1982
DOI: 10.1016/0025-5408(82)90051-4
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Chemical vapour transport of transition-metal oxides (II) epitaxial growth of RuO2, IrO2 and (Ru1−x, Irx)O2 on TiO2

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Cited by 7 publications
(4 citation statements)
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“…Interestingly, the H 2 -TPR profiles of virtually all the calcined samples displayed a hydrogen consumption peak at comparable temperatures (approximately 373–448 K) with the only exception of the system supported on TiO 2 -r, the reduction of which was shifted to a higher temperature of approximately 478 K (Figure S2). The distinct IrO 2 -TiO 2 -r interaction likely originates from the lattice matching between the two rutile phases. Reduction of the oxide-based materials into the metal-based catalysts is preferably performed at their maximum H 2 consumption temperature, as determined by H 2 -TPR (Figure S2). For all systems, except IrO 2 /TiO 2 -r, such a protocol would imply reducing the catalyst at a temperature below that applied during hydrodechlorination (473 K).…”
Section: Resultsmentioning
confidence: 99%
“…Interestingly, the H 2 -TPR profiles of virtually all the calcined samples displayed a hydrogen consumption peak at comparable temperatures (approximately 373–448 K) with the only exception of the system supported on TiO 2 -r, the reduction of which was shifted to a higher temperature of approximately 478 K (Figure S2). The distinct IrO 2 -TiO 2 -r interaction likely originates from the lattice matching between the two rutile phases. Reduction of the oxide-based materials into the metal-based catalysts is preferably performed at their maximum H 2 consumption temperature, as determined by H 2 -TPR (Figure S2). For all systems, except IrO 2 /TiO 2 -r, such a protocol would imply reducing the catalyst at a temperature below that applied during hydrodechlorination (473 K).…”
Section: Resultsmentioning
confidence: 99%
“…Beyond purely IrO 2 single crystals, mixed/doped single crystals have also been realized through CVT [96,103]. Using (Sn,Ir)O 2 as an example [96], SnO 2 and IrO 2 are crystallographically similar as they possess rutile structures with similar lattice parameters but vary in their electrical and optical properties.…”
Section: Bulk Crystal Growth By Cvtmentioning
confidence: 99%
“…The following are examples: "chemical vapor transport" and "vapor phase transport" [133 , 134] . In these methods, IrO 3 is generally generated from the reaction of a source material (e.g., metallic iridium [133] and iridium dioxide [134] ) with O 2 at elevated temperatures. The IrO 3 species in the flow reaches the substrate lying downstream and begins nucleation to form IrO 2 with the liberation of O 2 gas [133 , 134] .…”
Section: Vapor Transportmentioning
confidence: 99%
“…The resulting IrO 2 particles are known to exhibit various shapes, including pyramidal growth and nanowires [133 , 134] . In this method, the substrate should be positioned at a suitable distance from the source material so that the temperature would be sufficiently low to facilitate epitaxial growth [133] .…”
Section: Vapor Transportmentioning
confidence: 99%