Hauptseite > Publikationsdatenbank > Influence of temperature on the dissolution kinetics of synthetic LaPO4-monazite in acidic media between 50 and 130 °C > print

001     849928
005     20240712084550.0
024 7 _ |a 10.1016/j.jnucmat.2018.07.009
|2 doi
024 7 _ |a 0022-3115
|2 ISSN
024 7 _ |a 1873-4820
|2 ISSN
024 7 _ |a WOS:000442483300054
|2 WOS
037 _ _ |a FZJ-2018-04024
041 _ _ |a English
082 _ _ |a 530
100 1 _ |a Arinicheva, Yulia
|0 P:(DE-Juel1)145894
|b 0
|e Corresponding author
245 _ _ |a Influence of temperature on the dissolution kinetics of synthetic LaPO4-monazite in acidic media between 50 and 130 °C
260 _ _ |a Amsterdam [u.a.]
|c 2018
|b Elsevier Science
336 7 _ |a article
|2 DRIVER
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|b journal
|m journal
|0 PUB:(DE-HGF)16
|s 1538111274_14789
|2 PUB:(DE-HGF)
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a Journal Article
|0 0
|2 EndNote
520 _ _ |a Single-phase monazite-type ceramics are discussed as waste forms for the safe disposal of surplus plutonium or separated minor actinides. To gain a deeper insight into the mechanism governing the dissolution of monazite-type compounds, the dissolution kinetics of synthetic LaPO4-monazite was systematically studied by dynamic dissolution experiments carried out in the temperature range from 50 to 130 °C in acidic media (0.01 M HNO3). The dissolution rates at far from equilibrium conditions increased from 3.2 × 10−5 g m−2 d−1 at 50 °C to 2.5 × 10−4 g m−2 d−1 at 130 °C. Two different temperature regions were observed, in which the normalised dissolution rates of LaPO4 have a diverging temperature dependence, indicating two different mechanisms of dissolution: namely surface-controlled dissolution (T = 50–90 °C; Ea = 44 kJ mol−1) and transport-controlled dissolution (T = 90–130 °C; Ea = 7.5 kJ mol−1). Complementary thermodynamic modelling studies of the dissolution of LaPO4 at the experimental conditions show that La-rhabdophane (LaPO4·0.667H2O) is the thermodynamically favoured phosphate phase in aqueous environments below about 100 °C. Apparently, the hydration of monazite and the formation of a thin surface layer consisting of rhabdophane is an intermediate step controlling the dissolution kinetics of the LaPO4 monazite ceramics in low temperature aqueous environments.Keywords
536 _ _ |a 161 - Nuclear Waste Management (POF3-161)
|0 G:(DE-HGF)POF3-161
|c POF3-161
|f POF III
|x 0
588 _ _ |a Dataset connected to CrossRef
700 1 _ |a Gausse, Clemence
|0 P:(DE-HGF)0
|b 1
700 1 _ |a Neumeier, Stefan
|0 P:(DE-Juel1)130389
|b 2
700 1 _ |a Brandt, Felix
|0 P:(DE-Juel1)144040
|b 3
700 1 _ |a Rozov, Konstantin
|0 P:(DE-Juel1)144076
|b 4
700 1 _ |a Szenknect, Stéphanie
|0 0000-0003-3691-3621
|b 5
700 1 _ |a Dacheux, Nicolas
|0 P:(DE-HGF)0
|b 6
700 1 _ |a Bosbach, Dirk
|0 P:(DE-Juel1)130324
|b 7
700 1 _ |a Deissmann, Guido
|0 P:(DE-Juel1)156511
|b 8
773 _ _ |a 10.1016/j.jnucmat.2018.07.009
|g p. S002231151830374X
|0 PERI:(DE-600)2001279-2
|p 488-495
|t Journal of nuclear materials
|v 509
|y 2018
|x 0022-3115
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.pdf
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.gif?subformat=icon
|x icon
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.jpg?subformat=icon-1440
|x icon-1440
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.jpg?subformat=icon-180
|x icon-180
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.jpg?subformat=icon-640
|x icon-640
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/849928/files/1-s2.0-S002231151830374X-main.pdf?subformat=pdfa
|x pdfa
|y Restricted
909 C O |p VDB
|o oai:juser.fz-juelich.de:849928
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)145894
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 2
|6 P:(DE-Juel1)130389
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 3
|6 P:(DE-Juel1)144040
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 7
|6 P:(DE-Juel1)130324
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 8
|6 P:(DE-Juel1)156511
913 1 _ |a DE-HGF
|l Nukleare Entsorgung und Sicherheit sowie Strahlenforschung
|1 G:(DE-HGF)POF3-160
|0 G:(DE-HGF)POF3-161
|2 G:(DE-HGF)POF3-100
|v Nuclear Waste Management
|x 0
|4 G:(DE-HGF)POF
|3 G:(DE-HGF)POF3
|b Energie
914 1 _ |y 2018
915 _ _ |a Nationallizenz
|0 StatID:(DE-HGF)0420
|2 StatID
915 _ _ |a JCR
|0 StatID:(DE-HGF)0100
|2 StatID
|b J NUCL MATER : 2015
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0200
|2 StatID
|b SCOPUS
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0600
|2 StatID
|b Ebsco Academic Search
915 _ _ |a Peer Review
|0 StatID:(DE-HGF)0030
|2 StatID
|b ASC
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0199
|2 StatID
|b Thomson Reuters Master Journal List
915 _ _ |a WoS
|0 StatID:(DE-HGF)0110
|2 StatID
|b Science Citation Index
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0150
|2 StatID
|b Web of Science Core Collection
915 _ _ |a WoS
|0 StatID:(DE-HGF)0111
|2 StatID
|b Science Citation Index Expanded
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1150
|2 StatID
|b Current Contents - Physical, Chemical and Earth Sciences
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1160
|2 StatID
|b Current Contents - Engineering, Computing and Technology
915 _ _ |a IF < 5
|0 StatID:(DE-HGF)9900
|2 StatID
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)IEK-6-20101013
|k IEK-6
|l Nukleare Entsorgung und Reaktorsicherheit
|x 0
920 1 _ |0 I:(DE-Juel1)IEK-1-20101013
|k IEK-1
|l Werkstoffsynthese und Herstellungsverfahren
|x 1
980 _ _ |a journal
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IEK-6-20101013
980 _ _ |a I:(DE-Juel1)IEK-1-20101013
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IFN-2-20101013
981 _ _ |a I:(DE-Juel1)IMD-2-20101013

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21