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Copper nanoparticle@graphene composite arrays and their enhanced catalytic performance

文献类型：期刊论文

作者Hang, Lifeng1,2; Zhao, Yang3; Zhang, Honghua1; Liu, Guangqiang1; Cai, Weiping1; Li, Yue1,2; Qu, Liangti3
刊名ACTA MATERIALIA
出版日期2016-02-15
卷号105期号:无页码:59-67
关键词Copper Nanospheres Graphene Oxide Core-shell Structure Catalyst
DOI10.1016/j.actamat.2015.12.029
文献子类Article
英文摘要Noble metal nanoparticles have been widely investigated for catalysis, while the source of noble metal is limited. Copper nanoparticles are the ideal candidates for replacing noble metal nanoparticles in the specific catalysis field. However, Cu NPs from traditional methods are generally nonuniform in morphology and wide distribution in size. In this work, a simple method is developed to fabricate uniform copper nanosphere arrays on a large scale (similar to cm(2)) using monolayer colloidal crystals as templates. A reduced graphene oxide (rGO) is further introduced on the surfaces of Cu nanospheres to form the Cu NPs@rGO core-shell structured arrays on the substrates by the redox reaction. The rGO shell can protect the Cu NPs from oxidation, which guarantees the good stability of Cu@rGO nanoparticle arrays. The obtained Cu@rGO core-shell arrays (periodic length: 350 nm, diameter: 110 nm) exhibit excellent catalytic performance towards the reduction of 4-nitrophenol to 4-aminophenol, which is 14 times larger than that of Au nanoparticles as previously reported. With decreasing the length of periodicity of Cu@rGO core-shell array, its catalytic activity increases. When the periodicity is fixed, with increase of Cu NP size, the value of activity factor k is decreasing. More importantly, such Cu@rGO core-shell arrays on the supporting substrates can be easily recycled for the catalytic reaction. These Cu@rGO arrays have also other potential applications in SERS, electrochemistry, biosensor, etc. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
WOS关键词PERIODIC MICRO/NANOSTRUCTURED ARRAYS ; COLLOIDAL TEMPLATES ; RAMAN-SCATTERING ; CARBON NITRIDE ; FABRICATION ; OXIDE ; SPECTROSCOPY ; CRYSTALS ; GOLD ; STABILITY
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000370086500008
资助机构National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; National Basic Research Program of China(2012CB932303) ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189) ; 51571189)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22034]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Beijing Inst Technol, Sch Chem, Beijing Key Lab Photoelect Electrophoton Convers, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Hang, Lifeng,Zhao, Yang,Zhang, Honghua,et al. Copper nanoparticle@graphene composite arrays and their enhanced catalytic performance[J]. ACTA MATERIALIA,2016,105(无):59-67.
APA Hang, Lifeng.,Zhao, Yang.,Zhang, Honghua.,Liu, Guangqiang.,Cai, Weiping.,...&Qu, Liangti.(2016).Copper nanoparticle@graphene composite arrays and their enhanced catalytic performance.ACTA MATERIALIA,105(无),59-67.
MLA Hang, Lifeng,et al."Copper nanoparticle@graphene composite arrays and their enhanced catalytic performance".ACTA MATERIALIA 105.无(2016):59-67.

入库方式： OAI收割

来源：合肥物质科学研究院

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