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SUMMARY:Energy Storage Rocks: Metal Carbonates  as Thermochemical Energy S
 torage Materials
DTSTART;VALUE=DATE-TIME:20211125T065300Z
DTEND;VALUE=DATE-TIME:20211125T065400Z
DTSTAMP;VALUE=DATE-TIME:20260306T082449Z
UID:indico-contribution-4199@events01.synchrotron.org.au
DESCRIPTION:Speakers: Kyran Williamson (Department of Physics and Astronom
 y\, Curtin University\,)\nThe intermittent nature of renewable energy is a
  major challenge that can be overcome via cheap and effective energy stora
 ge [1].   Thermochemical energy storage is an upcoming technology that can
  improve efficiency in applications such as concentrated solar power[2]. M
 etal carbonates have great potential as thermochemical energy storage mate
 rials\, through the reversible endo/exothermic desorption/absorption of ca
 rbon dioxide (CO2)[3]. However\, major challenges include the loss of cycl
 ic capacity and slow reaction kinetics[3].\nRecently\, it has been establi
 shed that raw unrefined dolomite\, CaMg(CO3)2\, performed significantly be
 tter than laboratory synthesized dolomite due to the positive effect of ch
 emically inert impurities present in the sample[4] However\, increasing it
 s relatively low operational temperature (550 °C) will improve efficiency
 [4]. The present research explores reactive metal carbonate composites\, w
 hich consist of barium carbonate destabilised using titanium (IV) oxide (T
 iO2) or barium silicate (BaSiO3)[5]. This reduces the operating temperatur
 e from 1400 °C to\, more suitable temperatures of 1100 °C and 850 °C\, 
 respectively\, and improves kinetics of CO2 release and uptake. The reacti
 ons are explored using in situ synchrotron XRD combined with a variety of 
 other characterisation techniques.\n[1] T. Sweetnam and C. Spataru\, in St
 oring Energy\, edited by T.M. Letcher (Elsevier\, Oxford\, 2016)\, pp. 501
 –508.\n[2] C. Prieto\, P. Cooper\, A.I. Fernández\, and L.F. Cabeza\, R
 enew. Sustain. Energy Rev. **60**\, 909 (2016).\n[3] L. André\, S. Abanad
 es\, and G. Flamant\, Renew. Sustain. Energy Rev. **64**\, 703 (2016).\n[4
 ] T.D. Humphries\, K.T. Møller\, W.D.A. Rickard\, M.V. Sofianos\, S. Liu\
 , C.E. Buckley\, and M. Paskevicius\, J. Mater. Chem. A **7**\, 1206 (2019
 ).\n[5] K.T. Møller\, K. Williamson\, C.E. Buckley\, and M. Paskevicius\,
  J. Mater. Chem. A **8**\, 10935 (2020).\n\nhttps://events01.synchrotron.o
 rg.au/event/146/contributions/4199/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4199/
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