Synthesis and Catalytic Performance of Graphene Modified CuO-ZnO- for Hydrogenation to Methanol

Table 2

Temperatures of reduction peaks and their contributions to the TPR pattern over catalysts.

Catalysts	(°C)	(°C)	(°C)	( + )/( + + ) (%)
CZA	—	215	240	43.8
5G-CZA	197	224	245	58.7
10G-CZA	204	227	246	69.1
15G-CZA	215	230	249	56.0

, , and represent the areas of α, β, and γ peaks, respectively.