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Document Type : Latin Dissertation
Language of Document : English
Record Number : 149247
Doc. No : ET21039
Main Entry : Anne Elizabeth Fischer
Title Proper : DEGRADATION MECHANISMS OF CARBON-BASED ELECTROCATALYST SUPPORT MATERIALS AND DEVELOPMENT OF AN ADVANCED SUPPORT BASED ON ELECTRICALLY CONDUCTING DIAMOND
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : In this dissertation, the degradation mechanisms of sp2-bonded carbonelectrocatalyst supports were studied under potential and temperature conditions relevantto the polymer electrolyte membrane fuel cell (PEMFC). In addition, an alternativesupport was fabricated in two forms: electrically conducting diamond powder and paperto overcome current material stability issues in the PEMFC.Two structurally well-characterized sp2-bonded carbon powders, graphite(structurally well-ordered) and glassy carbon (GC, structurally disordered) were studiedunder potentiostatic polarization from 1.0 to 1.6 V vs. AgIAgC1 at 25, 50, and 80 "C.Characterization of the surface oxidation and microstructural changes (i.e., increase in theexposed edge plane density) provided evidence for the so-called orderldisordermechanism where structurally disordered carbons corrode more severely because of.
Subject : Electericl tess
: برق
electronic file name : TL44187.pdf
Title and statement of responsibility and : DEGRADATION MECHANISMS OF CARBON-BASED ELECTROCATALYST SUPPORT MATERIALS AND DEVELOPMENT OF AN ADVANCED SUPPORT BASED ON ELECTRICALLY CONDUCTING DIAMOND [Thesis]
 
 
 
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