Preparation of Manganese Thin Film in Room-Temperature Butylmethylpyrrolidinium Bis(trifluoromethylsulfony)imide Ionic Liquid and Its Application for Supercapacitors
- 1 January 2007
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 10 (1), A9-B5
- https://doi.org/10.1149/1.2388243
Abstract
Surface oxidation of Pt cathode of proton exchange membrane (PEM) fuel cells at different relative humidities (RHs) was studied using cyclic voltammetry. The degree of platinum oxidation increased significantly with an increase in RH from 20% to 72%. Holding the cathode at high potentials and exposing it to air instead of resulted in the formation of more platinum oxides. At 20% RH, , and 100°C, both water and oxygen equally contribute to platinum oxidation; at 100% RH, , and 100°C, water produces more than 70% of the platinum oxidation while 30% forms from oxygen.Keywords
This publication has 21 references indexed in Scilit:
- Synthesis and electrochemical characterization of amorphous MnO2 electrochemical capacitor electrode materialJournal of Power Sources, 2004
- Electrochemical Capacitance in Manganese Thin Films with Chevron MicrostructureElectrochemical and Solid-State Letters, 2002
- Nanocrystalline Manganese Oxides for Electrochemical Capacitors with Neutral ElectrolytesJournal of the Electrochemical Society, 2002
- Ideal capacitive behavior of hydrous manganese oxide prepared by anodic depositionElectrochemistry Communications, 2001
- Novel Electrode Materials for Thin-Film Ultracapacitors: Comparison of Electrochemical Properties of Sol-Gel-Derived and Electrodeposited Manganese DioxideJournal of the Electrochemical Society, 2000
- Supercapacitor Behavior with KCl ElectrolyteJournal of Solid State Chemistry, 1999
- Materials for Electrochemical Capacitors: Theoretical and Experimental ConstraintsJournal of the Electrochemical Society, 1996
- Hydrous Ruthenium Oxide as an Electrode Material for Electrochemical CapacitorsJournal of the Electrochemical Society, 1995
- A New Charge Storage Mechanism for Electrochemical CapacitorsJournal of the Electrochemical Society, 1995
- Transition from “Supercapacitor” to “Battery” Behavior in Electrochemical Energy StorageJournal of the Electrochemical Society, 1991