Catalytic combustion of volatile organic compounds on gold/iron oxide catalysts

Gold supported on iron oxy-hydroxides: a versatile tool for the synthesis of fine chemicals

“…A similar effect of gold on the reducibility of Fe 2 O 3 have been also reported by others [30][31][32][33].…”

“…Moreover, the higher the gold loading the lower is the reduction temperature [28,33]. Several hypotheses have been formulated to explain the increase of the reducibility of Fe 2 O 3 in the presence of gold.…”

“…Ilieva et al have suggested that gold is able to dissociate water forming activated hydroxyl groups which promote the low temperature reduction of Fe 2 O 3 support [31]. Minico' et al concluded that the lower reduction temperature on Au/Fe 2 O 3 catalysts is due to the ability of highly dispersed gold to activate the oxygen of the iron oxide weakening the Fe-O bonds located nearby the gold atoms [33]. Boccuzzi et al, instead, have reported that small gold particles dissociate H 2 already at room temperature, giving rise to hydrogen atoms which can react with adsorbed oxygen atoms or spillover on the support where they can facilitate the reduction of the oxide [34].…”

Impact of silica structure of copper and iron-containing SBA-15 and SBA-16 materials on toluene oxidation

“…Until now cubic mesoporous SBA-16 system has not been studied so extensively as a support for catalytically active metal-oxide phase, like the hexagonal SBA-15. The catalytic total oxidation is considered as the most appropriate method for the removal of volatile organic compounds (VOCs) [3,17,14,[22][23][24][25][26][27]. This process is of great importance because of the strict regulations on the environmental standards which require reduction of their emission.…”

“…Supported metal oxides (Cu, Co, Fe, Ni, Mo, V, etc.) are an alternative to the noble metals as catalysts for complete oxidation [22,[24][25][26]. Among them, copper supported catalysts are one of the most promising ones for VOC oxidation processes [24,25].…”