High-temperature fuel cells
- Resource Type
- Journal Article
- Authors
- Source
- CHEMTECH; (United States); 21:2
- Subject
- 30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE CERAMICS
ELECTRODES
MOLTEN CARBONATE FUEL CELLS
PERFORMANCE
SOLID ELECTROLYTE FUEL CELLS
ZIRCONIUM OXIDES
ANODES
DESIGN
ELECTROLYTES
LITHIUM CARBONATES
MATERIALS TESTING
PHASE STABILITY
POTASSIUM CARBONATES
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FUEL CELLS
HIGH-TEMPERATURE FUEL CELLS
LITHIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
STABILITY
TESTING
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS 300501* -- Fuel Cells-- Design & Development
300503 -- Fuel Cells-- Materials, Components, & Auxiliaries
300502 -- Fuel Cells-- Performance & Testing
360204 -- Ceramics, Cermets, & Refractories-- Physical Properties
- Language
- English
- ISSN
- 0009-2703
This paper reports that the high-temperature fuel cell promises high energy conversion efficiency without the need for external fuel processing. The solid oxide fuel cell (SOFC) is an all-solid-state fuel cell consisting of two porous ceramic electrodes separated by a dense oxide ion-conducting ceramic electrolyte. In the SOFC, fuel (hydrogen or carbon monoxide) and oxidant (oxygen) produce a dc current by combining electrochemically across the solid oxide electrolyte. Oxygen fed to the cathode accepts electrons from the external circuit to form oxide ions. The oxide ions are conducted through the electrolyte to the anode. At the anode, oxide ions combine with hydrogen (or CO) in the fuel to form water (or CO{sub 2}), liberating electrons. Electrons flow from the anode through the external circuit to the cathode.