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Updated: Jun 13, 2025

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在MnO2中的水驱动的表面格子氧气激活,用于促进低温NH3-SCR

Dongqi An1,2, Shan Yang3, Qianni Cheng1

  • 1Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China.

Environmental science & technology
|September 9, 2024
PubMed
概括

在二氧化 (γ-MnO) 中的水解离激活了晶格氧,显著提高了氧化 (NO) 的低温选择性催化还原 (SCR). 这种水促进机制增强了催化活性和稳定性.

关键词:
MnO2 MnO2 是一种有机物.NH3−SCR 的使用.网格氧气激活激活方式质子扩散的质子扩散.促进水的效果促进水的效果

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Activated manganese(IV) oxide can selectively oxidize allylic and benzylic alcohols via a radical intermediate mechanism. Primary allylic alcohols are oxidized to aldehydes, while secondary allylic alcohols yield ketones. The redox reaction of potassium permanganate with an Mn(II) salt such as manganese sulfate (under either alkaline or acidic conditions), followed by thorough drying, yields the oxidizing agent: activated MnO2. While MnO2 is insoluble in the solvents used for the reaction, the...
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