Investigation of Two-Phase Intergrowth and Coexistence in Mn-Ce-Ti-O Catalysts for the Selective Catalytic Reduction of NO with NH3: Structure-Activity Relationship and Reaction Mechanism

doi:10.1021/acs.iecr.8b05066

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Investigation of Two-Phase Intergrowth and Coexistence in Mn-Ce-Ti-O Catalysts for the Selective Catalytic Reduction of NO with NH3: Structure-Activity Relationship and Reaction Mechanism
	Li, LL ; Wu, YH ; Hou, XY ; Chu, BX ; Nan, B ; Qin, QJ ; Fan, MG ; Sun, CZ ; Li, B ; Dong, LH
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2019
卷号	58 期号:2 页码:849—862
关键词	IN-SITU DRIFTS LOW-TEMPERATURE SCR OXIDE CATALYSTS MNOX-CEO2 CATALYSTS NH3-SCR REACTION MANGANESE OXIDE N-2 SELECTIVITY SO2 RESISTANCE OXIDATION CO
ISSN号	0888-5885
DOI	10.1021/acs.iecr.8b05066
文献子类	期刊论文
英文摘要	TiO2-supported manganese catalysts have been widely investigated because of their unique catalytic properties. A series of Mn-Ce-Ti-O catalysts were synthesized by a modified sol-gel method. Mn atom doping into CT-0/1 samples results in anatase partly transforming into rutile and two-phase coexistence. X-ray photoelectron spectroscopy and NH3 temperature programmed desorption analysis show that the reactions of Mn3+ + Ti4+ <-> Mn4+ + Ti3+ and Ce4+ + Mn3+ <-> Ce3+ + Mn4+ happened, which is propitious to generating plentiful oxygen defects and chemical adsorbed oxygen and beneficial for the oxidation of NO to NO2. In addition, doping of Mn atoms could produce more acid sites and increase the ability of adsorption NH3 that reacted with NO2 to achieve high performance of deNO(x) in a wide temperature window. In situ diffusion reflectance infrared Fourier transform spectroscopy shows that MCT-15/1 achieves unpredictable NH3 selective catalytic reduction activity following transition from the Langmuir-Hinshelwood (L-H) mechanism to the Eley-Rideal (E-R) mechanism with rising temperature.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31682]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China; 2.Nanjing Univ, Sch Environm, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210093, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Li, LL,Wu, YH,Hou, XY,et al. Investigation of Two-Phase Intergrowth and Coexistence in Mn-Ce-Ti-O Catalysts for the Selective Catalytic Reduction of NO with NH3: Structure-Activity Relationship and Reaction Mechanism[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2019,58(2):849—862.
APA	Li, LL.,Wu, YH.,Hou, XY.,Chu, BX.,Nan, B.,...&Dong, L.(2019).Investigation of Two-Phase Intergrowth and Coexistence in Mn-Ce-Ti-O Catalysts for the Selective Catalytic Reduction of NO with NH3: Structure-Activity Relationship and Reaction Mechanism.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,58(2),849—862.
MLA	Li, LL,et al."Investigation of Two-Phase Intergrowth and Coexistence in Mn-Ce-Ti-O Catalysts for the Selective Catalytic Reduction of NO with NH3: Structure-Activity Relationship and Reaction Mechanism".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58.2(2019):849—862.