Carbon Resistant Electrode for Direct Utilization of Hydrocarbon Fuels in Elevated Temperature Solid State Electrochemical Systems

Date

2019-07-07

Journal Title

Journal ISSN

Volume Title

Publisher

49th International Conference on Environmental Systems

Abstract

Direct utilization of hydrocarbon fuels in elevated temperature solid state electrochemical systems offers potential for improvement in electrical performance, better thermal management in the cell and stack as well as use of simpler balance of plant. Above systems, however, remain prone to carbon deposition in the fuel electrode resulting in structural and electrical performance degradation. We present our research findings on high entropy alloys (HEA) which have demonstrated carbon-free operation in the presence of gaseous and liquid hydrocarbons. Compared to Ni based conventional electrode material that showed extensive deposition of filamentary carbon and pulverization of nickel granular structure, HEA showed resistance to carbon formation. Research findings based on thermochemical models and implications of carbon-free operation for NASA specific missions will be highlighted for power generation, electrolysis and in-situ resource utilization.

Description

Boxun Hu, University of Connecticut, USA
Seraphim Belko, University of Connecticut, USA
Junsung Hong, University of Connecticut, USA
Ashish Aphale, University of Connecticut, USA
Michael Reisert, University of Connecticut, USA
Rajesh Kumar, University of Connecticut, USA
Avinash Dongare, University of Connecticut, USA
Prabhakar Singh, University of Connecticut, USA
ICES308: Advanced Technologies for In-Situ Resource Utilization
The 49th International Conference on Environmental Systems as held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.

Keywords

Power generation, Solid state electrochemical systems, Hydrocarbon fuel, Electrolysis, Durability

Citation