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Improving the utilization of ruthenium oxide within thick carbon–ruthenium oxide composites by annealing and anodizing for electrochemical supercapacitors
Chi-Chang Hu,Chen-Ching Wang +1 more
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TLDR
In this article, the effects of annealing in air and anodizing on the capacitive behavior of carbon-ruthenium composites fabricated by wet impregnation were investigated in 0.1 M H2SO4 by cyclic voltammetry and chronopotentiometry.About:
This article is published in Electrochemistry Communications.The article was published on 2002-07-01. It has received 113 citations till now. The article focuses on the topics: Ruthenium oxide & Anodizing.read more
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Materials for electrochemical capacitors
TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.
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A review of electrode materials for electrochemical supercapacitors
TL;DR: 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.
Journal ArticleDOI
Advanced Materials for Energy Storage
TL;DR: This Review introduces several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage, and the current status of high-performance hydrogen storage materials for on-board applications and electrochemicals for lithium-ion batteries and supercapacitors.
Ultracapacitors: Why, How, and Where is the Technology
TL;DR: In this paper, the authors compared the power density characteristics of ultracapacitors and batteries with respect to the same charge/discharge efficiency, and showed that the battery can achieve energy densities of 10 Wh/kg or higher with a power density of 1.2 kW/kg.
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Supercapacitors Prepared from Melamine-Based Carbon
TL;DR: The electrochemical performance of supercapacitors made of a carbon material with a moderate amount of nitrogen atoms embedded in a carbon matrix is reported in this paper, where Melamine was polymerized in the interlayer spaces of mica and afterward carbonized at various temperatures between 650 and 1000 °C.
References
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Journal ArticleDOI
Ultracapacitors: why, how, and where is the technology
TL;DR: In this article, the authors compared the power density characteristics of ultracapacitors and batteries with respect to the same charge/discharge efficiency and showed that the battery can achieve energy densities of 10 Wh/kg or higher with a power density of 1-2 kW/kg.
Ultracapacitors: Why, How, and Where is the Technology
TL;DR: In this paper, the authors compared the power density characteristics of ultracapacitors and batteries with respect to the same charge/discharge efficiency, and showed that the battery can achieve energy densities of 10 Wh/kg or higher with a power density of 1.2 kW/kg.
Journal ArticleDOI
Hydrous Ruthenium Oxide as an Electrode Material for Electrochemical Capacitors
TL;DR: In this article, the crystalline structure and the electrochemical properties of the hydrous ruthenium oxide powder have been studied as a function of the annealing temperature.
Journal ArticleDOI
Physical electrochemistry of ceramic oxides
TL;DR: In this article, a survey of the industrial needs and demands for ceramic oxide electrodes is presented, along with an analysis of the factors responsible for the electrocatalytic activity of oxides, providing a clue to the understanding of a generalized mechanism of electrode reaction which can be established for most anodic and cathodic electrolytic processes.
Journal ArticleDOI
Ideal capacitive behavior of hydrous manganese oxide prepared by anodic deposition
Chi-Chang Hu,Ta-Wang Tsou +1 more
TL;DR: Amorphous hydrous manganese oxide (a-MnO2·nH2O) was anodically deposited onto a graphite substrate from a MnSO4·5H 2O solution with pH of 6.4.