Investigation of the promotion effect of Mo doped CuO catalysts for the low-temperature performance of NH3-SCR reaction|Hui Wang;Ting Zhu;Yujie Qiao;Shicheng Dong;Zhenping Qu - 期刊导航|首站-论文投稿智能助手|论文发表|论文智能投稿|期刊自助发表推荐|杂志社快速发表|查同导刊-域田数据官方网站

典型文献

Investigation of the promotion effect of Mo doped CuO catalysts for the low-temperature performance of NH3-SCR reaction

文献摘要：

A novel Mo-doped CuO catalyst is developed and used for low-temperature NH3-SCR reaction.Compared with the undoped CuO sample,the Mo doped CuO catalyst shows an increased SCR performance with above 80％NOx conversion at 175℃.The XRD and Raman results have confirmed the incorporation of Mo metal ions into CuO lattice to form Mo-O-Cu species which may be related to the enhanced SCR activity.The XPS and UV-vis results reveal the creation of electron interaction between Cu and Mo in this Mo-O-Cu system which provides an increased amount of Lewis and Br?nsted acid sites,thereby promoting the adsorption capacity of NH3 and NOx as verified by NH3-TPD and NOx-TPD characterization.Besides,it also promotes the formation of oxygen vacancies,leading to the increasing of chemisorbed oxygen species,which improves the NO oxidation to NO2 activity.Furthermore,in situ DRIFTS technology was also used to study the reaction mechanism of this Mo doped CuO catalyst.The formed NO2 could react with NHx(x=3,2)species to enhance the low-temperature NH3-SCR activity via the"fast-SCR"reaction pathway.The nitrate and nitrite ad-species may react with NH3 and NH4+ad-species through the L-H pathway.

文献关键词：

中图分类号：

[1] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）

[2] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）

[3] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）

作者姓名：

Hui Wang;Ting Zhu;Yujie Qiao;Shicheng Dong;Zhenping Qu

作者机构：

Key Laboratory of Industrial Ecology and Environmental Engineering(MOE),School of Environmental Science and Technology,Dalian University of Technology,Dalian 116024,China

文献出处：

中国化学快报（英文版）

引用格式：

[1]Hui Wang;Ting Zhu;Yujie Qiao;Shicheng Dong;Zhenping Qu-.Investigation of the promotion effect of Mo doped CuO catalysts for the low-temperature performance of NH3-SCR reaction)[J].中国化学快报（英文版）,2022(12):5223-5227

A类：

NH4+ad

B类：

Investigation,promotion,effect,Mo,CuO,catalysts,low,temperature,performance,NH3,SCR,reaction,novel,developed,used,Compared,undoped,sample,shows,increased,above,NOx,conversion,Raman,results,have,confirmed,incorporation,metal,ions,into,lattice,species,which,may,related,enhanced,activity,XPS,UV,vis,reveal,creation,electron,interaction,between,this,system,provides,amount,Lewis,Br,nsted,acid,sites,thereby,promoting,adsorption,capacity,verified,TPD,characterization,Besides,also,promotes,formation,oxygen,vacancies,leading,increasing,chemisorbed,improves,oxidation,NO2,Furthermore,situ,DRIFTS,technology,was,study,mechanism,formed,could,NHx,via,fast,pathway,nitrate,nitrite,through

AB值：

0.489274

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