Great activity enhancement of Co3O4/γ-Al2O3 catalyst for propane combustion by structural modulation

Support-Dependent Activity and Thermal Stability of Ru-Based Catalysts for Catalytic Combustion of Light Hydrocarbons

“…Therefore, 3.75% Ru was focused on in the following investigation, unless otherwise specified. It should be pointed out that the contents of Ru loading were insensitive for the Ru/Co 3 O 4 catalyst; after increasing Ru loading, the activity increased slightly, which was probably associated with the fact that the pristine Co 3 O 4 was intrinsically highly active for propane catalytic combustion …”

“…Actually, Ru/CeO 2 showed high activity for catalytic combustion of propane, 15 while Co 3 O 4 itself was highly active. 16 For comparison, the irreducible/amphoteric Al 2 O 3 -and inert SiO 2 -supported RuO x catalysts were also referenced. The catalytic activity and thermal stability of these supported RuO x catalysts were compared and investigated in detail.…”

“…Here, the screening and tuning/tailoring of supports including the reducible CeO 2 and Co 3 O 4 as supports were selected to synthesize RuO x -loaded catalysts, which were focused on catalytic combustion of the methane, ethane, and propane mixtures. Actually, Ru/CeO 2 showed high activity for catalytic combustion of propane, while Co 3 O 4 itself was highly active . For comparison, the irreducible/amphoteric Al 2 O 3 - and inert SiO 2 -supported RuO x catalysts were also referenced.…”

Si-doped Al2o3 Nanosheet Supported Pd for Catalytic Combustion of Propane: Effects of Si Doping on Morphology, Thermal Stability and Water-resistance

“…Volatile organic compounds (VOCs) were tightly controlled due to their toxicity and involvement in the formation of photochemical smog, and catalytic combustion was recognized the most e cient technique to eliminate VOCs emission (He et as methane, ethane and propane were considered to be extremely di cult to be oxidized due to their high stability of molecular structures, which were produced from automotive exhaust or industrial processes, such as natural gas vehicle (NGV), lique ed petroleum gas (LPG) vehicles and stationary power source complexation method with different small molecular carboxylic acids presented a high activity (the conversion of propane reached 90% at 250°C) and stability (at least 40 h) (Liu et al 2009). Cai also con rmed that Co 3 O 4 /γ-Al 2 O 3 was a high-active for propane combustion and developed a facile reduction-passivation approach to produce more abundant active cobalt oxides (Cai et al 2020). Hu reported the complete oxidation of propane on Ru/CeO 2 could be achieved below 200°C, due to the rich oxygen storage capacity of CeO 2 host, which can provide a large amount of active oxygen to RuO x for propane oxidation (Hu et al 2018).…”

Supported RuxIr1‐xO2 Mixed Oxides Catalysts for Propane Combustion: Resistance Against Water Poisoning

“…For the catalytic combustion of methane, Pd-based materials are considered as the most active catalysts, while Pt-based catalysts are preferred for the combustion of higher alkanes. [2][3][4][5][6] During the past years, noble metal-based materials (such as Pt, Pd, Rh, Au) [2,[7][8][9][10][11][12][13][14][15] and non-noble metal oxides (such as Co, Mn, Ni) [16][17][18][19][20] have been synthesized and applied as catalyst to the propane combustion reaction. Ruthenium is known to be one of the most active elements in the activation of CÀ H and CÀ C bonds, [21] thus making it a promising and less expensive alternative to Pt for the removal of higher hydrocarbons.…”