3D flower-like FeWO4/CeO(2)hierarchical architectures on rGO for durable and high-performance microalgae biophotovoltaic fuel fells
Document Type
Article
Publication Date
11-1-2020
Abstract
A facile chemical reduction approach is adopted for the synthesis of iron tungstate (FeWO4)/ceria (CeO2)-decorated reduced graphene oxide (rGO) nanocomposite. Surface morphological studies of rGO/FeWO4/CeO(2)composite reveal the formation of hierarchical FeWO(4)flower-like microstructures on rGO sheets, in which the CeO(2)nanoparticles are decorated over the FeWO(4)microstructures. The distinct anodic peaks observed for the cyclic voltammograms of studied electrodes under light/dark regimes validate the electroactive proteins present in the microalgae. With the cumulative endeavors of three-dimensional FeWO(4)microstructures, phase effect between rGO sheet and FeWO4/CeO2, highly exposed surface area, and light harvesting property of CeO(2)nanoparticles, the relevant rGO/FeWO4/CeO(2)nanocomposite demonstrates high power and stable biophotovoltaic energy generation compared with those of previous reports. Thus, these findings construct a distinct horizon to tailor a ternary nanocomposite with high electrochemical activity for the construction of cost-efficient and environmentally benign fuel cells.
Keywords
Microflower, Ternary nanocomposite, Microalgae, Biophotovoltaic fuel cell, Green energy
Divisions
InstituteofBiologicalSciences,PHYSICS,ocean
Funders
Council of Scientific and Industrial Research (CSIR), New Delhi-Major Project (01(2997)19/EMR-II),Deanship of Scientific Research at King Khalid University (G.R.P.205-40),Newton Prize Grant 2017 (IF008-2018),Higher Institution Centre of Excellence (HICoE) Fund, Ministry of Education, Malaysia: Air, ocean and land interaction (IOES-2014F)
Publication Title
Applied Biochemistry and Biotechnology
Volume
192
Issue
3
Publisher
Springer
Publisher Location
ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES