Crude copper with a high content of impurities derived from secondary raw materials, known as black-copper, cannot be used in the conventional electrorefining process because passivation. The current industrial for which involves combination high-temperature acid dissolution under pressure, and subsequent electrowinning, results power consumption. In this study, basket electrolysis method was i...

Single crystal copper oxide nanoplatelets with a high percentage of {001} facets were synthesized by a facile hydrothermal approach. The as-prepared materials were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and high resolution transmission microscopy. Via density functional theory calculations, it was found that the ...

The main objective of this paper is to study the performance of the various combinations of electrodes which plays an important role in the microbial fuel cells for the generation of electricity. The present work is an experimented investigation concerned with selection of the electrodes for the best performance of a microbial fuel cell. The various combinations of anode/cathode materials like ...

Copper matte converting is an essential process in copper pyrometallurgy. Replacing traditional batch Peirce–Smith converters (PSCs), continuous becoming a new trend. In this work, thermodynamic modeling of the was carried out under actual production conditions. There were five phases process: matte, copper, Cu2O, slag, and gas. To directly produce anode divided into oxidation period reduction ...

A previously developed unified model of a tungsten-inert gas (TIG) microarc has been extended to take into account the melting anode made copper and release atoms due its evaporation. The enter plasma become excited ionized. presence ions can strongly change parameters. further includes states collisional radiative processes between them. Predictions parameters in species are presented discussed.

Five strains of type III pneumococcus have been shown to possess wide capsular slime layers during the logarithmic phase of growth in serum broth. The slime layer stains metachromatically with methylene blue and can be visualized under the electron microscope as a fuzzy halo which extends well beyond the surace of the capsule proper and causes centrifugates of the organism to be of extremely la...

Despite the enormous efforts devoted to high-performance lithium-ion batteries (LIBs), the present state-of-the-art LIBs cannot meet the ever-increasing demands. With high theoretical capacity, fast ionic conductivity, and suitable charge/discharge plateaus, Li3VO4 shows great potential as the anode material for LIBs. However, it suffers from poor electronic conductivity. In this work, we prese...