The influence of CO2, C3H6, NO, H2, H2O or SO2 on the low-temperature oxidation of CO on a cobalt-aluminate spinel catalyst (Co1.66Al1.34O4)

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

“…Transition metal-oxide spinels are important in many application fields because of their high thermal resistance and catalytic, electronic and optical properties. They are commonly used in semiconductor and sensor technology as well as in heterogeneous catalysis [6][7][8][9][10][11][12][13][14]. Transition metal aluminates are commonly prepared by a solid state reaction [15], co-precipitation method [16], hydrothermal [17], combustion [18], and sol-gel [19,20].…”

A DFT Study of CO Catalytic Oxidation by N2O or O2 on the Co3O4(110) Surface

“…[1][2][3][4][5] Co 3 O 4 and its doped or supported systems are well known to be active for the oxidation of carbon monoxide at low temperatures. [6][7][8][9][10][11][12][13] Recently, Xie et al reported that Co 3 O 4 nanorods not only catalyze CO oxidation at temperatures as low as À77 8C, but also remain stable in a moist stream of normal feed gas. [14] They also found that the Co 3 O 4 nanorods predominantly expose their (110) planes, favoring the presence of active Co 3 + species at the surface.…”

Origin of the High Activity and Stability of Co3O4 in Low-temperature CO Oxidation

“…These applications include air-purification devices for respirator [1], pollution control devices for reducing industrial and automotive emissions [2], closed-cycle carbon dioxide lasers [3], carbon monoxide gas sensors [4,5], removing trace quantities of CO from the ambient air in sealed cabins and fuel cell [6,7]. Precious metal catalysts, such as Au/TiO 2 , Au/BaCO 3 , Au/ZrO 2 , Au/CeO 2 , Au/La 2 O 3 , Au/CeO 2 /Al 2 O 3 , Pd/ZnO, Pd/CeO 2 -TiO 2 , Pd/CeO 2 , Pt/CeO 2 and Sn-Pt/SiO 2 , have been studied for CO oxidation and showed high activities [8][9][10][11][12][13][14][15][16][17].…”