NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(08) [August 2011] >


Title: Organized media as redox catalysts on the reaction rate of CoIII-FeII redox couple
Authors: Mukherjee, Mousumi
Mahapatra, Ambikesh
Keywords: Solution chemistry
Kinetics
Electron transfer
Surfactants
Micelles
Reverse micelles
Organized media
Cobalt-Iron redox reaction
Issue Date: Aug-2011
Publisher: NISCAIR-CSIR, India
Abstract: Micelles catalyze the [Co(NH3)5Cl](NO3)2 - Mohr’s salt redox reaction due to the binding of the substrates onto the micellar surface by non-coulombic and coulombic interactions. This binding increases the encounter probability, leading to a substantially accelerated reaction. The kinetic studies of the same redox reaction have also been carried out in the water pools of non-ionic reverse micelles of Triton X-100/1-butanol in n-heptane. The findings indicate that probably substrate solubilization sites in micelles and reverse micelles are the interfacial and Stern regions. The reaction rates decrease with the water-to-surfactant mole ratio. The correct selection of surfactant for micelle, size of reverse micellar water pool cavity, different additives and the catalyst connecting nanoparticles control the electron transfer reaction rate in solution. Copper-sol induced catalysis occurs due to the availability of a suitable surface which acts as a mediator for the electron-transfer reaction between [Co(NH3)5Cl](NO3)2 and Mohr’s salt.
Page(s): 1043-1049
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(08) [August 2011]

Files in This Item:

File Description SizeFormat
IJCA 50A(8) 1043-1049.pdf422.09 kBAdobe PDFView/Open
 Current Page Visits: 773 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 639400 since 06-Feb-2009  Last updated on 15-Dec-2014Webmaster: nopr@niscair.res.in