Deposition of palladium nanoparticles in SBA-15 templated silica using supercritical carbon dioxide

被引：16

作者：

Hunt, Andrew J. ^{[1
]}

Budarin, Vitaliy L. ^{[1
]}

Comerford, James W. ^{[1
]}

Parker, Helen L. ^{[1
]}

Lazarov, Vlado K. ^{[2
]}

Breeden, Simon W. ^{[1
]}

Macquarrie, Duncan J. ^{[1
]}

Clark, James H. ^{[1
]}

机构：

[1] Univ York, Dept Chem, York Y010 5DD, N Yorkshire, England

[2] Univ York, Dept Phys, York Y010 5DD, N Yorkshire, England

来源：

MATERIALS LETTERS | 2014年 / 116卷

关键词：

Porous materials; Nanoparticles; Impregnation; Textural; XPS; MESOPOROUS SILICA; PD; PERFORMANCE; CATALYST; FILMS; OXIDE;

D O I：

10.1016/j.matlet.2013.11.075

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Preparation of supported nanoparticles by palladium deposition onto silica (SBA-15) from a solution of tris(dibenzylideneacetone) dipalladium(0) (Pd-2(dba)(3)) in supercritical carbon dioxide (scCO(2)) was successfully achieved. Pd-2(dba)(3) avoided agglomeration of nanoparticles, which is typically associated with secondary processes including reduction of metal salts. scCO(2) impregnation was superior at depositing palladium nanoparticles within the porous channels of SBA-15, as compared to organic solvents. The resulting material demonstrated significant potential for use in catalytic applications including hydrogenations and showed specific selectivity towards alkene hydrogenation. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：408 / 411

页数：4

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