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Discovery and Characterization of a Metastable Cubic Interstitial Nickel-Carbon System with an Expanded Lattice.
ACS Nano
January 2025
Faculty III Process Sciences, Institute of Materials Science and Technology, Chair of Advanced Ceramic Materials, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany.
Metastable, , kinetically favored but thermodynamically not stable, interstitial solid solutions of carbon in iron are well-understood. Carbon can occupy the interstitial atoms of the host metal, altering its properties. Alloying of the host metal results in the stabilization of the FeC phases, widening its application.
View Article and Find Full Text PDFSynthesis and characterization of isotopically barcoded nickel, molybdenum, and tungsten taggants for intentional nuclear forensics.
Talanta
April 2025
Savannah River National Laboratory, Aiken, SC, 29808, USA. Electronic address:
Intentional nuclear forensics is a concept wherein the deliberate addition of benign and persistent material signatures to nuclear material can be used to reduce the time between the discovery of material outside of regulatory control and determination of its original provenance. One concept within intentional nuclear forensics involves the use of perturbed stable isotopes to generate unique isotope ratio "barcodes" to encode information (e.g.
View Article and Find Full Text PDFAssociation Between Serum Concentrations of (Certain) Metals and Type 2 Diabetes Mellitus.
J Clin Med
December 2024
Department of Correct, Clinical and Imaging Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland.
The findings regarding trace element concentrations in patients diagnosed with type 2 diabetes and healthy controls are inconsistent, and therefore, we determined to gather them in the form of a review to further indicate the need for more advanced knowledge development. In our study, we reviewed articles and studies that involved the topics of micronutrient and metal associations with the occurrence and development of type 2 diabetes. We mainly included works regarding human-based studies, but with limited research results, animal-based research was also taken into account.
View Article and Find Full Text PDFPolarity-Reversed Functionalization of Aliphatic Aldehydes via Divergent Nickel Hydride Catalysis.
Angew Chem Int Ed Engl
December 2024
State Key Laboratory of Coordination Chemistry, Engineering Research Center of Photoresist Materials, Ministry of Education, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, 210093, Nanjing, China.
Divergent catalysis represents an exciting frontier for unlocking molecular structural diversity and exploring new activation modes. Here, we report the unexpected discovery of polarity-reversed divergent activation and functionalization of aliphatic aldehydes, where enolizable aliphatic aldehydes are selectively activated by nickel hydride to form two distinct alkylnickel intermediates divergently. This mild and operationally simple process enables the transformation of a wide variety of readily available aliphatic aldehydes, along with alkyl or aryl electrophiles, into the corresponding secondary alcohols or more challenging deoxygenated alkanes with excellent chemoselectivity.
View Article and Find Full Text PDFBa/Ti MOF: A Versatile Heterogeneous Photoredox Catalyst for Visible-Light Metallaphotocatalysis.
Adv Mater
December 2024
KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
The field of sustainable heterogeneous catalysis is evolving rapidly, with a strong emphasis on developing catalysts that enhance efficiency. Among various heterogeneous photocatalysts, metal-organic frameworks (MOFs) have gained significant attention for their exceptional performance in photocatalytic reactions. In this context, contrary to the conventional homogeneous iridium or ruthenium-based photocatalysts, which face significant challenges in terms of availability, cost, scalability, and recyclability, a new Ba/Ti MOF (ACM-4) is developed as a heterogeneous catalyst that can mimic/outperform the conventional photocatalysts, offering a more sustainable solution for efficient chemical processes.
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