On the nanosecond proton dynamics in phosphoric acid–benzimidazole and phosphoric acid

On the nanosecond proton dynamics in phosphoric acid–benzimidazole and phosphoric acid–water mixtures

Published:2017 Issue:42 Volume:19 Page:28540-28554
ISSN:1463-9076
Container-title:Physical Chemistry Chemical Physics
language:en
Short-container-title:Phys. Chem. Chem. Phys.

Author:

Melchior Jan-Patrick¹²³^ORCID,Frick Bernhard⁴⁵⁶^ORCID

Affiliation:

1. Max Planck Institute for Solid State Research

2. 70569 Stuttgart

3. Germany

4. Institut Laue-Langevin

5. F-38042 Grenoble

6. France

Abstract

Combining ¹H-NMR, ¹⁷O-NMR, and high-resolution backscattering QENS hydrodynamic and structural proton transport in phosphoric acid is separated. The rate limiting steps for structural proton diffusion in mixtures of acid with Brønsted bases are found to occur below the nanosecond timescale.

Funder

Bundesministerium für Bildung und Forschung

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Link

http://pubs.rsc.org/en/content/articlepdf/2017/CP/C7CP04116K

Reference76 articles.

1. Transport in Proton Conductors for Fuel-Cell Applications: Simulations, Elementary Reactions, and Phenomenology

2. Proton conductivity in fused phosphoric acid; A 1H/31P PFG-NMR and QNS study

3. 779. Anomalous conduction in phosphoric acid hemihydrate, 2H3PO4,H2O