期刊
NANO RESEARCH
卷 8, 期 8, 页码 2706-2713出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-015-0777-z
关键词
porous Pt-Fe nanocrystals (NCs); self-assembly; acetone hydrogenation; highly active; good stability; interface effect
类别
资金
- National Basic Research Program of China [2011CB932401, 2011CBA00500, 2012CB224802]
- National Natural Science Foundation of China [21221062, 21171105, 21322107, 21131004]
Porous Pt-Fe bimetallic nanocrystals have been synthesized via self-assembly and can effectively facilitate the synthesis of 2-propanol from acetone. The bimetallic catalyst has three-dimensional channels and shows turnover frequencies (TOFs) of up to 972 h(-1) for a continuous process more than 50 h. Preliminary mechanistic studies suggest that the high reactivity is related to the interface consisting of a bimetallic Pt-Fe alloy and Fe2O3-x . An understanding of real catalytic behavior and the catalytic mechanism based on model systems has been shown to help fabricate an improved Pt/Fe3O4 catalyst with increased activity and lifetime which has great potential for large-scale industrial applications.
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