Activation of tungsten oxide catalyst on SiO2 surface by low-temperature plasma

Nonequilibrium Plasma Activation of Supported Cr(III) Phillips Catalyst Precursors

“…For instance, the problems related to high-temperature segregation within zeolitic Fischer−Tropsch catalysts can be overcome by the use of oxygen or argon plasma treatments, which leads to enhanced catalytic activities compared to their thermally activated counterparts . Similar improvements have also been found for hydrogenation catalysts , and alkene disproportionation catalysts …”

“…4 Similar improvements have also been found for hydrogenation catalysts 5,6 and alkene disproportionation catalysts. 7 It has previously been reported that air plasma activation of silica-alumina-supported chromium(VI) oxide precursors can yield a high-activity ethylene polymerization catalyst. 8 However, current safety legislation prohibits any human contact with carcinogenic chromium(VI) species during the production of polyethylene using the Phillips catalyst.…”

Synthesis and characterization of Pt/Al2O3–CeO2 nanocatalyst used for toluene abatement from waste gas streams at low temperature: Conventional vs. plasma–ultrasound hybrid synthesis methods

“…Recently, the glow discharge plasma which consists of highly excited atoms and molecules, ions, electrons, radicals, neutral particles and so on, is widely used to treat the catalyst to modify its properties [27,55,56]. Vissokov et al published distinct papers about plasma synthesis and regeneration of nanocatalysts for various reactions [57][58][59][60][61].…”

“…A variety of metal oxide catalyst formulations have been evaluated for the deep oxidation of VOCs, including CuO x [12,15,16], MnO x [12,[16][17][18][19], CeO x [15,16,20,21], NiO x [12,16,22], CoO x [22][23][24][25], MoO x [12,16,22,23,26], ZrO x [16,20,[26][27][28], CrO x [12,26], VO x [10,22], FeO x [12,22,23], and their binary mixtures [12,15,17,20,21,26,[28][29][30][31][32][33]. Indeed, among these non-noble metal oxide catalysts investigated for the complete oxidation of toluene, copper was found to be the most promising catalyst.…”