Effect of copper species and the presence of reaction products on the activity of methane oxidation on supported CuO catalysts

Methane oxidation with low O2/CH4 ratios in the present of water: Combustion or reforming

“…These metals may have several key propertiessuch as adsorption characteristics-that lead to the appearance of the water inhibitory effect during oxidation. Aguila [12,30] has investigated the catalytic methane combustion over a copper catalyst and points out that OH groups can adsorb on the copper surface (dynamic adsorption), which inhibits methane conversion.…”

“…After adsorption, dehydrogenation begins, in which hydrogen combines with the chemisorbed oxygen (oxidation process) or adsorbs on the metal surface (reforming or decomposition process). Some papers [11][12][13] (using DFT methods) report that because of the low activation energy, oxygen reacts with CAH (from CH 4 ) to form a CAOAH bond (CH 3 OH). However, the formation of the CAOAH bond is a relatively complex process because it goes through the scission of the CAH bond and the formation of CAO and OAH bonds.…”

Effects of CeO2-ZrO2 present in Pd/Al2O3 catalysts on the redox behavior of PdOx and their combustion activity

“…Catalytic combustion of methane has received much attention in recent years, due to its high-energy efficiency and environment-friendly property compared to the traditional combustion process [1][2][3][4][5][6]. Screening and searching a good catalyst with high thermal stability and catalytic activity is the core technique for developing the catalytic combustion [7].…”

Influence of Gold on Hydrotalcite-like Compound Catalysts for Toluene and CO Total Oxidation

“…The copper oxide catalysts are known to be active for the combustion reaction [20][21][22][23]. In fact, CuO/Al 2 O 3 has shown excellent performance for the total oxidation of CO [20], propene and toluene [21,22].…”

“…In fact, CuO/Al 2 O 3 has shown excellent performance for the total oxidation of CO [20], propene and toluene [21,22]. The iron oxide catalysts are known to be an active solid and support for the CO oxidation [23].…”