CAS OpenIR
Facile solution synthesis of Cu2O-CuO-Cu.OH)(2) hierarchical nanostructures for effective catalytic ozone decomposition
Gong, Shuyan1,2; Wu, Xiaofeng1; Zhang, Jilai1; Han, Ning1,3; Chen, Yunfa1,3
2018-06-14
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume20Issue:22Pages:3096-3104
AbstractVarious Cu-based composites for catalytic ozone decomposition have been synthesized by the reduction of Cu2+ using NH2OHHCl in an aqueous solution without the addition of any extra etching agent. A Cu2O-CuO heterogeneous composite with many nanometer-sized CuO nanoplates distributed on the Cu2O surface as well as Cu(OH)(2) nanowires was fabricated, and the structural evolution process was explored. The mechanism for the structure's formation can be attributed to the synergistic reaction of oxidation etching and acidic etching. It was found that the surface morphology and chemical composition of the nanostructures play important roles in catalyzing ozone decomposition. The Cu2O-CuO-Cu(OH)(2) hierarchical nanostructure exhibits a 100% ozone (20 ppm O-3 per air) decomposition efficiency at room temperature after 30 h of continuous operation, showing high stability. In addition, the hierarchical nanostructure also shows high moisture resistance, and the ozone conversion can still be above 80% at high relative humidity levels (ca. 90%) after a 16 h test. The excellent performance can be attributed to the delocalized holes speculated by EPR spectroscopy, which may facilitate the necessary electron transfer between intermediate oxygen anions and the catalytic surface.
DOI10.1039/c8ce00203g
Language英语
WOS KeywordMANGANESE OXIDE CATALYSTS ; ROOM-TEMPERATURE ; CU2O NANOCRYSTALS ; OXYGEN VACANCIES ; GASEOUS OZONE ; OXIDATION ; MECHANISM ; NANOCAGES ; COPPER ; CUO
Funding ProjectState Key Laboratory of Multiphase Complex Systems[MPCS-2015-A-04] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400] ; National Key R&D Program of China[2016YFC0207100] ; National Natural Science Foundation of China[51672273]
WOS Research AreaChemistry ; Crystallography
WOS SubjectChemistry, Multidisciplinary ; Crystallography
Funding OrganizationState Key Laboratory of Multiphase Complex Systems ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China ; National Natural Science Foundation of China
WOS IDWOS:000434312100012
PublisherROYAL SOC CHEMISTRY
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24624
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, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 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,Wu, Xiaofeng,Zhang, Jilai,et al. Facile solution synthesis of Cu2O-CuO-Cu.OH)(2) hierarchical nanostructures for effective catalytic ozone decomposition[J]. CRYSTENGCOMM,2018,20(22):3096-3104.
APA Gong, Shuyan,Wu, Xiaofeng,Zhang, Jilai,Han, Ning,&Chen, Yunfa.(2018).Facile solution synthesis of Cu2O-CuO-Cu.OH)(2) hierarchical nanostructures for effective catalytic ozone decomposition.CRYSTENGCOMM,20(22),3096-3104.
MLA Gong, Shuyan,et al."Facile solution synthesis of Cu2O-CuO-Cu.OH)(2) hierarchical nanostructures for effective catalytic ozone decomposition".CRYSTENGCOMM 20.22(2018):3096-3104.
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