TY - JOUR
T1 - P–V–T equation of state of rhodium oxyhydroxide
AU - Suzuki, Akio
N1 - Funding Information:
This work was supported by KAKENHI: [grant numbers JP21684032, JP20103003, JP15H05826, JP15H05828, and JP16K13901] from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. The synchrotron X-ray experiments were performed at the Photon Factory, High Energy Accelerator Research Organization KEK [Proposal nos. 2006G044, 2010G182, and 2015G524]. We thank Y. Horioka, N. Hisano, and K. Obata for their technical support.
Publisher Copyright:
© 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/4/3
Y1 - 2018/4/3
N2 - A high pressure X-ray diffraction study of RhOOH was carried out up to 17.44 GPa to investigate the compression behavior of an oxyhydroxide with an InOOH-related structure. A fit to the third-order Birch–Murnaghan equation of state gave K0= 208 ± 6 GPa, and K′ = 9.4 ± 1.3. The temperature derivative of the bulk modulus was found to be ∂K/∂T = −0.06 ± 0.02 GPa K−1. The refined parameters for volume thermal expansion were α0= 2.7 ± 0.3 × 10−5K−1; α1= 1.7 ± 1.1 × 10−8K−2in the polynomial form (α(T) = α0+ α1(T−300)). Our results show that RhOOH is very incompressible, and has a higher bulk modulus than other InOOH-structured oxyhydroxides (e.g. δ-AlOOH, ε-FeOOH, and γ-MnOOH).
AB - A high pressure X-ray diffraction study of RhOOH was carried out up to 17.44 GPa to investigate the compression behavior of an oxyhydroxide with an InOOH-related structure. A fit to the third-order Birch–Murnaghan equation of state gave K0= 208 ± 6 GPa, and K′ = 9.4 ± 1.3. The temperature derivative of the bulk modulus was found to be ∂K/∂T = −0.06 ± 0.02 GPa K−1. The refined parameters for volume thermal expansion were α0= 2.7 ± 0.3 × 10−5K−1; α1= 1.7 ± 1.1 × 10−8K−2in the polynomial form (α(T) = α0+ α1(T−300)). Our results show that RhOOH is very incompressible, and has a higher bulk modulus than other InOOH-structured oxyhydroxides (e.g. δ-AlOOH, ε-FeOOH, and γ-MnOOH).
KW - equation of state
KW - InOOH-type oxyhydroxide
KW - RhOOH
UR - http://www.scopus.com/inward/record.url?scp=85041629307&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041629307&partnerID=8YFLogxK
U2 - 10.1080/08957959.2018.1435784
DO - 10.1080/08957959.2018.1435784
M3 - Article
AN - SCOPUS:85041629307
SN - 0895-7959
VL - 38
SP - 145
EP - 152
JO - High Pressure Research
JF - High Pressure Research
IS - 2
ER -