|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(1) [January 2011] >
| Title: | Electrowinning of copper powder from copper sulphate solution in presence of glycerol and sulphuric acid |
| Authors: | Viswanath, S G
George, Sajimol |
| Keywords: | Electrowinning
Cadmium
Stability
SEM
Particle size
Avrami-Erofeev kinetics |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Copper
powder was obtained by electrowinning copper from glycerol and sulphric acid
medium. The morphology and particle size of these powders were studied.
Dendrites were observed in the powder obtained from solutions containing only
glycerol. Powder obtained from the sulphuric acid glycerol medium the particles
were spherical or round in shape and more than 90% of particles were below 100 µm.
The nano-particles were also observed that were in the range of 200-700 nm. The
apparent density of copper powder decreased with increasing concentration of
sulphuric acid and glycerol that might be helpful in assessing the nature and
particle size. The stability of the powder and current efficiency were also
studied. |
| Page(s): | 37-44 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(1) [January 2011]
|
|
