Li+ distribution into V2O5 films resulting from electrochemical intercalation reactions
نویسندگان
چکیده
منابع مشابه
Effect of manganese doping on Li-ion intercalation properties of V2O5 films
added directly during sol preparation. Stable and homogeneous Mn-doped vanadium oxide sol was obtained and the films were fabricated by dip-coating, drying at ambient, and then annealing at 250 C in air for 3 h. X-Ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and electrochemical analyses have been employed to characterize and analyze the crystalan...
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Thin films of orthorhombic V2O5 have been prepared by sol electrophoretic deposition (EPD) followed by post-treatment at 500 ◦C. Their electrochemical and optical performances have been investigated for possible applications in electrochemical/electrochromic devices. Li+-intercalation properties of the films have been explored in two voltage ranges: 0.4 to −1.1 V and 0.4 to −1.6 V versus Ag/Ag+...
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Pseudocapacitance is commonly associated with surface or near-surface reversible redox reactions, as observed with RuO2·xH2O in an acidic electrolyte. However, we recently demonstrated that a pseudocapacitive mechanism occurs when lithium ions are inserted into mesoporous and nanocrystal films of orthorhombic Nb2O5 (T-Nb2O5; refs 1,2). Here, we quantify the kinetics of charge storage in T-Nb2O5...
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© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 8103 wileyonlinelibrary.com High performance cathodes, including metal oxides,[11–14] phosphates,[15–18] hexacyanometalates,[19–21] sulfur,[22,23] metal sulfides,[24,25] and organic materials,[26–28] have been reported, and porous carbonaceous materials and metallic Sb and Sn anodes also show high capacity and long cycling stability.[29–34] In c...
متن کاملFe-containing CeVO4 films as Li intercalation transparent counter-electrodes
Iron containing CeVO4 films were prepared using the sol–gel method. The crystalline structure of powders and films with Fe/Ce/V ratios of 0.1:1:1, 0.3:1:1 and 0.5:1:1 were investigated by X-ray diffraction (XRD) and infrared (IR) spectroscopy. XRD revealed the predominance of a CeVO4-W (wakefieldite) crystalline phase with a small amount of monoclinic CeVO4, CeO2 and Fe2O3. Ex situ IR absorbanc...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2008
ISSN: 0103-5053
DOI: 10.1590/s0103-50532008000400009