Synthesis, Characterization, and Application in the CO Oxidation over a Copper Nanocatalyst Confined in SBA-15

被引：15

作者：

Garcia-Cuello, Vanessa S. ^{[2
]}

Giraldo, Liliana ^{[2
]}

Carlos Moreno-Pirajan, Juan ^{[1
]}

机构：

[1] Univ Los Andes, Fac Ciencias, Dept Quim, Grp Invest Solidos Porosos & Calorimetria, Bogota, Colombia

[2] Univ Nacl Colombia, Fac Ciencias, Dept Quim, Bogota, Colombia

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 04期

关键词：

MESOPOROUS MOLECULAR-SIEVES; SITU REDUCTION ROUTE; GOLD NANOPARTICLES; FUNCTIONALIZED SBA-15; SILVER NANOPARTICLES; CATALYTIC-ACTIVITY; SILICA; CHANNELS; ADSORPTION; STABILITY;

D O I：

10.1021/je101084w

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Copper nanoparticles within the pore channels of selectively grafted mesoporous silica SBA-15 were synthesized. Silanols on the external surface of as-SBA-15 were first capped by -Si(CH3)(3) groups. After the removal of the template of capped SBA-15 by calcination, silanols on the internal surface of SBA-15 were modified by 3-aminopropyltrimethoxysilane (APTMS), and then formaldehyde was grafted to the amino groups of APTMS and with Cu(NH3)(4)(NO3). The support and catalyst were characterized by X-ray diffraction (XRD), Barett-Joyner-Halenda (BJH) pore-size distribution, Brunauer-Emmett-Teller (BET) surface area, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and adsorption calorimetry. The initial conversion follows the trend in size: 52% at pore size 6.0 for this catalyst at 343 K.

引用

页码：1167 / 1173

页数：7

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