Abstract:CO2 hydrogenation is one of the most effective
solutions
for mitigating excessive CO2 emissions. In this work, CuPd
x
/γ-Al2O3 (x = 0.05–5.7 wt %) catalysts were prepared and applied
in CO2 hydrogenation to methanol. The results showed CuPd0.1/γ-Al2O3 achieved excellent
CO2 hydrogenation activity. It is demonstrated that the
Pd species of CuPd0.1/γ-Al2O3 is highly dispersed on the γ-Al2O3 support
at the atomic level and separated from Cu nanoparticles by AC-HAADF-STEM,
rather than forming CuPd alloy. Part of t… Show more
“…When the reaction space velocity was increased, the contact time between the catalyst and the reaction gas decreased with a higher gas flow rate per unit volume of the catalyst. 38 A short contact time means that the catalytic reaction and by-product formation of the RWGS reaction is slowed down to some extent. The stability of CO 2 hydrogenation to methanol catalysts is critical as most catalysts are easily deactivated at higher…”
In the reaction of carbon dioxide hydrogenation to methanol, CO2 was adsorbed and activated on the oxygen vacancies neighboring Zr species, while the rate-limiting step H2 activation occurred in the Zn–O sites.
“…When the reaction space velocity was increased, the contact time between the catalyst and the reaction gas decreased with a higher gas flow rate per unit volume of the catalyst. 38 A short contact time means that the catalytic reaction and by-product formation of the RWGS reaction is slowed down to some extent. The stability of CO 2 hydrogenation to methanol catalysts is critical as most catalysts are easily deactivated at higher…”
In the reaction of carbon dioxide hydrogenation to methanol, CO2 was adsorbed and activated on the oxygen vacancies neighboring Zr species, while the rate-limiting step H2 activation occurred in the Zn–O sites.
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