3 years ago

Enhancing Catalytic Activity of Bioanode for Glucose Biofuel Cell by Compressing Enzyme, Mediator and Carbon Support through Centrifugation

Enhancing Catalytic Activity of Bioanode for Glucose Biofuel Cell by Compressing Enzyme, Mediator and Carbon Support through Centrifugation
Hirotaka Sato, Desmond Chun Long Tan
In this study, the fabrication of a graphene-based bioanode utilizing ferrocenemethanol as mediator and glucose oxidase as enzyme catalyst through centrifugation was demonstrated. The enhanced in catalytic activity for glucose oxidation was achieved via centrifuge compressing respective components within the mixture. The glucose/O2 biofuel cell (GBFC) was assembled by having the bioanode integrated with Pt wire as cathode. The GBFC produced maximum power density and open circuit voltage of approximately 70 μW cm−2 and 0.38 V. Graphene-based bioanode through centrifugation was synthesized as catalyst for glucose oxidation. The centrifugal force increased the interaction of the enzymes, redox mediator and supporting substrate, enhancing catalytic activity to a greater extent than mechanical compression.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201702100

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