Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Raman spectroscopic study of anhydrous and hydrous REE phosphates, oxides, and hydroxides

Journal Article · · Dalton Transactions
DOI:https://doi.org/10.1039/d4dt01086h· OSTI ID:2402993
 [1];  [2];  [2];  [3]
  1. New Mexico Institute of Mining and Technology, Socorro, NM (United States); New Mexico Bureau of Geology/New Mexico Institute of Mining and Technology
  2. New Mexico Institute of Mining and Technology, Socorro, NM (United States)
  3. Deutsches GeoForschungsZentrum GFZ, Potsdam (Germany); China University of Geosciences, Wuhan (China); University of Johannesburg (South Africa)

Rare earth elements (REE) include the lanthanides (La–Lu), Y, and Sc which are critical elements for the green energy transition. The REE show a decrease in ionic radii with increased atomic numbers, which results in a so-called lanthanide contraction systematically affecting crystal structures and mineral properties. Here we present a compilation of reference Raman spectra of ten REE sesquioxides (A-, B- and C-type), five REE hydroxides, eight xenotime-structured REE phosphate endmembers and two solid solutions, seven monazite-structured REE phosphate endmembers and two solid solutions and seven rhabdophane endmembers with up to five Ce1–xLREEx rhabdophane solid solutions (LREE = La–Gd). Raman mode assignment is based on a detailed literature review summarizing existing analytical work and theoretical calculations and systematic trends observed in this study by analyzing different REE-bearing solids. Here, the wavenumbers of the main REE-O Raman band systematically increase with decreasing ionic radii forming discrete linear trends within isostructural mineral groups, that can be used to estimate the REE-O mode in other solids with known REE-O coordination numbers. Photoluminescence using 266 nm, 532 nm and 633 nm excitation laser wavelengths for REE-bearing oxides, hydroxides, anhydrous and hydrous phosphates is also presented providing a new framework for identifying REE-phases in phosphate-bearing natural mineral deposits.

Research Organization:
New Mexico Institute of Mining and Technology, Socorro, NM (United States); New Mexico Bureau of Geology and Mineral Resources, Socorro, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
Grant/Contract Number:
SC0022269
OSTI ID:
2402993
Journal Information:
Dalton Transactions, Journal Name: Dalton Transactions Journal Issue: 23 Vol. 53; ISSN 1477-9226
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (73)

Raman spectra of the rare earth orthophosphates journal August 1981
Application of Raman spectroscopy for the identification of phosphate minerals from REE supergene deposit journal July 2021
Observation stimulated Raman scattering in nanocrystalline Sc2O3 ceramics journal October 2004
Raman spectra of lanthanide sesquioxide single crystals with A-type structure journal July 1979
Raman Spectra of La2O3Dispersed on γ-Al2O3 journal September 1998
Vibrational Spectroscopy of the C-Form of Yttrium Sesquioxide journal August 1995
The Principal Rare Earth Elements Deposits of the United States: A Summary of Domestic Deposits and a Global Perspective book January 2012
Synthesis, characterization and photoluminescent properties of rare-earth hydroxides and oxides nanorods by hydrothermal route journal November 2012
Factors affecting the Nd3+ (REE3+) luminescence of minerals journal May 2013
Multi-stage evolution of xenotime–(Y) from Písek pegmatites, Czech Republic: an electron probe micro-analysis and Raman spectroscopy study journal April 2016
Phase structure and vibrational spectra of rare-earth-oxide ceramics of Dy2(1−x)Tm2x O3 journal October 2011
Characterization of the preparation of Pd/SiO2 and Pd/La2O3 by laser Raman spectroscopy journal October 1984
Structural trends in the lanthanide trihydroxides journal January 1977
Bonding anomalies in the rare earth sesquioxides journal January 1987
Raman spectra of lanthanide sesquioxide single crystals: Correlation between A and B-type structures journal July 1981
Vibrational spectra of oxides with the C-type rare earth oxide structure journal March 1972
Vibrational spectra of crystals with the A-type rare earth oxide structure—I. La2O3 and Nd2O3 journal January 1979
Evidence of lanthanum–chromium mixed oxides formed in CrO /La2O3 model catalysts journal April 2003
Optimization of spectroscopic properties of Yb3+-doped refractory sesquioxides: cubic and monoclinic Gd2O3 journal May 2001
A Raman spectroscopic study of rare earth mixed oxides journal May 2000
Pressure effect on optical properties and structure stability of LaPO4:Eu3+ hollow spheres journal December 2010
Raman characterization and photoluminescence properties of La1-Tb PO4·nH2O and La1-Tb PO4 phosphor nanorods prepared by microwave-assisted hydrothermal synthesis journal October 2017
Laser-induced REE3+ photoluminescence of selected accessory minerals — An “advantageous artefact” in Raman spectroscopy journal November 2015
Global demand for rare earth resources and strategies for green mining journal October 2016
Raman characterisation of powder of cubic RE2O3 (RE=Nd, Gd, Dy, Tm, and Lu), Sc2O3 and Y2O3 journal April 2008
A simple method to prepare Ln(OH)3 (Ln=La, Sm, Tb, Eu, and Gd) nanorods using CTAB micelle solution and their room temperature photoluminescence properties journal February 2011
Non-resonant energy transfer from Eu3+ to Yb3+ in C-type and B-type (Eu1-Yb )2O3 nanocrystals journal November 2022
Photoluminescence and Raman study of the high-pressure behavior of monoclinic (Eu1-Yb )2O3 solid solution journal December 2023
Crystal chemistry of the monazite structure journal June 2011
Actinide solubility-controlling phases during the dissolution of phosphate ceramics journal May 2007
Probing structural homogeneity of La 1-x Gd x PO 4 monazite-type solid solutions by combined spectroscopic and computational studies journal April 2017
Rare earth phosphate powders RePO4·nH2O (Re=La, Ce or Y) II. Thermal behavior journal April 2004
Raman, XRD and microscopic investigations on CeO2–Lu2O3 and CeO2–Sc2O3 systems: A sub-solidus phase evolution study journal August 2008
Structural, vibrational, and thermochemical properties of the monazite-type solid solution La1–Pr PO4 journal January 2017
Vibrational spectra of monazite-type rare-earth orthophosphates journal November 2006
Raman and infrared spectroscopy of monazite-type ceramics used for nuclear waste conditioning journal April 2014
Monazite, rhabdophane, xenotime & churchite: Vibrational spectroscopy of gadolinium phosphate polymorphs journal December 2018
The structure of B-type Sm2O3. A powder neutron diffraction study using enriched 154Sm journal September 2011
Study of monazite under high pressure journal October 2010
The Raman OH stretching bands of liquid water journal November 2009
Crystal Chemistry and Thermodynamics of HREE (Er, Yb) Mixing in a Xenotime Solid Solution journal May 2022
Role of Surface Oxygen Vacancies and Lanthanide Contraction Phenomenon of Ln(OH) 3 (Ln = La, Pr, and Nd) in Sulfide-Mediated Photoelectrochemical Water Splitting journal June 2018
Monoclinic Form of the Rhabdophane Compounds: REEPO 4 ·0.667H 2 O journal September 2014
High-Pressure Structural Transitions of Sc 2 O 3 by X-ray Diffraction, Raman Spectra, and Ab Initio Calculations journal September 2009
Raman Spectroscopy of Minerals journal October 1969
Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles journal January 2019
Facile synthesis of electrostatically anchored Nd(OH)3 nanorods onto graphene nanosheets as a high capacitance electrode material for supercapacitors journal January 2018
Crystal Structures of a Series of Rare Earth Phosphates journal October 1948
Raman spectra of R 2 O 3 ( R —rare earth) sesquioxides with C-type bixbyite crystal structure: A comparative study journal September 2014
Photoluminescence and Raman spectroscopy studies of Eu3+-doped rutile TiO2nanocrystals at high pressures journal September 2012
The vibrational spectrum of zircon (zrsio 4 ) journal February 1971
The vibrational spectra and structures of rare earth oxides in the A modification journal June 1972
Intensities and asymmetries of electronic Raman scattering inErPO4andTmPO4 journal June 1985
Vibrational dynamics of YPO 4 and ScPO 4 single crystals: An integrated study by polarized Raman spectroscopy and first-principles calculations journal June 2011
Raman spectroscopy and lattice dynamical calculations of Sc 2 O 3 single crystals journal March 2013
Fityk : a general-purpose peak fitting program journal September 2010
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
In situ Raman spectroscopy of pressure‐induced phase transformations in polycrystalline Tb PO 4 , Dy PO 4 , and Gd x Dy (1− x ) PO 4 journal January 2018
Investigation of Nd3+ incorporation in Ce‐rhabdophane: Insight from structural flexibility and occupation mechanism journal March 2022
Raman and Fluorescence Spectroscopy of CeO 2 , Er 2 O 3 , Nd 2 O 3 , Tm 2 O 3 , Yb 2 O 3 , La 2 O 3 , and Tb 4 O 7 journal January 2015
Phonon and Electronic Raman Spectra of Cubic Rare-Earth Oxides and Isomorphous Yttrium Oxide* journal August 1970
Raman and Resonance Raman Spectroscopy of Selected Rare-Earth Sesquioxides journal November 1984
Database of Standard Raman Spectra of Minerals and Related Inorganic Crystals journal August 1994
The crystal structure of cubic C-type samarium sesquioxide, Sm2O3 journal May 2019
Standard Thermodynamic Properties and Heat Capacity Equations for Rare Earth Element Hydroxides journal June 1998
Crystal chemistry of the monazite and xenotime structures journal February 1995
Synthesis of REE and Y phosphates by Pb-free flux methods and their utilization as standards for electron microprobe analysis and in design of monazite chemical U-Th-Pb dating protocol journal October 2004
Raman investigation of H2O molecule and hydroxyl groups in the channels of hemimorphite journal August 2006
Versatile Monazite: Resolving geological records and solving challenges in materials science: Monazite as a promising long-term radioactive waste matrix: Benefits of high-structural flexibility and chemical durability journal May 2013
A Spectroscopic Investigation of Eu3+ Incorporation in LnPO4 (Ln = Tb, Gd1-xLux, X = 0.3, 0.5, 0.7, 1) Ceramics journal February 2019
Evidence for Lattice Strain and Non-ideal Behavior in the (La1−xEux)PO4 Solid Solution from X-ray Diffraction and Vibrational Spectroscopy journal June 2016
Micro-Raman—A Tool for the Heavy Mineral Analysis of Gold Placer-Type Deposits (Pianu Valley, Romania) journal November 2020
Global Potential of Rare Earth Resources and Rare Earth Demand from Clean Technologies journal October 2017

Similar Records

Linear Correlations of Gibbs Free Energy of REE Phosphates (Monazite, Xenotime, and Rhabdophane) and Internally Consistent Binary Mixing Properties
Journal Article · Thu Mar 14 00:00:00 EDT 2024 · Minerals · OSTI ID:2323941

Fractionation of REE, U, and Th in natural ore-forming hydrothermal systems: Thermodynamic modeling
Journal Article · Wed Aug 22 00:00:00 EDT 2018 · Journal of Chemical Thermodynamics · OSTI ID:1479963

Crystal Chemistry and Thermodynamics of HREE (Er, Yb) Mixing in a Xenotime Solid Solution
Journal Article · Mon May 02 00:00:00 EDT 2022 · ACS Earth and Space Chemistry · OSTI ID:1878477