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Sulfur K-edge spectra of chalcopyrite leaching with mixed thermophilic archaea using synchrotron radiation at BSRF:Besides the features of chalcopyrite in Fig. B).The research provides the scientific community clues to promote the understanding of the synergistic effect of the thermophiles as well as bioleaching mechanism by the mixed thermophilic culture,and to devise an efficient way to enhance the yield of cha...

The reduction of chalcopyrite to bornite in 0.1 to-0.1 V,and it is the initial and rate-limited step of the successive reduction of chalcopyrite. When the applied potential was negative than-0.5 V,the reduction of the remaining chalcopyrite and chalcocite on the electrode surface to elemental copper took place in this negative potential 。 The results confirmed the formation of bornite and chalcocite during chalco...

Hg-free lamp is a green environmental-protective lighting energy now due to not containing harmful mercury vapor to people. In recent years,much of the investigation on this is being carried out. A team from Laboratory of Function and Environment Materials in School of Physical Science and Technology of Lanzhou University has carried out much investigation on this subject,and a novel white-emitting luminescent mat...

High-pressure X-ray diffraction experiments were carried out using a synchrotron X-ray source(λ=0.6199□□)of the 4W2 High-Pressure Station of Beijing Synchrotron Radiation Facility(BSRF).A phase transition from an initial fluorite-type structure to aα-PbCl2 phase in CeO2 nano-octahedrons has been observed at above 33 GPa. Further analysis shows that the lower compressibility of the exposed(111)planes in the CeO...
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