Structure, photochemistry and applications of metal-doped polyoxotitanium alkoxide cages

Metal-doped polyoxotitanium cages (M-POTs) of the type [Ti x O y (OR) z M n X m ] (M = a main group, transition metal or lanthanide; X = an anion such as a halide) can be regarded as molecular fragments of metal-doped TiO 2 . As such M-POTs can be used as structural models for the inclusion of metal...

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Published inChemical communications (Cambridge, England) Vol. 5; no. 85; pp. 12815 - 12823
Main Authors Matthews, Peter D, King, Timothy C, Wright, Dominic S
Format Journal Article
LanguageEnglish
Published England 04.11.2014
Subjects
Cages
Devices
Electronics
Fragments
Pollution control
Precursors
Titanium dioxide
Trends
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Summary:Metal-doped polyoxotitanium cages (M-POTs) of the type [Ti x O y (OR) z M n X m ] (M = a main group, transition metal or lanthanide; X = an anion such as a halide) can be regarded as molecular fragments of metal-doped TiO 2 . As such M-POTs can be used as structural models for the inclusion of metal ions into the TiO 2 lattice and the ways in which well-defined microstructural changes affect photo-induced hole-electron separation. They are also potential organically-soluble redox-catalysts for a range of organic transformations and have been shown to be useful single-source precursors for the deposition of metal-doped TiO 2 . The applications of M-POTs as molecular precursors to metal-doped TiO 2 offers a high degree of atomic control in the low temperature fabrication of photocatalytic thin films, which have applications in pollution control and water splitting. This perspective highlights the structural trends in M-POTs, their electronic behaviour and their applications as single-source precursors, looking at current and future trends in the development of inorganic precursors for device applications. Metal-doped polyoxotitanium cages can be regarded as molecular fragments of metal-doped TiO 2 and can be used as structural models for the inclusion of metal ions into the TiO 2 lattice. They are potential organically-soluble redox-catalysts for a range of organic transformations and have been shown to be useful single-source precursors for the deposition of metal-doped TiO 2 .
Bibliography:Dominic S. Wright obtained his first degree at Strathclyde University (1982-1986) before moving to Cambridge University where he did his PhD under the late Dr Ron Snaith (1986-1989). After a research fellowship at Gonville and Caius College Cambridge (1989-1991), he was appointed to a lectureship at Cambridge and promoted to Reader in 2002 and promoted to a personal chair in Inorganic Chemistry in 2010. He is the author of around 290 academic papers. He was awarded the RSC Main Group Chemistry Award in 2012.
2
cages, doped zinc oxide cages and heteroatom doped graphites.
Timothy C. King was born in Kingston-upon-Thames in 1989. He studied for his MSc degree at the University of Bristol (2007-2011) before starting a PhD at the University of Cambridge, as a student in the Wright group with a focus on heteroatom doped graphites and discrete TiO
cage structures.
Peter D. Matthews was born in Manchester in 1990. He studied for his MSc degree at the University of Cambridge (2008-2012) and is currently a PhD student in the Wright group working on TiO
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ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc04421e