title: Implication of composite electrode on the functioning of photo-bioelectrocatalytic fuel cell operated with heterotrophic-anoxygenic condition.
abstract: Electrode materials play a vital role in biofilm formation and electron conduction for efficient functioning of fuel cells. In the present study, graphite polymer composite electrode (GPF) was evaluated as anode for photo-bioelectrocatalytic fuel cell (PhFC; biophotovoltaic system) and compared with much studied graphite electrode (Gc) with photosynthetic bacteria as biocatalyst under anoxygenic condition. The electrogenic activity noticed in GPF (584mV; 2.67mA) was slightly lower than Gc (604mV; 2.92mA; OL2/HRT2). Consequently, COD removal observed by GPF (87.3%) was lower than Gc (91.8%). The increase in bacterial chlorophyll pigment showed a positive influence on electrogenic activity for both the electrodes. The polarization resistance (OL2 and HRT2 condition) was significantly higher for GPF (330Ω) as compared to Gc (110Ω). It is interesting to note that the performance of GPF is slightly lower than Gc based PhFC. The findings have opened avenues for composite materials for PhFC.
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
authors: B
authors: B
authors: Navaneeth
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
authors: R
authors: R
authors: Hari Prasad
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
authors: P
authors: P
authors: Chiranjeevi
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
authors: Rashmi
authors: R
authors: Chandra
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
authors: Omprakesh
authors: O
authors: Sarkar
authors: Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Chemical Engineering, Indian Institute of Technology Delhi, Delhi 110016, India.
authors: Anil
authors: A
authors: Verma
authors: Department of Environmental and Industrial Biotechnology, The Energy and Resources Institute (TERI), New Delhi 110003, India.
authors: Sanjukta
authors: S
authors: Subudhi
authors: Department of Environmental and Industrial Biotechnology, The Energy and Resources Institute (TERI), New Delhi 110003, India.
authors: Banwari
authors: B
authors: Lal
authors: Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India. Electronic address: vmohan_s@yahoo.com.
authors: S
authors: S
authors: Venkata Mohan
mesh_terms: D001419:Bacteria / Q000378:metabolism; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D056804:Biofuels; D018533:Biomass; D002384:Catalysis; D002734:Chlorophyll / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D006108:Graphite / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry*; D010788:Photosynthesis; D010858:Pigmentation; D018508:Water Purification
chemical_list: D056804:Biofuels; D002734:Chlorophyll; D006108:Graphite; D010100:Oxygen
keywords: Bacterial chlorophyll; Bioelectricity; Biophotovoltaic cell; Phenol formaldehyde; Photosynthetic bacteria