The crystal chemistry of the alkaline-earth apatites A10(PO4)6CuxOy(H)z (A = Ca, Sr and Ba)

被引：43

作者：

Baikie, Tom ^{[1
]}

Ng, George M. H. ^{[1
]}

Madhavi, S. ^{[1
]}

Pramana, Stevin S. ^{[1
]}

Blake, Kevin ^{[2
]}

Elcombe, Margaret ^{[3
]}

White, T. J. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore, Singapore

[2] James Cook Univ, Townsville, Qld, Australia

[3] Australian Nucl Sci & Technol Org, Bragg Inst, Sydney, NSW, Australia

来源：

DALTON TRANSACTIONS | 2009年 / 34期

关键词：

PHOSPHATE; CALCIUM; IONS;

D O I：

10.1039/b906639j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal chemistry of the cuprate apatites A(4)(I)A(6)(II)(PO4)(6)CuxOy(H)(z) (A = Ca, Sr and Ba) was investigated by powder X-ray (PXRD) and neutron diffraction (PND) and X-ray photoelectron spectroscopy (XPS). The refined crystal structures confirmed earlier X-ray diffraction studies that showed copper resides in the apatite channels and additionally, located hydrogen. For all materials copper is primarily divalent (Cu2+) but in the calcium and strontium analogues co-exists with minor Cu3+. This is in contrast with a previous work where Cu1+ and Cu2+ were reported.

引用

页码：6722 / 6726

页数：5

共 30 条

[1] X-RAY PHOTOEMISSION SPECTROSCOPY STUDY OF LACUO3 [J].

ALLAN, K ;

CAMPION, A ;

ZHOU, J ;

GOODENOUGH, JB .

PHYSICAL REVIEW B, 1990, 41 (16) :11572-11575

[2]

[Anonymous], 2005, CASA COOKBOOK 1

[3]

ARMSTRONG JT, 1993, JEOL LICENSE CITZAF

[4] EFFECTIVENESS OF ROCK PHOSPHATE, COASTAL SUPERPHOSPHATE AND SINGLE SUPERPHOSPHATE FOR PASTURE ON DEEP SANDY SOILS [J].

BOLLAND, MDA ;

CLARKE, MF ;

YEATES, JS .

FERTILIZER RESEARCH, 1995, 41 (02) :129-143

[5]

BONDAREVA OS, 1986, KRISTALLOGRAFIYA+, V31, P233

[6]

Carrillo-Cabrera W, 1999, Z ANORG ALLG CHEM, V625, P183, DOI 10.1002/(SICI)1521-3749(199902)625:2<183::AID-ZAAC183>3.0.CO

[7]

2-6

[8] Axial divergence in a conventional X-ray powder diffractometer. I. Theoretical foundations [J].

Cheary, RW ;

Coelho, AA .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1998, 31 (pt 6) :851-861

[9] A FUNDAMENTAL PARAMETERS APPROACH TO X-RAY LINE-PROFILE FITTING [J].

CHEARY, RW ;

COELHO, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1992, 25 (pt 2) :109-121

[10] STRUCTURE OF BROMAPATITE AND THE RADIUS OF THE BROMIDE ION [J].

ELLIOTT, JC ;

DYKES, E ;

MACKIE, PE .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1981, 37 (FEB) :435-438

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