Iron-oxide-modified nanosized diamond: Preparation, characterization, and catalytic properties in methanol decomposition

Phase reduction of coated maghemite (γ-Fe2O3) nanoparticles under microwave-induced plasma heating for rapid heat treatment

“…30 A sharp peak at $1628 cm À1 could be assigned to O-H vibrations, probably due to the presence of adsorbed water. [30][31][32] In comparison to the bare particle sample, silane coated maghemite nanoparticles (Fig. 3b) showed a pair of weak bands at 3413 and 3300 cm À1 representing free amino asymmetric and symmetric stretching vibrations.…”

Diamond Nanoparticles in Heterogeneous Catalysis

“…Thus, in a series of studies, MNPs supported on diamond-based materials have been employed as catalysts to promote hydrogen generation from methane (eq ), methanol (eq ), ,, or ammonia borane decomposition (eq ). Nickel (5 wt %) loaded on oxidized-D (12.6 m 2 /g) has found superior activity for selective methane decomposition at 600 °C to molecular H 2 and carbon nanomaterials (eq ), with respect to the use of analogous Ni catalysts based on metal oxide supports.…”

“…Hydrogen generation by methanol decomposition has been reported using nickel , or iron metals supported on diamond-based materials (eq ). Frequently, the H 2 to CO molar ratio is lower than 2 due to the occurrence in some extent of side reactions such as methanation (eq ) and the water-shift reaction (eq ).…”

“…Frequently, the H 2 to CO molar ratio is lower than 2 due to the occurrence in some extent of side reactions such as methanation (eq ) and the water-shift reaction (eq ). ,, …”

“…Thus, in a series of studies, MNPs supported on diamondbased materials have been employed as catalysts to promote hydrogen generation from methane (eq 7), 62 methanol (eq 8), 60,116,117 or ammonia borane decomposition (eq 9). 118…”