Results 31 to 40 of about 17,547,833 (304)

Corrosion Inhibition by Isertia coccinea Plant Extract in Hydrochloric Acid Solution

open access: yesInternational Journal of Electrochemical Science, 2011
The effect of alkaloids extracted from Isertia coccinea plant (AEIC) on the corrosion of C38 steel in 1 M hydrochloric acid was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques.
M. Lebrini   +3 more
doaj   +1 more source

Electrochemical and Theoretical Studies of Adsorption of Some Indole Derivates at C38 Steel/Sulfuric Acid Interface as Corrosion Inhibitors

open access: yesInternational Journal of Electrochemical Science, 2011
The inhibitive action of 9H-pyrido[3,4-b]indole (norharmane) and 1-Methyl-9H-pyrido[3,4-b]indole (harmane) on corrosion of C38 steel in 0.5 M H2SO4 solution was investigated through electrochemical techniques.
M. Lebrini, C. Roos, H. Vezin, F. Robert
doaj   +1 more source

Natural diatomite (Rudovci, Serbia) as adsorbent for removal Cs from radioactive waste liquids [PDF]

open access: yesScience of Sintering, 2015
The removal of Cs (I) ions from aqueous solution was studied using natural diatomite as adsorption materials originated from Rudovci, Serbia. The microstructure of natural diatomite has been characterized by X-ray diffraction (XRD), scanning ...
Nenadović S.   +6 more
doaj   +1 more source

Investigation on the dynamic behaviour and corrosion characteristics of hexagonal boron nitride (h-BN) and zirconium dioxide (ZrO2) reinforced Al7075 composite

open access: yesJournal of Alloys and Metallurgical Systems, 2023
Stir casting was used to make Al7075 composites with 3% h-BN and different amounts of ZrO2 (2%, 4%, and 6% by weight). Damping behaviour and corrosion resistance corresponding to the reinforcement percentage were investigated. Damping was evaluated using
B. Kuldeep   +5 more
doaj   +1 more source

Monitoring media pluralism in Europe : application of the media pluralism monitor 2016 in the European Union, Montenegro and Turkey [PDF]

open access: yes, 2017
This report presents the results and the methodology of the 2016 implementation of the Media Pluralism Monitor (MPM) in EU-28 countries and in Montenegro and Turkey (MPM2016), carried out by the Centre for Media Pluralism and Media Freedom, EUI.
Centre for Media Pluralism and Media Freedom
core   +1 more source

Restructuring highly electron-deficient metal-metal oxides for boosting stability in acidic oxygen evolution reaction

open access: yesNature Communications, 2021
The poor catalyst stability for oxygen evolution in acidic media has been a long-time issue. Here, authors demonstrate iridium on MoO3 exhibits a low overpotential for oxygen evolution and excellent durability in acidic media due to the high oxidation ...
Xinghui Liu   +11 more
doaj   +1 more source

Solubility of Platinum in Acidic Media (I)-in Sulfuric Acid

open access: yesElectrochemistry, 2007
Platinum depositions have been observed in the electrolyte membrane of polymer electrolyte fuel cells (PEFCs) as in other types of fuel cells; PEFCs, MCFCs. The platinum solubility in the membrane must be a key issue to improve and guarantee the durability of PEFCs. In this basic study, the platinum solubility has been determined in an acidic medium as
MITSUSHIMA, Shigenori   +3 more
openaire   +2 more sources

Alkaloid Extract from Chimarrhis cymosa as a Corrosion Inhibitor for C38 Steel in 1M Hydrochloric Acid: Electrochemical and XPS Studies

open access: yesMetals
The inhibitory effect of the alkaloid extract from Chimarrhis cymosa on C38 steel corrosion in 1M HCl was examined through electrochemical investigations.
Mahado Said-Ahmed, Mounim Lebrini
doaj   +1 more source

Praseodymium-decorated graphene oxide as a corrosion inhibitor in acidic media for the magnesium AZ31 alloy

open access: yes, 2018
In the present work, Pr-decorated graphene oxide was synthesized and tested as a corrosion barrier layer in acidic media for the magnesium AZ31 alloy. The morphology, composition and structure of Pr-decorated graphene oxide sheets were characterized via ...
Caballero-Briones, F.   +9 more
core   +1 more source

Preparation of PtRu/C Electrocatalysts by Borohydride Reduction for Methanol Oxidation in Acidic and Alkaline Medium

open access: yesInternational Journal of Electrochemical Science, 2017
PtRu/C electrocatalysts were performed according to the borohydride reduction method and characterized by X–ray diffraction (XRD), energy dispersive analysis (EDX), transmission electron microscopy, cyclic voltammetry (CV) and polarization curves in ...
Monique Carolina Lima dos Santos   +4 more
doaj   +1 more source

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