Results 61 to 70 of about 10,252 (169)
Supernormal enrichment of cadmium in sphalerite via coupled dissolution-reprecipitation process
Communications Earth & Environment, 2023 Supernormal enrichment of cadmium in sphalerite is frequently observed in some sedimentary-hosted zinc-lead deposits, although related fluid process remains unconstrained.
Hongyu Duan +4 more
doaj +1 more source
Rotational Anisotropy Raman Spectrometer for High‐Sensitivity Crystallographic Symmetry Analysis
Laser &Photonics Reviews, EarlyView.We introduce rotational‐anisotropy Raman spectroscopy, an enhanced scheme that overcomes the limitations of traditional polarization‐resolved Raman techniques. This method reveals previously inaccessible phonon symmetries and resolves directional anisotropy of phonon‐polaritons in benchmark crystals, establishing a powerful new tool for characterizing ...
Di Cheng +4 more
wiley +1 more source
Formation of hydrogen peroxide by sphalerite
, 2013 Formation of hydrogen peroxide (H2O2), an oxidizing agent stronger than oxygen, by sphalerite ((Zn, Fe) S) was examined during its grinding process.
Javadi, Alireza,, Kota, Hanumantha Rao,
core +1 more source
Germanium-rich sphalerite in two Peruvian Mississippi Valley-type deposits
, 2022 International audienceGermanium is a critical raw material in increasing demand. Mississippi Valley-type (MVT) deposits represent an important source of Ge. This research provides new textural and compositional data of sphalerite from the San Vicente and
Rosas, Silvia +11 more
core +3 more sources
PhotoMat, EarlyView.This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li +4 more
wiley +1 more source
Impact of gypsum supersaturated solution on the flotation of sphalerite [PDF]
, 2013 Gypsum supersaturation in process water is known to have detrimental effects on flotation performance of sulphide minerals. The motivation of this research is to develop a better understanding of the impact of gypsum supersaturation in process water on ...
Deng, Meijiao
core +1 more source
Photovoltaic Effect in a III‐IV‐V Compound Semiconductor
Progress in Photovoltaics: Research and Applications, EarlyView.A large reduction of the GaAs band gap is obtained with incorporation of 6.5% Ge during epitaxy without introducing extended defects or composition inhomogeneity. Heterojunction solar cell devices were fabricated with 0.76‐V open circuit voltage and an internal quantum efficiency above 40% at energies below the bandgap of the GaAs emitter.
José M. Ripalda +13 more
wiley +1 more source
Acta Crystallographica Section B, EarlyView.Of 464 Inorganic Crystal Structure Database (ICSD) structures from 1913 to 1929, the vast majority are structurally sound, but a small number carry genuine topological errors whose corrective information exists in the database yet is invisible to automated queries.
Peter Gross, Nik Reeves-McLaren
wiley +1 more source
Kinetics of Sphalerite Leaching by MnO2-KI Oxidation System in Sulfuric Acid
MetalsEfficient extraction of zinc from polymetallic concentrates is crucial for the metallurgical industry. Traditional leaching techniques often rely on strong oxidizing agents, which can be wasteful and environmentally harmful.
Mladen Bugarčić +6 more
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT New analytical data of the so‐called Hemmoor buckets, a group of brass vessels from the Roman period of the 2nd to 3rd century ad that are widespread throughout central and eastern Europe, show considerable similarities with the polymetallic Cévennes ore deposits in south‐eastern France in terms of their geochemical characteristics and lead ...
Tobias B. Skowronek +5 more
wiley +1 more source