NDLI: A General Approach to Fabricate Diverse Noble-Metal (Au, Pt, Ag, $Pt/Au)/Fe_{2}O_{3}$ Hybrid Nanomaterials

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A General Approach to Fabricate Diverse Noble-Metal (Au, Pt, Ag, $Pt/Au)/Fe_{2}O_{3}$ Hybrid Nanomaterials

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Shurong Zhang, Jun Wu, Shihua Liu, Xianghong Guo, Xianzhi
Description	Author Affiliation: Zhang J ( Department of Chemistry, Nankai University, Tianjin, 300071 China.)
Abstract	A novel, facile, and general one-pot strategy is explored for the synthesis of diverse noble-metal (Au, Pt, Ag, or $Pt/Au)/Fe_{2}O_{3}$ hybrid nanoparticles with the assistance of lysine (which is a nontoxic, user friendly amino acid that is compatible with organisms) and without using any other functionalization reagents. Control experiments show that lysine, which contains both amino and carboxylic groups, plays dual and crucial roles as both linker and capping agents in attaching noble metals with a small size and uniform distribution onto an $Fe_{2}O_{3}$ support. Considering the perfect compatibility of lysine with organism, this approach may find potentials in biochemistry and biological applications. Furthermore, this novel route is also an attractive alternative and supplement to the current methods using a silane coupling agent or polyelectrolyte for preparing hybrid nanomaterials. To demonstrate the usage of such hybrid nanomaterials, a chemical gas sensor has been fabricated from the as-synthesized $Au/Fe_{2}O_{3}$ nanoparticles and investigated for ethanol detection. Results show that the hybrid sensor exhibits significantly improved sensor performances in terms of high sensitivity, low detection limit, better selectivity, and good reproducibility in comparison with pristine $Fe_{2}O_{3}.$ Most importantly, this general approach can be further employed to fabricate other hybrid nanomaterials based on different support materials.
ISSN	09476539
e-ISSN	15213765
Journal	Chemistry - A European Journal
Issue Number	27
Volume Number	16
Language	English
Publisher	Wiley-VCH;ChemPubSoc Europe
Publisher Date	2010-07-19
Publisher Place	Germany
Access Restriction	Open
Subject Keyword	Ferric Compounds Chemistry Metal Nanoparticles Nanostructures Platinum Chimera Molecular Structure Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Catalysis

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