典型文献
Novel Mn-Ce bi-oxides loaded on monolithic nickel foam for low-temperature NH3-SCR de-NOx:Preparation optimization and reaction mechanism
文献摘要：
This study explored the superior citrate method (CM) to synthesize Mn-Ce bi-oxides on 3D monolithic Ni-foam (NF) catalysts for the selective catalytic reduction of NO by NH3 (NH3-SCR).The 17 wt％ Mn(7)Ce(3)Ox/NF (CM-17) catalyst shows the NOx conversion of 98.7％ at 175 ℃ and 90％ in the presence of 10 vol％ H2O.It is revealed that the combination of surface-active oxygen (formed by high-level oxygen vacancies) and strongly oxidized Mn4+ species promots the Fast-SCR reactions,in which Mn4+ species play a leading role in NH3-SCR reaction,and the unsaturated Ni atoms and also Ce3+ species promote electron exchange and thus improve the redox performance.The coexistence mechanisms of Fast-SCR reactions and E-R pathways are observed over Mn-CeOx/NF catalyst,which may be promoted by the Brφnsted sites at low temperature.In addition,the heat resistance,stability,3D monolithic porous structure and excellent physical properties of foam nickel provide a unique growth substrates for cat-alysts preparation and reaction sites for NOx purification.Therefore,industrial application of Mn-Ce bi-oxides loaded on 3D monolithic is proposed to be achieved through reasonable preparation methods.
文献关键词：
中图分类号：
作者姓名：
Shuquan Ni;Xiaolong Tang;Honghong Yi;Fengyu Gao;Chengzhi Wang;Yiran Shi;Runcao Zhang;Wenjuan Zhu
作者机构：
School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants,Beijing 100083,China
文献出处：
引用格式：
[1]Shuquan Ni;Xiaolong Tang;Honghong Yi;Fengyu Gao;Chengzhi Wang;Yiran Shi;Runcao Zhang;Wenjuan Zhu-.Novel Mn-Ce bi-oxides loaded on monolithic nickel foam for low-temperature NH3-SCR de-NOx:Preparation optimization and reaction mechanism)[J].稀土学报（英文版）,2022(02):268-278
A类：
promots
B类：
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AB值：
0.533662
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