Abstract: Electrochromical Window and Spectroelectrochemical Study of Diphenylamine End-Group Polymer/WO3 Nanoparticles Composite Films (2011 Annual Meeting)

Wednesday, October 19, 2011

Exhibit Hall B (Minneapolis Convention Center)

Yunfeng Li¹, Vivek Iyer¹, Rahul Patil², Jiahua Zhu³, Xi Zhang¹, Suying Wei⁴ and Zhanhu Guo³, (1)Integrated Composites Laboratory (ICL), Dan F Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, (2)Integrated Composites Laboratory (ICL), Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, (3)Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, (4)Chemistry and Biochemistry, Lamar University, Beaumont, TX

Polymer nanocomposite films incorporated with WO3 nanoparticles were electropolymerized through monomer and WO₃ suspended solution on Indium Tin Oxide (ITO) coated glass. The monomer has a structural motif of R-X-R, with R= Diphenylamine end-group and X=Naphthalene diimide group. The UV-Visible incorporated electrochemical spectroscopies coupled with amperometry were also studied on the composite films as they display different colors under different applied potentials in the range of 0-2 V vs. Ag/AgCl. These films were also characterized by FTIR, and UV-Vis spectroscopies, the scanning electron microscopy (SEM). It was shown that many of these WO₃ nanoparticless were uniformly distributed in the polymeric matrix by microscopy and SEM. An air-stable Electrochromical window was also assembled and obtained by a home-made electrochemical cell and it shows stable electrochromis even after 100 times scan.

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See more of this Session: Mesd Poster Session
See more of this Group/Topical: Materials Engineering and Sciences Division