Shape Evolution of Metal Nanoparticles in Binary Gas Environment
Meng, J; Zhu, BE; Gao, Y
2018
发表期刊JOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
卷号122期号:11页码:6144-6150
文章类型期刊论文
摘要To control the shape and structure of a metal nanoparticle (NP) is a crucial strategy to improve its catalytic properties, but the understanding and quantitative description of the structure reconstruction of the catalysts under reaction conditions has not been achieved. Previous works are mostly focused on the single gas conditions, which is apparently not the case in the real catalytic reactions. In this work, a multiscale structure reconstruction model is established to describe the equilibrium structures of metal NPs in a mixed gas environment quantitatively. Taking NO and CO reaction as a model system, the structures of the Pd, Pt, and Rh NPs in a large range of temperature and pressure are fully presented. Moreover, we show the variation of P-NO:P-CO Plays the critical role in determining the structures and therefore the number of active sites of the NPs at certain conditions. This work provides an efficient model to guide the future experiments in the real reactions.
关键词In-situ Observation Plus No Reaction Atmospheric-pressure Copper Nanocrystals co+no Reaction Co Adsorption Surface Catalysts Pd Platinum
DOI10.1021/acs.jpcc.8b00052
收录类别SCI
语种英语
WOS记录号WOS:000428356700034
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29132
专题中科院上海应用物理研究所2011-2018年
作者单位1.Meng, J
2.Zhu, BE
3.Gao, Y
推荐引用方式
GB/T 7714
Meng, J,Zhu, BE,Gao, Y. Shape Evolution of Metal Nanoparticles in Binary Gas Environment[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(11):6144-6150.
APA Meng, J,Zhu, BE,&Gao, Y.(2018).Shape Evolution of Metal Nanoparticles in Binary Gas Environment.JOURNAL OF PHYSICAL CHEMISTRY C,122(11),6144-6150.
MLA Meng, J,et al."Shape Evolution of Metal Nanoparticles in Binary Gas Environment".JOURNAL OF PHYSICAL CHEMISTRY C 122.11(2018):6144-6150.
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