CeO2-CuO/Cu2O/Cu monolithic catalysts with three-kind morphologies Cu2O layers for preferential CO oxidation
Source abstract
Abstract
Abstract The supports of copper slices with three-kind morphologies Cu 2 O layers were prepared by the hydrothermal method. The Cu 2 O layers are rod-like structure, three-dimensional reticular and porous morphology as well as flower-like morphology, respectively. The CeO 2 -CuO/Cu 2 O/Cu monolithic catalysts present porous and network structure or foam morphology after loading CeO 2 and CuO. Cu and Ce elements are uniformly dispersed onto the support surface. It is found that the monolithic catalyst with flower-like Cu 2 O layer displays better low-temperature activity because of highly-dispersed CuO and high O latt concentration. The monolithic catalysts with rod-like or reticular-morphology Cu 2 O layers present high-temperature activity due to larger CuO crystallite sizes and good synergistic effect at copper-ceria interfacial sites. The as-prepared CeO 2 -CuO/Cu 2 O/Cu monolithic catalysts show good performance in the CO-PROX reaction. The generation of Cu 2 O layers with three-kind morphologies is beneficial to the loading and dispersion of copper oxides and ceria.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Copper-based nanomaterials and applications · Catalysis and Oxidation Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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