Results 41 to 50 of about 418,530 (303)

Inhibition Effect of Alkaloids Extract from Annona Squamosa Plant on the Corrosion of C38 Steel in Normal Hydrochloric Acid Medium

open access: yesInternational Journal of Electrochemical Science, 2010
In this work, an alkaloids extract from Annona squamosa plant have been studied as possible corrosion inhibitor for C38 steel in molar hydrochloric acid (1 M HCl). Potentiodynamic polarization and AC impedance methods have been used.
M. Lebrini, F. Robert, C. Roos
doaj   +1 more source

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

Removal of silver (I) from aqueous solutions with clinoptilolite [PDF]

open access: yes, 2006
The aim of the present work was to investigate the ability of natural zeolite, clinoptilolite, to remove silver ions from aqueous solution. Towards this aim, batch adsorption experiments were carried out and the eect of various parameters on this removal
Acar, Orhan   +6 more
core   +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

Steel-Based Electrocatalysts for Efficient and Durable Oxygen Evolution in Acidic Media

open access: yes, 2018
High overpotentials, particularly an issue of common anode materials, hamper the process of water electrolysis for clean energy generation. Thanks to immense research efforts up to date oxygen evolution electrocatalysts based on earth-abundant elements ...
Daum, Diemo   +12 more
core   +1 more source

Evaluation of Eulychnia acida Phil. (Cactaceae) Extracts as Corrosion Inhibitors for Carbon Steel in Acidic Media.

open access: yesInternational Journal of Electrochemical Science, 2016
The process of pickling to remove corrosion products in metal pipes requires the use of an acidic solution together with corrosion inhibitors to protect the metal. However, the use of synthetic/commercial inhibitors has caused environmental pollution and
R. Venegas   +4 more
doaj   +1 more source

Enteric-coating film effect on the delayed drug release of pantoprazole gastro-resistant generic tablets [version 1; peer review: 2 approved]

open access: yesF1000Research, 2023
Background: Enteric coating films in acidic labile tablets protect the drug molecule from the acidic environment of the stomach. However, variations in the excipients used in the coating formulation may affect their ability to provide adequate protection.
Amal Akour   +8 more
doaj   +1 more source

Corrosion behaviour of quasicrystal Al – Cu – Fe and Al – Ni – Fe alloys in acidic solutions [PDF]

open access: yesМеталознавство та обробка металів, 2018
Due to unique physical and mechanical properties of quasicrystals, the Al – Cu – Fe and Al – Ni – Fe alloys can be applied as coatings for parts working under friction, abrasive wear etc.
Sukhova O. V.   +3 more
doaj   +1 more source

Utilization of whole sorghum crop residues for bioethanol production [PDF]

open access: yes, 2016
Sorghum is the fifth most important cereal worldwide and is a major source of agricultural residues in tropical regions. Bioconversion of whole sorghum crop residues comprising stalks, leaves, peduncles and panicles to ethanol has great potential for ...
Agu, Reginald   +3 more
core   +3 more sources

Acidic microenvironment plays a key role in human melanoma progression through a sustained exosome mediated transfer of clinically relevant metastatic molecules [PDF]

open access: yes, 2018
Background: Microenvironment cues involved in melanoma progression are largely unknown. Melanoma is highly influenced in its aggressive phenotype by the changes it determinates in its microenvironment, such as pH decrease, in turn influencing cancer cell
A Albini   +67 more
core   +10 more sources

Home - About - Disclaimer - Privacy