Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 48, Issue -, Pages 155-159Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2014.09.010
Keywords
X-ray micro-tomography; Vanadium redox flow battery; Electrode degradation
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Funding
- Royal Academy of Engineering
- EPSRC [EP/L014289/1, EP/K038656/1]
- Hyosung S. R. Cho Endowed Chair Professorship
- EPSRC [EP/K038656/1, EP/K014714/1, EP/L014289/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K014714/1, EP/L014289/1, 1272545, EP/K038656/1] Funding Source: researchfish
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Micro-tomography (CT) can be successfully employed to characterize ex situ the structural changes occurring in graphite felt electrodes during vanadium redox flow battery (VRFB) operation. Coupled high resolution X-ray and electron microscopy in conjunction with XPS are used to elucidate the microstructural and chemical changes to the high voltage RFB carbon electrode. The results reveal the onset of corrosion of the carbon felt structure relatively early in the VRFB life-cycle, extended operation is expected to result in extensive microstructural evolution effects. (C) 2014 The Authors. Published by Elsevier B.V.
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