Auto-Combustion Synthesis of Mn1−xAgxCo2O4 Catalysts for Diesel Soot Combustion

Autor: Huanrong Liu, Yanhong Chen, Dongmin Han, Weiwei Ma, Xiaodong Dai, Zifeng Yan
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Catalysts, Vol 12, Iss 10, p 1182 (2022)
Druh dokumentu: article
ISSN: 2073-4344
DOI: 10.3390/catal12101182
Popis: The increase in diesel consumption has led to the proliferation of soot particles from diesel exhaust, resulting in pollution in the form of smog. To solve this problem, a series of Ag-doped Mn1−xAgxCo2O4 spinel catalysts were successfully prepared using an auto-combustion synthesis method that uses glucose as a fuel. X-ray diffraction and Fourier transform infrared spectroscopy analysis were used to analyse the phase structure of the as-prepared samples. The results reveal that the selected catalysts featured a spinel-type structure. Moreover, the catalytic activity of the catalysts for soot combustion was evaluated by temperature-programmed reaction analysis. The temperature required for soot combustion depended heavily on the Ag concentration in the Mn1−xAgxCo2O4 catalyst. The Mn0.8Ag0.2Co2O4 catalyst had a superior catalytic activity with a T90 of 399 °C and CO2 selectivity of 99.3%.
Databáze: Directory of Open Access Journals
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