NDLI: High-temperature preparation and electrochemical properties of TiO$_{2}$ anatase phase-mounted carbon aerogels

Content Provider	Springer Nature Link
Author	Meng, Qinghan Li, Xingchao Liu, Ling Cao, Bing
Copyright Year	2012
Abstract	TiO$_{2}$ anatase phase-mounted carbon aerogels (CAs) were synthesized via the sol–gel polymerization of a mixture of resorcinol, formaldehyde, and tetrabutyl orthotitanate, followed by gelation, supercritical drying, and carbonization in N$_{2}$ atmosphere. Ethanol was selected as the solvent in the sol–gel polymerization process. The morphology and microstructural characteristics of the TiO$_{2}$-mounted carbon aerogel sample were obtained using thermogravimetry, transmission electron microscopy, scanning electron microscopy, N$_{2}$ adsorption–desorption, and X-ray diffraction methods. The total pore volume and average pore sizes increased with TiO$_{2}$ addition. Titania phase in anatase form was found to be more homogeneously distributed in the CAs at 900 °C. The anatase–rutile transformation did not take place at carbonization temperatures from 500 to 1100 °C and cyclic voltammetry measurements showed that the TiO$_{2}$-mounted CAs exhibit good reversibility and high specific capacity as electrode materials, and the anatase in the carbon structure were not involved in the redox reactions. Electrochemical impedance spectroscopy demonstrated that the CA electrode behaves as an excellent capacitor with low resistance.
Starting Page	5926
Ending Page	5932
Page Count	7
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	47
Issue Number	16
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2012-04-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crystallography Characterization and Evaluation of Materials Materials Science Continuum Mechanics and Mechanics of Materials Polymer Sciences Mechanics
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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