One of the greatest challenges for using microbial fuel cells (MFCs) for wastewater treatment is creating a scalable architecture that provides large surface areas for oxygen reduction at the cathode and bacteria growth on the anode. We demonstrate here a scalable cathode concept by showing that a tubular ultrafiltration membrane with a conductive graphite coating and a nonprecious metal cataly...

A high advancement has been achieved in the design of proton exchange membrane fuel cells (PEMFCs) since development thin-film catalyst layers (CLs). However, progress slowed down last decade due to difficulty reducing Pt loading, especially at cathode side, while preserving stack performance. This situation poses a barrier widespread commercialization cell vehicles, where performance and durab...

A hybrid strategy for solar water splitting is exploited here based on a dye-sensitized photoelectrosynthesis cell (DSPEC) with a mesoporous SnO2/TiO2 core/shell nanostructured electrode derivatized with a surface-bound Ru(II) polypyridyl-based chromophore-catalyst assembly. The assembly, [(4,4'-(PO3H2)2bpy)2Ru(4-Mebpy-4'-bimpy)Ru(tpy)(OH2)](4+) ([Ru(a) (II)-Ru(b) (II)-OH2](4+), combines both a...

The use of a dual-layer cathode catalyst layer improves the performance proton exchange membrane fuel cells. To generate single and layers between gas diffusion media electrolyte, two commercial carbon-supported platinum catalysts with either high microporosity carbon (Ketjen Black EC-300J) or low porosity (XC-72 Vulcan carbon) are utilized. We discovered that boost maximum power cells regardle...

we report a pd-co (3:1)/graphene oxide (pd3co /go) catalyst through a one-step strategy. go is synthesized from graphite electrodes using ionic liquid-assisted electrochemical exfoliation. controllable go-supported pd3co electrocatalystis then was reduced by ethylene glycol as a stabilizing agent to prepare highly dispersed pdco nanoparticles on carbon graphene oxide to be used as oxygen reduct...