${session.getAttribute("locale")} 5 Proton dynamics in phosphotungstic acid impregnated mesoporous silica proton exchange membrane materials 100 °C. In this work quasielastic neutron scattering was used to study proton self-diffusion in mesoporous disordered and P6mm symmetry silica impregnated with two concentrations of phosphotungstic acid. Overall, the silica structure had a significantly greater effect on proton conduction and diffusion than phosphotungstic acid concentration, with higher proton conduction occurring for the P6mm symmetry silica samples. Quasielastic neutron scattering revealed two populations of protons diffusing through each sample, and that proton conduction is limited by the slower of these populations, which diffuse via a jump-diffusion mechanism. Whilst the fundamental jump-diffusion mechanism by which these slower protons moved was found to be similar for both silica supports and phosphotungstic acid concentrations, the faster diffusion occurring in P6mm structured silica arises from a lower residence time of protons moving between sites in the jump-diffusion model, suggesting a lower energy barrier.]]> Wed 30 May 2018 10:47:53 AEST ]]> Phosphoric acid functionalized pre-sintered meso-silica for high temperature proton exchange membrane fuel cells Wed 13 May 2015 14:23:41 AEST ]]> Correlation between proton conductivity, thermal stability and structural symmetries in novel HPW-meso-silica nanocomposite membranes and their performance in direct methanol fuel cells Tue 18 Aug 2015 19:52:39 AEST ]]> Ion-Exchange-Induced Selective Etching for the Synthesis of Amino-Functionalized Hollow Mesoporous Silica for Elevated-High-Temperature Fuel Cells Tue 13 Mar 2018 14:27:42 AEST ]]> Water uptake in the hydrophilic poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) solid-contact of all-solid-state polymeric ion-selective electrodes Tue 12 Jul 2016 10:21:56 AEST ]]> Role of electrocatalytic properties of infiltrated nanoparticles in the activity of cathodes of solid oxide fuel cells – A case study of infiltrated La0.8Sr0.2CoxMn1-xO3 (x=0, 0.5, and 1) on Pt electrode LSCM > LSM. The higher oxygen surface exchange rate as well as faster oxygen transportation kinetics of the B-site Co-rich perovskite oxides is responsible to the better catalytic activity of the infiltrated Pt cathodes.]]> Tue 12 Dec 2017 13:57:54 AEST ]]> Enhanced oxygen reduction at Pd catalytic nanoparticles dispersed onto heteropolytungstate-assembled poly(diallyldimethylammonium)-functionalized carbon nanotubes Thu 23 Jul 2015 11:25:37 AEST ]]> Interface formation and Mn segregation of directly assembled La0.8Sr0.2MnO3 cathode on Y2O3-ZrO2 and Gd2O3-CeO2 electrolytes of solid oxide fuel cells Thu 22 Nov 2018 09:47:27 AEST ]]> An Electrochemical Impedance Spectroscopy/Neutron Reflectometry Study of Water Uptake in the Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate)/Polymethyl Methacrylate-Polydecyl Methacrylate Copolymer Solid-Contact Ion-Selective Electrode Thu 20 Aug 2015 15:04:13 AEST ]]> Investigating HPA functionalized mesoporous silica materials for use as high temperature proton exchange membranes Thu 17 Nov 2016 14:15:39 AEST ]]> Stack performance of phosphotungstic acid functionalized mesoporous silica (HPW-meso-silica) nanocomposite high temperature proton exchange membrane fuel cells Fri 27 Nov 2015 11:56:28 AEST ]]> Nb and Pd co-doped La0.57Sr0.38Co0.19Fe0.665Nb0.095Pd0.05O3-δ as a stable, high performance electrode for barrier-layer-free Y2O3-ZrO2 electrolyte of solid oxide fuel cells Fri 22 Feb 2019 11:06:44 AEST ]]> Effect of Pd doping on the activity and stability of directly assembled La0.95Co0.19Fe0.76Pd0.05O3-δ cathodes of solid oxide fuel cells Fri 22 Feb 2019 10:31:43 AEST ]]> Gas phase electrochemical conversion of humidified CO2 to CO and H2 on proton-exchange and alkaline anion-exchange membrane fuel cell reactors Fri 22 Feb 2019 10:17:45 AEST ]]> Investigating HPA functionalized mesoporous silica materials for use as high temperature proton exchange membranes Fri 08 Apr 2016 09:34:02 AEST ]]> Materials for High-Temperature Fuel Cells Fri 07 Nov 2014 12:03:12 AEST ]]>