Top- down fabrication of active interface between TiO 2 and Pt nanoclusters. Part 1: Redispersion process and mechanism
文献类型：期刊论文
| 作者 | Du, Xiaorui6,7; Huang, Yike5,7; Pan, Xiaoli7; Jiang, Xunzhu4,7; Su, Yang7; Yang, Jingyi7; Guo, Yalin3,7; Han, Bing2,7; Wen, Chengyan6; Wang, Chenguang1,6 |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 58页码:237-246 |
| 关键词 | Heterogeneous catalysis Nanocluster Redispersion Metal-oxide interface CO oxidation |
| ISSN号 | 0253-9837 |
| DOI | 10.1016/S1872-2067(23)64597-8 |
| 通讯作者 | Wang, Chenguang(wangcg@ms.giec.ac.cn) ; Qiao, Botao(bqiao@dicp.ac.cn) |
| 英文摘要 | Supported metal nanoclusters (NCs) are regarded as the next generation of catalyst that bridge the nanocatalyst and single -atom catalyst. However, feasible fabrication of thermally stable NCs has remained a daunting challenge. In this paper, the first part of an extended work, we report a simple route to fabricate Pt NCs in size of around 1 nm through redispersion of Pt nanoparticles (NPs) or commercial PtO 2 by a calcination treatment. Combining control experiments and detailed DFT simulation, the whole redispersion process was described and evidenced to proceed via a gas -phase trapping way: Under promotion of oxygen atmosphere and high temperature, volatile oxidized Pt monomers were firstly generated and then trapped by surface defects, forming special sites that preferentially induce the growth of clusters on them. The growing clusters have both size- and temperature -dependent stability, resulting a most stable size distribution of around 1 nm when fabricated at 550 degrees C. This work provides a feasible top -down strategy to fabricate highly dispersed metal clusters. (c) 2024, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | SINGLE-ATOM CATALYSTS ; SUPPORTED METAL-CATALYSTS ; PLATINUM CLUSTERS ; IN-SITU ; NANOPARTICLES ; SIZE ; CO ; OXIDATION ; DISPERSION ; GOLD |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001219235600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41616]  |
| 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 Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Petr & Petrochem Co Ltd, SINOPEC Dalian Res Inst, Dalian 116023, Liaoning, Peoples R China 3.Chongqing Univ, Inst Adv Interdisciplinary Studies, Multiscale Porous Mat Ctr, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Artificial Intelligence Sci Inst, Beijing 100000, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 7.Chinese Acad Sci, CAS Key Lab Sci & Technol Appl Catalysis, Dalian Inst Chem Phys, Dalian 116023, Liaoning, 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 TiO 2 and Pt nanoclusters. Part 1: Redispersion process and mechanism[J]. CHINESE JOURNAL OF CATALYSIS,2024,58:237-246. |
| APA | Du, Xiaorui.,Huang, Yike.,Pan, Xiaoli.,Jiang, Xunzhu.,Su, Yang.,...&Qiao, Botao.(2024).Top- down fabrication of active interface between TiO 2 and Pt nanoclusters. Part 1: Redispersion process and mechanism.CHINESE JOURNAL OF CATALYSIS,58,237-246. |
| MLA | Du, Xiaorui,et al."Top- down fabrication of active interface between TiO 2 and Pt nanoclusters. Part 1: Redispersion process and mechanism".CHINESE JOURNAL OF CATALYSIS 58(2024):237-246. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。