Fabrication of Rhodium Nanoparticles with Reduced Sizes: An Exploration of Confined Spaces

Li Huang; Zhi Min Xing; Yu Kou; Li Ying Shi; Xiao Qin Liu; Yao Jiang; Lin Bing Sun

doi:10.1021/acs.iecr.7b04314

Fabrication of Rhodium Nanoparticles with Reduced Sizes: An Exploration of Confined Spaces

Li Huang, Zhi Min Xing, Yu Kou, Li Ying Shi, Xiao Qin Liu, Yao Jiang, Lin Bing Sun

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The catalytic activity of supported noble metal nanoparticles (NPs) is strongly dependent on their size. However, it is still a pronounced challenge to develop a facile method to reduce the size of noble metal NPs. Here we report a facile but efficient strategy by utilizing confined spaces between templates and silica walls in as-prepared SBA-15 (AS) to regulate the size of a well-known noble metal, rhodium (Rh). Rh NPs formed in confined spaces possess obviously smaller size than their counterparts generated in traditional calcined SBA-15 (CS) without confined spaces. Our results also demonstrate that the obtained materials are highly active in CO oxidation. For a typical material 5.0RhAS containing 5.02 wt % of Rh, the complete conversion of CO is achieved at 70 °C, which is evidently lower than that of its analogue 5.0RhCS (102 °C).

Original language	English
Pages (from-to)	3561-3566
Number of pages	6
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	10
DOIs	https://doi.org/10.1021/acs.iecr.7b04314
State	Published - 14 Mar 2018

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title = "Fabrication of Rhodium Nanoparticles with Reduced Sizes: An Exploration of Confined Spaces",

abstract = "The catalytic activity of supported noble metal nanoparticles (NPs) is strongly dependent on their size. However, it is still a pronounced challenge to develop a facile method to reduce the size of noble metal NPs. Here we report a facile but efficient strategy by utilizing confined spaces between templates and silica walls in as-prepared SBA-15 (AS) to regulate the size of a well-known noble metal, rhodium (Rh). Rh NPs formed in confined spaces possess obviously smaller size than their counterparts generated in traditional calcined SBA-15 (CS) without confined spaces. Our results also demonstrate that the obtained materials are highly active in CO oxidation. For a typical material 5.0RhAS containing 5.02 wt % of Rh, the complete conversion of CO is achieved at 70 °C, which is evidently lower than that of its analogue 5.0RhCS (102 °C).",

author = "Li Huang and Xing, {Zhi Min} and Yu Kou and Shi, {Li Ying} and Liu, {Xiao Qin} and Yao Jiang and Sun, {Lin Bing}",

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T1 - Fabrication of Rhodium Nanoparticles with Reduced Sizes

T2 - An Exploration of Confined Spaces

AU - Huang, Li

AU - Xing, Zhi Min

AU - Kou, Yu

AU - Shi, Li Ying

AU - Liu, Xiao Qin

AU - Jiang, Yao

AU - Sun, Lin Bing

PY - 2018/3/14

Y1 - 2018/3/14

N2 - The catalytic activity of supported noble metal nanoparticles (NPs) is strongly dependent on their size. However, it is still a pronounced challenge to develop a facile method to reduce the size of noble metal NPs. Here we report a facile but efficient strategy by utilizing confined spaces between templates and silica walls in as-prepared SBA-15 (AS) to regulate the size of a well-known noble metal, rhodium (Rh). Rh NPs formed in confined spaces possess obviously smaller size than their counterparts generated in traditional calcined SBA-15 (CS) without confined spaces. Our results also demonstrate that the obtained materials are highly active in CO oxidation. For a typical material 5.0RhAS containing 5.02 wt % of Rh, the complete conversion of CO is achieved at 70 °C, which is evidently lower than that of its analogue 5.0RhCS (102 °C).

AB - The catalytic activity of supported noble metal nanoparticles (NPs) is strongly dependent on their size. However, it is still a pronounced challenge to develop a facile method to reduce the size of noble metal NPs. Here we report a facile but efficient strategy by utilizing confined spaces between templates and silica walls in as-prepared SBA-15 (AS) to regulate the size of a well-known noble metal, rhodium (Rh). Rh NPs formed in confined spaces possess obviously smaller size than their counterparts generated in traditional calcined SBA-15 (CS) without confined spaces. Our results also demonstrate that the obtained materials are highly active in CO oxidation. For a typical material 5.0RhAS containing 5.02 wt % of Rh, the complete conversion of CO is achieved at 70 °C, which is evidently lower than that of its analogue 5.0RhCS (102 °C).

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Fabrication of Rhodium Nanoparticles with Reduced Sizes: An Exploration of Confined Spaces

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