Results 21 to 30 of about 39,824 (274)
Kinetic study of goethite dehydration and the effect of aluminium substitution on the dehydrate [PDF]
, 2012 Goethite and Al-substituted goethite were synthesized and were characterized using XRD and XRF. The kinetic study of goethite dehydrate was investigated by TG and DTG at different heating rates (2, 5, 10, 15, 20 ◦C/min) and the effect of Al substitution ...
Chen, Tianhu +5 more
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Si-P impure Al-Goethite Mineralization on the island of Dugi Otok (Central Adriatic, Croatia)
Geologia Croatica, 2008 At the western seaward coast of the island of Dugi Otok, unusual goethite mineralization occurs as the infilling of a system of thin crevices in the Upper Cretaceous limestones of the Adriatic carbonate platform.
Branimir Šegvić +4 more
doaj +1 more source
Rapid Microwave Method for Synthesis of Iron Oxide Particles under Specific Conditions
Crystals, 2021 The advantages of microwave technology over conventionally conducted experiments are numerous. Some of them are reduction in reaction time, a higher degree of process control, repeatability, and work safety.
Ivana Mitar +6 more
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Геохімія техногенезу, 2022 Secondary weathering microstructures such as oxide rims, oxide veins and pseudomorphs of the weathering products are genetically related to altered (weathered) iron-nickel grains (kamacite α-(Fe,Ni), taenite γ-(Fe,Ni), plessite α+γ-(Fe,Ni)) of the Gruz ...
S.N. Shyrinbekova
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Insights into secondary reactions occurring during atmospheric ablation of micrometeoroids [PDF]
, 2016 Ablation of micrometeoroids during atmospheric entry yields volatile gases such as water, carbon dioxide, and sulfur dioxide, capable of altering atmospheric chemistry and hence the climate and habitability of the planetary surface.
Court, RW, Tan, J
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Atomic scale study of thermal reduction of nano goethite coexisting with magnetite
AIP Advances, 2013 Evolution of the local structure and magnetic properties of nano particles of goethite having magnetite as a composite due to controlled annealing treatments in vacuum has been studied using Mossbauer spectroscopy.
L. Herojit singh +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 The International Ocean Discovery Program (IODP) Expedition 349 recovered Miocene oceanic red beds overlying the basaltic basement in the South China Sea.
Xuan Lyu +6 more
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Fine-scale analysis of biomineralized mollusc teeth using FIB and TEM [PDF]
, 2010 When it comes to mineral synthesis, there is a lot we can learn from nature. Although we can synthesize a range of materials in the laboratory, the experimental conditions are often constrained to particular ranges of temperature, pH, etc.
Clode, P.L. +4 more
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Phosphate adsorption on goethite and Al-rich goethite
Computational Materials Science, 2014 Abstract The adsorption of phosphate complexes on pure and Al-rich goethite surfaces was studied by using density functional theory (DFT) and a periodic slab model. Several phosphate complexes are evaluated on these surfaces, which were not studied in other earlier theoretical works.
Belelli, Patricia Gabriela +2 more
openaire +2 more sources
DESORPTION OF PHOSPHATE FROM GOETHITE [PDF]
Journal of Soil Science, 1979 Summary The reversibility of the adsorption of phosphate on goethite was measured by diluting suspensions of goethite on which phosphate was adsorbed with large volumes of phosphate‐free solution at the same ionic strength. The effect on the reversibility of various adsorption and desorption conditions was studied, particularly pH ...
Madrid, Luis, Posner, M.
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