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Int. J. Mol. Sci. 2012, 13(6), 7393-7423; doi:10.3390/ijms13067393

Hierarchical Assembly of Multifunctional Oxide-based Composite Nanostructures for Energy and Environmental Applications

Nanomaterials Science Laboratory, Department of Chemical, Materials and Biomolecular Engineering & Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
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Received: 23 March 2012 / Revised: 31 May 2012 / Accepted: 1 June 2012 / Published: 15 June 2012
(This article belongs to the Section Material Sciences and Nanotechnology)

Abstract

Composite nanoarchitectures represent a class of nanostructured entities that integrates various dissimilar nanoscale building blocks including nanoparticles, nanowires, and nanofilms toward realizing multifunctional characteristics. A broad array of composite nanoarchitectures can be designed and fabricated, involving generic materials such as metal, ceramics, and polymers in nanoscale form. In this review, we will highlight the latest progress on composite nanostructures in our research group, particularly on various metal oxides including binary semiconductors, ABO3-type perovskites, A2BO4 spinels and quaternary dielectric hydroxyl metal oxides (AB(OH)6) with diverse application potential. Through a generic template strategy in conjunction with various synthetic approaches—such as hydrothermal decomposition, colloidal deposition, physical sputtering, thermal decomposition and thermal oxidation, semiconductor oxide alloy nanowires, metal oxide/perovskite (spinel) composite nanowires, stannate based nanocompostes, as well as semiconductor heterojunction—arrays and networks have been self-assembled in large scale and are being developed as promising classes of composite nanoarchitectures, which may open a new array of advanced nanotechnologies in solid state lighting, solar absorption, photocatalysis and battery, auto-emission control, and chemical sensing. View Full-Text
Keywords: nanocomposite; nanowire/particle/film; self-assembly; metal oxide; band-gap engineering; catalysis; chemical sensors; thermal engineering nanocomposite; nanowire/particle/film; self-assembly; metal oxide; band-gap engineering; catalysis; chemical sensors; thermal engineering
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Gao, P.-X.; Shimpi, P.; Gao, H.; Liu, C.; Guo, Y.; Cai, W.; Liao, K.-T.; Wrobel, G.; Zhang, Z.; Ren, Z.; Lin, H.-J. Hierarchical Assembly of Multifunctional Oxide-based Composite Nanostructures for Energy and Environmental Applications. Int. J. Mol. Sci. 2012, 13, 7393-7423.

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