Confining for Stability: Heterogeneous Catalysis with Transition Metal (Oxide) Nanoparticles Confined in the Secondary Pore Network of Mesoporous Scaffolds

被引：13

作者：

Ciotonea, Carmen ^{[1
,2
,4
]}

Mazilu, Irina ^{[1
,2
]}

Dragoi, Brindusa ^{[2
]}

Catrinescu, Cezar ^{[2
]}

Dumitriu, Emil ^{[2
]}

Ungureanu, Adrian ^{[2
]}

Alamdari, Houshang ^{[3
]}

Petit, Sabine ^{[1
]}

Royer, Sebastien ^{[1
,3
,4
]}

机构：

[1] Univ Poitiers, CNRS UMR CNRS 7285, 6 Rue Michel Brunet TSA 51106, F-86073 Poitiers 9, France

[2] Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, 73 D Mangeron Bvd, Iasi 700050, Romania

[3] Laval Univ, Dept Min Met & Mat Engn, Quebec City, PQ G1V 0A6, Canada

[4] Univ Lille, CNRS, Cent Lille, ENSCL,Univ Artois,UMR 8181,UCCS, F-59000 Lille, France

来源：

CHEMNANOMAT | 2017年 / 3卷 / 04期

关键词：

heterogeneous catalysis; intra-wall pore encapsulation; mesoporous materials; nanoparticles; transition metals; SBA-15; SILICA; COBALT OXIDE; SPACE; DISPERSION; OXIDATION; EFFICIENT; CHANNELS; FUNCTIONALIZATION; FABRICATION; EPOXIDATION;

D O I：

10.1002/cnma.201700014

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A melt infiltration strategy allows the encapsulation of transition metal (oxide) nanoparticles in the intra-wall pores of SBA-15 supports, providing ultrafine particles that are stable at high temperatures (up to 900 degrees C, oxidizing-reducing atmospheres). Selective localization of transition metal (oxide) precursor in the secondary pores is achieved in the presence of organic structure-directing agent occluded in the intra-wall pores, and by applying an intermediate diffusion step during preparation.

引用

页码：233 / 237

页数：5

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