Quasi free K cations confined in hollandite-type tunnels for catalytic solid (catalyst)-solid (reactant) oxidation reactions

doi:10.1016/j.apcatb.2018.03.049

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	Quasi free K cations confined in hollandite-type tunnels for catalytic solid (catalyst)-solid (reactant) oxidation reactions
	Tang, XF; Zheng, LR; Gao, PX; Zheng LR(郑黎荣); Liu, TZ; Li, Q; Xin, Y; Zhang, ZL
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2018
卷号	232 页码:108-116
关键词	Soot combustion Cryptomelane Potassium Hollandite Solid-solid reaction
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2018.03.049
文献子类	Article
英文摘要	Identification of catalytically active species and reaction pathway in catalytic solid (catalyst)-solid (reactant) reactions is a nontrivial task as exemplified in diesel soot oxidation (combustion), the technology for control of diesel particulate emissions. A physical contact between catalytically active species and solid soot is usually deemed necessary. Herein, thermally-stable hollandite-type alpha-MnO2 (KxMn8O16) nanorod catalysts have been synthesized with one-dimensional tunnel structures partially filled with relatively mobile K cations. These tunnel-confined quasi free K cations are revealed to be responsible for the catalytic soot oxidation activity, proving that physical contact between soot and K cations is unnecessary for solid-solid reaction. A novel catalyst, KyTi8O16 has been successfully designed to boost the catalytic activity in TiO2 toward soot oxidation by engineering a K-contained hollandite-type isostructure.
电子版国际标准刊号	1873-3883
WOS关键词	DIESEL SOOT COMBUSTION ; VOLATILE ORGANIC-COMPOUNDS ; MANGANESE OXIDES ; CO OXIDATION ; ALKALI PROMOTION ; LATTICE OXYGEN ; OMS-2 NANORODS ; COBALT-OXIDE ; POTASSIUM ; SURFACE
WOS研究方向	Chemistry ; Engineering
语种	英语
WOS记录号	WOS:000434004300014
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285974]
专题	高能物理研究所_粒子天体物理中心高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Tang, XF,Zheng, LR,Gao, PX,et al. Quasi free K cations confined in hollandite-type tunnels for catalytic solid (catalyst)-solid (reactant) oxidation reactions[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,232:108-116.
APA	Tang, XF.,Zheng, LR.,Gao, PX.,郑黎荣.,Liu, TZ.,...&Zhang, ZL.(2018).Quasi free K cations confined in hollandite-type tunnels for catalytic solid (catalyst)-solid (reactant) oxidation reactions.APPLIED CATALYSIS B-ENVIRONMENTAL,232,108-116.
MLA	Tang, XF,et al."Quasi free K cations confined in hollandite-type tunnels for catalytic solid (catalyst)-solid (reactant) oxidation reactions".APPLIED CATALYSIS B-ENVIRONMENTAL 232(2018):108-116.