Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts
Xin, PY; Li, J; Xiong, Y; Wu, X; Dong, JC; Chen, WX; Wang, Y; Gu, L; Luo, J; Rong, HP; Chen, C; Peng, Q; Wang, DS; Li, YD
2018
发表期刊ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
卷号57期号:17页码:4642-4646
文章类型期刊论文
摘要The active species in supported metal catalysts are elusive to identify, and large quantities of inert species can cause significant waste. Herein, using a stoichiometrically precise synthetic method, we prepare atomically dispersed palladium-cerium oxide (Pd-1/CeO2) and hexapalladium cluster-cerium oxide (Pd-6/CeO2), as confirmed by spherical-aberration-corrected transmission electron microscopy and X-ray absorption fine structure spectroscopy. For aerobic alcohol oxidation, Pd-1/CeO2 shows extremely high catalytic activity with a TOF of 6739 h(-1) and satisfactory selectivity (almost 100% for benzaldehyde), while Pd-6/CeO2 is inactive, indicating that the true active species are single Pd atoms. Theoretical simulations reveal that the bulkier Pd-6 clusters hinder the interactions between hydroxy groups and the CeO2 surface, thus suppressing synergy of Pd-Ce perimeter.
关键词Single-atom Metal Nanoparticles Benzyl Alcohol Gold Pd Hydrogenation Dehydration Reactivity Mechanism Graphene
DOI10.1002/anie.201801103
收录类别SCI
语种英语
WOS记录号WOS:000430165700034
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29123
专题中科院上海应用物理研究所2011-2018年
作者单位1.Xin, PY
2.Li, J
3.Xiong, Y
4.Wu, X
5.Dong, JC
6.Chen, WX
7.Wang, Y
8.Gu, L
9.Luo, J
10.Rong, HP
11.Chen, C
12.Peng, Q
13.Wang, DS
14.Li, YD
推荐引用方式
GB/T 7714
Xin, PY,Li, J,Xiong, Y,et al. Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(17):4642-4646.
APA Xin, PY.,Li, J.,Xiong, Y.,Wu, X.,Dong, JC.,...&Li, YD.(2018).Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(17),4642-4646.
MLA Xin, PY,et al."Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.17(2018):4642-4646.
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