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Bacteria‐driven Single‐inlet Microfluidic Fuel Cell with Spiral Channel Configuration
Author(s) -
Arun Ravi Kumar,
Sikdar Nirupam,
Roy Debolina,
Chaudhuri Surabhi,
Chanda Nripen
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202102072
Subject(s) - microbial fuel cell , anode , cathode , microchannel , materials science , electrode , microfluidics , proton exchange membrane fuel cell , power density , optoelectronics , chemistry , nanotechnology , chemical engineering , fuel cells , power (physics) , engineering , physics , quantum mechanics
We present a single inlet, spiral‐shaped microfluidic microbial fuel cell (MFC) with porous Paper@Ni anode and Paper@C cathode for energy generation. In the MFC, the anode with a bacterial component is placed along the microchannel side to provide a larger electrode surface area, reduced internal resistance, and enhances mass transport of the 2 % glucose as a substrate for microbial redox reaction. The large electrode area induced by the spiral channel configuration and passive control of the boundary layer enhances the energy output from the fuel cell and eliminates the need for a two‐chambered system. The fuel cell utilizes bacteria Bacillus stratosphericus isolated from mangrove soil to generate bioenergy with an open‐circuit voltage of 0.3 V within 10 seconds. The fuel cell generates a maximum current density of 7 A m −2 and a power density of ∼ 150 mW m −2 .