High-power hybrid biofuel cells using layer-by-layer assembled glucose oxidase-coated metallic cotton fibers
- Authors
- Kwon, Cheong Hoon; Ko, Yongmin; Shin, Dongyeeb; Kwon, Minseong; Park, Jinho; Bae, Wan Ki; Lee, Seung Woo; Cho, Jinhan
- Issue Date
- 26-10월-2018
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE COMMUNICATIONS, v.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- NATURE COMMUNICATIONS
- Volume
- 9
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/72439
- DOI
- 10.1038/s41467-018-06994-5
- ISSN
- 2041-1723
- Abstract
- Electrical communication between an enzyme and an electrode is one of the most important factors in determining the performance of biofuel cells. Here, we introduce a glucose oxidase-coated metallic cotton fiber-based hybrid biofuel cell with efficient electrical communication between the anodic enzyme and the conductive support. Gold nanoparticles are layer-bylayer assembled with small organic linkers onto cotton fibers to form metallic cotton fibers with extremely high conductivity (>2.1x10(4) S cm(-1)), and are used as an enzyme-free cathode as well as a conductive support for the enzymatic anode. For preparation of the anode, the glucose oxidase is sequentially layer-by-layer-assembled with the same linkers onto the metallic cotton fibers. The resulting biofuel cells exhibit a remarkable power density of 3.7 mW cm(-2), significantly outperforming conventional biofuel cells. Our strategy to promote charge transfer through electrodes can provide an important tool to improve the performance of biofuel cells.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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