title: Β-cyclodextrin polymer as a linker to fabricate ternary nanocomposites AuNPs/pATP-β-CDP/rGO and their electrochemical application.
abstract: Based on the self-assembly strategy, β-cyclodextrin polymer (β-CDP) was used as a linker to connect reduced graphene oxide (rGO) and p-aminothiophenol (pATP). Then, pre-prepared gold nanoparticles (AuNPs) can self-assemble onto the surface of pATP-β-CDP/rGO to obtain new ternary nanocomposites AuNPs/pATP-β-CDP/rGO. The amount or the density of AuNPs can be adjusted by changing the concentration of pATP. UV-vis and (1)H NMR spectra confirmed the formation of inclusion complex between pATP and β-CDP. β-CDP might improve the dispersity of rGO in aqueous and the surface property of rGO. AuNPs/pATP-β-CDP/rGO modified electrode displayed high electrochemical response toward a pesticide-imidacloprid (IDP). The enrichment capability and molecular recognition of β-CDP and the catalytic property of AuNPs for IDP molecules synergistically promoted the electrochemical response of rGO modified electrode. Additionally, ternary nanocomposites exhibited the good electrocatalytic performance for oxygen reduction in O2-saturated 0.1M H2SO4 solution. The proposed synthesis strategy provided a facile, feasible and effective method for development of electrochemical sensors and Au-based catalysts for fuel cells.
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Ming
authors.initials: M
authors.lastname: Chen
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Shen
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Peipei
authors.initials: P
authors.lastname: Liu
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wei
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Meng
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Zheng
authors.affiliation: College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China. Electronic address: gwdiao@yzu.edu.cn.
authors.forename: Guowang
authors.initials: G
authors.lastname: Diao
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D003505:Cyclodextrins / Q000737:chemistry*; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D007093:Imidazoles; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D000073943:Neonicotinoids; D009574:Nitro Compounds; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy; D012996:Solutions; D013052:Spectrometry, X-Ray Emission; D013056:Spectrophotometry, Ultraviolet; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D000814:Aniline Compounds; D003505:Cyclodextrins; D007093:Imidazoles; D000073943:Neonicotinoids; D009574:Nitro Compounds; D010087:Oxides; D012996:Solutions; D013438:Sulfhydryl Compounds; C041953:cyclodextrin polymer; C082359:imidacloprid; D002244:Carbon; D006046:Gold; D006108:Graphite; C064316:4-aminothiophenol; D002482:Cellulose
keywords: Gold nanoparticles; Imidacloprid; Oxygen reduction; Reduced graphene oxide; β-Cyclodextrin polymer