Sucrose pyrolysis assembling carbon nanotubes on graphite felt using for vanadium redox flow battery positive electrode
نویسندگان
چکیده
منابع مشابه
Investigation of Hydroxylated Carbon Felt Electrode in Vanadium Redox Flow Battery by Using Optimized Supporting Electrolyte
Traditional vanadium batteries use pure sulfuric acid as electrolyte, but H2SO4 does not absorb enough vanadium ions to make the electrolyte an efficient energy source. This study investigates the effect of hydroxylation process on electrochemical and operational properties of carbon felt electrode in VOSO4 solution with an optimized supporting electrolyte (a mixture of six parts HCl and 2.5 pa...
متن کاملEnhanced performance of a Bi - modified graphite felt as the positive electrode of a vanadium redox flow battery
Graphite felt modified with nanodispersed bismuth was studied as electrode in the positive half-cell of a vanadium redox flow battery (VRFB). The felt was easily modified by immersion in a Bi2O3 solution followed by thermal reduction at 450°C in air. Despite the low metal content (1 at. %), the Bi-modified felt showed an excellent electrochemical performance (at 1 mVs) in terms of anodic and ca...
متن کاملThermally reduced graphite oxide as positive electrode in vanadium redox flow batteries
Two graphene-like materials, obtained by thermal exfoliation and reduction of a graphite oxide at 700 and 1000oC, were studied as active electrodes in the positive half-cell of a Vanadium Redox Flow Battery (VRFB). In particular, that obtained at 1000oC exhibited an outstanding electrochemical performance in terms of peak current densities (30.54 and 30.05 mAcm for the anodic and cathodic peaks...
متن کاملA new strategy for integrating abundant oxygen functional groups into carbon felt electrode for vanadium redox flow batteries
The effects of surface treatment combining corona discharge and hydrogen peroxide (H2O2) on the electrochemical performance of carbon felt electrodes for vanadium redox flow batteries (VRFBs) have been thoroughly investigated. A high concentration of oxygen functional groups has been successfully introduced onto the surface of the carbon felt electrodes by a specially designed surface treatment...
متن کاملGraphene‐Nanowall‐Decorated Carbon Felt with Excellent Electrochemical Activity Toward VO2 +/VO2+ Couple for All Vanadium Redox Flow Battery
3D graphene-nanowall-decorated carbon felts (CF) are synthesized via an in situ microwave plasma enhanced chemical vapor deposition method and used as positive electrode for vanadium redox flow battery (VRFB). The carbon fibers in CF are successfully wrapped by vertically grown graphene nanowalls, which not only increase the electrode specific area, but also expose a high density of sharp graph...
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ژورنال
عنوان ژورنال: Journal of Energy Chemistry
سال: 2018
ISSN: 2095-4956
DOI: 10.1016/j.jechem.2017.11.019