Reactivity difference between protolytic forms of some macrocyclic chromium(III) complexes in ligand substitution and electron transfer processes [PDF]
, 2010 The review provides insight into the mechanism of ligand substitution and electron transfer (from chromium( III) to iron(III)) by comparison of the reactivity of some tetraazamacrocyclic chromium(III) complexes in the conjugate acid-base forms.
Topolskia, Adrian +7 more
core +4 more sources
Investigation of electroless nickel undercoat for duplex nickel chromium electrodeposition onto aluminium and its alloys [PDF]
, 2009 A thesis submitted in partial fulfillment of the requirement of the University of Wolverhampton for the Degree of Master of Philosophy.The study investigates the deposition of a multilayer coating onto two aluminium alloys: Al 1050 and Al 6061.
Khan, Muhammad Enam
core +3 more sources
Chromium Cycling in Redox‐Stratified Basins Challenges δ53Cr Paleoredox Proxy Applications
Geophysical Research Letters, 2022 Chromium stable isotope composition (δ53Cr) is a promising tracer for redox conditions throughout Earth's history; however, the geochemical controls of δ53Cr have not been assessed in modern redox‐stratified basins.
David J. Janssen +10 more
doaj +1 more source
Chromium Isotope Systematics in Modern and Ancient Microbialites [PDF]
Minerals, 2020 Changes in stable chromium isotopes (denoted as δ53Cr) in ancient carbonate sediments are increasingly used to reconstruct the oxygenation history in Earth’s atmosphere and oceans through time. As a significant proportion of marine carbonate older than the Cambrian is microbially-mediated, the utility of δ53Cr values in ancient carbonates hinges on ...
Sylvie Bruggmann +4 more
openaire +4 more sources
Modeling the marine chromium cycle: new constraints on global-scale processes [PDF]
Biogeosciences, 2021 Chromium (Cr) and its isotopes hold great promise as a tracer of past oxygenation and marine biological activity due to the contrasted chemical properties of its two main oxidation states, Cr(III) and Cr(VI), and the associated isotope fractionation ...
F. Pöppelmeier +8 more
doaj +1 more source
A systematic look at chromium isotopes in modern shells – implications for paleo-environmental reconstructions [PDF]
Biogeosciences, 2018 The chromium isotope system (53Cr ∕ 52Cr, expressed as δ53Cr relative to NIST SRM 979) in marine biogenic and non-biogenic carbonates is currently being evaluated as a proxy for the redox state of the ocean.
R. Frei +4 more
doaj +1 more source
Ab Initio Phase Diagram of Chromium to 2.5 TPa
Applied Sciences, 2022 Chromium possesses remarkable physical properties such as hardness and corrosion resistance. Chromium is also a very important geophysical material as it is assumed that lighter Cr isotopes were dissolved in the Earth’s molten core during the planet’s ...
Samuel R. Baty +4 more
doaj +1 more source
Yankuang ceshi, 2019 BACKGROUND With the development of Multi-collector Thermal Ionization Mass Spectrometry (MC-TIMS) and Multi-collector Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS), Cr isotopes had been successfully measured at a high resolution.
SHI Kai +4 more
doaj +1 more source
Concentrator cell methodology in the regeneration and recycle of chromium etching solutions using membrane technology [PDF]
, 2006 The regeneration of chromium (VI) and the recovery of etched copper from chromium etching solutions by electrodialysis is improved by the addition of a concentrator cell, using ion exchange resins or activated carbon cloth as concentrator media, in the ...
Ganguli, B, Grimes, SM, Chaudhary, AJ
core +1 more source
Frontiers in Immunology, 2023 Reliable and sensitive characterization assays are important determinants of the successful clinical translation of immunotherapies. For the assessment of cytolytic potential, the chromium 51 (51Cr) release assay has long been considered the gold ...
Kiriakos Koukoulias +9 more
doaj +1 more source