Novel PtCuO/CeO2/α-Al2O3 sponge catalysts for the preferential oxidation of CO (PROX) prepared by means of supercritical fluid reactive deposition (SFRD)

Preparation of supported Pt nanoparticles by supercritical fluid reactive deposition: Influence of precursor, substrate and pressure on product properties

“…Complementary experiments show that the catalysts prepared by SFRD possess a superior activity toward oxidation of CO. These promising results have been confirmed in a further investigation confirmed by Lang et al [14]. These experiments showed that PtCuO/CeO 2 catalysts prepared by SFRD exhibit high activity and selectivity in the preferential oxidation of CO.…”

“…rapid decompression, anti-solvent effect) or a chemical reaction. Previous experimental investigations show that metallic nanoparticles can directly be deposited on various solid substrates by SFRD [2,3,[9][10][11][12][13][14][15]. Both highly dispersed and uniformly distributed metal crystallites and agglomerated metal clusters with a wide size distribution supported on different inorganic and organic substrates for a multitude of applications can be produced.…”

CuO/CeO 2 based monoliths for CO preferential oxidation in H 2 -rich streams

“…Lang et al [26] dispersed Pt/CuO on ceria deposited on ceramic sponges used as catalyst carriers because they combine low pressure drop with good heat and mass transfer characteristics.…”

Electrochemical performance of fuel cell catalysts prepared by supercritical deposition: Effect of different precursor conversion routes

“…An alternative method that has been under development for the preparation of supported nanoparticles is supercritical deposition (SCD) [14][15][16][17][18][19][20]. SCD consists of dissolution of a metal precursor in a supercritical solvent, the adsorption of the precursor from the supercritical fluid phase onto the surface of the substrate, and the conversion of the precursor to its metal form on the surface of the substrate using various routes [21,22].…”

“…This approach leads to welldispersed nanoparticles with controllable particle sizes [21,[23][24][25][26]. SCD has been shown to be a very powerful technique for the preparation of supported nanoparticles with excellent control of loading, particle size and distribution [18,21]. In SCD, the metal loading on the substrate can be controlled thermodynamically by using the adsorption isotherm of the metal precursor-substrate system [24,[27][28][29][30][31][32].…”