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Discovery of Rhombohedral NaIrO3 Polymorph by In Situ High-Pressure Synthesis of High-Oxidation-State Materials Using Laser Heating in Diamond Anvil Cells

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Discovery of Rhombohedral NaIrO3 Polymorph by In Situ High-Pressure Synthesis of High-Oxidation-State Materials Using Laser Heating in Diamond Anvil Cells. / Kronbo, Camilla H.; Ottesen, Martin; Hansen, Mads F. et al.

In: Inorganic Chemistry, Vol. 59, No. 21, 11.2020, p. 15780-15787.

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@article{3b43996aa28540078fce2f52a85c72e3,
title = "Discovery of Rhombohedral NaIrO3 Polymorph by In Situ High-Pressure Synthesis of High-Oxidation-State Materials Using Laser Heating in Diamond Anvil Cells",
abstract = "We report a new in situ synthesis method effective for discovery of high-oxidation-state materials using laser-heated diamond anvil cells. The issue of chemical reduction during thermally induced phase transitions that occur spontaneously in a noble gas pressure transmitting media (PTM) can be overcome by thermal decomposition of an oxygen-rich solid PTM (NaCl + NaClO3). To illustrate the technical challenges the method overcomes, we applied this new method for two known pentavalent A(I)B(V)O3 postperovskite compounds. We successfully synthesized the two postperovskites, NaOsO3 and NaIrO3, and quenched to ambient conditions. Furthermore, we report the discovery of a new low-pressure polymorph of NaIrO3, illustrating the high potential for new materials discovery. This new method will enable realization of new high-oxidation-state postperovskites and can be applied for many other structure families in a P, T parameter space that is not easily accessible using conventional high-pressure synthesis methods.",
author = "Kronbo, {Camilla H.} and Martin Ottesen and Hansen, {Mads F.} and Emma Ehrenreich-Petersen and Yue Meng and Martin Bremholm",
year = "2020",
month = nov,
doi = "10.1021/acs.inorgchem.0c02233",
language = "English",
volume = "59",
pages = "15780--15787",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "AMER CHEMICAL SOC",
number = "21",

}

RIS

TY - JOUR

T1 - Discovery of Rhombohedral NaIrO3 Polymorph by In Situ High-Pressure Synthesis of High-Oxidation-State Materials Using Laser Heating in Diamond Anvil Cells

AU - Kronbo, Camilla H.

AU - Ottesen, Martin

AU - Hansen, Mads F.

AU - Ehrenreich-Petersen, Emma

AU - Meng, Yue

AU - Bremholm, Martin

PY - 2020/11

Y1 - 2020/11

N2 - We report a new in situ synthesis method effective for discovery of high-oxidation-state materials using laser-heated diamond anvil cells. The issue of chemical reduction during thermally induced phase transitions that occur spontaneously in a noble gas pressure transmitting media (PTM) can be overcome by thermal decomposition of an oxygen-rich solid PTM (NaCl + NaClO3). To illustrate the technical challenges the method overcomes, we applied this new method for two known pentavalent A(I)B(V)O3 postperovskite compounds. We successfully synthesized the two postperovskites, NaOsO3 and NaIrO3, and quenched to ambient conditions. Furthermore, we report the discovery of a new low-pressure polymorph of NaIrO3, illustrating the high potential for new materials discovery. This new method will enable realization of new high-oxidation-state postperovskites and can be applied for many other structure families in a P, T parameter space that is not easily accessible using conventional high-pressure synthesis methods.

AB - We report a new in situ synthesis method effective for discovery of high-oxidation-state materials using laser-heated diamond anvil cells. The issue of chemical reduction during thermally induced phase transitions that occur spontaneously in a noble gas pressure transmitting media (PTM) can be overcome by thermal decomposition of an oxygen-rich solid PTM (NaCl + NaClO3). To illustrate the technical challenges the method overcomes, we applied this new method for two known pentavalent A(I)B(V)O3 postperovskite compounds. We successfully synthesized the two postperovskites, NaOsO3 and NaIrO3, and quenched to ambient conditions. Furthermore, we report the discovery of a new low-pressure polymorph of NaIrO3, illustrating the high potential for new materials discovery. This new method will enable realization of new high-oxidation-state postperovskites and can be applied for many other structure families in a P, T parameter space that is not easily accessible using conventional high-pressure synthesis methods.

UR - http://www.scopus.com/inward/record.url?scp=85095388548&partnerID=8YFLogxK

U2 - 10.1021/acs.inorgchem.0c02233

DO - 10.1021/acs.inorgchem.0c02233

M3 - Journal article

C2 - 33131276

AN - SCOPUS:85095388548

VL - 59

SP - 15780

EP - 15787

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 21

ER -