Fuel Cell Electrode Characterization Using Neutron Scattering.
Olaf HoldererMarcelo CarmoMeital ShviroWerner LehnertYohei NodaSatoshi KoizumiMarie-Sousai AppavouMarina AppelHenrich FrielinghausPublished in: Materials (Basel, Switzerland) (2020)
Electrochemical energy conversion and storage is key for the use of regenerative energies at large scale. A thorough understanding of the individual components, such as the ion conducting membrane and the electrode layers, can be obtained with scattering techniques on atomic to molecular length scales. The largely heterogeneous electrode layers of High-Temperature Polymer Electrolyte Fuel Cells are studied in this work with small- and wide-angle neutron scattering at the same time with the iMATERIA diffractometer at the spallation neutron source at J-PARC, opening a view on structural properties on atomic to mesoscopic length scales. Recent results on the proton mobility from the same samples measured with backscattering spectroscopy are put into relation with the structural findings.
Keyphrases
- solid state
- high temperature
- carbon nanotubes
- cell therapy
- induced apoptosis
- high resolution
- stem cells
- ionic liquid
- mesenchymal stem cells
- single molecule
- single cell
- gold nanoparticles
- cell cycle arrest
- solar cells
- monte carlo
- density functional theory
- tissue engineering
- oxidative stress
- bone marrow
- molecular dynamics
- electron transfer
- mass spectrometry
- pi k akt