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Highly active Ag clusters stabilized on TiO2 nanocrystals for catalytic reduction of p-nitrophenol
Wang, Xin1,3; Zhao, Zhe1; Ou, Dingrong1; Tu, Baofeng1; Cui, Daan1; Wei, Xuming2; Cheng, Mojie1
KeywordAg/tio2 Nanocomposites Ag Clusters Tio2 Nanocrystal Silver Mirror Reaction P-nitrophenol
Source PublicationAPPLIED SURFACE SCIENCE
2016-11-01
ISSN0169-4332
DOI10.1016/j.apsusc.2016.05.147
Volume385Pages:445-452
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS Research AreaChemistry ; Materials Science ; Physics
WOS KeywordSILVER NANOPARTICLES ; GREEN SYNTHESIS ; PALLADIUM NANOPARTICLES ; AU NANOPARTICLES ; 4-NITROPHENOL ; OXIDE ; GRAPHENE ; GOLD ; SIZE ; HYDROGENATION
AbstractAg/TiO2 nanocomposites comprising of Ag clusters on TiO2 nanocrystal surfaces are of great significance in catalysts and advanced functional materials. Herein a novel method to synthesize Ag/TiO2 nanocomposites with Ag clusters under 2 nm on TiO2 nanocrystal surfaces have been developed. The success of this method relies on a silver mirror reaction in toluene, which refers to the reduction of silver-dodecylamine complexes by acetaldehyde in the presence of mono-dispersed TiO2 nanocrystals. The prepared Ag/TiO2 nanocomposites have been characterized by FT-IR spectra, UV-vis absorption spectra, X-ray diffraction (XRD) analysis, ultra high resolution scanning electron microscope (Ultra-HRSEM), high resolution transmission electron microscope (HRTEM) and X-ray photoelectron spectra (XPS). Catalytic activity of Ag/TiO2 nanocomposites is evaluated for the reduction of p-nitrophenol (4-NP) into p-aminophenol (4-AP) by NaBH4. Results demonstrate that Ag/TiO2 nanocomposites have shown an outstanding catalytic activity as well as a good stability in successive reduction of 4-NP. Noticeably, TOF of Ag/TiO2-0.75 nanocomposites obtained in this work is the highest among Ag based catalysts previously reported. (C) 2016 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000380825900053
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170317
Collection中国科学院大连化学物理研究所
Corresponding AuthorCheng, Mojie
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cells, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xin,Zhao, Zhe,Ou, Dingrong,et al. Highly active Ag clusters stabilized on TiO2 nanocrystals for catalytic reduction of p-nitrophenol[J]. APPLIED SURFACE SCIENCE,2016,385:445-452.
APA Wang, Xin.,Zhao, Zhe.,Ou, Dingrong.,Tu, Baofeng.,Cui, Daan.,...&Cheng, Mojie.(2016).Highly active Ag clusters stabilized on TiO2 nanocrystals for catalytic reduction of p-nitrophenol.APPLIED SURFACE SCIENCE,385,445-452.
MLA Wang, Xin,et al."Highly active Ag clusters stabilized on TiO2 nanocrystals for catalytic reduction of p-nitrophenol".APPLIED SURFACE SCIENCE 385(2016):445-452.
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