scholarly journals Tungsten Oxide and Polyaniline Composite Fabricated by Surfactant-Templated Electrodeposition and Its Use in Supercapacitors

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Benxue Zou ◽  
Shengchen Gong ◽  
Yan Wang ◽  
Xiaoxia Liu

Composite nanostructures of tungsten oxide and polyaniline (PANI) were fabricated on carbon electrode by electrocodeposition using sodium dodecylbenzene sulfonate (SDBS) as the template. The morphology of the composite can be controlled by changing SDBS surfactant and aniline monomer concentrations in solution. With increasing concentration of aniline in surfactant solution, the morphological change from nanoparticles to nanofibers was observed. The nanostructured WO3/PANI composite exhibited enhanced capacitive charge storage with the specific capacitance of 201 F g−1at 1.28 mA cm−2in large potential window of-0.5~ 0.65 V versus SCE compared to the bulk composite film. The capacitance retained about 78% when the sweeping potential rate increased from 10 to 150 mV/s.

2011 ◽  
Vol 76 (12) ◽  
pp. 1855-1877 ◽  
Author(s):  
Muammer Kavanoz ◽  
Mine Şen ◽  
Nuran Özçiçek Pekmez

A new surface based on poly(vinylferrocenium)perchlorate-polyaniline (PVF+ClO4–-PANI) composite-modified platinum electrode was prepared electrochemically to combine the electrocatalytic properties of an intrinsically conducting polymer and a redox polymer. The composite film was synthesized as a bilayer from individual polymerization solutions. Furthermore, PVF+ClO4– and PANI polymers were simultaneously deposited as a mixture from a methylene chloride solution containing PVF polymer and aniline monomer on Pt electrode. When PVF+ClO4– and PANI were codeposited by cycling the potential between 0.20 and 1.80 V vs Ag|AgCl, these polymers were encapsulated within each other. The encapsulation of PVF+ClO4– inside the growing PANI polymer provided the retainment of PVF+ClO4– on the electrode surface even if it was in dedoped form (PVF). This composite film was characterized by cyclic voltammetry, FTIR, SEM and conductivity measurements. The response of the composite film to catechol and hydroquinone was investigated by chronocoulometry in aqueous medium. It was found that the increase in charge consumption for catechol and hydroquinone was observed up to 7.5 and 5.0 times, respectively, when compared to that of PANI film. This might be due to the presence of PVF+ClO4– in the composite film, which played an important role in accelerating the electron transfer.


RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70345-70351 ◽  
Author(s):  
Qingkun Kong ◽  
Meng Li ◽  
Chao Ma ◽  
Hongmei Yang ◽  
Shenguang Ge ◽  
...  

A simple electrochemiluminescence (ECL) aptasensor for adenosine triphosphate (ATP) based on graphene/polyaniline (GR/PANI) composite films modified glassy carbon electrode (GCE) was successfully fabricated.


The Analyst ◽  
2019 ◽  
Vol 144 (6) ◽  
pp. 1960-1967 ◽  
Author(s):  
Chao Chen ◽  
Pengcheng Zhao ◽  
Meijun Ni ◽  
Chunyan Li ◽  
Yixi Xie ◽  
...  

A temperature-induced sensing film consisting of poly(N-vinylcaprolactam) (PVCL), graphene oxide (GO) and glucose oxidase (GOD) was fabricated and used to modify a glassy carbon electrode (GCE).


2019 ◽  
Vol 9 (01) ◽  
pp. 99-106 ◽  
Author(s):  
Jesse S. Ko ◽  
Martin D. Donakowski ◽  
Megan B. Sassin ◽  
Joseph F. Parker ◽  
Debra R. Rolison ◽  
...  

Abstract


2015 ◽  
Vol 7 (47) ◽  
pp. 26326-26332 ◽  
Author(s):  
Suzuko Yamazaki ◽  
Hiroki Ishida ◽  
Dai Shimizu ◽  
Kenta Adachi

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