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Title: Tracking nitrite's deviation from Stokes–Einstein predictions with pulsed field gradient 15N NMR spectroscopy

Journal Article · · ChemComm
DOI: https://doi.org/10.1039/d3cc04168a · OSTI ID:2216982

Predicting the behavior of oxyanions in radioactive waste stored at the Department of Energy legacy nuclear sites requires the development of novel analytical methods. This work demonstrates 15N pulsed field gradient nuclear magnetic resonance spectroscopy to quantify the diffusivity of nitrite. Experimental results, supported by molecular dynamics simulations, indicate that the diffusivity of free hydrated nitrite exceeds that of free hydrated sodium despite the greater hydrodynamic radius of nitrite. Investigations are underway to understand how the compositional and dynamical heterogeneities of the ion networks at high concentrations affect rheological and transport properties.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL); Energy Frontier Research Centers (EFRC) (United States). Interfacial Dynamics in Radioactive Environments and Materials (IDREAM)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE
Grant/Contract Number:
AC05-76RL01830; FWP 68932
OSTI ID:
2216982
Alternate ID(s):
OSTI ID: 2337910
Report Number(s):
PNNL-SA-189626
Journal Information:
ChemComm, Vol. 59, Issue 97; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (30)

Properties of aqueous nitrate and nitrite from x-ray absorption spectroscopy journal August 2015
Cation coordination polyhedra lead to multiple lengthscale organization in aqueous electrolytes journal January 2023
The interpretation of small molecule diffusion coefficients: Quantitative use of diffusion-ordered NMR spectroscopy journal April 2020
Viscosities and Densities of Concentrated Aqueous NaOH/NaAl(OH) 4 Mixtures at 25 °C journal May 2001
A Review of Sodium Nitrite Solubility in Water and Physical Properties of the Saturated Solutions journal July 2021
Salt Solubilities in Aqueous Solutions of NaNO 3 , NaNO 2 , NaCl, and NaOH: A Hofmeister-like Series for Understanding Alkaline Nuclear Waste journal November 2018
Ion hydration controls self-diffusion in multicomponent aqueous electrolyte solutions of NaNO2-NaOH-H2O journal August 2022
27 Al Pulsed Field Gradient, Diffusion–NMR Spectroscopy of Solvation Dynamics and Ion Pairing in Alkaline Aluminate Solutions journal October 2018
When spectroscopy fails: The measurement of ion pairing journal January 2006
A Pitzer Interaction Model for the NaNO 3 –NaNO 2 –NaOH–H 2 O System from 0 to 100 °C journal March 2015
Spin Diffusion Measurements: Spin Echoes in the Presence of a Time‐Dependent Field Gradient journal January 1965
Improving the Interpretation of Small Molecule Diffusion Coefficients journal February 2018
Hydroxide promotes ion pairing in the NaNO 2 –NaOH–H 2 O system journal January 2021
A method to apply Zavitsas' aqueous electrolyte model to multicomponent solutions and its equivalence to Zdanovskii's rule journal November 2021
A comparative study of the hydration of Na+ and K+ with refined polarizable model potentials journal April 2003
Hydration properties determining the reactivity of nitrite in aqueous solution journal January 2014
The Stejskal-Tanner equation generalized for any gradient shape-an overview of most pulse sequences measuring free diffusion journal March 2012
Diffusion ordered nuclear magnetic resonance spectroscopy: principles and applications journal May 1999
Ions’ motion in water journal May 2019
Rotation driven translational diffusion of polyatomic ions in water: A novel mechanism for breakdown of Stokes-Einstein relation journal April 2017
Determining polyhedral arrangements of atoms using PageRank journal June 2012
Pulsed Field Gradient Nuclear Magnetic Resonance and Diffusion Analysis in Battery Research journal November 2021
Direct Observation of N 2 Self-Diffusion in Zeolitic Adsorbents Using 15 N PFG NMR journal January 1996
Viscosities and Densities of Highly Concentrated Aqueous MOH Solutions (M + = Na + , K + , Li + , Cs + , (CH 3 ) 4 N + ) at 25.0 °C journal July 2000
27 Al NMR diffusometry of Al 13 Keggin nanoclusters journal October 2021
Rotational dynamics of polyatomic ions in aqueous solutions: From continuum model to mode-coupling theory, aided by computer simulations journal June 2018
Coupled jump rotational dynamics in aqueous nitrate solutions journal December 2016
Ion–ion interactions enhance aluminum solubility in alkaline suspensions of nano-gibbsite (α-Al(OH) 3 ) with sodium nitrite/nitrate journal January 2020
Pulsed field gradient nuclear magnetic resonance as a tool for studying drug delivery systems journal January 2003
Applications of NMR diffusion methods with emphasis on ion pairing in inorganic chemistry: a mini-review: Applications of NMR diffusion methods journal February 2016