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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Equilibrium Shape of Metal Nanoparticles under Reactive Gas Conditions
作者: Zhu, BE; Meng, J; Gao, Y
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
出版日期: 2017
卷号: 121, 期号:10, 页码:5629-5634
DOI: 10.1021/acs.jpcc.6b13021
文章类型: 期刊论文
英文摘要: Characterization and control of the shape of nanoparticles has a primary importance in nanoscience and nanotechnology since most of the physical and chemical properties are shape -dependent. In recent years, many in situ experimental observations have shown that metal nanoparticles can change their shapes and structures dramatically and reversibly under reactive gas conditions. However, despite the experimental achievements, the precise theoretical prediction of this kind of shape evolution is still a challenging and demanding task. In this work, using CO@Pt as a benchmark, we develop a multiscale structure reconstruction model to quantitatively illuminate the equilibrium geometries of metal nanoparticles at given temperature and gas pressure. This model perfectly reproduces the experimental results and explains some intriguing phenomena, including the CO-induced breakup of Pt surfaces. The shape evolution results of Pt, Pd, Cu, and Au nanoparticles under CO and NO gas environments are presented. Our study provides useful guidelines for improving and developing real catalysts.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000396969900020
ISSN号: 1932-7447
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27315
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Zhu, BE,Meng, J,Gao, Y. Equilibrium Shape of Metal Nanoparticles under Reactive Gas Conditions[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017-01-01,121(10):5629-5634.
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