Thermodynamic properties of gaseous cerium phosphate studied by Knudsen effusion mass spectrometry

被引：1
|
作者：
Lopatin, Sergey I. [1 ]
Shugurov, Sergey M. [1 ]
Panin, Andrej I. [1 ]
机构：
[1] St Petersburg State Univ, Inst Chem, 26 Unversitetskii Ave, St Petersburg 198504, Russia
来源：
JOURNAL OF MASS SPECTROMETRY | 2019年 / 54卷 / 06期
关键词：
ab initio calculations; double; two-temperature cell; gaseous cerium phosphate CePO2; Knudsen effusion mass spectrometry; thermodynamic properties; OXYGEN-CONTAINING ACIDS; IONIZATION CROSS-SECTIONS; HIGH-TEMPERATURE; THERMAL-STABILITY; SALTS; VAPORIZATION; MOLECULES; ENERGY;
D O I：
10.1002/jms.4358
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Gaseous CePO2 has been identified by Knudsen effusion mass spectrometry during vaporization of CeO2 and magnesium diphosphate from tungsten double, two-temperature effusion cell. Structure and molecular parameters of gaseous cerium phosphate under study were determined using quantum chemical calculations. On the basis of equilibrium constants measured for gas-phase reaction, standard formation enthalpy of CePO2 was determined to be -508 +/- 41 kJ mol(-1) at the temperature 298 K.
引用
收藏
页码：507 / 519
页数：13
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