Synthesis of Mesoporous Silica with Embedded Nickel Nanoparticles for Catalyst Applications

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Here we describe a new route for the synthesis of nanometric Ni particles embedded in a mesoporous silica material with excellent potential for catalytic applications. Mesoporous silica with a surface area in the range of 202-280 m2/g, with narrow pore size distribution and Ni nanoparticles (particles in the range of 3-41 nm) were obtained in a direct process. A different approach was adopted to process such a nanocomposite. This new approach is based on the formation of a polymer with the silicon oxianion and nickel cation chelated to the macromolecule structure and on the control of the pyrolysis step. The CO/CO2 atmosphere resulting from the pyrolysis of the organic material promotes the reduction of the Ni citrate.


Document Type: Research Article


Affiliations: 1: CMDMC-LIEC, Department of Chemistry, UFSCar, Via Washington Luiz, Km 235, C.P. 676-CEP 13565-905, São Carlos, SP 2: LABOCATH, Department of Chemistry, UFSC, CP-476-CEP 88040-900, Florianópolis, SC, Brazil

Publication date: February 1, 2002

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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