Results 31 to 40 of about 2,449 (244)
Small, Volume 17, Issue 36, September 9, 2021., 2021 Ionometallurgy step‐electrodeposition can allow separate deposition of metals with sufficiently distinct electrochemical potential from mixtures of ZnO, PbO, and MgO dissolved in betainium bis((trifluoromethyl)sulfonyl)imide ([Hbet][NTf2]) to a large extend. Zinc can also be deposited on 3D copper foam (Zn/3DCu) to directly assemble a high‐voltage zinc‐
Peng Chen +5 more
wiley +1 more source
Synthesis, crystal structure and structure–property relations of strontium orthocarbonate, Sr2CO4
Acta Crystallographica Section B, Volume 77, Issue 1, Page 131-137, February 2021., 2021 A new orthocarbonate, Sr2CO4, was synthesized under extreme pressure and temperature conditions of 92 GPa and 2500 K, respectively. The crystal structure of the compound s fully characterized in situ by synchrotron single‐crystal X‐ray diffraction and DFT calculations were employed to provide insight into its equation of state, Raman and IR spectra ...
Dominique Laniel +10 more
wiley +1 more source
Evidence-Based Complementary and Alternative Medicine, Volume 2021, Issue 1, 2021., 2021 Background and Objective. Tibetan medicine is one of the earliest‐known traditional medicines. This study aimed to evaluate the antioxidant, cytotoxic, and antibacterial potential of ethanolic extracts of nine common Tibetan formulations. Materials and Methods.
Madan Dhakal +5 more
wiley +1 more source
Thermodynamic Description of Oxidized Zinc Minerals and Comparative Analysis of Their Reactivity
Chemical Engineering Transactions, 2021 Due to depletion of sulfide zinc ores, the problem of involvement of economically significant oxidized zinc ores into the treatment is a vital task. In this article, the thermodynamic functions have been considered and determined for many oxidized zinc ...
Raigul Ramazanova +5 more
doaj +1 more source
Zinc K-edge XANES spectroscopy of mineral and organic standards. [PDF]
J Synchrotron Radiat, 2019 Zinc K‐edge XANES reference standards of zinc mineral samples and organic compounds are presented.Zinc K‐edge X‐ray absorption near‐edge (XANES) spectroscopy was conducted on 40 zinc mineral samples and organic compounds. The K‐edge position varied from 9660.5 to 9666.0 eV and a variety of distinctive peaks at higher post‐edge energies were exhibited ...
Castorina E +4 more
europepmc +2 more sources
International Journal of Mining Science and Technology, 2023 Copper ions (Cu2+) are usually added to activate the sulfidized surface of zinc oxide minerals to enhance xanthate attachment using sulfidization xanthate flotation technology.
Wenjuan Zhao +4 more
doaj +1 more source
Raman spectroscopy of smithsonite [PDF]
Journal of Raman Spectroscopy, 2007 AbstractRaman spectroscopy at both 298 and 77 K has been used to study a series of selected natural smithsonites from different origins. An intense sharp band at 1092 cm−1 is assigned to the CO32− symmetric stretching vibration. Impurities of hydrozincite are identified by a band around 1060 cm−1.
Frost, Ray, Hales, Matt, Wain, Daria
openaire +2 more sources
Journal of Economic Geology, 2023 The Tangedozdan area is located in the west of Isfahan province and 25 km northeast of Fereydounshahr. Structurally, this area is located in the Sanandaj- Sirjan zone. The rock units include greenish volcanic rocks, lime-sandstone, limestone to dolomitic-
Behrooz Amiri, Seyed Vahid Shahrokhi
doaj +1 more source
Synthesis and vibrational spectroscopic characterisation of synthetic hydrozincite and smithsonite [PDF]
, 2007 Hydrozincite and smithsonite were synthesised by controlling the partial pressure of CO2 . Previous crystallographic studies concluded that the structure of hydrozincite was a simple one.
Frost, Raymond, Hales, Matthew
core +2 more sources
Critical elements in nonsulphide Zn deposits: A reanalysis of the Kabwe Zn-Pb ores (central Zambia) [PDF]
, 2018 The Kabwe Zn-Pb deposit (central Zambia) consists of a cluster of mixed sulfide and non-sulfide orebodies. The sulfide ores comprise sphalerite, galena, pyrite, chalcopyrite and accessory Ge-sulfides (±Ga and In).
Boyce, A. J. +5 more
core +3 more sources