CO2 hydrogenation to methanol over Cu/ZnO/ZrO2 catalysts prepared by precipitation-reduction method

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

“…Liu et al [24,25] suggested that copper metal and low valence of Cu (Cu þ and Cu dþ ) may affect the catalytic activity of Cubased oxide catalysts. Most recent studies [26][27][28][29][30] declare that resolution of the geometrical and electronic structures of the active site is the first step toward an efficient catalyst design with high selectivity and activity.…”

“…Dong et al [28] applied Cu/ZnO/ZrO 2 catalyst for CO 2 hydrogenation to methanol prepared by precipitationreduction method and reduced by different NaBH 4 , and the report emphasized that methanol and CO are the only carbon containing products under the reaction condition. As the catalytic activities for conversion of CO 2 increased while CH 3 OH decreased with increasing temperature of reaction from 230°C to 270°C.…”

“…XRD patterns of (a) GO, (b) rGO, (c) calcined rGO, (d) 5% CuZn/rGO, (e) 10% CuZn/rGO, (f) 20% CuZn/rGO and (g) 30% CuZn/rGO [54]. Figure 3 The relationship between CH 3 OH selectivity and the number of basic sites over Cu/ZnO/ZrO 2 catalysts [28].…”

“…Among the technologies, effective strategies in chemical (e.g. hydrogenation) conversion could play a considerable role in reduction CO 2 emission [6][7][8].…”

Surface heterojunction between (001) and (101) facets of ultrafine anatase TiO2 nanocrystals for highly efficient photoreduction CO2 to CH4

“…Titanium dioxide (TiO 2 ) and a variety of other semiconductor photocatalysts (ZnO, GaP, WO 3 , CdS, ZnGa 2 O 4 and BiOBr etc.) have been fabricated and employed in assorted manners (separately/mixed/metal-doped forms) for enhancing photocatalytic performances [7][8][9][10][11][12]. Among them, TiO 2 is the most widely investigated catalysts, because of its environment friendly, nontoxicity, cost inexpensive, corrosion resistant, and long-term stability.…”