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Volume 4, Issue 3, (November ‒ December 2015)

Electron Ionization Double Differential Cross Sections of N2O Molecule

Original Research

Journal of Chemistry and Materials Research Vol. 4 (3), 2015, 71–74

Rajeev Kumar*, Sanju

 

Abstract

Partial and total double differential cross sections corresponding to various cationsN2O+, NO+, N2+, N+ and O+produced during the direct and dissociative electron ionization of N2O molecule have been calculated at fixed impinging electron energies 100 and 200eV by using modified Jain–Khare semi empirical approach [1-4]. The calculation for double differential cross sections is made as a function of energy loss suffered by primary electron and angle of incident. To the best of our knowledge no other data is available for the comparison.

 

Keywords: Cross sections and N2O.

Received
Received in revised
Accepted
02 December 2015
-
23 December 2015
 

Zingiber officinale as Green Corrosion Inhibitor for Mild Steel in 5.0 M Hydrochloric Acid Solution

Original Research

Journal of Chemistry and Materials Research Vol. 4 (3), 2015, 75–81

Harish Kumar * and Vikas Yadav

 

Abstract

The dried powder of roots of Zingiber officinale on corrosion inhibition of mild steel in   5.0  M  hydrochloric  acid  solution was  investigated  by  Weight  loss  method, Gasometric method, Potentiodynamic polarization and Electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency is found to increase with increase in concentration of the Zingiber officinale from 0.1 to 4.0 g/l. Polarization measurement indicates that Zingiber officinale acts as a mixed-type inhibitor. The inhibition is assumed to occur via adsorption of inhibitor molecules on metal surface.  SEM and Metallurgical research microscopy studies confirmed the adsorption of inhibitor molecules on mild steel surface. More than 97.0 % corrosion inhibition efficiency was observed for mild steel in presence of 4.0 g/l of Zingiber officinale in 5.0 M HCl solution.

 

Keywords:  Acid corrosion; EIS; SEM; Corrosion inhibition; Mild Steel; Zingiber officinale.

Received

Received in revised
  Accepted
19 December 2015
-
11 February 2016