Thermochemical Energy Storage using LiNO3-Doped Mg(OH)2: A Dehydration Study

Alexandr I. Shkatulov, Yuri Aristov

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The development of advanced materials with high energy density for thermochemical energy storage (TCES) may contribute to the utilization of waste heat from industries. Here, magnesium hydroxide doped with lithium nitrate is investigated as a candidate material for TCES. The doping with LiNO3 depresses the dehydration start temperature by 76°C while the dehydration heat is reduced only slightly. Kinetics of the dehydration of the doped material are studied for various salt contents and temperatures. The effect of the salt on dehydration is investigated using a series of complementary physicochemical methods (powder X-ray diffraction, infrared spectroscopy, N2 adsorption) and a thermodynamic model of the effect is discussed.

Original languageEnglish
Pages (from-to)1844-1851
Number of pages8
JournalEnergy Technology
Volume6
Issue number9
DOIs
Publication statusPublished - 1 Sep 2018

Keywords

  • Chemical heat pumps
  • Dehydration
  • Magnesium hydroxide
  • Modification by salts
  • Thermochemical energy storage
  • CHEMICAL HEAT-PUMP
  • modification by salts
  • MAGNESIUM-HYDROXIDE
  • chemical heat pumps
  • PERFORMANCE
  • BEHAVIOR
  • REACTIVITY
  • THERMAL-DECOMPOSITION
  • PHASE
  • magnesium hydroxide
  • thermochemical energy storage
  • SOLAR
  • SYSTEMS
  • dehydration
  • DECOMPOSITION REACTIONS

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