Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 5, Pages 3387-3393Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am405432b
Keywords
3D graphene; carbon nanotube; enzymatic biofuel cell; green energy; nanomaterials
Funding
- SERC Grant from the Agency for Science, Technology and Research (A*STAR, Singapore)
- AcRF grant from Ministry of Eduction (Singapore) [MOE2011-T2-2-010]
- NNSF of China [61328401]
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Enzymatic biofuel cells (EBECs) are promising renewable and implantable power sources. However, their power output is often limited by inefficient electron transfer between the enzyme molecules and the electrodes, hindered mass transport, low conductivity, and small active surface area of the electrodes. To tackle these issues, we herein demonstrated a novel EBFC equipped with enzyme-functionalized 3D graphene-single walled carbon nanotubes (SWCNTs) hybrid electrodes using the naturally abundant glucose as the fuel and oxygen as the oxidizer. Such EBFCs, with high stability, can nearly circuit voltage (similar to 1.2 V) and a high power density ever reported (2.27 +/- 0.11 mW cm(-2)).
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