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Open AccessArticle

Preparation and Electrochemical Characterization of Mesoporous Polyaniline-Silica Nanocomposites as an Electrode Material for Pseudocapacitors

1
Beijing Key Laboratory of Specialty Elastomer Composite Materials, College of Materials Science & Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
2
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Rafael Luque
Materials 2015, 8(4), 1369-1383; https://doi.org/10.3390/ma8041369
Received: 2 February 2015 / Revised: 11 March 2015 / Accepted: 16 March 2015 / Published: 25 March 2015
(This article belongs to the Special Issue Advances in Mesoporous Material 2015)
Mesoporous polyaniline-silica nanocomposites with a full interpenetrating structure for pseudocapacitors were synthesized via the vapor phase approach. The morphology and structure of the nanocomposites were deeply investigated by scanning electron microscopy, infrared spectroscopy, X-ray diffraction, thermal gravimetric analysis and nitrogen adsorption-desorption tests. The results present that the mesoporous nanocomposites possess a uniform particle morphology and full interpenetrating structure, leading to a continuous conductive polyaniline network with a large specific surface area. The electrochemical performances of the nanocomposites were tested in a mixed solution of sulfuric acid and potassium iodide. With the merits of a large specific surface area and suitable pore size distribution, the nanocomposite showed a large specific capacitance (1702.68 farad (F)/g) due to its higher utilization of the active material. This amazing value is almost three-times larger than that of bulk polyaniline when the same mass of active material was used. View Full-Text
Keywords: polyaniline; mesoporous silica; nanocomposites; vapor phase approach; specific capacitance polyaniline; mesoporous silica; nanocomposites; vapor phase approach; specific capacitance
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MDPI and ACS Style

Zu, L.; Cui, X.; Jiang, Y.; Hu, Z.; Lian, H.; Liu, Y.; Jin, Y.; Li, Y.; Wang, X. Preparation and Electrochemical Characterization of Mesoporous Polyaniline-Silica Nanocomposites as an Electrode Material for Pseudocapacitors. Materials 2015, 8, 1369-1383.

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