CeO2/CuOx Nanostructured Films for CO Oxidation and CO Oxidation in Hydrogen-Rich Streams Using a Micro-Structured Reactor

Metal–Organic Framework-Based Sustainable Nanocatalysts for CO Oxidation

“…When comparing this behavior with that of the CO oxidation in air (Figure 6), a shift of the curves toward higher temperatures was observed for both the monometallic and bimetallic catalysts. This differs from that observed for dispersed cupric oxide crystals that exhibited a similar activity in both reactions [38], although this behavior was similar to that observed for other types of copper-iron mixed oxide catalysts [36]. This change in conversion levels may be due to structural differences between the active sites present and in the reaction mechanism operating under an oxidizing or reductive atmosphere [39].…”

A layer by layer strategy for the TiO2/CuxO/CeO2hierarchical structure supported on carbon cloth as a photocarrier-assisted photothermal catalyst with fast visible light response

“…In Fig. 4b [39][40][41] and obviously, CC/TiO 2 /Cu x O/ CeO 2 exhibited excellent photocarrier-assisted PT catalytic performance. In order to evaluate the contribution of photocarriers, light intensity has been varied to compare the thermal catalytic activity at the identical temperatures as shown in Fig.…”

“…However in the case of thermal catalysis, CC, CC/TiO 2 , CC/TiO 2 /Cu 2 O, and CC/TiO 2 /Cu x O fail to exhibit activity even when heated to 165 °C. In sharp contrast, CC/TiO 2 /Cu x O/CeO 2 could catalyze 54.5% CO conversion at 156 °C but 100% conversion under irradiation, indicating that the Cu x O/CeO 2 interface should be the active catalytic center, 39–41 and obviously, CC/TiO 2 /Cu x O/CeO 2 exhibited excellent photocarrier-assisted PT catalytic performance. In order to evaluate the contribution of photocarriers, light intensity has been varied to compare the thermal catalytic activity at the identical temperatures as shown in Fig.…”

Microreactor Based on Trimetallic Nano-Oxides Obtained by In Situ Growth from German Silver

“…This fact represents one of the main objectives when pursuing a development of a microreactor with an applied intention, in order to achieve the highest CO conversion at the lowest temperature and stability over time. Finally, it is proper to note that these oxide-based microreactors have extra potential given the surface topography of the catalytic film, which has intercrystalline nanometric interstices that make possible its subsequent modification with promoters such as ceria nanoparticles [35,36], which can further improve its performance in this reaction. Given the outstanding behavior of the CuZnNi(1)RT film, it was subjected to a timeon reaction stability test bringing it to a temperature (~160 °C) that allowed its operation at conversions of 70-80% (Figure 7b).…”