Waste-to-hydrogen processes are a way to produce hydrogen from waste and reduce the amount of landfill/incineration of wastes simultaneously through the gasification of waste. The water-gas shift (WGS) reaction is a key step in this waste-to-hydrogen process by removing the CO and producing additional H2. A nanofiber-structured CoFe2O4 catalyst was synthesized by the electrospinning method, and the catalytic performance in WGS using waste-derived synthesis gas was compared with that of catalysts prepared by sol-gel, hydrothermal, and co-precipitation methods. The CoFe2O4 catalyst synthesized by the electrospinning method showed a clear nanofiber structure and revealed a superior redox property. This superior redox property, which has a large relation with the high oxygen storage capacity of the catalyst, induced the formation of an active phase (Co0 and Fe3O4) in CoFe2O4. As a result, the nanofiber structured oxygen defective CoFe2O4-x prepared by the electrospinning method showed the best catalytic activity in this study.
|Number of pages||9|
|Journal||International Journal of Hydrogen Energy|
|Publication status||Published - 2022 Aug 22|
Bibliographical noteFunding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2B5B01002346 ). This research was also supported by the Mid-career Researcher Program ( NRF-2020R1A2C1007847 ) through the National Research Foundation of Korea , funded by the Korean government Ministry of Education .
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology