A new method to prepare RuO2·xH2O/carbon nanotube composite for electrochemical capacitors

Deng, Guohong; Xiao, Xuechun; Chen, J.H.; Zeng, Xiandong; He, Deliang; Kuang, Yafei

doi:10.1016/j.carbon.2004.12.031

Cited by 35 publications

(15 citation statements)

References 16 publications

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“…have been intensively studied as ES materials. 123,192,193,209,213,221,223,231,233,234,[245][246][247][248][249][250][251][252][253][254][255][256][257][258][259][260][261][262] The quantity of RuO 2 required in the electrode layer has thereby been reduced significantly, and higher specific capacitances have been achieved, such as 256 201 It is necessary to point out that many investigators utilized a very high annealing temperature to obtain RuO 2 /carbon composites. 247 Obviously, as mentioned previously, high temperature will lead to higher crystallinity, compromising the utilization of RuO 2 .…”

Section: Ruomentioning

confidence: 99%

A review of electrode materials for electrochemical supercapacitors

2012

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=72117dd4-3024-4aa6-be53-472cfb3e5a2a http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=72117dd4-3024-4aa6-be53-472cfb3e5a2a In this critical review, metal oxides-based materials for electrochemical supercapacitor (ES) electrodes are reviewed in detail together with a brief review of carbon materials and conducting polymers. Their advantages, disadvantages, and performance in ES electrodes are discussed through extensive analysis of the literature, and new trends in material development are also reviewed. Two important future research directions are indicated and summarized, based on results published in the literature: the development of composite and nanostructured ES materials to overcome the major challenge posed by the low energy density of ES (476 references).

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Section: Ruomentioning

confidence: 99%

A review of electrode materials for electrochemical supercapacitors

2012

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“…The high cost of ruthenium has limited the utilization of RuO 2 in commercial devices and several strategies have been pursued to reduce costs through the formation of mixed metal oxides of RuO 2 (Ru 1-x M x O 2 ), or composites of RuO 2 with conducting polymers, carbon nanotubes, or high surface area carbon [179,180,[186][187][188][189][190][191][192][193][194]. The formation of RuO 2 composites has been shown to enhance the electronic conductivity of the material and improves the utilization of RuO 2 [191][192][193][194].…”

Section: Transition Metal Oxidesmentioning

confidence: 99%

“…The formation of RuO 2 composites has been shown to enhance the electronic conductivity of the material and improves the utilization of RuO 2 [191][192][193][194]. A symmetric pseudocapacitor prepared from RuO 2 deposited onto PEDOT in an acidic electrolyte delivered a specific capacitance of 420 F g −1 (based on RuO 2 /PEDOT composite mass) and about 930 F g −1 (based on the active mass of RuO 2 only), which corresponds to an energy density of 27.5 Wh kg −1 over the potential range of 0-1.0 V [190].…”

Section: Transition Metal Oxidesmentioning

confidence: 99%

General Properties of Electrochemical Capacitors

et al. 2013

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“…However, due to the fast deposition, it is difficult to achieve uniform and defect-free coatings when scaling down to a few nanometers. Several groups have used CVD to synthesize CNT-metal oxide hybrids with SnO 2 [200] and RuO 2 [201]. Kuang et al deposited acid-treated MWCNTs on a Si waver and heated them to 550 °C in a SnH 4 -containing N 2 atmosphere [200].…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

“…Similar to core/shell heterostructures like MOS/CdS, CNT/MOS hybrids have shown improved photoluminescent quantum efficiencies and enhanced gas-sensing properties including reduced response and recovery times [163,222]. So far, CNT/SnO 2 has been tested for detection of CO [172], NO 2 [201,203], NH 3 [223], formaldehyde [224], and ethanol [225]. Wei et al used a sol-gel process to coat pristine SWCNTs with SnO 2 and investigated the gassensing performance for NO 2 at room temperature [165].…”

Section: Electrocatalysismentioning

confidence: 99%