Enhancing thermochemical energy storage density of magnesium‐manganese oxides
Abstract
Abstract Three approaches for enhancing the energy density of magnesium‐manganese oxide porous reactive materials for thermochemical energy storage (TCES) are investigated: adjusting the mole ratio, lowering the oxygen partial pressure during thermal reduction, and transition metal oxide doping. The manganese‐to‐magnesium molar ratios are varied to determine the composition yielding maximal energy density. The increase in energy density by lowering the oxygen partial pressure during the reduction step is also studied. Volumetric oxygen exchange capacities are measured for every case considered. Finally, the effects of doping magnesium‐manganese oxide with cobalt oxide, iron oxide, zinc oxide, and nickel oxide on the TCES properties are examined. We found the optimal Mn/Mg ratio for maximum volumetric energy density is in the vicinity of 1/1, achieving 1813 ± 175, 2178 ± 204, and 2323 ± 281 MJ m −3 for oxygen partial pressures of 0.2, 0.05, and 0.01 atm during thermal reduction, respectively; lowering the oxygen partial pressure below atmospheric during thermal reduction enhances oxygen exchange capacities and improves the energy density between 10%‐42% and 24%‐55% for oxygen partial pressures of 0.05 and 0.01 atm, respectively, with the greatest increases observed for high manganese content samples; and, doped samples exhibit reduced oxygen exchange and questionable reactive stability, thus appearing to reduce energy density.
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1558808
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Energy Storage
- Additional Journal Information:
- Journal Name: Energy Storage Journal Volume: 1 Journal Issue: 5; Journal ID: ISSN 2578-4862
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Citation Formats
King, Keith, Randhir, Kelvin, Petrasch, Joerg, and Klausner, James. Enhancing thermochemical energy storage density of magnesium‐manganese oxides. Country unknown/Code not available: N. p., 2019.
Web. doi:10.1002/est2.83.
King, Keith, Randhir, Kelvin, Petrasch, Joerg, & Klausner, James. Enhancing thermochemical energy storage density of magnesium‐manganese oxides. Country unknown/Code not available. https://doi.org/10.1002/est2.83
King, Keith, Randhir, Kelvin, Petrasch, Joerg, and Klausner, James. Mon .
"Enhancing thermochemical energy storage density of magnesium‐manganese oxides". Country unknown/Code not available. https://doi.org/10.1002/est2.83.
@article{osti_1558808,
title = {Enhancing thermochemical energy storage density of magnesium‐manganese oxides},
author = {King, Keith and Randhir, Kelvin and Petrasch, Joerg and Klausner, James},
abstractNote = {Abstract Three approaches for enhancing the energy density of magnesium‐manganese oxide porous reactive materials for thermochemical energy storage (TCES) are investigated: adjusting the mole ratio, lowering the oxygen partial pressure during thermal reduction, and transition metal oxide doping. The manganese‐to‐magnesium molar ratios are varied to determine the composition yielding maximal energy density. The increase in energy density by lowering the oxygen partial pressure during the reduction step is also studied. Volumetric oxygen exchange capacities are measured for every case considered. Finally, the effects of doping magnesium‐manganese oxide with cobalt oxide, iron oxide, zinc oxide, and nickel oxide on the TCES properties are examined. We found the optimal Mn/Mg ratio for maximum volumetric energy density is in the vicinity of 1/1, achieving 1813 ± 175, 2178 ± 204, and 2323 ± 281 MJ m −3 for oxygen partial pressures of 0.2, 0.05, and 0.01 atm during thermal reduction, respectively; lowering the oxygen partial pressure below atmospheric during thermal reduction enhances oxygen exchange capacities and improves the energy density between 10%‐42% and 24%‐55% for oxygen partial pressures of 0.05 and 0.01 atm, respectively, with the greatest increases observed for high manganese content samples; and, doped samples exhibit reduced oxygen exchange and questionable reactive stability, thus appearing to reduce energy density.},
doi = {10.1002/est2.83},
journal = {Energy Storage},
number = 5,
volume = 1,
place = {Country unknown/Code not available},
year = {Mon Aug 26 00:00:00 EDT 2019},
month = {Mon Aug 26 00:00:00 EDT 2019}
}
https://doi.org/10.1002/est2.83
Search WorldCat to find libraries that may hold this journalWorks referenced in this record:
Thermochemical Heat Storage at High Temperatures using Mn2O3/Mn3O4 System: Narrowing the Redox Hysteresis by Metal Co-doping
journal, June 2015
- Carrillo, Alfonso J.; Serrano, David P.; Pizarro, Patricia
- Energy Procedia, Vol. 73
Screening of thermochemical systems based on solid-gas reversible reactions for high temperature solar thermal energy storage
journal, October 2016
- André, Laurie; Abanades, Stéphane; Flamant, Gilles
- Renewable and Sustainable Energy Reviews, Vol. 64
Improving the Thermochemical Energy Storage Performance of the Mn 2 O 3 /Mn 3 O 4 Redox Couple by the Incorporation of Iron
journal, April 2015
- Carrillo, Alfonso J.; Serrano, David P.; Pizarro, Patricia
- ChemSusChem, Vol. 8, Issue 11
Thermodynamics of the Mg-Mn-O system-modeling and heat capacity measurements
journal, January 2017
- Dilner, David; Pavlyuchkov, Dmytro; Zienert, Tilo
- Journal of the American Ceramic Society, Vol. 100, Issue 4
Lithium manganese oxides as high-temperature thermal energy storage system
journal, September 2016
- Varsano, Francesca; Alvani, Carlo; La Barbera, Aurelio
- Thermochimica Acta, Vol. 640
Application of Neumann–Kopp rule for the estimation of heat capacity of mixed oxides
journal, January 2010
- Leitner, J.; Voňka, P.; Sedmidubský, D.
- Thermochimica Acta, Vol. 497, Issue 1-2
Magnesium-manganese oxides for high temperature thermochemical energy storage
journal, February 2019
- Randhir, Kelvin; King, Keith; Rhodes, Nathan
- Journal of Energy Storage, Vol. 21
Critical Evaluation and Thermodynamic Modeling of the Mg-Mn-O (MgO-MnO-MnO 2 ) System
journal, July 2014
- Panda, Sourav Kumar; Jung, In-Ho
- Journal of the American Ceramic Society, Vol. 97, Issue 10
A review on high-temperature thermochemical energy storage based on metal oxides redox cycle
journal, July 2018
- Wu, Sike; Zhou, Cheng; Doroodchi, Elham
- Energy Conversion and Management, Vol. 168
High-temperature thermochemical energy storage based on redox reactions using Co-Fe and Mn-Fe mixed metal oxides
journal, September 2017
- André, Laurie; Abanades, Stéphane; Cassayre, Laurent
- Journal of Solid State Chemistry, Vol. 253
Metal oxides for thermochemical energy storage: A comparison of several metal oxide systems
journal, March 2016
- Block, Tina; Schmücker, Martin
- Solar Energy, Vol. 126
Calorimetric method for determining the thermochemical energy storage capacities of redox metal oxides
journal, March 2019
- King, Keith; Randhir, Kelvin; Klausner, James
- Thermochimica Acta, Vol. 673