DICP OpenIR
Oxygen vacancy enhanced catalytic activity of reduced Co3O4 towards p-nitrophenol reduction
Chen, Huihui1,2; Yang, Mei1; Tao, Sha1,2; Chen, Guangwen1
KeywordCo3o4 Reduced Oxygen Vacancy P-nitrophenol Nabh4
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2017-07-15
DOI10.1016/j.apcatb.2017.03.038
Volume209Pages:648-656
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordMETAL-ORGANIC FRAMEWORKS ; 4-NITROPHENOL REDUCTION ; GOLD NANOPARTICLES ; EFFICIENT CATALYSTS ; CONTROLLED POROSITY ; SODIUM-BOROHYDRIDE ; HIGH-PERFORMANCE ; GREEN SYNTHESIS ; LOW-TEMPERATURE ; CO OXIDATION
AbstractWith the aim of replacing noble metal-based catalysts, many efforts have been devoted to the development of highly active non-noble metal-based catalysts for the reduction of p-nitrophenol (p-NP) to p-aminophenol (p-AP) by NaBH4. As a typical transition metal oxide, pristine Co3O4 is normally considered to be poorly active towards the reduction of p-NP to p-AP. In this work, the catalytic activity of pristine Co3O4 was remarkably enhanced by a facile surface reduction with aqueous NaBH4. With the characterization results of various techniques such as XRD, TEM, H2-TPR and XPS, the enhancement in the catalytic activity was attributed to the oxygen vacancies generated during the surface reduction process. The catalytic activity of reduced Co3O4 was found to be strongly dependent on the reduction time and NaBH4 concentration used for catalyst preparation. Through the surface reduction with 0.05 mol/L aqueous NaBH4 for 40 min, the as-prepared reduced Co3O4 showed the best catalytic activity in term of the shortest induction time (<0.75 min) and highest mass-normalized rate constant (20.86 min(-1) g(-1) L). Furthermore, the as-prepared reduced Co3O4 displayed no obvious deactivation during the five successive cycles. (C) 2017 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000400584900065
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152018
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Huihui,Yang, Mei,Tao, Sha,et al. Oxygen vacancy enhanced catalytic activity of reduced Co3O4 towards p-nitrophenol reduction[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,209:648-656.
APA Chen, Huihui,Yang, Mei,Tao, Sha,&Chen, Guangwen.(2017).Oxygen vacancy enhanced catalytic activity of reduced Co3O4 towards p-nitrophenol reduction.APPLIED CATALYSIS B-ENVIRONMENTAL,209,648-656.
MLA Chen, Huihui,et al."Oxygen vacancy enhanced catalytic activity of reduced Co3O4 towards p-nitrophenol reduction".APPLIED CATALYSIS B-ENVIRONMENTAL 209(2017):648-656.
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