A direct internal reforming (DIR) reaction for a molten carbonate fuel cell (MCFC) is carried out using SiO2 supported catalysts, which are known to be a highly stable in catalytic reactions. The SiO2 supported Ni catalysts rapidly deactivate in DIR-MCFC. To elucidate the mechanism of the catalyst deactivation, various characteristic analyses (XRD, BET, H2-chemisorption, FT-IR, and SEM) of calcined and used catalysts are employed. The co-existence of H2O and K causes the formation of the non-active nickel oxide and silica hydrate resulting in the significant decrease of Ni dispersion and BET surface area.
Bibliographical noteFunding Information:
This work was conducted under the framework of research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy, Korea (MOTIE) of the Republic of Korea (No. 20164030201250).
© 2017 Elsevier B.V.
All Science Journal Classification (ASJC) codes
- Process Chemistry and Technology