ISIS Neutron and Muon Source Data Journal

Dynamics of a New and High Performance Proton Conductor ZnADP.3H2O

Abstract: We propose to measure the dynamics in ZnADP¿3H2O, a new and high performance material that exhibits proton conductivity as high as Nafion membranes, which is the best commercial proton conductor. We have already performed quasi-elastic measurements on AGNES (DE=100ueV, at JRR-3) and HFBS (DE=1ueV, at NIST), with results that indicate the existence of two relaxations with time scales of 5 ps and 100 ps. The former, which may be related to H2O molecules and NH4+ ions, is quite unusual in the sense that it appears in the wide temperature range between 100 and 300 K and the activation energy is very small at low temperatures. The 5ps relaxation is still unclear. The purpose of the proposed experiment on IRIS is to access the intermediate time-range between AGNES and HFBS and to elucidate the mechanism of the proton conductivity of ZnADP¿3H2O. We expect some tunneling motions as well.

Public release date: 05 August 2014

Principal Investigator: Professor Osamu Yamamuro
Experimenter: Dr Victoria Garcia Sakai
Experimenter: Dr Atsushi Nagoe
Experimenter: Dr Maiko Kofu
Experimenter: Mr Masaaki Sadakiyo
Experimenter: Mr Kota Sato

DOI: 10.5286/ISIS.E.24086417

ISIS Experiment Number: RB1120198

Part Number: 1 - IRIS

Date of Experiment: 28 July 2011

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Osamu Yamamuro et al; (2011): Dynamics of a New and High Performance Proton Conductor ZnADP.3H2O, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.24086417