Developments in X-ray tomography characterization for electrochemical devices

TMM Heenan, C Tan, J Hack, DJL Brett, PR Shearing - Materials Today, 2019 - Elsevier
Over the last century, X-ray imaging instruments and their accompanying tomographic
reconstruction algorithms have developed considerably. With improved tomogram quality …

Interfacial processes in electrochemical energy systems

M Wang, Z Feng - Chemical Communications, 2021 - pubs.rsc.org
Electrochemical energy systems such as batteries, water electrolyzers, and fuel cells are
considered as promising and sustainable energy storage and conversion devices due to …

Design of next-generation ceramic fuel cells and real-time characterization with synchrotron X-ray diffraction computed tomography

T Li, TMM Heenan, MF Rabuni, B Wang… - Nature …, 2019 - nature.com
Ceramic fuel cells offer a clean and efficient means of producing electricity through a variety
of fuels. However, miniaturization of cell dimensions for portable device application remains …

The application of hierarchical structures in energy devices: new insights into the design of solid oxide fuel cells with enhanced mass transport

X Lu, T Li, A Bertei, JIS Cho, TMM Heenan… - Energy & …, 2018 - pubs.rsc.org
Mass transport can significantly limit the rate of reaction and lead to concentration
polarisation in electrochemical devices, especially under the conditions of high operating …

[HTML][HTML] Correlation between triple phase boundary and the microstructure of solid oxide fuel cell anodes: the role of composition, porosity and Ni densification

X Lu, TMM Heenan, JJ Bailey, T Li, K Li, DJL Brett… - Journal of Power …, 2017 - Elsevier
This study aims to correlate the active triple phase boundaries (TPBs) to the variation of as-
prepared anode microstructures and Ni densifications based on the reconstructed 3D …

[HTML][HTML] The fractal nature of the three-phase boundary: a heuristic approach to the degradation of nanostructured solid oxide fuel cell anodes

A Bertei, E Ruiz-Trejo, K Kareh, V Yufit, X Wang… - Nano Energy, 2017 - Elsevier
Nickel/zirconia-based nanostructured electrodes for solid oxide fuel cells suffer from poor
stability even at intermediate temperature. This study quantifies the electrochemical and …

The role of synthesis pathway on the microstructural characteristics of sulfur-carbon composites: X-ray imaging and electrochemistry in lithium battery

D Di Lecce, V Marangon, W Du, DJL Brett… - Journal of Power …, 2020 - Elsevier
Two synthesis pathways are adopted to tune the microstructural characteristics of sulfur-
carbon (SC) composites for application in lithium-sulfur (Li-S) batteries. Both methods …

[HTML][HTML] 4D nano-tomography of electrochemical energy devices using lab-based X-ray imaging

TMM Heenan, DP Finegan, B Tjaden, X Lu, F Iacoviello… - Nano Energy, 2018 - Elsevier
Electrochemical energy devices offer a variety of alternate means for low-carbon, multi-scale
energy conversion and storage. Reactions in these devices are supported by electrodes …

Correlative X-ray tomographic imaging of catalyst layer degradation in fuel cells

RT White, D Ramani, S Eberhardt… - Journal of The …, 2019 - iopscience.iop.org
Effective catalyst layer design is vital for high-performing polymer electrolyte fuel cells.
However, the desired catalyst layer structure may be compromised by operational …

Engineering solid oxide fuel cell electrode microstructure by a micro-modeling tool based on estimation of TPB length

B Timurkutluk, T Altan, S Toros, O Genc, S Celik… - International Journal of …, 2021 - Elsevier
In this study, a typical solid oxide fuel cell (SOFC) electrode microstructure is numerically
optimized in terms of the volume fraction of the catalyst, electrolyte and pore phases via a …