Results 91 to 100 of about 151 (127)

Unveiling the role of inorganic nanoparticles in Earth's biochemical evolution through electron transfer dynamics. [PDF]

iScience
Huang XL.
europepmc   +1 more source

A conspicuous clay ovoid in Nakhla: evidence for subsurface hydrothermal alteration on Mars with implications for astrobiology. [PDF]

Astrobiology, 2014
Chatzitheodoridis E, Haigh S, Lyon I.
europepmc   +1 more source

Magnetic tests for magnetosome chains in Martian meteorite ALH84001. [PDF]

Proc Natl Acad Sci U S A, 2004
Weiss BP, Kim SS, Kirschvink JL, Kopp RE, Sankaran M, Kobayashi A, Komeili A.   +6 more
europepmc   +1 more source

Characterizing modulated structures with first-principles calculations: a unified superspace scheme of ordering in mullite. [PDF]

Acta Crystallogr A Found Adv, 2019
Klar PB, Etxebarria I, Madariaga G.
europepmc   +1 more source

Bioinspired greigite magnetic nanocrystals: chemical synthesis and biomedicine applications. [PDF]

Sci Rep, 2013
Feng M, Lu Y, Yang Y, Zhang M, Xu YJ, Gao HL, Dong L, Xu WP, Yu SH.   +8 more
europepmc   +1 more source

Oxidative potential (OP) and mineralogy of iron ore particulate matter at the Gol-E-Gohar Mining and Industrial Facility (Iran). [PDF]

Environ Geochem Health, 2018
Soltani N, Keshavarzi B, Sorooshian A, Moore F, Dunster C, Dominguez AO, Kelly FJ, Dhakal P, Ahmadi MR, Asadi S.   +9 more
europepmc   +1 more source

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Electronic structure and flotation behavior of monoclinic and hexagonal pyrrhotite

Journal of Central South University, 2015
Electronic structures of monoclinic and hexagonal pyrrhotite were studied using density functional theory method, together with their flotation behavior. The main contribution of monoclinic pyrrhotite is mainly from Fe 3d, while that of hexagonal pyrrhotite is from Fe 3d, Fe 3p and S 3s.
Jianhua Chen, Cui-Hua Zhao, Chen Jian-Hua   +2 more
exaly   +2 more sources

Selective sulfide precipitation of copper ions from arsenic wastewater using monoclinic pyrrhotite

Science of the Total Environment, 2020
Pyrrhotite is a potential source of S2- for the sulfide precipitation of nonferrous metal ions in hydrometallurgy and waste water treatment. In this study, different pyrrhotite crystals were prepared using zero-valent iron and sulfur to determine the effects of the pyrrhotite's structure on the sulfide precipitation of copper ions. The results indicate
Xianping Luo, Tong Yue, Hepeng Zhou
exaly   +3 more sources

The kinetics of the dissolution of monoclinic pyrrhotite in aqueous acidic solutions

Monatshefte Für Chemie, 1982
Using the rotating disc method, the rates of dissolution of natural monoclinic pyrrhotite, FeS1.14, in oxygen-free aqueous solutionsS([H+]=0.1, [Na+]=0.9, [ClO 4 − ]=1.0 mol kg−1) were determined. In the temperature range 40–90 °C the dissolution reaction occurs under kinetic control; the activation ...
Gamsjäger Heinz
exaly   +2 more sources