Solar simulated hydrogen evolution using cobalt oxide nanoclusters deposited on titanium dioxide mesoporous materials prepared by evaporation induced self-assembly process

Photocatalytic production of hydrogen from biomass-derived feedstocks

“…counterparts, yet their study is worth being considered. Recently, a method based on the hydrolysis of titanium alkoxides in the presence of cobalt salts and subsequent calcination led to segregation of Co in the form of highly dispersed nanoclusters on the external surface of the nascent anatase phases; activity of the resulting material for methanol photoreforming was proven [282]. Deposition of isolated tin species has also proved beneficial to enhance the performance of Pt/TiO2…”

Illuminating the nature and behavior of the active center: the key for photocatalytic H2production in Co@NH2-MIL-125(Ti)

“…Outside the field of MOFs, the few examples of photocatalysts for hydrogen evolution reaction (HER) based on TiO2 materials doped with Co species assign to Co the role of co-catalyst that receives electrons from the photoexcited TiO2 thus slowing down charge recombination. 7,8 However, it is still challenging to experimentally probe the molecular and valence electronic structures of these complex systems due to the low loadings and heterogeneity of the sites. Understanding the interaction between the two metallic components in Co@MOF(Ti) materials (the Ti-octamer cluster and the Co-based site) during the catalytic cycle is thus of major importance to unravel the mechanism of photoninduced hydrogen production and, ultimately, to optimize the photocatalytic performance.…”