The mechanism of room temperature catalytic C-H dissociation and oxygenation of formaldehyde over nano-zirconia phase-junction

doi:10.1016/j.cej.2019.122498

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	The mechanism of room temperature catalytic C-H dissociation and oxygenation of formaldehyde over nano-zirconia phase-junction
	Zhang, Yufei 3,4; Huang, Yu 3,4; Lee, Shun Cheng 1; Cao, Jun-ji 2,3,4
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-01-15
卷号	380 页码:11
关键词	Catalytic oxidation of HCHO Interfacial electrons transfer Activation barrier C-H dissociation ZrO2 phase-junctions
ISSN号	1385-8947
DOI	10.1016/j.cej.2019.122498
通讯作者	Huang, Yu(huangyu@ieecas.cn) ; Cao, Jun-ji(cao@loess.llqg.ac.cn)
英文摘要	The room temperature catalytic efficiency of formaldehyde (HCHO) is determined by interfacial electrons transfer properties, gas adsorption configuration and reactivity of catalysts. The phase-junctions with lattice planes of high matching degree and abundant active sites may do better in the above three aspects than traditional catalysts and their heterojunctions. In this work, tetragonal-monoclinic nano-zirconia (ZrO2 ) phase-junctions (TMZ) were synthesized for the first time. The highest conversion efficiency of HCHO into CO2 was around 81% at 25 degrees C exceeded the value for pure ZrO2. Density functional theory calculations and in-situ diffuse reflectance infrared Fourier transform spectroscopy measurements revealed that the adsorption enhancement of rich zirconium sites and single electron activation at TMZ interface caused C-H dissociation of HCHO and hydrogenation of O-2 (D-H), significantly lowering the activation barrier of catalytic oxidation of HCHO. Our findings can facilitate further design of more active catalyst for room temperature removal of HCHO.
资助项目	National Key Research and Development Program of China, China[2016YFA0203000] ; National Science Foundation of China, China[51708537] ; National Science Foundation of China, China[41401567] ; National Science Foundation of China, China[41573138] ; China Postdoctoral Science Foundation, China[2017M613237] ; Open foundation of State Key Laboratory of Loess and Quaternary Geology, China[SKLLQG1638] ; Open foundation of State Key Laboratory of Loess and Quaternary Geology, China[SKLLQGPY1605] ; Key Projects of Chinese Academy of Sciences, China[ZDRW-ZS-2017-6] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010300] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010000] ; Key Project of International Cooperation of the Chinese Academy of Sciences, China[GJHZ1543] ; Research Grants Council of Hong Kong, China[PolyU 152083/14E]
WOS关键词	VOLATILE ORGANIC-COMPOUNDS ; FORMIC-ACID ; OXIDATION ; EFFICIENT ; METHANOL ; REMOVAL ; ENERGY ; PERFORMANCE ; INTERFACE ; BEHAVIOR
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000494815600081
资助机构	National Key Research and Development Program of China, China ; National Science Foundation of China, China ; China Postdoctoral Science Foundation, China ; Open foundation of State Key Laboratory of Loess and Quaternary Geology, China ; Key Projects of Chinese Academy of Sciences, China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Key Project of International Cooperation of the Chinese Academy of Sciences, China ; Research Grants Council of Hong Kong, China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12899]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Huang, Yu; Cao, Jun-ji
作者单位	1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China 2.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yufei,Huang, Yu,Lee, Shun Cheng,et al. The mechanism of room temperature catalytic C-H dissociation and oxygenation of formaldehyde over nano-zirconia phase-junction[J]. CHEMICAL ENGINEERING JOURNAL,2020,380:11.
APA	Zhang, Yufei,Huang, Yu,Lee, Shun Cheng,&Cao, Jun-ji.(2020).The mechanism of room temperature catalytic C-H dissociation and oxygenation of formaldehyde over nano-zirconia phase-junction.CHEMICAL ENGINEERING JOURNAL,380,11.
MLA	Zhang, Yufei,et al."The mechanism of room temperature catalytic C-H dissociation and oxygenation of formaldehyde over nano-zirconia phase-junction".CHEMICAL ENGINEERING JOURNAL 380(2020):11.