Morphological effect of lanthanum-based supports on the catalytic performance of Pt catalysts in crotonaldehyde hydrogenation | |
Department | OSSO国家重点实验室 |
Hou FJ(候风君)1,2; Zhao HH(赵华华)1; Zhao J(赵军)1; Yang J(杨建)1; Yan L(闫亮)1; Song HL(宋焕玲)1; Chou LJ(丑凌军)1; Song HL(宋焕玲); Chou LJ(丑凌军) | |
2016 | |
Source Publication | Journal of Nanoparticle Research |
ISSN | 1388-0764 |
Volume | 18Issue:3Pages:66(1-17) |
Abstract | Rod-like and particle-like La2O2CO3 and La2O3 were obtained via morphology-preserved thermal transformation of the La(OH)3 precursors. La2O2CO3- and La2O3-supported Pt catalysts were prepared by impregnation method and tested in the liquid-phase crotonaldehyde hydrogenation reaction. The textural and physicochemical properties of the samples were studied by a series of techniques including XRD, TG-DSC, N2 adsorption–desorption, TEM and HRTEM, IR spectrum, H2-TPD, and H2-TPR. Even after 600 °C reduction, Pt particles of about 0.8–2.8 nm interplayed with support surface to form Pt-doped interface, thereby preventing the catalysts from migration and affording a high dispersion of platinum. The specific exposed crystal-facets and surface oxygen species depending on the shape of the support affected the preferential deposition of Pt species and the metal-support interaction. Thus, Pt catalysts performed different physicochemical properties and catalytic performance relying on the morphology and structure of the supports. During the cycle experiment, severe deactivation was observed for NP-supported catalysts with an increased selectivity due to the aggregation and growth of Pt particles. Meantime, the NR-supported catalysts retained relatively high reactivity as a consequence of the crystal-facet confinement of rod-shaped lanthanum supports. |
Keyword | Lanthanum Nanorods Platinum Selective Hydrogenation Nanostructured Catalysts |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1007/s11051-016-3373-6 |
Funding Organization | the Western Light Program of Chinese Academy of Sciecces (2015);the National Science Foundation of China (21401204) |
Indexed By | SCI |
If | 2.020 |
Language | 英语 |
Funding Project | 多相选择氧化课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19763 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Song HL(宋焕玲); Chou LJ(丑凌军) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Hou FJ,Zhao HH,Zhao J,et al. Morphological effect of lanthanum-based supports on the catalytic performance of Pt catalysts in crotonaldehyde hydrogenation[J]. Journal of Nanoparticle Research,2016,18(3):66(1-17). |
APA | Hou FJ.,Zhao HH.,Zhao J.,Yang J.,Yan L.,...&丑凌军.(2016).Morphological effect of lanthanum-based supports on the catalytic performance of Pt catalysts in crotonaldehyde hydrogenation.Journal of Nanoparticle Research,18(3),66(1-17). |
MLA | Hou FJ,et al."Morphological effect of lanthanum-based supports on the catalytic performance of Pt catalysts in crotonaldehyde hydrogenation".Journal of Nanoparticle Research 18.3(2016):66(1-17). |
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