Fig. 2From: Heterogeneous catalysts for catalytic CO2 conversion into value-added chemicalsa TEM images of fresh catalyst Ru/ZrO2-SiO2 catalyst; the insets indicate high angle annular dark field (HAADF)-scanning transmission electron microscope (STEM) images. b DRM results for a Ru-based catalyst with a space velocity of 80,000 ml/gcat·h at 800 °C. (Reprinted with permission from ref. [31]. Copyright 2017 Elsevier)Back to article page