Environmental speciation of actinides

K Maher, JR Bargar, GE Brown Jr - Inorganic chemistry, 2013 - ACS Publications
Although minor in abundance in Earth's crust (U, 2–4 ppm; Th, 10–15 ppm) and in seawater
(U, 0.003 ppm; Th, 0.0007 ppm), light actinides (Th, Pa, U, Np, Pu, Am, and Cm) are …

Mineral–water interface reactions of actinides

H Geckeis, J Lützenkirchen, R Polly, T Rabung… - Chemical …, 2013 - ACS Publications
Reactions of the light actinide ions (Th to Cm) at the mineral− aqueous solution interface
have attracted much attention during recent years. Initially research was mainly driven by the …

Recent advances in aqueous actinide chemistry and thermodynamics

M Altmaier, X Gaona, T Fanghänel - Chemical reviews, 2013 - ACS Publications
This Review presents an overview of recent advances in aqueous actinide chemistry and
thermodynamics. It addresses actinides from thorium to curium and covers three main areas …

Antioxidant technology for durability enhancement in polymer electrolyte membranes for fuel cell applications

T Kwon, Y Lim, J Cho, R Lawler, BJ Min… - Materials Today, 2022 - Elsevier
While polymer electrolyte membrane fuel cells (PEMFCs) have surged in popularity due to
their low environmental impact and high efficiency, their susceptibility to degradation by in …

Solubility of nanocrystalline cerium dioxide: Experimental data and thermodynamic modeling

TV Plakhova, AY Romanchuk, SN Yakunin… - The Journal of …, 2016 - ACS Publications
Ultrafine 5 nm ceria isotropic nanoparticles were prepared using the rapid chemical
precipitation approach from cerium (III) nitrate and ammonium hydroxide aqueous solutions …

The INE-Beamline for actinide science at ANKA

J Rothe, S Butorin, K Dardenne, MA Denecke… - Review of scientific …, 2012 - pubs.aip.org
Since its inauguration in 2005, the INE-Beamline for actinide research at the synchrotron
source ANKA (KIT North Campus) provides dedicated instrumentation for x-ray …

Oxidation state and local structure of plutonium reacted with magnetite, mackinawite, and chukanovite

R Kirsch, D Fellhauer, M Altmaier, V Neck… - … science & technology, 2011 - ACS Publications
Due to their redox reactivity, surface sorption characteristics, and ubiquity as corrosion
products or as minerals in natural sediments, iron (II)-bearing minerals control to a large …

Co-crystallization of plutonium (III) and plutonium (IV) diglycolamides with Pu (III) and Pu (IV) hexanitrato anions: a route to redox variants of [puIII, IV (DGA) 3][puIII, IV …

BM Rotermund, JM Sperling, GP Horne… - Inorganic …, 2023 - ACS Publications
N, N, N′, N'-tetramethyl diglycolamide (TMDGA), a methylated variant of the diglycolamide
extractants being proposed as curium holdback reagents in advanced used nuclear fuel …

Plutonium mobility and reactivity in a heterogeneous clay rock barrier accented by synchrotron-based microscopic chemical imaging

U Kaplan, S Amayri, J Drebert, D Grolimund… - Scientific Reports, 2024 - nature.com
The long-term safe disposal of radioactive waste corresponds to a challenging responsibility
of present societies. Within deep geological waste disposal concepts, host rocks correspond …

Colloid-borne forms of tetravalent actinides: a brief review

H Zänker, C Hennig - Journal of contaminant hydrology, 2014 - Elsevier
Abstract Tetravalent actinides, An (IV), are usually assumed to be little mobile in near-neutral
environmental waters because of their low solubility. However, there are certain …