Ni掺杂对锰氧化物选择催化还原NO活性的影响  

Effect of Ni for selective catalytic reduction of NO over manganese oxides

作　　者：杨北平[1] 陈利强[1,2] 孙晶[1] 刘立红[1,2] 刘冬影[1] 历亳 袁福龙[2] 

机构地区：[1]黑河学院理学院,黑龙江黑河164300 [2]黑龙江大学化学化工与材料学院,哈尔滨150080

出　　处：《黑龙江大学工程学报》2017年第2期31-35,共5页Journal of Engineering of Heilongjiang University

基　　金：国家自然科学基金资助项目(20876034);黑河学院科学技术研究项目(KJY201703)

摘　　要：通过XRD、H_2-TPR、NH_3(NO)-TPD和N_2吸附-脱附等分析测试手段,研究了Ni掺杂锰氧化物催化剂选择催化还原NO活性的影响。研究发现Ni_(0.3)Mn_(0.7)O_x催化剂的NH_3选择催化还原NO的活性最好,其可能原因是掺杂Ni后Ni_(0.3)Mn_(0.7)O_x催化剂的氧化还原能力得到提高,比表面积和孔容增加及有利于低温NH_3和NO的吸附。Ni doping manganese oxides catalysts were studied for selective catalytic reduction of NO by XRD, H2- TPR, NH3 （NO）-TPD and N2 adsorption-desorption. The study found that the catalyst Ni0.3 Mn0.7Ox showed the best selective catalytic reduction activity, the reasons may be as follows： Ni0.3 Mn0.7Ox catalyst showed improved redox, increased specific surface area and pore volume, at the same time, added NH3 and NO adsorption at low temperature.

关 键 词：锰氧化物 催化 还原 吸附 

分 类 号：O643.32[理学—物理化学]