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초록
Recycling of bio-waste sources for synthesis of functional electrode materials is an eco-friendly and sustainable approach to realize next-generation energy-storage systems. In this study, we present a fabrication method of Fe/C composite microfibers derived from electrospinning of hemoglobin blood protein, and subsequent calcination, and investigate its functionality as an oxygen electrode catalyst for Li-O-2 batteries. We elucidate the thermal decomposition behavior of raw hemoglobin protein and structural evolution after calcination at different temperatures. We successfully fabricated Fe/C composite microfibers with a uniform and flattened shape by electrospinning of a hemoglobin precursor and thermal treatment. Finally, we demonstrated that Li-O-2 cells in which the Fe/C composite microfiber catalyst was incorporated in the oxygen electrodes exhibited improved electrochemical performance compared to a pristine reference cell without the catalyst.
키워드
- 제목
- Iron/carbon composite microfiber catalyst derived from hemoglobin blood protein for lithium-oxygen batteries
- 저자
- Lee, Jun-Seo; Kim, Hyun-Soo; Ryu, Won-Hee
- 발행일
- 2019-02
- 유형
- Article
- 권
- 466
- 페이지
- 562 ~ 567