CAS OpenIR
Heterostructured Ni/NiO Nanocatalysts for Ozone Decomposition
Gong, Shuyan1,2; Wang, Anqi1,2; Wang, Ying1; Liu, Haidi1; Han, Ning1,2,3; Chen, Yunfa1,2,3
2020
Source PublicationACS APPLIED NANO MATERIALS
ISSN2574-0970
Volume3Issue:1Pages:597-607
AbstractWater vapor is one of the main factors that deactivate an ozone decomposition catalyst, which limits its applications under practical conditions. In this work, a heterostructured Ni/NiO nanocatalyst is synthesized using a citric sol- gel method, which displays 100% removal efficiency to 1000 ppm ozone at room temperature in a dry flow (space velocity 240 000 mL g(-1) h(-1)). Importantly, the removal efficiency is still >98% at a high relative humidity RH of 90% after 8 h of testing, which is twice the efficiency of the pure NiO nanoparticles. The high humidity resistance of the Ni/NiO nanocatalyst can be interpreted as the weak adsorption of water on its surface, as proven by H2O temperature-programmed desorption, X-ray photoelectron spectroscopy, and chemiluminescence (CL). Surface atomic models are also established to present the reaction path of ozone on a catalyst surface under high humidity. In addition, as a proof of concept, a heterostructured Ni/NiO foam monolithic catalyst has been synthesized with nearly 100% decomposition efficiency to 10 ppm ozone at RH 90%. Therefore, these results show the great potency of the Ni/NiO heterogeneous nanocatalyst for ozone removal in harsh environments and can improve the understanding of the ozone decomposition process on a catalyst surface under high humidity.
KeywordNi/NiO heterostructure sol-gel ozone decomposition humidity resistance
DOI10.1021/acsanm.9b02143
Language英语
WOS KeywordMANGANESE OXIDE CATALYST ; SINGLET-OXYGEN ; NICKEL-OXIDE ; GAS SENSOR ; NIO ; PERFORMANCE ; TEMPERATURE ; OXIDATION ; EFFICIENT ; O-3
Funding ProjectNational Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2015-A-04]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems
WOS IDWOS:000510073600063
PublisherAMER CHEMICAL SOC
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39550
Collection中国科学院过程工程研究所
Corresponding AuthorHan, Ning; Chen, Yunfa
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Gong, Shuyan,Wang, Anqi,Wang, Ying,et al. Heterostructured Ni/NiO Nanocatalysts for Ozone Decomposition[J]. ACS APPLIED NANO MATERIALS,2020,3(1):597-607.
APA Gong, Shuyan,Wang, Anqi,Wang, Ying,Liu, Haidi,Han, Ning,&Chen, Yunfa.(2020).Heterostructured Ni/NiO Nanocatalysts for Ozone Decomposition.ACS APPLIED NANO MATERIALS,3(1),597-607.
MLA Gong, Shuyan,et al."Heterostructured Ni/NiO Nanocatalysts for Ozone Decomposition".ACS APPLIED NANO MATERIALS 3.1(2020):597-607.
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