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Anomalous dissolution of metals and chemical corrosion [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
An overview is given of the anomalous behavior of some metals, in particular Fe and Cr, in acidic aqueous solutions during anodic dissolution. The anomaly is recognizable by the fact that during anodic dissolution more material dissolves than would be ...
Dražić Dragutin M., Popić Jovan P.
doaj   +4 more sources

Anomalous photoelectrochemical etching of undoped semiconductor surfaces [PDF]

open access: yesNature Communications
For more than 60 years, it has been widely accepted that the irradiance of the incoming light plays the most critical role in the etching effect of the photoelectrochemical etching process, which is built upon the underlying physics that photo-generated ...
Pan Peng   +8 more
doaj   +2 more sources

Unraveling the dynamics of conductive filaments in MoS2-based memristors by operando transmission electron microscopy [PDF]

open access: yesNature Communications
Advanced operando transmission electron microscopy (TEM) techniques enable the observation of nanoscale phenomena in electronic devices during operation.
Ke Ran   +6 more
doaj   +2 more sources

Refined weathering CO2 budget of the Tibetan Plateau strongly modulated by sulphide oxidation [PDF]

open access: yesNature Communications
Estimation of net CO2 consumption by weathering in orogen is complicated as high erosion rate promotes competing processes of CO2 consumption (silicate weathering) and releasing (sulfuric acid (H2SO4) dissolution of carbonate).
Wenjing Liu   +5 more
doaj   +2 more sources

Electrochemistry of active chromium, part III: Effects of temperature [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
It was shown that the temperature in the range 20 – 65 ºC has considerable effects on the electrochemical anodic dissolution of chromium in the active potential range as well as on the electrochemical hydrogen evolution reactions on bare and oxide ...
Popić Jovan P., Dražić Dragutin M.
doaj   +3 more sources

Electrochemistry of active chromium. Part IV. Dissolution of chromium in deaerated sulfuric acid [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
Chromium dissolution in aqueous sulfuric acid solutions in the pH range 0.5 –3 was studied electrochemically by the potentiostatic or very slow potentiodynamic method, and by the analyses of the Cr ion concentrations in the electrolyte formed during the ...
D. VASILJEVIC-RADOVIC   +3 more
doaj   +3 more sources

Potential impacts of chemical weathering on feldspar luminescence dating properties [PDF]

open access: yesGeochronology, 2023
Chemical weathering alters the chemical composition of mineral grains. As a result, trapped-charge dating signals of primary silicates may be progressively modified.
M. Bartz, J. Peña, S. Grand, G. E. King
doaj   +1 more source

Dissolution of chromium in sulfuric acid [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
By combining electrochemical corrosion rate measurements and spectrophotometric analysis of the electrolyte it was shown that at room temperature chromium dissolves in deaerated 0.1 M Na2SO4 + H2SO4 (pH 1) solution as Cr(II) and Cr(III) ions in he ratio ...
J. P. POPIC, D. M. DRAZIC
doaj   +3 more sources

Cavitation-assisted decontamination of yttria from graphite of different densities

open access: yesUltrasonics Sonochemistry, 2021
Yttria coated graphite crucibles are widely used to handle molten refractory and radioactive metals like uranium and plutonium. However, the coated layer suffers damages like cracking and peeling off owing to thermal cycles.
S. Lahiri   +4 more
doaj   +1 more source

Fabrication of Gastro-Floating Famotidine Tablets: Hydroxypropyl Methylcellulose-Based Semisolid Extrusion 3D Printing

open access: yesPharmaceutics, 2023
Semisolid extrusion (SSE) three-dimensional (3D) printing uses drug-loaded paste for the printing process, which is capable of constructing intricate 3D structures.
Hyun Seok Yang, Dong Wuk Kim
doaj   +1 more source

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