Facile and Flexible Preparation of Highly Active CuCe Monolithic Catalysts for VOCs Combustion

Abstract

A novel and practical strategy of preparing mixed oxides/monolithic catalysts for exhaust gas purification is presented in this work. Highly active nano‐CuCe catalyst dispersion liquid is synthesized through solvothermal method, and then various CuCe monolithic catalysts are prepared just by a simple spraying method. The as‐prepared catalysts showed excellent activity and stability for volatile organic compounds (VOCs) destruction, which can be attributed to the good structural and chemical properties of the well‐dispersed CuCe active species on the carrier surface. This strategy provides a very facile and flexible way for preparation of monolithic catalysts with versatile shapes to accommodate VOCs combustion facilities. It shows great potential in practical applications.

Fabrication of Monolithic Catalysts: Comparison of the Traditional and the Novel Green Methods

“…Chen et al [38] prepared the Cu-Ce catalyst dispersion liquid through the solvothermal method and sprayed it on cordierite honeycomb. The obtained monolith catalysts showed 95% conversion of toluene at 300 • C. After this, the same group synthesized Pt/TiO 2 /cordierite catalysts [39] and Pt/FeCrAl fiber catalyst [40] in the same way.…”

Al‐modified Mesoporous SiO2‐matrix‐supported Uniform CeO2 Nanodots with Superior Catalytic Efficiency in DCE Combustion

“…The chlorinated volatile organic compounds (CVOCs) released extensively in the industry have been classified as highly harmful emissions [1,2] . Generally, several abatement technologies (adsorption/absorption, photocatalytic degradation, plasma oxidation, and so forth) are used to control the release of CVOCs and minimize their negative impacts on the environment [3,4] . Besides, the catalytic combustion of CVOCs is considered as a well‐established and efficient process, which can convert CVOCs with high chemical stability to desirable products of HCl, H 2 O, and CO 2 , avoiding secondary pollution [5,6]…”

Impact of Mn addition on catalytic performance of Cu/SiBEA materials in total oxidation of aromatic volatile organic compounds

“…The most commonly used oxide systems for the total oxidation of VOCs are: CuO [6,7], MnO x [8,9], Cr 2 O 3 [10], NiO [11,12], Fe 2 O 3 [13,14] and Co 3 O 4 [15][16][17]. Two-component catalysts containing Co-Pt [18,19], Co-Ce [20,21], Co-Mn [22,23], Cu-Mn [24,25], Mn-Ce [26,27], Cu-Ce [28,29] or Ni-Mn [30] were also described in the literature. They often showed higher catalytic activity compared to that observed for individual components.…”