic activity in both methanol and formic acid oxidation reactions in comparison with solid solution Pt3Zn nanocrystals and Pt/C.
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