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Kinetics study on radiolytic reduction of aqueous Cu{sup 2+}, Co{sup 2+} and Ni{sup 2+} metal ions

Abstract

Pulse radiolytic reduction of aqueous Cu{sup 2+}, Ni{sup 2+}, and Co{sup 2+} in the presence of formate ions was undertaken in order to understand the intermediate steps in the final metal particles formation. Initial reduction to M{sup +} form was completed in {approx} 2-5 micro second. Next step was either disproportionation to give M{sup 0} and M{sup 2+} or other decay paths as suggested from this work. In the case of Co{sup 2+} reduction, presence of 1% sodium dodecyl sulfate and 1% polyvinyl alcohol decreased the M{sup +} decay rate constant from 6.6 x 10{sup 4} to 4.0 x 10{sup 4} and 3.7 x 10{sup 4} s{sup -1} respectively. (author). 4 refs., 1 tab.
Authors:
Shastri, L V; Kumar, Manmohan; Gopinathan, C [1] 
  1. Bhabha Atomic Research Centre, Bombay (India). Chemistry Div.
Publication Date:
Dec 31, 1994
Product Type:
Conference
Report Number:
CONF-9401116-
Reference Number:
SCA: 400600; PA: AIX-26:062506; EDB-95:131104; SN: 95001457676
Resource Relation:
Conference: TRSP-94: Trombay symposium on radiation and photochemistry, Bombay (India), 17-21 Jan 1994; Other Information: PBD: 1994; Related Information: Is Part Of Trombay symposium on radiation and photochemistry. Preprints vol. 2: contributed papers; PB: 407 p.
Subject:
40 CHEMISTRY; COBALT COMPOUNDS; RADIOLYSIS; COPPER COMPOUNDS; NICKEL COMPOUNDS; CHEMICAL REACTION KINETICS; ELECTRON BEAMS; FORMATES; PULSED IRRADIATION; REDUCTION; SCAVENGING; SOLVATED ELECTRONS
OSTI ID:
100390
Research Organizations:
Department of Atomic Energy, Bombay (India). Board of Research in Nuclear Sciences
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9501102062506
Submitting Site:
INIS
Size:
pp. 78-80
Announcement Date:
Jan 16, 2004

Citation Formats

Shastri, L V, Kumar, Manmohan, and Gopinathan, C. Kinetics study on radiolytic reduction of aqueous Cu{sup 2+}, Co{sup 2+} and Ni{sup 2+} metal ions. India: N. p., 1994. Web.
Shastri, L V, Kumar, Manmohan, & Gopinathan, C. Kinetics study on radiolytic reduction of aqueous Cu{sup 2+}, Co{sup 2+} and Ni{sup 2+} metal ions. India.
Shastri, L V, Kumar, Manmohan, and Gopinathan, C. 1994. "Kinetics study on radiolytic reduction of aqueous Cu{sup 2+}, Co{sup 2+} and Ni{sup 2+} metal ions." India.
@misc{etde_100390,
title = {Kinetics study on radiolytic reduction of aqueous Cu{sup 2+}, Co{sup 2+} and Ni{sup 2+} metal ions}
author = {Shastri, L V, Kumar, Manmohan, and Gopinathan, C}
abstractNote = {Pulse radiolytic reduction of aqueous Cu{sup 2+}, Ni{sup 2+}, and Co{sup 2+} in the presence of formate ions was undertaken in order to understand the intermediate steps in the final metal particles formation. Initial reduction to M{sup +} form was completed in {approx} 2-5 micro second. Next step was either disproportionation to give M{sup 0} and M{sup 2+} or other decay paths as suggested from this work. In the case of Co{sup 2+} reduction, presence of 1% sodium dodecyl sulfate and 1% polyvinyl alcohol decreased the M{sup +} decay rate constant from 6.6 x 10{sup 4} to 4.0 x 10{sup 4} and 3.7 x 10{sup 4} s{sup -1} respectively. (author). 4 refs., 1 tab.}
place = {India}
year = {1994}
month = {Dec}
}