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Pertechnetate/perrhenate–capped Zr/Hf–Dihydroxide Dimers: Elucidating Zr–TcO4 Co–Mobility in the Nuclear Fuel Cycle

Journal Article · · Chemistry - A European Journal

Spent nuclear fuel contains heavy element fission products that must be separated for effective reprocessing for a safe and sustainable nuclear fuel cycle. 93Zr and 99Tc are high-yield fission products that co-transport in liquid-liquid extraction processes. Here we seek atomic-level information of this co-extraction process, as well as fundamental knowledge about ZrIV (and HfIV) aqueous speciation in the presence of topology-directing ligands such as pertechnetate (TcO4) and non-radioactive surrogate perrhenate (ReO4). In this context, we show that the flat tetrameric oxyhydroxyl-cluster [MIV4(OH)8(H2O)16]8+ (and related polymers) is dissociated by perrhenate/pertechnetate to yield isostructural dimers, M2(OH)2(XO4)6(H2O)6 • 3H2O (M=Zr/HfIV; X=Re/TcVII), elucidated by single-crystal X-ray diffraction. We used these model compounds to understand the pervasive 93Zr-99Tc coextraction with further speciation studies in water, nitric acid, and tetrabutylphosphate (TBP) -kerosene; where the latter two media are relevant to nuclear fuel reprocessing. SAXS (small angle X-ray scattering), compositional evaluation, and where experimentally feasible, ESI-MS (electrospray ionization mass spectrometry) showed that perrhenate/pertechnetate influence Zr/HfIV-speciation in water. Here, in Zr-XO4 solvent extraction studies to simulate fuel reprocessing, we provide evidence that TcO4 enhances extraction of ZrIV, and compositional analysis of the extracted metal-complexes (Zr-ReO4 study) is consistent with the crystallized ZrIV2(OH)2(ReVIIO4)6(H2O)6•dimer.

Research Organization:
University of Notre Dame, IN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); Murdock Charitable Trust
Grant/Contract Number:
NA0003763
OSTI ID:
2279027
Alternate ID(s):
OSTI ID: 2274837
Journal Information:
Chemistry - A European Journal, Journal Name: Chemistry - A European Journal Journal Issue: 10 Vol. 30; ISSN 0947-6539
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (61)

Amphoteric Aqueous Hafnium Cluster Chemistry journal April 2016
Discrete Hf 18 Metal‐oxo Cluster as a Heterogeneous Nanozyme for Site‐Specific Proteolysis journal March 2020
A Toroidal Zr 70 Oxysulfate Cluster and Its Diverse Packing Structures journal November 2020
Aqueous Isolation of 17-Nuclear Zr/Hf Oxide Clusters during the Hydrothermal Synthesis of ZrO 2 /HfO 2 journal September 2018
Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation journal February 2022
Structural Analysis of Zirconium Hydroxide Nitrate Monohydrates by X-Ray Powder Diffraction journal February 1997
X-ray diffraction investigation of some zirconium, hafnium and tetravalent cerium sulfates journal January 1972
Coextraction of pertechnetate and zirconium by tri-n-butyl phosphate journal March 1985
Mainstreaming inorganic metal-oxide resists for high-resolution lithography book January 2016
The forgotten chemistry of group(IV) metals: A survey on the synthesis, structure, and properties of discrete Zr(IV), Hf(IV), and Ti(IV) oxo clusters journal July 2021
A review of technetium and zirconium extraction into tributyl phosphate in the PUREX process journal May 2022
Countercation-Controlled Nuclearity of Zr/Hf Peroxo Oxalates journal August 2020
A Decade of UiO-66 Research: A Historic Review of Dynamic Structure, Synthesis Mechanisms, and Characterization Techniques of an Archetypal Metal–Organic Framework journal December 2019
Efficient Capture of Perrhenate and Pertechnetate by a Mesoporous Zr Metal–Organic Framework and Examination of Anion Binding Motifs journal January 2018
Radioactive Transition Metals for Imaging and Therapy journal September 2018
Differentiating Zr/Hf IV Aqueous Polyoxocation Chemistry with Peroxide Ligation journal January 2021
Structure, Properties, and Reactivity of Polyoxocationic Zirconium and Hafnium Clusters: A Computational Investigation journal March 2023
Elucidating Actinide–Pertechnetate and Actinide–Perrhenate Bonding via a Family of Th–TcO4 and Th–ReO4 Frameworks and Solutions journal June 2023
Intramolecular Re···O Nonvalent Interactions as a Stabilizer of the Polyoxorhenate(VII) journal August 2023
Modulated Hydrothermal Synthesis of UiO-66(Hf)-Type Metal–Organic Frameworks for Optimal Carbon Dioxide Separation journal January 2016
Structural Evolution of Aqueous Zirconium Acetate by Time-Resolved Small-Angle X-ray Scattering and Rheology journal May 2015
Theoretical Prediction of Rhenium Separation from Ammonium Perrhenate by Phonon–Photon Resonance Absorption journal February 2022
Chemistry of Technetium and Rhenium Species during Low-Level Radioactive Waste Vitrification journal May 1996
Solution and Solid-State Structural Chemistry of Actinide Hydrates and Their Hydrolysis and Condensation Products journal October 2012
Synthesis and characterization of bis(.mu.-hydroxo)tetraaquadiplutonium(IV) sulfate, Pu2(OH)2(SO4)3.4H2O, a novel compound containing hydrolyzed plutonium(IV) journal September 1982
Crystal structure of a complex basic zirconium sulfate journal December 1987
Spectroscopic Evidence for the Direct Coordination of the Pertechnetate Anion to the Uranyl Cation in [UO 2 (TcO 4 )(DPPMO 2 ) 2 ] + journal September 2004
The Crystal Structure of Zr 2 (OH) 2 (SO 4 ) 3 (H 2 O) 4 journal February 1966
Hafnium Sulfate Prenucleation Clusters and the Hf 18 Polyoxometalate Red Herring journal March 2014
Understanding the Role of Aqueous Solution Speciation and Its Application to the Directed Syntheses of Complex Oxidic Zr Chlorides and Sulfates journal September 2013
Zirconium(IV) Tetramer/Octamer Hydrolysis Equilibrium in Aqueous Hydrochloric Acid Solution journal January 1996
Oxo-Cluster-Based Zr/Hf IV Separation: Shedding Light on a 70-Year-Old Process journal February 2022
Single-Site Cobalt Catalysts at New Zr 82 -O) 82 -OH) 4 Metal-Organic Framework Nodes for Highly Active Hydrogenation of Alkenes, Imines, Carbonyls, and Heterocycles journal September 2016
Metal–Organic Nanosheets Formed via Defect-Mediated Transformation of a Hafnium Metal–Organic Framework journal April 2017
Single-Site Cobalt Catalysts at New Zr 123 -O) 83 -OH) 82 -OH) 6 Metal–Organic Framework Nodes for Highly Active Hydrogenation of Nitroarenes, Nitriles, and Isocyanides journal May 2017
Superactivity of MOF-808 toward Peptide Bond Hydrolysis journal April 2018
Zirconium-Formate Macrocycles and Supercage: Molecular Packing versus MOF-like Network for Water Vapor Sorption journal August 2018
Peroxide-Promoted Disassembly Reassembly of Zr-Polyoxocations journal September 2019
Syntheses and crystal structures of supramolecular compounds of tetranuclear ZrIVand HfIVaqua hydroxo complexes with macrocyclic cavitand cucurbituril journal January 2004
Water in minerals? A peak in the infrared journal June 1984
Destruction of chemical warfare agents using metal–organic frameworks journal March 2015
Grafting alkylamine in UiO-66 by charge-assisted coordination bonds for carbon dioxide capture from high-humidity flue gas journal January 2015
Applications of water stable metal–organic frameworks journal January 2016
The chemistry of PET imaging with zirconium-89 journal January 2018
Interplay between structural parameters and reactivity of Zr6-based MOFs as artificial proteases journal January 2020
Fatty acid capped, metal oxo clusters as the smallest conceivable nanocrystal prototypes journal January 2023
Coordination of pertechnetate [TcO4]? to actinides journal January 2004
The coordination of perrhenate and pertechnetate to thorium(iv) in the presence of phosphine oxide or phosphate ligands journal January 2006
Structure of the Aqueous Pertechnetate Ion by Raman and Infrared Spectroscopy. Raman and Infrared Spectra of Crystalline KTcO 4 , KReO 4 , Na 2 MoO 4 , Na 2 WO 4 , Na 2 MoO 4 ·2H 2 O, and Na 2 WO 4 ·2H 2 O journal July 1964
X-ray diffraction "fingerprinting" of DNA structure in solution for quantitative evaluation of molecular dynamics simulation journal February 2006
Detection of Polynuclear Zirconium Hydroxide Species in Aqueous Solution by Desktop ESI-MS journal December 2010
Structural determination of a highly stable metal-organic framework with possible application to interim radioactive waste scavenging: Hf-UiO-66 journal September 2012
OLEX2 : a complete structure solution, refinement and analysis program journal January 2009
Irena : tool suite for modeling and analysis of small-angle scattering journal February 2009
Approximations Leading to a Unified Exponential/Power-Law Approach to Small-Angle Scattering journal December 1995
A short history of SHELX journal December 2007
The crystal structure of zirconyl chloride octahydrate and zirconyl bromide octahydrate journal July 1956
Crystal structure refinement with SHELXL journal January 2015
Interaction of zirconium with pertechnetic acid in the course of extraction from nitric acid solutions with tributyl phosphate in diluent in the presence of uranyl nitrate at various temperatures and its mathematical description journal May 2015
Aqueous Reprocessing of Used Nuclear Fuel book August 2018
Electrospray Ionization Mass Spectrometry: A Technique to Access the Information beyond the Molecular Weight of the Analyte journal January 2012


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