Fig. 6: Catalytic performance in CO hydrogenation reaction and microscopic characterizations.
From: The active sites of Cu–ZnO catalysts for water gas shift and CO hydrogenation reactions
The scale bar of b1 corresponds to 5 nm and those of b2 and b3 correspond to 1 nm. a1–a4 Catalytic performance of various Cu and ZnO/Cu catalysts in the CO hydrogenation to methanol reaction. CO2 is not included for selectivity calculations. Representative HRTEM images of used b1 1%ZnO/d-Cu, b2 1%ZnO/c-Cu-682, and b3 1%ZnO/o-Cu catalysts; c Statistical percentage of CuZn alloy nanoparticles of various ZnO/Cu catalysts derived from corresponding HRTEM images. Lattice fringes of 1.82, 2.08, and 2.13 Å respectively correspond to the spacing of Cu{100}, Cu{111} (JCPDS card NO. 89-2838), and ZnCu alloy {111} (JCPDS card NO 89-1397) crystal planes.
