催化作用
X射线光电子能谱
滴定法
吸附
选择性催化还原
材料科学
无机化学
相(物质)
锰
核化学
化学
化学工程
物理化学
有机化学
冶金
工程类
作者
Jingrui Fang,Ge Chen,Yong Sun,Yaojun Liu,Teng-Kun Ma,Xin-Chao Shi
标识
DOI:10.1142/s1793604721510097
摘要
Mn/TiO 2 catalyst was prepared via a rheological phase method by selectively changing the precursor solution pH values (acid, neutral, alkaline) and investigated for the low temperature selective catalytic reduction (SCR) of NO with NH 3 . Various characterization methods such as N 2 adsorption, XRD, XPS, and H 2 -TPD were conducted to probe the physical and chemical properties of the catalyst samples. The contents and distributions of Mn[Formula: see text], Mn[Formula: see text], and Mn[Formula: see text] of the catalysts were tested quantitatively by chemical titration. The catalysts with high content of Mn[Formula: see text] and Mn[Formula: see text] and superior specific surface area prepared under neutral and alkaline condition exhibit better catalytic activity at low temperature.
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