Different morphologies on Cu–Ce/TiO<sub>2</sub> catalysts for the selective catalytic reduction of NO<sub><i>x</i></sub> with NH<sub>3</sub> and DRIFTS study on sol–gel nanoparticles
Ke Zhuang, Pengkai Jin, Liu Yang, Jie Yao, Lemeng Yu, Zhongyi Sheng, Xinyue Chu, Zhipeng Zhuang, Xiongbo Chen
Abstract
to produce abundant Lewis acid sites, which would significantly increase the adsorption reaction of ammonia on the catalyst surface, thereby promoting the occurrence of the Eley-Rideal (E-R) mechanism. With the Ce-Ti interaction on the atomic scale, the Ce-O-Ti structure enhanced the redox properties at a medium temperature. In addition, cerium oxide enhances the strong interaction between the catalyst matrix and CuO particles. Therefore, the reducibility of the CuO species was enhanced.
Topics & Concepts
CatalysisSelective catalytic reductionReduction (mathematics)Materials scienceChemistryInorganic chemistryOrganic chemistryGeometryMathematicsCatalytic Processes in Materials ScienceGas Sensing Nanomaterials and SensorsCatalysis and Oxidation Reactions