title: Three-dimensional graphene-carbon nanotube hybrid for high-performance enzymatic biofuel cells.
abstract: Enzymatic biofuel cells (EBFCs) 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 attain the theoretical limit of open circuit voltage (∼1.2 V) and a high power density ever reported (2.27 ± 0.11 mW cm(-2)).
authors.affiliation: Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore.
authors.forename: Kenath Priyanka
authors.initials: KP
authors.lastname: Prasad
authors.forename: Yun
authors.initials: Y
authors.lastname: Chen
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
mesh_terms: D001674:Bioelectric Energy Sources; D015374:Biosensing Techniques / Q000295:instrumentation*; D011211:Electric Power Supplies; D005947:Glucose / Q000737:chemistry; D005949:Glucose Oxidase / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D042845:Laccase / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry
chemical_list: D037742:Nanotubes, Carbon; D006108:Graphite; D005949:Glucose Oxidase; D042845:Laccase; D005947:Glucose; D010100:Oxygen