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Your search keyword '"King, Nicola C."' showing total 3 results
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3 results on '"King, Nicola C."'

1. The preparation by true liquid crystal templating of mesoporous silicates containing nanoparticulate metals.

Author

King NC, Blackley RA, Zhou W, and Bruce DW

Subjects
Particle Size, Porosity, Sensitivity and Specificity, Silicates chemistry, Spectrophotometry, X-Rays, Liquid Crystals chemistry, Metals, Heavy chemistry, Nanoparticles chemistry, Silicates chemical synthesis
Abstract

Mesostructured silicates containing metal nanoparticles have been synthesised via templating around a pre-formed, metal-containing mesophase using a non-ionic surfactant.

Published
2006
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2. The synthesis of mesoporous silicates containing bimetallic nanoparticles and magnetic properties of PtCo nanoparticles in silica.

Author

King NC, Blackley RA, Wears ML, Newman DM, Zhou W, and Bruce DW

Subjects
Cobalt chemistry, Particle Size, Platinum chemistry, Porosity, Silicates chemistry, Magnetics, Metals, Heavy chemistry, Nanoparticles chemistry, Silicates chemical synthesis, Silicon Dioxide chemistry
Abstract

Using a one-pot approach employing true liquid crystal templating on neutral surfactants and simple metal salt precursors, mesostructured, mesoporous silicates have been prepared in which bimetallic nanoparticles are deposited; magnetic properties of PtCo systems so prepared are evaluated.

Published
2006
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3. The oxidation of water by cerium(IV) catalysed by nanoparticulate RuO2 on mesoporous silica.

Author

King NC, Dickinson C, Zhou W, and Bruce DW

Subjects
2,2'-Dipyridyl analogs & derivatives, 2,2'-Dipyridyl chemistry, Catalysis, Molecular Conformation, Oxidation-Reduction, Particle Size, Porosity, Surface Properties, Surface-Active Agents chemistry, Time Factors, Cerium chemistry, Nanoparticles chemistry, Ruthenium Compounds chemistry, Silicon Dioxide chemistry, Water chemistry
Abstract

Mesoporous silicates are prepared by templating on the hexagonal (H1) mesophase of surfactant bipyridine complexes of ruthenium(II) using a true liquid-crystal templating approach. On calcination, the surfactant template is removed except for the central metal ion that is oxidised, forming nanoparticles of RuO2 that deposit within the pores. RuO2 is a known oxidation catalyst and, despite its anhydrous nature in these silicates, is found to be very active in catalyzing the oxidation of water by acidic CeIV.

Published
2005
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