Composite electrodes for advanced electrochemical applications. Quarterly report for the period October 1, - December 31, 1999

Kovach, Chris

North Coast Crystals, Inc. (United States)

关键词: Copper;    Titanium;    Electrochemical Cells;    Anodes;    Industry;   

DOI  :  10.2172/759352
RP-ID  :  DOE/GO/10320-5
RP-ID  :  FG36-98GO10320
RP-ID  :  759352

美国|英语

来源: UNT Digital Library

【 摘 要 】

The electrochemical industry is one of the most highly energy intensive industries today. However, there have been no significant advances in the electrodes that these industries use. The dimensionally stable anode (DSA), which ELTECH introduced under a license agreement, has been the industry standard for the past twenty-five years. But, DSAs are nearing the end of their technological prevalence. The principal problems with DSAs include high capital and operating costs, and the proprietary nature of the technology. In addition, DSAs experience problems that include: contamination of the process solution by anode materials, failure when the electrocatalytic coating peels from underattack, generally low anode performance due to inherent limitations in operating current density, and short anode lifetime because of corrosion. The proposed innovation combines the low electrical resistance of copper with the corrosion resistance of electrically conductive diamond to achieve energy efficient, long-lifetime electrodes for electrochemistry. The proposed work will ultimately develop a composite electrode that consists of a copper substrate, a conductive diamond coating, and a catalytic precious metal coating. The scope of the current work includes preparation, testing, and evaluation of diamond-coated titanium electrodes.