1. Synthesis of CoO/Ni Composite Powders for Molten Carbonate Fuel Cells
- Author
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Takehisa Fukui, Makio Naito, Hajime Okawa, Toyokazu Yokoyama, and Tadashi Hotta
- Subjects
inorganic chemicals ,Materials science ,Nickel oxide ,Inorganic chemistry ,Non-blocking I/O ,Composite number ,Oxide ,chemistry.chemical_element ,chemistry.chemical_compound ,Nickel ,chemistry ,Materials Chemistry ,Ceramics and Composites ,Carbonate ,Cobalt ,Cobalt oxide - Abstract
CoO/Ni composite particles were prepared by the advanced mechanical-coating method called Mechanofusion™. These composite particles were composed of nickel particles uniformly covered with fine CoO particles. A new cathode structure for molten carbonate fuel cells (MCFCs), where the NiO core was coated with an outer layer of lithiated cobalt and nickel solid-solution oxide (Li(Co,Ni) oxide), was formed by oxidation and lithiation using these CoO/Ni composite particles. The solubility of nickel in this Li(Co,Ni) oxide layer into carbonate melt decreased to two-thirds of that of NiO when used as a cathode for MCFCs.
- Published
- 2001