Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 45, Pages 18447-18453Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm11461a
Keywords
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Funding
- National Natural Science Foundation of China [20973113, 20825724]
- 973 Project [2009CB226106]
- Shanghai Government [09JC1411400, 10SG41, S30406, 07dz22303]
- State Key Laboratory of Chemical Engineering [SKL-ChE-09C03]
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Hollow Pt-Ni alloy nanospheres with tunable chamber size and shell thickness are prepared through a modified galvanic replacement approach. The strategy for fabricating such hollow alloys is discussed based on systematic characterization. During the liquid-phase p-chloronitrobenzene hydrogenation to p-chloroaniline, these hollow alloy materials exhibit much higher activity, greatly enhanced selectivity and better durability than the solid Pt nanoparticles. Of particular interest is the controllable shell thickness, which allows for tuning of catalytic activity.
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