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Porosity through reduction in metal oxides

  • Daniel P Shoemaker (a1), Serena Ann Corr (a2) and Ram Seshadri (a3)
Abstract

Routes to porous materials with nanoscale dimensions have been investigated. In the first example presented, porous manganese oxide has been prepared by leaching Ni metal from a nickel-manganese oxide precursor via reduction. Electron microscopy studies have revealed the presence of Ni nanoparticles on the surface, and also embedded within the porous MnO matrix. Magnetic measurements have shown exchange bias between the ferromagnetic Ni nanoparticles and the antiferromagnetic MnO phase. In the second system studied, porous nanostructures of rutile VO2 and corundum V2O3 have been prepared by reduction of amine-templated V2O5−δ nanoscrolls. The porosity of these materials has been probed by electron microscopy, N2 sorption measurements and thermogravimetric analysis.

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1. Shchukin, D G, Schattka, J H, Antonietti, M, Caruso, R A, Photocatalytic properties ofporous metal oxide networks by nanoparticle infiltration in a polymer gel template, J. Phys. Chem. B 107 952957 (2003)
2. Tiemann, M, Porous metal oxides as gas sensors, Chem. Eur. J. 13 83768388 (2007)
3. Owens, B B, Passerini, S, Smyrl, W H, Lithium ion insertion in porous metal oxides, Electrochimica Acta 45 215224 (1999)
4. Toberer, E S, Seshadri, R, Spontaneous formation of macroporous monoliths of mesoporous manganese oxide crystals, Adv. Mater. 17 22442246 (2005)
5. Toberer, E S, Löfvander, J P, Seshadri, R, Topochemical formation of mesoporous MnO crystals, Chem. Mater. 18 10471052 (2006)
6. Toberer, E S, Epping, J D, Chmelka, B F, Seshadri, R, Hierarchically porous rutile titania: harnessing spontaneous compositional change in mixed-metal oxides, Chem. Mater. 18 63456351 (2006)
7. Toberer, E S, Schladt, T D, Seshadri, R, Macroporous manganese oxides with regenerative mesopores, J. Am. Chem. Soc. 128 14621463 (2006)
8. Nogués, J, Sort, J, Langlais, V, Skumryev, V, Suriñach, S, Muñoz, J S and Baró, M D, Exchange bias in nanostructures, Phys. Rep. 422 65117 (2005)
9. Wickham, D G, Solid-phase equilibria in the system NiO–Mn2O3–O, J. Inorg. Nucl. Chem. 26 1369–77 (1964)
10. Corr, S A, Grossman, M, Furman, J D, Melot, B C, Cheetham, A K, Keier, K R, Seshadri, R, Controlled reduction of vanadium oxide nanoscrolls: crystal structure, morphology and electrical properties, Chem. Mater. 20 63966404 (2008)
11. Shoemaker, D P, Grossman, M and Seshadri, R, Exchange biasing of single-domain Ni nanoparticles spontaneously grown in an antiferromagnetic MnO matrix, J. Phys. Cond. Mat. 20 195219 (2008)
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