Optimization of the Pd/Cu ratio in Pd-Cu-Zn/SiC catalysts for the CO 2 hydrogenation to methanol at atmospheric pressure

Ni5Ga3 catalysts for CO2 reduction to methanol: Exploring the role of Ga surface oxidation/reduction on catalytic activity

“…For example, due to the issues involving CO2 noted above, copper alone is not an active catalyst for CO2 hydrogenation to methanol, active only for CO hydrogenation; the bimetallic nature of the Cu-Zn sites in the commercial Cu/ZnO/Al2O3 catalyst, however, yields high activities for CO2 hydrogenation to methanol [7,14]. The Cu-Zn system is one of many catalyst systems that leverage bimetallic synergies to achieve improved selectivity in methanol synthesis from CO2; related bimetallics include Pd-Cu [15][16][17][18], Ni-Cu [19][20][21], Ag-Cu [22,23], Pt-Cu [24], Pd-Ga [25][26][27][28], Pd-Zn [18], Pd-In [29][30][31][32], and Rh-W [33].…”

Influence of reduction temperature on the formation of intermetallic Pd2Ga phase and its catalytic activity in CO2 hydrogenation to methanol

“…Finally, the performance of the Pd 2 Ga/SiO 2 catalyst was compared with the reported literature (Table ) on low‐pressure methanol synthesis from CO 2 hydrogenation. The rate of methanol formation over Pd 2 Ga/SiO 2 catalyst is higher than that reported for most of the catalysts at atmospheric pressure . Table shows that the intermetallic Pd–Ga is more active and selective than Pd/ZnO, 37.5 PdCuZn/SiC, and Cu/ZnO catalyst.…”

“…The rate of methanol formation over Pd 2 Ga/SiO 2 catalyst is higher than that reported for most of the catalysts at atmospheric pressure. 12,[35][36][37][38] Table 2 shows that the intermetallic Pd-Ga is more active and selective than Pd/ZnO, 37.5 PdCuZn/SiC, and Cu/ZnO catalyst. The Pd 2 Ga catalyst possesses a higher density of active sites than many bimetallic-and trimetallic-promoted Cu catalysts.…”

Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

“…The PdSn/Vulcan XC‐72R displayed a negative peak at around 49.7 °C, which could be attributed to the decomposition of palladium hydride (PdH x ) . PdH x forms the evolution of PdO in the hydrogen environment at room temperature . As can be seen in Figure , the reduction of SnO x indicates three peaks at around 179.5 °C, 269.1 °C and 362.9 °C.…”