Deactivation of Mn/TiO2 catalyst for NH3-SCR reaction: effect of phosphorous. Issue 14 (27th January 2016)

• Record Type: Journal Article
• Authors: Yang, Ning-zhi; Guo, Rui-tang; Wang, Qing-shan; Pan, Wei-guo; Chen, Qi-lin; Lu, Chen-zi; Wang, Shu-xian
• Is Part Of: RSC advances. Volume 6:Issue 14(2016)
• Page Start: 11226
• Page End: 11232
• Publication Date: 2016-01-27
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra27713b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The deactivation mechanism of phosphorous on a Mn/TiO2 catalyst for selective catalytic reduction of NO with NH3 was investigated in this study. Abstract : The deactivation mechanism of phosphorous on a Mn/TiO2 catalyst for selective catalytic reduction of NO with NH3 was investigated in this study. It was found that the NH3 -SCR reaction over the Mn/TiO2 catalyst obeyed the Langmuir–Hinshelwood mechanism. From the characterization results, it could be found the addition of phosphorous on the Mn/TiO2 catalyst would decrease its reducibility and inhibit the adsorption of chemisorbed oxygen and NO x species on its surface. As a result, the P-doped Mn/TiO2 catalyst was deactivated.