Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family: Crystal structure, thermal behaviour and Mössbauer spectroscopy studies

D. M. Bykov; R. J.M. Konings; C. Apostolidis; A. Hen; E. Colineau; T. Wiss; P. Raison

doi:10.1039/c7dt02110k

Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family: Crystal structure, thermal behaviour and Mössbauer spectroscopy studies

D. M. Bykov, R. J.M. Konings, C. Apostolidis, A. Hen, E. Colineau, T. Wiss, P. Raison

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A new double neptunium zirconium phosphate of the type M_xZr₂(PO₄)₃ (M = Np), crystallizing in the structure type NaZr₂(PO₄)₃ (NZP, NASICON), was synthesized by solid state reactions at high temperatures and characterized by X-ray diffraction, infrared spectroscopy and Mössbauer spectroscopy. The Rietveld refinement of the XRD pattern together with the analysis of the IR spectra of the sample confirmed the space group P3c, the same as that for the lanthanide analogues Ln_0.33Zr₂(PO₄)₃. However, Mössbauer studies revealed the presence of neptunium in the two oxidation states +3 and +4, indicating a two-phase NZP system with different crystallographic environments of the neptunium atoms. The thermal behaviour of the sample was followed up to 1400 °C by thermogravimetric analysis.

Original language	English
Pages (from-to)	11626-11635
Number of pages	10
Journal	Dalton Transactions
Volume	46
Issue number	35
DOIs	https://doi.org/10.1039/c7dt02110k
State	Published - 1 Jan 2017
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

Access to Document

10.1039/c7dt02110k

Cite this

@article{441dbb07115546899518bd4930ac4128,

title = "Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family: Crystal structure, thermal behaviour and M{\"o}ssbauer spectroscopy studies",

abstract = "A new double neptunium zirconium phosphate of the type MxZr2(PO4)3 (M = Np), crystallizing in the structure type NaZr2(PO4)3 (NZP, NASICON), was synthesized by solid state reactions at high temperatures and characterized by X-ray diffraction, infrared spectroscopy and M{\"o}ssbauer spectroscopy. The Rietveld refinement of the XRD pattern together with the analysis of the IR spectra of the sample confirmed the space group P3c, the same as that for the lanthanide analogues Ln0.33Zr2(PO4)3. However, M{\"o}ssbauer studies revealed the presence of neptunium in the two oxidation states +3 and +4, indicating a two-phase NZP system with different crystallographic environments of the neptunium atoms. The thermal behaviour of the sample was followed up to 1400 °C by thermogravimetric analysis.",

author = "Bykov, {D. M.} and Konings, {R. J.M.} and C. Apostolidis and A. Hen and E. Colineau and T. Wiss and P. Raison",

note = "Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

month = jan,

day = "1",

doi = "10.1039/c7dt02110k",

language = "English",

volume = "46",

pages = "11626--11635",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "35",

}

TY - JOUR

T1 - Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family

T2 - Crystal structure, thermal behaviour and Mössbauer spectroscopy studies

AU - Bykov, D. M.

AU - Konings, R. J.M.

AU - Apostolidis, C.

AU - Hen, A.

AU - Colineau, E.

AU - Wiss, T.

AU - Raison, P.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - A new double neptunium zirconium phosphate of the type MxZr2(PO4)3 (M = Np), crystallizing in the structure type NaZr2(PO4)3 (NZP, NASICON), was synthesized by solid state reactions at high temperatures and characterized by X-ray diffraction, infrared spectroscopy and Mössbauer spectroscopy. The Rietveld refinement of the XRD pattern together with the analysis of the IR spectra of the sample confirmed the space group P3c, the same as that for the lanthanide analogues Ln0.33Zr2(PO4)3. However, Mössbauer studies revealed the presence of neptunium in the two oxidation states +3 and +4, indicating a two-phase NZP system with different crystallographic environments of the neptunium atoms. The thermal behaviour of the sample was followed up to 1400 °C by thermogravimetric analysis.

AB - A new double neptunium zirconium phosphate of the type MxZr2(PO4)3 (M = Np), crystallizing in the structure type NaZr2(PO4)3 (NZP, NASICON), was synthesized by solid state reactions at high temperatures and characterized by X-ray diffraction, infrared spectroscopy and Mössbauer spectroscopy. The Rietveld refinement of the XRD pattern together with the analysis of the IR spectra of the sample confirmed the space group P3c, the same as that for the lanthanide analogues Ln0.33Zr2(PO4)3. However, Mössbauer studies revealed the presence of neptunium in the two oxidation states +3 and +4, indicating a two-phase NZP system with different crystallographic environments of the neptunium atoms. The thermal behaviour of the sample was followed up to 1400 °C by thermogravimetric analysis.

UR - http://www.scopus.com/inward/record.url?scp=85029285106&partnerID=8YFLogxK

U2 - 10.1039/c7dt02110k

DO - 10.1039/c7dt02110k

M3 - Article

C2 - 28832053

AN - SCOPUS:85029285106

SN - 1477-9226

VL - 46

SP - 11626

EP - 11635

JO - Dalton Transactions

JF - Dalton Transactions

IS - 35

ER -

Synthesis and investigation of neptunium zirconium phosphate, a member of the NZP family: Crystal structure, thermal behaviour and Mössbauer spectroscopy studies

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this