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Nội dung
Research Progress Studies on Flexible Electrode batch and continuous Microbial Fuel Cell Presented by Bhanupriya Das Under the supervision of Prof Vimal Katiyar & Dr Anki Reddy Katha Dept.of Chemical Engineering, IIT Guwahati, Assam, India Prof.C.T.Wang National Ilan University,Yilan IIT Guwahati INTRODUCTION Microbial Fuel Cell: An electrochemical device that produces electricity by using microorganisms as catalyst to oxidize organic and inorganic matter IIT Guwahati MOTIVATION Biopolymer based Composite flexible electrode No work done so far Domestic wastewater Dual Chamber MFC treatment IIT Guwahati • IIT Guwahati Pending Investigation on the proton transport mechanism using Molecular Dynamics Method and validation with experimental results • • • In Progress Investigation on the electron transport mechanism using Ab-initio Molecular Dynamics Investigation on efect of crosslinking of PVA membranes in MFC Completed Investigation of specifc flow dimensionless parameters on enhancing the performance of the Continuous Microbial Fuel Cell • • • OBJECTIVES Development of bio-polymer based ion conductive membranes and flexible electrodes Investigation of the role of bio-based electrode developed by electrospinning on the performance of MFC Investigation of the role of bio based membrane on the performance of MFC HIGHLIGHTS No synthetic mediator used to transport electron No pretreatment of membranes and electrodes No catalyst in cathode IIT Guwahati WORK PLAN BATCH MODE DUAL CHAMBERED MICROBIAL FUEL CELL CASE ANODE MEMBRANE CATHODE I GRAPHITE FELT PVA GRAPHITE FELT II GRAPHITE FELT Nafon117 GRAPHITE FELT III GRAPHITE FELT CHITOSAN GRAPHITE FELT IV PLA/PANI NAFION 117 GRAPHITE FELT PREPARATION OF ANODE AND CATHODE ELECTRODES Procedure: 10% H202 Solution is used to pretreat the carbon felt electrodes for hours at 90 C after which it is left to dry in ambient conditions IIT Guwahati PRETREATMENT OF NAFION 117 MEMBRANE Step The membrane is treated in 5% H202 solution and heated for hr Step The membrane is treated in 0.5 M H2SO4 and heated for hr Step The membrane is washed using deionized water repeatedly Step The treated membrane is soaked in DI water for use IIT Guwahati PREPARATION OF FLEXIBLE ELECTRODE PLA BEADS Pani/PLA Flexible elctrode In-situ polymerisation of PAni Chloroform Electrospinning unit benzenoid quinoid diimine diamine IIT Guwahati PREPARATION OF PVA MEMBRANE PVA Powder 300ml Stirring Viscous 650rpm,85 C solution epoxy linkage Deionized Water Crosslinking PVA Membrane • • • Cast on Teflon plates Dry in room temperature Oven dry at 120 C IIT Guwahati