A self-humidifying membrane based on low-cost sulfonated poly (ether ether ketone) (SPEEK) hybrid with sulfated zirconia (SO4(2-)/ZrO2, SZ)-supported platinum catalyst (Pt-SZ catalyst) was investigated for fuel cell applications. The SZ particle, a solid-state superacid with hygroscopic and high proton conductivity properties, was employed as the catalyst support. The SPEEK/Pt-SZ self-humidifyi...

Materials at the nanoscale show exciting and different properties. In this review, applications of nanomaterials for modifying main components microbial fuel cell (MFC) systems (i.e., electrodes membranes) their effect on performance are reviewed critically discussed. Carbon metal-based nanoparticles conductive polymers could contribute to growth thick anodic cathodic biofilms, leading enhanced...

ere fo ed in cture liquid uced rmea ed th ining chai siona ning memb s mu ellin derg to con pplic Article history: Received 27 February 2008 Received in revised form 22 May 2008 Accepted 24 May 2008 Available online 5 June 2008

Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in automotive, stationary, and portable applications. Perfluorosulfonic acid (PFSA) ionomers (for example, Nafion) have been the benchmark PEMs; however, several problems, including high gas permeability, low thermal stability, high production cost, and environmental incompatibility, limit the widespre...

Brush border membrane vesicles were isolated from rabbit renal cortex by Mg(++)-precipitation and differential centrifugation. (36)Cl(-) and [(3)H]glucose uptakes were simultaneously determined by a rapid filtration technique. Lysis of the vesicles with distilled water abolished 90-95% of the radioactivity on the filters, suggesting that nearly all of the (36)Cl(-) and [(3)H]glucose counts repr...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Minna Annala Name of the doctoral dissertation Electrically conductive polymeric materials through polymerization and compatibilization Publisher School of Chemical Technology Unit Department of Biotechnology and Chemical Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 116/2012 Field of research Po...

Sulfonated sPPFS-b-PBuA diblock and statistical copolymers based on 2,3,4,5,6-pentafluorostyrene PFS butyl acrylate BuA were elaborated for Proton Exchange Membrane Water Electrolyser (PEMWE) purposes. The block (BCP) synthetized by Nitroxide Mediated Polymerization NMP, a controlled radical polymerization technique that yields well-defined molar mass low dispersity material. These diblock-copo...