Cobalt Doped (Mn,Ti)- Oxides for Supercapacitors

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In this investigation, a (Mn,Ti)-oxide (Mn:Ti 65:35 wt%) was prepared using surfactant templating assisted sol-gel method. To prepare this nanocomposite, sol-A with Ti precursor and sol-B containing Mn precursor were separately prepared using the required precursor amounts in ethanol and 5 wt.% pluronic 123 surfactant. Gelation was accomplished by the addition of DI water and catalyzed by HCl. The gels were aged for 24 hrs, dried at 80oC for 12 hrs and calcined at 1000oC for 5 hrs. Additional gels were synthesized using isopropanol and acetic acid. These powdered electrode materials were analyzed by x-ray diffraction, which indicated the presence of a perovskite phase. Supercapacitors were fabricated and cyclic voltammetry measurements were performed to infer specific capacitance. Supercapacitor was also fabricated with cobalt doped (Mn,Ti)-oxide and its performance was evaluated.

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Journal: TechConnect Briefs
Volume: TechConnect Briefs 2019
Published: June 17, 2019
Pages: 163 - 166
Industry sector: Energy & Sustainability
Topics: Catalysis, Energy Storage
ISBN: 978-0-9988782-8-7