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Top-down fabrication of active interface between TiO2 and Pt nanoclusters. Part 2: Catalytic performance and reaction mechanism in CO oxidation

文献类型：期刊论文

作者Du, Xiaorui1,2; Huang, Yike1,3; Pan, Xiaoli1; Jiang, Xunzhu1,4; Su, Yang1; Yang, Jingyi1; Guo, Yalin1,5; Han, Bing1,6; Wen, Chengyan2; Wang, Chenguang2,7
刊名CHINESE JOURNAL OF CATALYSIS
出版日期2024-03-01
卷号58页码:247-254
关键词Heterogeneous catalysis Nanocluster Redispersion Metal-oxide interface CO oxidation
ISSN号0253-9837
DOI10.1016/S1872-2067(23)64598-X
通讯作者Wang, Chenguang(bqiao@dicp.ac.cn) ; Qiao, Botao(wangcg@ms.giec.ac.cn)
英文摘要In this work, following Part 1 that has found a redispersion process from Pt nanoparticles (NPs, about 3.4 nm) to nanoclusters (NCs, about 1 nm) on TiO 2 and elucidated its mechanism, we carefully investigated the catalytic performance of the obtained Pt NC catalyst in CO oxidation as well as the corresponding reaction mechanism. The Pt NC catalyst excels than its parent catalyst in terms of both intrinsic and apparent activity. Detailed studies by combining kinetic measurements, isotopic labeling reaction experiments, and low-temperature operando FT-IR unambiguously demonstrated that the Pt NCs deposited on TiO 2 can form unique interfacial sites that enable to active O 2 at very low temperature, thus the CO adsorbed on TiO 2 can diffuses to, and reacts with, the activated oxygen, rendering a high activity at low temperatures. This work is contributory in understanding the origin of the high activity of the supported metal cluster catalysts. (c) 2024, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS关键词PLATINUM CLUSTERS ; SIZE ; IDENTIFICATION ; SUPPORT ; IMPACT ; STATE ; FTIR
WOS研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:001214085300001
出版者ELSEVIER
源URL[http://ir.giec.ac.cn/handle/344007/41547]  
专题中国科学院广州能源研究所
通讯作者Wang, Chenguang; Qiao, Botao
作者单位1.Chinese Acad Sci, CAS Key Lab Sci & Technol Appl Catalysis, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
3.Artificial Intelligence Sci Inst, Beijing 100000, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chongqing Univ, Inst Adv Interdisciplinary Studies, Multiscale Porous Mat Ctr, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China
6.SINOPEC Dalian Res Inst Petr & Petrochem Co Ltd, Dalian 116023, Liaoning, Peoples R China
7.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Du, Xiaorui,Huang, Yike,Pan, Xiaoli,et al. Top-down fabrication of active interface between TiO2 and Pt nanoclusters. Part 2: Catalytic performance and reaction mechanism in CO oxidation[J]. CHINESE JOURNAL OF CATALYSIS,2024,58:247-254.
APA Du, Xiaorui.,Huang, Yike.,Pan, Xiaoli.,Jiang, Xunzhu.,Su, Yang.,...&Qiao, Botao.(2024).Top-down fabrication of active interface between TiO2 and Pt nanoclusters. Part 2: Catalytic performance and reaction mechanism in CO oxidation.CHINESE JOURNAL OF CATALYSIS,58,247-254.
MLA Du, Xiaorui,et al."Top-down fabrication of active interface between TiO2 and Pt nanoclusters. Part 2: Catalytic performance and reaction mechanism in CO oxidation".CHINESE JOURNAL OF CATALYSIS 58(2024):247-254.

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来源：广州能源研究所

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