Synchrotron micro-spectroscopic examination of Indonesian nickel laterites

2015 ◽  
Vol 100 (4) ◽  
pp. 926-934 ◽  
Author(s):  
R. Fan ◽  
A. R. Gerson
Keyword(s):  
Spectroscopic Examination ◽  
Nickel Laterites

Benzylamine Tartrate as an Organic Glass Substrate for Carbon Films by Evaporation

1970 ◽  
Vol 28 ◽  
pp. 484-485
Author(s):  
A. C. Faberge
Keyword(s):  
Vapor Pressure ◽  
Viscous Liquid ◽  
Glass Substrate ◽  
Room Temperature ◽  
Carbon Film ◽  
Carbon Films ◽  
Organic Glass ◽  
Spectroscopic Examination ◽  
Polymeric Substrates

Benzylamine tartrate (m.p. 63°C) seems to be a better and more convenient substrate for making carbon films than any of those previously proposed. Using it in the manner described, it is easy consistently to make batches of specimen grids as open as 200 mesh with no broken squares, and without individual handling of the grids. Benzylamine tartrate (hereafter called B.T.) is a viscous liquid when molten, which sets to a glass. Unlike polymeric substrates it does not swell before dissolving; such swelling of the substrate seems to be a principal cause of breakage of carbon film. Mass spectroscopic examination indicates a vapor pressure less than 10−9 Torr at room temperature.

Spectroscopic examination of a pulsed plasma jet in air and under vacuum

1968 ◽  
Vol 8 (3) ◽  
pp. 257-258
Author(s):  
G. I. Bakanovich ◽  
L. I. Grechikhin ◽  
L. Ya. Min'ko
Keyword(s):  
Plasma Jet ◽  
Pulsed Plasma ◽  
Spectroscopic Examination

Atmospheric acid leaching of nickel laterites review

2008 ◽  
Vol 91 (1-4) ◽  
pp. 35-55 ◽  
Author(s):  
R.G. McDonald ◽  
B.I. Whittington
Keyword(s):  
Acid Leaching ◽  
Nickel Laterites

Vibrational spectroscopic examination of the formation of mordenite crystals

1991 ◽  
Vol 95 (13) ◽  
pp. 5267-5271 ◽  
Author(s):  
Jen Twu ◽  
Prabir K. Dutta ◽  
Charles T. Kresge
Keyword(s):  
Spectroscopic Examination

Electrochemical Dissolution of Goethite by Abrasive Stripping Voltammetry

1995 ◽  
Vol 60 (6) ◽  
pp. 950-959 ◽  
Author(s):  
Tomáš Grygar ◽  
Jan Šubrt ◽  
Jaroslav Boháček
Keyword(s):  
Solid Phase ◽  
Reaction Pathway ◽  
Stripping Voltammetry ◽  
Electrode Reaction ◽  
Reductive Dissolution ◽  
Quantitative Characterization ◽  
Acid Media ◽  
Qualitative And Quantitative ◽  
Spectroscopic Examination

Abrasive stripping voltammetry was applied to the investigation of the reductive dissolution of some iron(III) oxides and hydroxy-oxides, particularly goethite (α-FeOOH), in acid media. The electrode reaction directly involves the solid phase, and the reaction pathway depends on the phase composition and particle shape. This can be used for a qualitative and quantitative characterization of goethite. The results of a quantitative analysis of a mixture of goethite (α-FeOOH) and lepidocrocite (γ-FeOOH) are compared with those of IR and Moessbauer spectroscopic examination. The effects of the particle appearance (shape, crystal intergrowth) on the results of the voltammetric and chronoamperometric measurements are discussed.

Insights into the Electronic Structure of Fe Penta-Coordinated Complexes. Spectroscopic Examination and Electrochemical Analysis for the Oxygen Reduction and Oxygen Evolution Reactions.

2021 ◽  
Author(s):  
César Zúñiga-Loyola ◽  
Gabriel Abarca ◽  
Maria Soledad Ureta-Zanartu ◽  
Carolina Aliaga ◽  
Jose Zagal ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Analysis ◽  
X Ray ◽  
Spectroscopic Examination ◽  
Modified Carbon Nanotubes

Fe phthalocyanine was coordinated to pyridine-modified carbon nanotubes and studied as a catalyst for the oxygen reduction (ORR) and oxygen evolution reactions (OER). X-ray Photoelectron Spectroscopy (XPS), Mössbauer, and Electron...

Acid Leaching of Nickel Laterites with Jarosite Precipitation

Ni-Co 2013 ◽  
2013 ◽  
pp. 74-95
Author(s):  
David T White ◽  
James D Gillaspie
Keyword(s):  
Acid Leaching ◽  
Nickel Laterites
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