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    Electrocatalytic biofuel cell based on highly efficient metal-polymer nano-architectured bioelectrodes

    Year: 2017

    Journal: Nano Energy, Volume 39, SEP, page 601–607

    Authors: Mishra, Prashant; Lakshmi, G. B. V. S.; Mishra, Sachin; Avasthi, D. K.; Swart, Hendrik C.; Turner, Anthony P. F.; Mishra, Yogendra K.; Tiwari, Ashutosh

    Organizations: IAM (Sweden); DST (India); UFS (South Africa); Swedish Research Council [VR-2016-06014]

    Keywords: Biofuel cell; Bio-catalytic interfaces; Power bioelectronics; Nano-architectured bioelectrodes

    Bioenergy based devices are rapidly gaining significant research interest because of growing quest for future alternative energy resources, but most of the existing technologies suffer from poor electron transfer and slow mass transport, which hinder the fabrication of realistic high-power devices. Using a versatile strategy, here we have demonstrated the fabrication of nanoparticle-polymer framework based bioelectrocatalytic interfaces which facilitate a high mass-transport and thus offers the simple construction of advanced enzyme-based biofuel cells. It has been shown that a gold nanoparticle-structured polyaniline network can be effectively used as an electrical cabling interface providing efficient electron transfer for bio-anode and cathode. The resulting bioelectrodes are capable of excellent diffusional mass-transport and thus can easily facilitate the design of new and highly efficient membrane-less advanced bioenergy devices. The biofuel cell delivers a high-power density of about 2.5 times (i.e., 685 mu W cm(-2)) and open circuit voltage of 760 mV compared to conventional conducting polymer-based biofuel cells.
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