3D Flower-Like FeWO/CeO Hierarchical Architectures on rGO for Durable and High-Performance Microalgae Biophotovoltaic Fuel Cells.

A facile chemical reduction approach is adopted for the synthesis of iron tungstate (FeWO)/ceria (CeO)-decorated reduced graphene oxide (rGO) nanocomposite. Surface morphological studies of rGO/FeWO/CeO composite reveal the formation of hierarchical FeWO flower-like microstructures on rGO sheets, in which the CeO nanoparticles are decorated over the FeWO 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.