New reagents for coal desulfurization. Final technical report, September 1, 1990--August 31, 1991

Abstract

Screening of new reagents and reactions for pre-combustion desulfurization of Illinois coal was the goal of this project. In this exploratory study we examined modifications of mild desulfurization reactions, found to work with model organosulfur compounds, to improve sulfur removal and reduce reagent cost. Reagent screening and development reactions utilized substituted thiophenes plus aryl and alkyl sulfides as the initial models for organic sulfur compounds in coal. Organosulfur compounds in solvent extracts of Illinois coals were used as second generation target compounds. Transition metal salts reduced with NaBH. in aqueous ethanol converted dibenzo

Probing the Structure of Operating Fuel Cell Cathode Catalysts using XAS

“…40% Pt/C, 60% Pt/C, 40% PtCo(3:1 atomic ratio)/C and 10% Pd/C were prepared using methods that have previously been described (17)(18)(19). Briefly the carbon is slurried in weakly basic water before addition of the metal salts.…”