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Pyrazolium Phase Change Materials for Solar-Thermal and Wind Energy Storage

preprint
submitted on 09.09.2019 and posted on 10.09.2019 by Karolina Matuszek, R. Vijayaraghavan, Craig Forsyth, Surianarayanan Mahadevan, Mega Kar, Douglas Macfarlane
Renewable energy has the ultimate capacity to resolve the environmental and scarcity challenges of the world’s energy supplies. However, both the utility of these sources and the economics of their implementation are strongly limited by their intermittent nature; inexpensive means of energy storage therefore needs to be part of the design. Distributed thermal energy storage is surprisingly underdeveloped in this context, in part due to the lack of advanced storage materials. Here, we describe a novel family of thermal energy storage materials based on pyrazolium cation, that operate in the 100-220°C temperature range, offering safe, inexpensive capacity, opening new pathways for high efficiency collection and storage of both solar-thermal energy, as well as excess wind power. We probe the molecular origins of the high thermal energy storage capacity of these ionic materials and demonstrate extended cycling that provides a basis for further scale up and development.

Funding

Organic Salts as Intermediate Phase Change Materials

United States Army

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History

Email Address of Submitting Author

karolina.matuszek@monash.edu

Institution

Monash University

Country

Australia

ORCID For Submitting Author

0000-0001-8979-5927

Declaration of Conflict of Interest

no conflict of interest

Version Notes

preprint just submitted to the journal

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