alexa Abstract | Gravimetric and electrochemical impedance spectroscopy study for 4-(2-chlorobenzyl)-6-hydrazino-3-methyl-1,6-dihydropyridazine as inhibitor corrosion for copper in nitric acid

Journal of Chemical and Pharmaceutical Research
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Original Articles Open Access

Abstract

Corrosion inhibition effect of 4-(2-chlorobenzyl)-6-hydrazino-3-methyl-1,6-dihydropyridazine (P2) on copper corrosion was studied in 2.0 M HNO3 solutions in the temperature range from 303K to 343K using gravimetric and electrochemical impedance spectroscopy (EIS) technique. The results obtained from the both measurement techniques revealed good inhibitor efficiency in the studied concentration range. The inhibition efficiency decrease with rise in temperature. Impedance measurements showed that the double-layer capacitance decreased and charge-transfer resistance increased with increase in the inhibitor concentration and hence increasing in inhibition efficiency. The results obtained from the different methods are in good agreement. Various parameters (Ea, DGads, Kads) for adsorption reveal a strong interaction between inhibitor and copper surface. Adsorption followed the Langmuir isotherm with negative values of DGads , suggesting a stable and a spontaneous inhibition process. Kinetic parameters activation such as Ea, ΔHa, ΔSa and pre-exponential factor have been calculated and discussed.

To read the full article Peer-reviewed Article PDF image

Author(s): L Afrine A Zarrouk H Zarrok R Salghi R Touir B Hammouti H Oudda M Assouag H Hannache M El Harti and M Bouachrine

Keywords

Pyridazine inhibitor, Copper, HNO3, EIS, Gravimetric, electrochemical impedance spectroscopy

 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords