Tuesday, January 12, 2010

Nanotech and Desulf

"Nanotechnology is the base technology of an industrial revolution in the 21st century. Those who control nanotechnology will lead the industry." -- Michiharu Nakamura, Executive VP at Hitachi

Nakamura’s quote says it all. Nanotech will have an enormous impact on all aspects of technology, including desulfurization. One way to stay on top of nanotech developments affecting your area of research is to bookmark the Nano Archive (http://www.nanoarchive.org/). According to the Nano Archive Web …

The Nano Archive is part of the ICPCNanoNet project, funded by the EU under FP7 for four years from 1st June 2008 (contract number 218282). It brings together partners from the EU, China, India and Russia and aims to provide wider access to published nanoscience research and opportunities for collaboration between scientists in the EU and International Cooperation Partner Countries.

This electronic archive of nanoscience publications has a simple interface for the deposit of full-text papers and incorporates facilities for retrieval by browsing or searching. It is freely accessible to researchers around the globe, making research papers and other scholarly publications widely available.

A number of the articles indexed in the Nano Archive are available in full text at no charge. When not available, a link to the source where the full text may be purchased is displayed.

Here are the results of a couple of simple searches on the Nano Archive site, using two search strings: “sulfur” and “hydrocarbon”

Search string: sulfur
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Liquefied petroleum gas containing sulfur as the carbon source for carbon nanotube forests
Jiaqi Huanga, Qiang Zhanga, Fei Wei, a, , Weizhong Qiana, Dezheng Wanga and Ling Hua
weifei@flotu.org
aBeijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

Abstract
Carbon nanotube (CNT) forests were obtained from liquefied petroleum gas (LPG) as the carbon source in the floating catalyst process. The CNTs obtained in the forest had a thinner diameter and lower growth rate than those obtained with other carbon sources, which was attributed to the existence of sulfur in the LPG. The use of unpurified LPG provides a controllable way to synthesize a CNT forest at low cost.

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Effect of microwaves on the formation of nanosized iron/carbon catalysts for oxidation of H2S to sulfur
Journal Nanotechnologies in Russia
Publisher MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
ISSN 1995-0780 (Print) 1995-0799 (Online)
Issue Volume 3, Numbers 1-2 / February, 2008
Tsodikov, M. V. and Nekhaev, A. I. and Bukhtenko, O. V. and Maksimov, Yu. V. and Suzdalev, I. P. and Karaseva, M. S.

Abstract
Immobilized nanosized metal (oxides) on carbonaceous carriers were prepared by hydrolysis under mild conditions by using the carrier pores as a kind of nanoreactor. Metal alkoxide vapor was adsorbed on the carrier and then formed the product upon exposure to water vapor. With this facile method, Titania, Vanadia, Rhodium (oxide), and Platinum (oxide) nanostructures were prepared at high yields, high loadings, and good dispersion in the carrier material. High number concentrations of spheroidal nanoparticles of uniform size (diameter ca. 5 nm) were obtained from less reactive precursors, whereas with highly reactive precursors, such nanoparticles occurred only after subsequent calcination. Nanoparticles appeared to be the thermodynamically stable form of the metal (oxide) produced in the pores. Highly reactive precursors formed metastable seeds, which nucleated and restructured into nanoparticles upon subsequent exposure to heat. The presented method allows for preparation of metal (oxide) nanostructures and effective control of their size and shape.
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Search string: hydrocarbon

Mesoporous Silica: A Suitable Adsorbent for Amines
Zamani, Cyrus and Illa, Xavi and Abdollahzadeh-Ghom, Sara and Morante, J. R. and Romano Rodríguez, Albert (2009) Mesoporous Silica: A Suitable Adsorbent for Amines. Nanoscale Research Letters, 4 (11). pp. 1303-1308.

Abstract
Mesoporous silica with KIT-6 structure was investigated as a preconcentrating material in chromatographic systems for ammonia and trimethylamine. Its adsorption capacity was compared to that of existing commercial materials, showing its increased adsorption power. In addition, KIT-6 mesoporous silica efficiently adsorbs both gases, while none of the employed commercial adsorbents did. This means that KIT-6 Mesoporous silica may be a good choice for integrated chromatography/gas sensing micro-devices.

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Do you have a “How Do I” question on how to find information on a topic of interest? Send me an email (research@JeanSteinhardtConsulting.com) and I will return a confidential reply with a search strategy that can help you find what you need.

1 comment:

  1. It is interested but the best de-sulfur catalysts are still Mo-Ru-S

    Alex
    www.fuelcellsinfo.com

    ReplyDelete