Insight into the structure evolution and the associated catalytic behavior of highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods | |
Department | OSSO国家重点实验室 |
Hou FJ(候风君)1,2; Zhao HH(赵华华)1; Song HL(宋焕玲)1; Chou LJ(丑凌军)1,3; Zhao J(赵军)1; Yang J(杨建)1; Yan L(闫亮)1; Chou LJ(丑凌军); Song HL(宋焕玲) | |
The second department | 苏州研究院 |
2017 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 7Issue:77Pages:48649-48661 |
Abstract | The current work introduces highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods prepared via ultrasonic impregnation, which are used as probe catalysts for the liquid-phase crotonaldehyde hydrogenation. The physicochemical properties of the catalysts are assessed by means of various techniques, including XRD, TEM, XPS, H2-TPD, in situ CO-DRIFT and X-ray adsorption fine structure (XAS). A close combination of catalyst surface experiments and the reactive performances reveals that the distinct reactive performance of the Pt and PtSn catalysts is tentatively attributed to the composition-dependent architecture of Pt–lanthanum interfaces and bimetallic particles while excluding the particle size effect. Catalytic activity tests demonstrate that incorporation of Sn into Pt catalyst brings great significance to the selective hydrogenation of carbonyl groups as it results into the structure evolution of bimetallic particles. An optimization of Sn loading and reaction conditions achieves a 5-fold and 7-fold improvement in the selectivity and yield to crotyl alcohol over the parent Pt catalyst. Lastly, it is found from the catalyst reusability study that metal particles of PtSn catalysts suffers easily from particle migration and growth compared to the Pt catalyst, most likely resulting from a weaker metal–support interaction. |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1039/c7ra10084a |
Funding Organization | the National Science Foundation of China (21401204);Innovation Promotion Association CAS (2017460);the Western Light Program of Chinese Academy of Sciences (2015);Science and Technology Project of Suzhou City (SYG201627) |
Indexed By | SCI |
If | 3.108 |
Language | 英语 |
Funding Project | 多相催化-1研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22759 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) 苏州研究院 |
Corresponding Author | Chou LJ(丑凌军); Song HL(宋焕玲) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Suzhou Res Inst LICP, Suzhou 215123, Peoples R China |
Recommended Citation GB/T 7714 | Hou FJ,Zhao HH,Song HL,et al. Insight into the structure evolution and the associated catalytic behavior of highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods[J]. RSC Advances,2017,7(77):48649-48661. |
APA | Hou FJ.,Zhao HH.,Song HL.,Chou LJ.,Zhao J.,...&宋焕玲.(2017).Insight into the structure evolution and the associated catalytic behavior of highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods.RSC Advances,7(77),48649-48661. |
MLA | Hou FJ,et al."Insight into the structure evolution and the associated catalytic behavior of highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods".RSC Advances 7.77(2017):48649-48661. |
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