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

文献类型：期刊论文

作者Zhang, Yufei1,2; Huang, Yu1,2; Lee, Shun Cheng4; Cao, Jun-ji1,2,3
刊名CHEMICAL ENGINEERING JOURNAL
出版日期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
DOI10.1016/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.
WOS关键词VOLATILE ORGANIC-COMPOUNDS ; FORMIC-ACID ; OXIDATION ; EFFICIENT ; METHANOL ; REMOVAL ; ENERGY ; PERFORMANCE ; INTERFACE ; BEHAVIOR
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研究方向Engineering
语种英语
WOS记录号WOS:000494815600081
出版者ELSEVIER SCIENCE SA
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
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.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China
4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, 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.

入库方式： OAI收割

来源：地球环境研究所

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