News Column

Data on Nanorods Reported by Researchers at Spanish National Research Council (CSIC)

May 16, 2014

By a News Reporter-Staff News Editor at Science Letter -- A new study on Nanorods is now available. According to news originating from Madrid, Spain, by NewsRx correspondents, research stated, "A series of one dimensional (1D) alumina nanocomposites were prepared by a soft template sol-gel synthesis. The materials were calcined at 773 K and an extensive characterization was carried out."

Our news journalists obtained a quote from the research from Spanish National Research Council (CSIC), "Several arrays and individual 1D nanorods forming a linked network were observed by HRTEM. The presence of alumina nanorods induced novel electronic properties for alumina carrier. A decrease on the band gap energy detected by DRS UV-vis, and a shift on the binding energy of Al 2p core-level was observed by XPS revealing an increase on the conduction character. This unusual behavior for alumina materials is probably related with an oxygen deficiency over the nanorod surface confirmed by TEM-EDX analysis. Also, it was possible to correlate some surface morphological changes with the average molecular weight (AMW) of the 'Pluronics'. The results show that a decrease for the nanorod average length is observed with an increase on the pluronic AMW. Besides, a proportional increase for the nanorods average diameter with the pluronic AMW is also observed. These results imply that it is possible to control de morphological characteristics of the nanostructures. The formation of the nanorods linked network give a rise to materials with high specific surface area and a very narrow pore size distribution in the mesoporous range. Some materials were used as a support to prepare NiWS catalysts and were tested in the HDS of dibenzothiophene with promising results."

According to the news editors, the research concluded: "Finally a possible mechanism for the formation of the alumina nanorods is proposed in this work."

For more information on this research see: One dimensional (1D) gamma-alumina nanorod linked networks: Synthesis, characterization and application. Applied Catalysis A-General, 2014;472():1-10. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Nanorods).

The news correspondents report that additional information may be obtained from J.N.D. de Leon, CSIC, Inst Catalisis & Petroleoquim, Madrid, Spain. Additional authors for this research include V. Petranovskii, J.A. de los Reyes, G. Alonso-Nunez, T.A. Zepeda, S. Fuentes and J.L. Garcia-Fierro.

Keywords for this news article include: Spain, Madrid, Europe, Nanotechnology, Emerging Technologies

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Source: Science Letter

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