Cobalt nanoparticles encapsulated in porous nitrogen-doped carbon: Oxygen activation and efficient catalytic removal of formaldehyde at room temperature

doi:10.1016/j.apcatb.2019.117981

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

	Cobalt nanoparticles encapsulated in porous nitrogen-doped carbon: Oxygen activation and efficient catalytic removal of formaldehyde at room temperature
	Zhu, Dandan 1,3; Huang, Yu 2,3; Cao, Jun-ji 2,3; Lee, Shun Cheng 5; Chen, Meijuan 4; Shen, Zhenxing 1,3
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019-12-05
卷号	258 页码:8
关键词	Metallic Co nanoparticles Porous nitrogen-doped carbon HCHO removal Catalytic oxidation
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2019.117981
通讯作者	Huang, Yu(huangyu@ieecas.cn) ; Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
英文摘要	The removal of carcinogenic formaldehyde (HCHO) to improve indoor air quality has attracted significant attention. Designing efficient catalysts for practical HCHO oxidation without use of noble metals remains challenging. In this study, metallic Co nanoparticles were encapsulated with porous nitrogen-doped carbon (Co@NC). This catalyst achieved HCHO elimination at room temperature for the first time. The as-prepared Co@NC catalyst exhibited superior catalytic activity (> 80%) for HCHO removal compared with the oxidized one, and possessed the excellent stability. Theoretical calculations showed that the metallic Co in Co@NC is the active site for O-2 dissociation, which enhanced the catalytic activity compared to traditional transition-metal oxides, such as Co3O4 with the high-valence state Co3+ providing active sites. The formate species was the main intermediate, which was further oxidized to CO2 as the final product. Hence, an efficient non-noble-metal catalyst for room-temperature HCHO oxidation was developed.
资助项目	National Key Research and Development Program of China[2016YFA0203000] ; National Key Research and Development Program of China[2017YFC0212200] ; National Science Foundation of China[41573138] ; National Science Foundation of China[51878644] ; Key Research and Development Program of Shaanxi Province[2018ZDCXL-SF-02-04] ; Hundred Talent Program of the Chinese Academy of Sciences
WOS关键词	INDOOR FORMALDEHYDE ; MANGANESE OXIDE ; HCHO OXIDATION ; PERFORMANCE ; PT/TIO2 ; SURFACE ; MNO2 ; MECHANISM ; NANORODS
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000487570000031
资助机构	National Key Research and Development Program of China ; National Science Foundation of China ; Key Research and Development Program of Shaanxi Province ; Hundred Talent Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13342]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Huang, Yu; Shen, Zhenxing
作者单位	1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710049, Shaanxi, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Dandan,Huang, Yu,Cao, Jun-ji,et al. Cobalt nanoparticles encapsulated in porous nitrogen-doped carbon: Oxygen activation and efficient catalytic removal of formaldehyde at room temperature[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,258:8.
APA	Zhu, Dandan,Huang, Yu,Cao, Jun-ji,Lee, Shun Cheng,Chen, Meijuan,&Shen, Zhenxing.(2019).Cobalt nanoparticles encapsulated in porous nitrogen-doped carbon: Oxygen activation and efficient catalytic removal of formaldehyde at room temperature.APPLIED CATALYSIS B-ENVIRONMENTAL,258,8.
MLA	Zhu, Dandan,et al."Cobalt nanoparticles encapsulated in porous nitrogen-doped carbon: Oxygen activation and efficient catalytic removal of formaldehyde at room temperature".APPLIED CATALYSIS B-ENVIRONMENTAL 258(2019):8.