Logo image
Back
Bio-waste chicken eggshells to store energy
Journal article   Peer reviewed

Bio-waste chicken eggshells to store energy

M. Minakshi, H. Visbal, D.R.G. Mitchell and M. Fichtner
Dalton Transactions, Vol.47(47), pp.16828-16834
2018
DOI: https://doi.org/10.1039/c8dt03252a
url
Link to Published Version *Subscription may be requiredView

Abstract

Bio-waste in the form of chicken eggshells, which contain high amounts of calcium carbonate (CaCO3), is used to store energy. The fine eggshell powders are used as an electrode against a metallic lithium anode in a non-aqueous electrolyte. The initial discharge capacitance of the eggshell system was found to be 232 F g−1, while the reversible capacitance was 120 F g−1. Thereon, the cell maintained an excellent capacitance retention of 92% over 1000 cycles. The electrochemical performance obtained is comparable to that of commercially available classical activated carbon (AC) material. CaCO3 showed a non-faradaic behaviour and the shape of the electrochemical curves resembles that of the AC electrode. The preliminary findings suggest that CaCO3 from eggshells can be used as the electrode in Li-ion capacitors to store and release charges effectively over a wide electrochemical stability window of 4 V. Using chicken eggshells in this manner not only reduces the amount of bio-waste, but also adds considerable value. A detailed understanding of the electrochemical and physical behaviour of the material is needed in order to improve its performance and to enable its widespread use.

Details

Metrics

38 Record Views
49 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types
Domestic collaboration
International collaboration
Citation topics
2 Chemistry
2.62 Electrochemistry
2.62.52 Electrode Materials
Web Of Science research areas
Chemistry, Inorganic & Nuclear
ESI research areas
Chemistry
Logo image