Macroporous materials from crystalline single-source precursors through decomposition followed by selective leaching

Rajamath, Michael and Thimmaiah, Srinivasa and Morgan, Peter ED and Seshadri, Ram (2001) Macroporous materials from crystalline single-source precursors through decomposition followed by selective leaching. In: Journal of Materials Chemistry, 11 (10). pp. 2489-2492.

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Abstract

There are a number of pairs of elements A and B in the periodic table that do not form binary oxides $(A_xB_yO)$. We have used this fact to seek out crystalline precursors containing such metals that can be decomposed at elevated temperatures to form intimate mixtures of the individual oxides, $(A_xO)$ and $(B_yO)$. Selective leaching of one of these oxide components from the monolithic mixture results in a macroporous material. We demonstrate this scheme by decomposing a hydroxy double salt containing Ni and Zn. The ZnO from the decomposition product can be leached out, leaving behind a macroporous NiO monolith that can be further reduced to yield porous metallic Ni.

Item Type:	Journal Article
Publication:	Journal of Materials Chemistry
Publisher:	Royal Society of Chemistry
Additional Information:	Copyright belongs to The Royal Society of Chemistry
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	18 Sep 2008 11:35
Last Modified:	19 Sep 2010 04:49
URI:	http://eprints.iisc.ac.in/id/eprint/15896

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