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Yunfei Xi

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TOP 3
Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti; Martina Beganovic
SEM-EDX, Raman and infrared spectroscopic characterization of the phosphate mineral frondelite (Mn(2+))(Fe(3+))4(PO4)3(OH)5.
Ray L Frost; Andrés López; Ricardo Scholz; Yunfei Xi; Amanda Granja
Infrared and Raman spectroscopic characterisation of the sulphate mineral creedite - Ca3Al2SO4(F,OH)·2H2O - and in comparison with the alums.
Ray L Frost; Ricardo Scholz; Yunfei Xi; Laura Frota Campos Horta
The phosphate mineral arrojadite-(KFe) and its spectroscopic characterization.

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2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti; Martina Beganovic
SEM-EDX, Raman and infrared spectroscopic characterization of the phosphate mineral frondelite (Mn(2+))(Fe(3+))4(PO4)3(OH)5.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;110():7-13.
2013: Ray L Frost; Andrés López; Ricardo Scholz; Yunfei Xi; Amanda Granja
Infrared and Raman spectroscopic characterisation of the sulphate mineral creedite - Ca3Al2SO4(F,OH)·2H2O - and in comparison with the alums.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;109():201-5.
2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Laura Frota Campos Horta
The phosphate mineral arrojadite-(KFe) and its spectroscopic characterization.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;109():138-45.
2013: Ray L Frost; Yunfei Xi; Ricardo Scholz
A vibrational spectroscopic study of the phosphate mineral cyrilovite Na(Fe3+)3(PO4)2(OH)4·2(H2O) and in comparison with wardite.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;108():244-50.
2013: Jirí Cejka; Sara J Couperthwaite; Ivana Jebavá; Jiří Sejkora; Yunfei Xi; Ray L Frost
A Raman spectroscopic study of the basic carbonate mineral callaghanite Cu2Mg2(CO3)(OH)6·2H2O.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;108():171-6.
2013: Ray L Frost; Martina Beganovic; Fernanda Maria Belotti; Yunfei Xi; Ricardo Scholz
Vibrational spectroscopy of the phosphate mineral lazulite--(Mg, Fe)Al2(PO4)2·(OH)2 found in the Minas Gerais, Brazil.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;107():241-7.
2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda Maria Belotti; Andres Lopez
Infrared and Raman spectroscopic characterization of the phosphate mineral fairfieldite--Ca2(Mn2+,Fe2+)2(PO4)2·2(H2O).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;106():216-23.
2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti
Vibrational spectroscopic characterization of the phosphate mineral bermanite-Mn2+Mn2(3+)(PO4)2(OH)2·4(H2O).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;105():359-64.
2013: Ray L Frost; Ross E Pogson; Yunfei Xi; Ricardo Scholz
A vibrational spectroscopic study of philipsbornite PbAl₃(AsO₄)₂(OH)₅⋅H₂O-molecular structural implications and relationship to the crandallite subgroup arsenates.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;104():257-61.
2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti; Luiz Alberto Dias Menezes Filho
A vibrational spectroscopic study of the phosphate mineral zanazziite - Ca₂(MgFe²⁺)(MgFe²⁺Al)₄Be₄(PO₄)₆⋅6(H₂O).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;104():250-6.
2013: Ray L Frost; Yunfei Xi
Vibrational spectroscopy of the borate mineral henmilite Ca₂Cu[B(OH)₄]₂(OH)₄.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;103():356-60.
2013: Ray L Frost; Yunfei Xi
Vibrational spectroscopy of the borate mineral kotoite Mg₃(BO₃)₂.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;103():151-5.
2013: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti
Vibrational spectroscopic characterization of the phosphate mineral ludlamite (Fe,Mn,Mg)₃(PO₄)₂⋅4H₂O - a mineral found in lithium bearing pegmatites.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;103():143-50.
2013: Ray L Frost; Sara J Palmer; Jiří Sejkora; Yunfei Xi; Jirí Cejka; Jakub Plášil
Raman spectroscopic study of the hydroxy-phosphate mineral plumbogummite PbAl₃(PO₄)₂(OH,H₂O)₆.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013;103():431-4.
2012: Ray L Frost; Ricardo Scholz; Yunfei Xi; Fernanda M Belotti; Luiz Alberto Dias Menezes Filho
Raman and infrared spectroscopic characterization of beryllonite, a sodium and beryllium phosphate mineral - implications for mineral collectors.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;97():1058-62.
2012: Ray L Frost; Yunfei Xi; Ricardo Scholz
Assessment of the molecular structure of the borate mineral boracite Mg3B7O13Cl using vibrational spectroscopy.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;96():946-51.
2012: Ray L Frost; Yunfei Xi
The borate mineral jeremejevite Al6(BO3)5(F,OH)3--a vibrational spectroscopic study.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;96():831-6.
2012: Ray L Frost; Yunfei Xi
Assessment of the molecular structure of the borate mineral sakhaite Ca12Mg4(BO3)7(CO3)4Cl(OH)2·H2O using vibrational spectroscopy.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;96():611-6.
2012: Ray L Frost; Yunfei Xi
Raman spectroscopy of the borate mineral ameghinite NaB3O3(OH)4.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;96():89-94.
2012: Ray L Frost; Yunfei Xi
Vibrational spectroscopic study of the minerals cavansite and pentagonite Ca(V⁴+O)Si₄O10·4H₂O.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;95():263-9.
2012: Ray L Frost; Yunfei Xi; Sara J Couperthwaite
Vibrational spectroscopic study of multianion mineral clinotyrolite Ca₂Cu9[(As,S)O₄]₄(OH)10·10(H₂O).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;95():258-62.
2012: Ray L Frost; Yunfei Xi
Vibrational spectroscopic study of the mineral creaseyite Cu2Pb2(Fe,Al)2(Si5O17)·6H2O - A zeolite mineral?
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;94():6-11.
2012: Ray L Frost; Sara J Palmer; Yunfei Xi; Ross E Pogson
Identification of montgomeryite mineral [Ca4MgAl4(PO4)6·(OH)4·12H2O] found in the Jenolan Caves-Australia.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;94():1-5.
2012: Ray L Frost; Yunfei Xi
A vibrational spectroscopic study of the phosphate mineral Wardite NaAl₃(PO₄)₂(OH)₄·2(H₂O).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;93():155-63.
2012: Ray L Frost; Sara J Palmer; Yunfei Xi
Is the mineral borickyite (Ca,Mg)(Fe3+,Al)4(PO4,SO4,CO3)(OH)(8)·3-7.5H2O the same as delvauxite CaFe4(3+)(PO4,SO4)2(OH)(8)·4-6H2O?
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;92():377-81.
2012: Ray L Frost; Yunfei Xi
Vibrational spectroscopy and solubility study of the mineral stringhamite CaCuSiO₄·H₂O.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;91():324-8.
2012: Ray L Frost; Yunfei Xi
Whelanite Ca₅Cu₂(OH)₂CO₃,Si₆O₁₇·4H₂O--a vibrational spectroscopic study.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;91():319-23.
2012: Ray L Frost; Yunfei Xi
A vibrational spectroscopic study of planchéite Cu₈Si₈O₂₂(OH)₄·H₂O.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;91():314-8.
2012: Ray L Frost; Yunfei Xi; Ross E Pogson
Raman spectroscopic study of the mineral arsenogorceixite BaAl₃AsO₃(OH)(AsO₄,PO₄)(OH,F)₆.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;91():301-6.
2012: Ray L Frost; Yunfei Xi; Sara J Palmer
Raman spectroscopy of the multianion mineral gartrellite-PbCu(Fe3+,Cu)(AsO4)2(OH,H2O)2.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;89():93-8.
2012: Ray L Frost; Yunfei Xi
Vibrational spectroscopic study of the copper silicate mineral kinoite Ca2Cu2Si3O10(OH)4.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;89():88-92.
2012: Ray L Frost; Graeme J Millar; Keqin Tan; Yunfei Xi; Sara J Palmer
Vibrational spectroscopic study of the mineral pitticite Fe, AsO4, SO4, H2O.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2012;85(1):173-8.
2011: Ray L Frost; Graeme J Millar; Sara J Palmer; Keqin Tan; Yunfei Xi; Ross E Pogson
Vibrational spectroscopy of synthetic stercorite H(NH4)Na(PO4)·4H2O--a comparison with the natural cave mineral.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;84(1):269-74.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi
Vibrational spectroscopy of the multi-anion mineral zykaite Fe4(AsO4)(SO4)(OH)·15H2O-implications for arsenate removal.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;83(1):444-8.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi
Raman spectroscopy of the multi anion mineral arsentsumebite Pb2Cu(AsO4)(SO4)(OH) and in comparison with tsumebite Pb2Cu(PO4)(SO4)(OH).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;83(1):449-52.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi; Keqin Tan
Raman spectroscopy of the multi-anion mineral mallestigite Pb3Sb(5+)(SO4)(AsO4)(OH)6·3H2O: a mineral of archaeological significance.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;83(1):432-6.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi; Ross E Pogson
Vibrational spectroscopic analysis of taranakite (K,NH4)Al3(PO4)3(OH)·9(H2O) from the Jenolan Caves, Australia.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;83(1):106-11.
2011: Ray L Frost; Yunfei Xi; Sara J Palmer
The structure of the mineral leogangite Cu10(OH)6(SO4)(AsO4)4·8H2O--implications for arsenic accumulation and removal.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;82(1):221-7.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi; Ross Pogson
Vibrational spectroscopic analysis of the mineral crandallite CaAl3(PO4)2(OH)5·(H2O) from the Jenolan Caves, Australia.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;82(1):461-6.
2011: Ray L Frost; Sara J Palmer; Yunfei Xi
A Raman spectroscopic study of the mono-hydrogen phosphate mineral dorfmanite Na2(PO3OH)·2H2O and in comparison with brushite.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011;82(1):132-6.
2010: Ray L Frost; Yunfei Xi; Hongping He
Synthesis, characterization of palygorskite supported zero-valent iron and its application for methylene blue adsorption.
Journal of colloid and interface science 2010;341(1):153-61.
2008: Ray L Frost; Qin Zhou; Hongping He; Yunfei Xi
An infrared study of adsorption of para-nitrophenol on mono-, di- and tri-alkyl surfactant intercalated organoclays.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2008;69(1):239-44.
2007: Yunfei Xi; Qin Zhou; Ray L Frost; Hongping He
Thermal stability of octadecyltrimethylammonium bromide modified montmorillonite organoclay.
Journal of colloid and interface science 2007;311(2):347-53.
2007: Onuma Carmody; Ray Frost; Yunfei Xi; Serge Kokot
Adsorption of hydrocarbons on organo-clays--implications for oil spill remediation.
Journal of colloid and interface science 2007;305(1):17-24.
2007: Yunfei Xi; Ray L Frost; Hongping He
Modification of the surfaces of Wyoming montmorillonite by the cationic surfactants alkyl trimethyl, dialkyl dimethyl, and trialkyl methyl ammonium bromides.
Journal of colloid and interface science 2007;305(1):150-8.
2006: Huaiyong Zhu; Zhanfeng Zheng; Xueping Gao; Yining Huang; Zhimin Yan; Jin Zou; Hongming Yin; Qingdi Zou; Scott H Kable; Jincai Zhao; Yunfei Xi; Wayde Martens; Ray L Frost
Structural evolution in a hydrothermal reaction between Nb2O5 and NaOH solution: from Nb2O5 grains to microporous Na2Nb2O6.2/3H2O fibers and NaNbO3 cubes.
Journal of the American Chemical Society 2006;128(7):2373-84.
2005: Yunfei Xi; Ray L Frost; Hongping He; Theo Kloprogge; Thor Bostrom
Modification of Wyoming montmorillonite surfaces using a cationic surfactant.
Langmuir : the ACS journal of surfaces and colloids 2005;21(19):8675-80.
2005: Yunfei Xi; Zhe Ding; Hongping He; Ray L Frost
Infrared spectroscopy of organoclays synthesized with the surfactant octadecyltrimethylammonium bromide.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2005;61(3):515-25.
2004: Yunfei Xi; Zhe Ding; Hongping He; Ray L Frost
Structure of organoclays--an X-ray diffraction and thermogravimetric analysis study.
Journal of colloid and interface science 2004;277(1):116-20.