A5012091859- Radioactive element chemistry and processing
- Oxidative Organic Chemistry Reactions
- Nuclear Materials and Properties
- Lanthanide and Transition Metal Complexes
- Bioactive Compounds and Antitumor Agents
- Synthesis of Organic Compounds
- Radioactive contamination and transfer
- Synthesis and Biological Evaluation
- Catalysis for Biomass Conversion
- Glass properties and applications
- Catalysis and Hydrodesulfurization Studies
- Advancements in Battery Materials
- Synthesis and Catalytic Reactions
- Click Chemistry and Applications
- Synthesis and Reactions of Organic Compounds
- Coordination Chemistry and Organometallics
- History and advancements in chemistry
- Catalytic Processes in Materials Science
- Molten salt chemistry and electrochemical processes
- Agriculture, Soil, Plant Science
- Advanced Materials Characterization Techniques
- Chemical Synthesis and Characterization
- Organometallic Complex Synthesis and Catalysis
- Nuclear materials and radiation effects
- Layered Double Hydroxides Synthesis and Applications
Los Alamos National Laboratory
2021-2025
University of California, Santa Barbara
2018
Utah State University
1995-1996
Numerous technologies—with catalytic, therapeutic, and diagnostic applications—would benefit from improved chelation strategies for heavy alkaline earth elements: Ra 2+ , Ba Sr . Unfortunately, chelating these metals is challenging because of their large size weak polarizing power. We found 18-crown-6-tetracarboxylic acid ( H 4 COCO ) bound to form M(H x COCO) –2 Upon isolating radioactive 223 its parent radionuclides 227 Ac Th), reacted with the fully deprotonated 4− chelator generate...
Improvement of processes that utilize renewable feedstocks to produce chemicals ordinarily derived from fossil carbon is paramount creating environmentally sustainable chemical and fuel industries. Catalytic conversion biorefinery-derived ethanol via the Guerbet condensation has potential serve such a purpose. In this contribution, we demonstrate marked selectivity changes in over copper-doped porous metal oxide catalyst upon single exposure ppm quantities soluble chloride source. Without...
Modern molten salt reactor design and the techniques of electrorefining spent nuclear fuels require a better understanding chemical physical behavior lanthanide/actinide ions with different oxidation states dissolved in various solvent salts. The molecular structures dynamics that are driven by short-range interactions between solute cations anions long-range still unclear. In order to study structural change caused salts, we performed first-principles simulations salts extended X-ray...
Controlling structure and reactivity by manipulating the outer-coordination sphere around a given reagent represents longstanding challenge in chemistry. Despite advances toward solving this problem, it remains difficult to experimentally interrogate characterize impact. This work describes an alternative approach that quantifies effects. It shows how molten salt metal chlorides (MCln; M = K, Na, n 1; Ca, 2) provided excellent platforms for characterizing influence of cations (Mn+) on redox...
Actinide complexation from aqueous acetic acid/acetate buffered solutions is described. The number of water ligands was directly correlated with the acetate concentration and characterized by X-ray absorption optical spectroscopy.
Plutonium-based technologies would benefit if chemical hazards for purifying plutonium were reduced. One critical processing step where improvements could be impactful is the adjustment of oxidation-states during separations. This transformation often requires addition redox agents. Unfortunately, many agents used previously cannot today because their properties are deemed incompatible with modern day facilities and waste stream safety requirements. We demonstrated herein that photochemistry...
Historic perspectives describing f-elements as being redox "inactive" are fading. Researchers continue to discover new oxidation states that not inaccessible once assumed for actinides and lanthanides. Inspired by those contributions, we studied americium(III) in aqueous media under air using NaBiO3(s). We identified selective of Am3+(aq) AmO22+(aq) or AmO21+(aq) could be achieved changing the matrix identity. formed H3PO4(aq) (1 M) dilute HCl(aq) (0.1 M). These americyl products were stable...
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”