Oxidative Steam Reforming of Methanol over CuZnAl(Zr)-Oxide Catalysts for the Selective Production of Hydrogen for Fuel Cells: Catalyst Characterization and Performance Evaluation

Production of hydrogen from methanol over Cu/ZnO catalysts promoted by ZrO2 and Al2O3

“…Clearly a combination of the two constitutes the most favorable option. This is consistent with the findings of Velu et al [31,36], who demonstrated that substitution of aluminum for zirconium improves copper dispersion, as well as reducibility. CZ exhibits the lowest copper dispersion, as expected in absence of a structural stabilizer.…”

“…While CZA contains only 10 wt% aluminum, CZZ contains almost 30 wt% zirconium (as metal). The compositions were chosen in agreement with the recommendations by Velu et al [27,31,36], who found that these formulations gave the best enhancement of catalyst activity. (Table 1), catalyst CZZA exhibiting the highest value.…”

“…Recent papers have discussed the POM reaction [22][23][24], as well as the combined process for production of H 2 [25][26][27][28][29][30][31][32][33][34][35][36][37][38]. The Cu/ZnO/Al 2 O 3 catalyst, which is traditionally used for low-temperature gas-shift and methanol synthesis, has been widely used in these reactions.…”

“…In the presence of O 2 , however, another type of catalyst may be even more efficient. Velu et al [27,31,36], who studied the SRM reaction with addition of O 2 , found that ZrO 2 -containing Cu/ZnO/Al 2 O 3 catalysts are best suited for production of H 2 with ultralow CO levels. In the present study, the catalyst compositions were chosen in accordance with the findings in Refs.…”

“…In the present study, the catalyst compositions were chosen in accordance with the findings in Refs. [18,27,31,36].…”