期刊
NANOSCALE
卷 4, 期 21, 页码 6835-6840出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr31713c
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资金
- National Basic Research Program of China [2010CB934700, 2011CB933700]
- Chinese Academy of Sciences
- National Natural Science Foundation of China [20971118]
Direct fabrication of core-shell or yolk-shell functional nanomaterials via a facile template-free method remains a challenge. In this work, we present a novel approach that involves straightforward chemical transformation and thermal treatment of the infinite coordination polymer particles to obtain composition-tunable CeO2 yolk-shell structures. Uniform CeO2 yolk-shell hollow spheres with a high surface area are promising support materials for tiny gold nanoparticles (ca. 4 nm), forming Au-CeO2 nanocomposites which exhibit a remarkable catalytic activity and high stability for the reduction of p-nitrophenol. A possible mechanism for the formation of CeO2 yolk-shell microspheres is also proposed.
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