Abstract
Thermoelectrochemical cells are a promising new technology for harvesting low-grade waste heat. The operation of these cells relies on a redox couple within an electrolyte, which is most commonly water-based, and improvement of these materials is a key aspect of the advancement of this technology. Here, we report the gelation of aqueous electrolytes containing the K3Fe(CN)6 /K4Fe(CN)6 redox couple using a range of different polymers, including polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (Cmc), polyacrylamide (PAAm), and two commercial polyurethane-based polymers: HydroMed D640 and HydroSlip C. These polymers produce quasi-solid-state electrolytes with sufficient mechanical properties to prevent leakage, and allow improved device flexibility and safety. Furthermore, the incorporation of various ionic liquids within the optimized hydrogel network is investigated as a route to enhance the electrochemical and mechanical properties and thermal energy harvesting performance of the hydrogels.
| Original language | English |
|---|---|
| Pages (from-to) | 112-121 |
| Number of pages | 10 |
| Journal | Australian Journal of Chemistry |
| Volume | 72 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Jan 2019 |
Cite this
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Hydrogels containing the ferri/ferrocyanide redox couple and ionic liquids for thermocells. / Russo, Matthew; Warren, Holly; Spinks, Geoffrey M.; Macfarlane, Douglas R.; Pringle, Jennifer M.
In: Australian Journal of Chemistry, Vol. 72, No. 2, 01.01.2019, p. 112-121.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Hydrogels containing the ferri/ferrocyanide redox couple and ionic liquids for thermocells
AU - Russo, Matthew
AU - Warren, Holly
AU - Spinks, Geoffrey M.
AU - Macfarlane, Douglas R.
AU - Pringle, Jennifer M.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Thermoelectrochemical cells are a promising new technology for harvesting low-grade waste heat. The operation of these cells relies on a redox couple within an electrolyte, which is most commonly water-based, and improvement of these materials is a key aspect of the advancement of this technology. Here, we report the gelation of aqueous electrolytes containing the K3Fe(CN)6 /K4Fe(CN)6 redox couple using a range of different polymers, including polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (Cmc), polyacrylamide (PAAm), and two commercial polyurethane-based polymers: HydroMed D640 and HydroSlip C. These polymers produce quasi-solid-state electrolytes with sufficient mechanical properties to prevent leakage, and allow improved device flexibility and safety. Furthermore, the incorporation of various ionic liquids within the optimized hydrogel network is investigated as a route to enhance the electrochemical and mechanical properties and thermal energy harvesting performance of the hydrogels.
AB - Thermoelectrochemical cells are a promising new technology for harvesting low-grade waste heat. The operation of these cells relies on a redox couple within an electrolyte, which is most commonly water-based, and improvement of these materials is a key aspect of the advancement of this technology. Here, we report the gelation of aqueous electrolytes containing the K3Fe(CN)6 /K4Fe(CN)6 redox couple using a range of different polymers, including polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (Cmc), polyacrylamide (PAAm), and two commercial polyurethane-based polymers: HydroMed D640 and HydroSlip C. These polymers produce quasi-solid-state electrolytes with sufficient mechanical properties to prevent leakage, and allow improved device flexibility and safety. Furthermore, the incorporation of various ionic liquids within the optimized hydrogel network is investigated as a route to enhance the electrochemical and mechanical properties and thermal energy harvesting performance of the hydrogels.
UR - http://www.scopus.com/inward/record.url?scp=85057593678&partnerID=8YFLogxK
U2 - 10.1071/CH18395
DO - 10.1071/CH18395
M3 - Article
VL - 72
SP - 112
EP - 121
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
SN - 0004-9425
IS - 2
ER -