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Jeong, Hu Young
UCRF Electron Microscopy group
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Shape- and Size-Controlled Synthesis in Hard Templates: Sophisticated Chemical Reduction for Mesoporous Monocrystalline Platinum Nanoparticles

Author(s)
Wang, HongjingJeong, Hu YoungImura, MasatakaWang, LiangRadhakrishnan, LoguduraiFujita, NobuhisaCastle, ToenTerasaki, OsamuYamauchi, Yusuke
Issued Date
2011-09
DOI
10.1021/ja2058617
URI
https://scholarworks.unist.ac.kr/handle/201301/9080
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=80052822221
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.133, no.37, pp.14526 - 14529
Abstract
Here we report a novel hard-templating strategy for the synthesis of mesoporous monocrystalline Pt nanopartides (NPs) with uniform shapes and sizes. Mesoporous Pt NPs were successfully prepared through controlled chemical reduction using ascorbic acid by employing 3D bicontinuous mesoporous silica (KIT-6) and 2D mesoporous silica (SBA-15) as a hard template. The particle size could be controlled by changing the reduction time. Interestingly, the Pt replicas prepared from KIT-6 showed polyhedral morphology. The single crystallinity of the Pt fcc structure coherently extended over the whole particle.
Publisher
AMER CHEMICAL SOC
ISSN
0002-7863
Keyword
ALKYLTRIMETHYLAMMONIUM-KANEMITE COMPLEXESLYOTROPIC LIQUID-CRYSTALSSILICA NANOPARTICLESDELIVERY VEHICLEMOLECULAR-SIEVESFACILE SYNTHESISCARBONMETALSCONVERSIONDESIGN

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