Aqueous basic solutions: hydroxide solvation, structural diffusion, and comparison to the hydrated proton

D Marx, A Chandra, ME Tuckerman - Chemical reviews, 2010 - ACS Publications
Many hydrogen-bonded liquids, molecular solids, and lowdimensional systems support
anomalous diffusion mechanisms of topological charge defects created by the addition or …

Intermediate temperature proton conductors for PEM fuel cells based on phosphonic acid as protogenic group: A progress report

H Steininger, M Schuster, KD Kreuer… - Physical Chemistry …, 2007 - pubs.rsc.org
The melting behaviour and transport properties of straight chain alkanes mono-and
difunctionalized with phosphonic acid groups have been investigated as a function of their …

Metadynamics: a method to simulate rare events and reconstruct the free energy in biophysics, chemistry and material science

A Laio, FL Gervasio - Reports on Progress in Physics, 2008 - iopscience.iop.org
Metadynamics is a powerful algorithm that can be used both for reconstructing the free
energy and for accelerating rare events in systems described by complex Hamiltonians, at …

Efficient reconstruction of complex free energy landscapes by multiple walkers metadynamics

P Raiteri, A Laio, FL Gervasio, C Micheletti… - The journal of …, 2006 - ACS Publications
Recently, we have introduced a new method, metadynamics, which is able to sample rarely
occurring transitions and to reconstruct the free energy as a function of several variables …

Assessing the accuracy of metadynamics

A Laio, A Rodriguez-Fortea, FL Gervasio… - The journal of …, 2005 - ACS Publications
Metadynamics is a powerful technique that has been successfully exploited to explore the
multidimensional free energy surface of complex polyatomic systems and predict transition …

Mixed Grotthuss and vehicle transport mechanism in proton conducting polymers from ab initio molecular dynamics simulations

GA Luduena, TD Kühne, D Sebastiani - Chemistry of Materials, 2011 - ACS Publications
We elucidate the microscopic mechanism of long-range proton conduction in poly [vinyl
phosphonic acid](PVPA), a highly promising proton conducting polymer. Using a steered ab …

About the choice of the protogenic group in polymer electrolyte membranes: Ab initio modelling of sulfonic acid, phosphonic acid, and imidazole functionalized …

SJ Paddison, KD Kreuer, J Maier - Physical Chemistry Chemical …, 2006 - pubs.rsc.org
The possible use of sulfonic acid, phosphonic acid, or imidazole as the protogenic group in
polymer electrolyte membranes for fuel cells operating at intermediate temperature (T> 100° …

Alternatives toward proton conductive anhydrous membranes for fuel cells: Heterocyclic protogenic solvents comprising polymer electrolytes

SÜ Çelik, A Bozkurt, SS Hosseini - Progress in Polymer Science, 2012 - Elsevier
Fuel cells are gaining increasing attention as a clean and promising technology for energy
conversion. One of the key benefits of fuel cells compared to other methods is the direct …

Adaptively biased molecular dynamics for free energy calculations

V Babin, C Roland, C Sagui - The Journal of chemical physics, 2008 - pubs.aip.org
We present an adaptively biased molecular dynamics (ABMD) method for the computation of
the free energy surface of a reaction coordinate using nonequilibrium dynamics. The ABMD …

High-resolution solid-state NMR studies of poly (vinyl phosphonic acid) proton-conducting polymer: Molecular structure and proton dynamics

YJ Lee, B Bingöl, T Murakhtina… - The Journal of …, 2007 - ACS Publications
The structure and the local proton mobility of poly (vinyl phosphonic acid) were studied by
solid-state NMR under fast magic-angle spinning. At elevated temperatures, the signature of …