The surface oxidation of pyrite. Applications of Surface Science 27, 437-452.The surface oxidation of pyrite. A.N. Buckley,R. Woods. Applied Surface Science . 1987Buckley AN, Woods R (1987) The surface oxidation of pyrite. Appl Surf Sci 27:437-452...
Surface ScienceMattila S,Leiro JA,Heinonen M. XPS study of the oxidized pyrite surface[J].Surface Science: A Journal Devoted to the Physics and Chemistry of Interfaces 2004,2(2).Mattila S., Leiro J. A. and Heinonen M. (2004) XPS study of the oxidized pyrite surface. Surf. Sci. 566,...
X-ray Photoelectron Spectroscopy (XPS) was used to study mineral, synthetic and coal-associated pyrites, oxidized for various time intervals at low temperatures with humid air or oxygen. This was done to find out if XPS could detect, monitor and clarify pyrite surface-oxidative changes that infl...
Sorption of mercury(II) onto well-characterized samples of pyrite was studied between DH 2 and 12 using X-ray photoelectron spectroscopy for surface analysis and extended X-ray absorption fine structure fur surface speciation. In the presence of Hg, the surface oxidation of pyrite was strongly dec...
microbial oxidative mechanisms and describes the occurrence of mineral products resulting from pyrite oxidation. Although oxygen is the overall oxidant, kinetic data suggests that ferric iron is the direct oxidant in acid systems and that temperature, pH, surface area, and the presence of iron and ...
Brennan E W,Lindsay W L.The role of pyrite in controlling metal ion activities in highly reduced soils. Geochimica et Cosmochimica Acta . 1996BRENNAN E W,LINDSAY W L.The role of pyrite in controlling metal ion activities in highly reduced soils [J].Geochimica et Cosmochimica Acta,1996,60(...
If '1 = (.r j zA where u is the specific resistance of the earth at its surface, V is the velocity of radiation in the space outside the earth, A is the wave-length of the oscillations, and z=(21rajA), where a is the earth's radius, it appears that, when 1)Z is a small...
When there are pyrite-bearing strata in tunnel construction, oxidation of pyrite will results in formation of acidic environment and bring adverse effect on durability of concrete lining. Chemical reactions and mechanisms of pyrite oxidization are studied in this paper, as well as immersion experiment...
The decomposition rate of thiosulfate (S O ) and the formation rates of its partial decomposition products, sulfite (SO ), sulfate (SO ), and tetrathionate (S O ), were measured in the absence and presence of pyrite in aqueous solution of pH 2.9-8.6 at 20°C. The pyrite...
In terms of its better preservation of pyrite, which improves shale reservoir brittleness, there is more enhancement of the shale reservoir quality within the TFBL system than the PDDF system. The coal-measure shale samples exhibit a positive logarithmic correlation between reservoir porosity and ...