Abstract
In this paper, Au nanoparticles (AuNPs) were in - situ synthesized on the shell layer of the core-shell type polystyrene/SiO2/poly(N-isopropylacrylamide- co -3-methacryloxypropyltrimethoxysilane) (PS/SiO2/P(NIPAM- co - MPTMS)) composite microspheres with inorganic-organic hybrid network structure as support. The supported AuNPs catalysts were obtained by using self-assembly of alkanethiol compound with the different chain length on the surface of AuNPs. We chose the reduction of 4-nitrophenol (4-NP) as a model reaction. The results were demonstrated that the surface structure of AuNPs can be regulated via changing the dosage of sodium borohydride reducing agent. In addition, the catalytic activity was significantly influenced by the chain length and modified amounts of the alkanethiol. The results have found that the desorption of Au-S bond is prefer to form the local reaction micro-sites comprising of alkyl chain. Therefore, the catalytic performance could be regulated by changing the surface structures of the alkanethiol self-assembly monolayer (SAMs) on the AuNPs surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
