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- Title
Completely Green Synthesis of Colloid Adams' Catalyst α-PtO<sub>2</sub> Nanocrystals and Derivative Pt Nanocrystals with High Activity and Stability for Oxygen Reduction.
- Authors
Gao, Min-Rui; Lin, Zhao-Yang; Jiang, Jun; Cui, Chun-Hua; Zheng, Ya-Rong; Yu, Shu-Hong
- Abstract
We report a first solution strategy for controlled synthesis of Adams' catalyst (i.e., α-PtO2) by a facile and totally green approach using H2PtCl6 and water as reactants. The prepared α-PtO2 nanocrystals (NCs) are ultrasmall in size and have very 'clean' surfaces, which can be reduced to Pt NCs easily in ethanol under ambient conditions. Such Adams' catalysts have been applied as electrocatalysts beyond the field of heterogeneous catalysis. Noticeably, the water-only synthesized α-PtO2 NCs and their derivative Pt NCs all exhibit much higher oxygen reduction reaction (ORR) activities and stabilities than that of the state-of-art Pt/C electrocatalysts. This study provides an example on the organics-free synthesis of α-PtO2 and Pt NCs as promising cathode catalysts for fuel cell applications and, particularly, this simple, straightforward method may open a new way for the synthesis of other 'clean' functional nanomaterials.
- Publication
Chemistry - A European Journal, 2012, Vol 18, Issue 27, p8423
- ISSN
0947-6539
- Publication type
Academic Journal
- DOI
10.1002/chem.201200353