Electrochemical Mitigation of Corrosion in Concentrated Solar Power Systems

Research output: NRELPresentation


To make concentrating solar power (CSP) cost-competitive, the next generation of CSP plants will increase efficiency by operating at a higher temperature, which will require a new thermal energy storage material. One option for the thermal energy storage material is a ternary chloride salt that is stable at the temperatures required, but reacts easily with the atmosphere to form MgOHCl, a corrosive impurity. If left unchecked, this impurity will corrode the containment alloys, potentially leading to dangerous spills. We are working to design an electrochemical purification cell to remove MgOHCl from the molten chloride salt during CSP plant operation.
Original languageAmerican English
Number of pages9
StatePublished - 2021

Publication series

NamePresented at ASES Solar 2021, 3-6 August 2021

NREL Publication Number

  • NREL/PR-5500-81439


  • chloride salts
  • concentrating solar power
  • corrosion
  • electrochemistry


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