TY  - JOUR
AB  - The low-temperature heat capacities of nickel titanate (NiTiO3), cobalt titanate (CoTiO3), and cobalt carbonate (CoCO3) were measured between 2 and 300 K, and thermochemical functions were derived from the results. Our new data show previously unknown low-temperature lambda-shaped heat capacity anomalies peaking at 37 K for CoTiO3 and 26 K for NiTiO3. From our data we calculate standard molar entropies (298.15 K) for NiTiO3 of 90.9 ± 0.7 J mol-1 K-1 and for CoTiO3 of 94.4 ± 0.8 J mol-1 K-1. For CoCO3, we find only a small broad heat capacity anomaly, peaking at about 31 K. From our data, we suggest a new standard entropy (298.15 K) for CoCO3 of 88.9 ± 0.7 J mol-1 K-1.
AU  - Klemme, Stephan
AU  - Hermes, Wilfried
AU  - Eul, Mathias
AU  - Wijbrans, Clazina Heleen
AU  - Rohrbach, Arno
AU  - Pöttgen, Rainer
DA  - 2011-09-19
DO  - doi:10.1186/1752-153X-5-54
LA  - eng
N1  - Finanziert durch den Open-Access-Publikationsfonds 2011/2012 der Deutschen Forschungsgemeinschaft (DFG) und der Westfälischen Wilhelms-Universität Münster (WWU Münster).
N1  - Chemistry Central Journa 5 (2011) 54
PY  - 2011-09-19
TI  - New thermodynamic data for CoTiO3, NiTiO3 and CoCO3 based on low-temperature calorimetric measurements
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-47389419871
Y2  - 2024-11-24T04:47:40
ER  -