Literature DB >> 15113224

Chemoselective hydrogenation catalysts: Pt on mesostructured CeO2 nanoparticles embedded within ultrathin layers of SiO2 binder.

Patricia Concepción1, Avelino Corma, Joaquín Silvestre-Albero, Victor Franco, Jean Y Chane-Ching.   

Abstract

Pt on mesostructured CeO(2) nanoparticles embedded within ultrathin layers of highly structured SiO(2) binder shows highest activity reported with 80% selectivity for the chemoselective hydrogenation of crotonaldehyde. Characterization by transmission electron microscopy (TEM), CO adsorption, and X-ray photoelectron spectroscopy (XPS) show the presence of small Pt metal particles, preferentially located on CeO(2) (70%) together with the formation of Pt-CeO(2-x) sites at the interface between Pt and CeO(2) (4 nm) nanoparticles. These sites are able to polarize the carbonyl group and facilitate the selective hydrogenation of this with respect to the double bond.

Entities:  

Year:  2004        PMID： 15113224     DOI： 10.1021/ja031768x

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  2 in total

1.  Facile Synthesis of CeO₂-LaFeO₃ Perovskite Composite and Its Application for 4-(Methylnitrosamino)-1-(3-Pyridyl)-1-Butanone (NNK) Degradation.

Authors:  Kaixuan Wang; Helin Niu; Jingshuai Chen; Jiming Song; Changjie Mao; Shengyi Zhang; Saijing Zheng; Baizhan Liu; Changle Chen
Journal:  Materials (Basel)       Date:  2016-04-29       Impact factor: 3.623

2.  Novel mesoporous Ag@SiO2 nanospheres as a heterogeneous catalyst with superior catalytic performance for hydrogenation of aromatic nitro compounds.

Authors:  Wenyan Li; Xinying Lin; Jing Long; Bo Zheng; Zhaorui Pan; Leiming Lang; Guangxiang Liu
Journal:  RSC Adv       Date:  2021-11-23       Impact factor: 4.036
  2 in total

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