Catalytic activity of Pt/SiO2 nanocatalysts synthesized via ultrasonic spray pyrolysis process under CO oxidation

Ni/SiO2 catalyst prepared via Ni-aliphatic amine complexation for dry reforming of methane: Effect of carbon chain number and amine concentration

“…This increase of the initial reactivity corresponded with the decrease of the nickel particle size, increase of the Ni dispersion and the specific surface area shown by XRD, TEM, and N 2 O-chemisorption. As a smaller metal particle size has a higher surface to volume ratio, the catalytic activity will be higher [42]. The increasing stability matched the increase of MSI in TPR results; i.e., a stronger MSI generates a better stability.…”

“…Numerous methods have been used to prepare metal nano-catalysts, such as chemical reduction [41], ultrasonic spray pyrolysis [42], sol-gel [43] and precipitation method [44]. However, limitation of being scaled up impedes their application in industrial dimensions.…”

Ultrasonic spray deposition of SiC nanoparticles for laminate metal composite fabrication

“…In a recent study, the deposition structures of ultrasonic and handheld spraying techniques were compared, and the ultrasonic spraying technique resulted in a smoother and more uniform deposition structure [13]. It has been used to fabricate fuel cell electrodes [14], thin films [15, 16 16], nanocatalysts [17], high temperature oxidation resistant coatings [16], and electrochromic 17…”

Tin oxide based dye sensitized solar cells

“…A thin layer of catalytic platinum on TCO can be prepared through various methods such as electrodeposition, spray pyrolysis, sputtering, thermal-deposition and physical vapor deposition. [147][148][149][150] However, Pt film prepared through electro deposition and vapor deposition tends to dissolve in I -/I3electrolytes, therefore not suitable for commercial use where long term stability is needed. Best performance and long-term stability has been achieved with nanoscale Pt clusters prepared by thermal decomposition of platinum chloride compounds where charge transfer resistances of less than 1 Ω cm 2 is achieved and very low Pt-loadings (5 μg cm -2 ) are needed, as a result counter electrode remains transparent.…”