LaO-CeO-Supported Bimetallic Cu-Ni DRM Catalysts.

The present work is focused on nickel catalysts supported on LaO-CeO binary oxides without and with the addition of Cu to the active component for the dry reforming of methane (DRM). The catalysts are characterized using XRD, XRF, TPD-CO, TPR-H, and low-temperature N adsorption-desorption methods. This work shows the effect of different La:Ce ratios (1:1 and 9:1) and the Cu addition on the structural, acid base, and catalytic properties of Ni-containing systems.

Unraveling the Structural and Compositional Peculiarities in CTAB-Templated CeO-ZrO-MnO Catalysts for Soot and CO Oxidation.

Structure-performance relationships in functional catalysts allow for controlling their performance in a wide range of reaction conditions. Here, the structural and compositional peculiarities in CTAB-templated CeO-ZrO-MnO catalysts prepared by co-precipitation of precursors and their catalytic behavior in CO oxidation and soot combustion are discussed. A complex of physical-chemical methods (low-temperature N sorption, XRD, TPR-H, Raman, HR TEM, XPS) is used to elucidate the features of the formation of interphase boundaries, joint phases, and defects in multicomponent oxide systems.

Ni-Based SBA-15 Catalysts Modified with CeMnO for CO Valorization via Dry Reforming of Methane: Effect of Composition on Modulating Activity and H/CO Ratio.

Dry reforming of methane with ratio CH/CO = 1 is studied using supported Ni catalysts on SBA-15 modified by CeMnO mixed oxides with different Ce/Mn ratios (0.25, 1 and 9). The obtained samples are characterized by wide-angle XRD, SAXS, N sorption, TPR-H, TEM, UV-vis and Raman spectroscopies.

Ag Catalysts Supported on CeO, MnO and CeMnO Mixed Oxides for Selective Catalytic Reduction of NO by CH.

In the present study CeO, MnO and CeMnO mixed oxide (with molar ratio Ce/Mn = 1) were prepared by sol-gel method using citric acid as a chelating agent and calcined at 500 °C. The silver catalysts (1 wt.% Ag) over the obtained supports were synthesized by the incipient wetness impregnation method with [Ag(NH)]NO aqueous solution.