Characterization of Electrodeposited Technetium on Gold Foil
Abstract
The reduction and electrodeposition of TcO{sub 4}{sup -} on a smooth gold foil electrode with an exposed area of 0.25 cm{sup 2} was performed in 1 M H{sub 2}SO{sub 4} supporting electrolyte using bulk electrolysis with a constant current density of 1.0 A/cm{sup 2} at a potential of -2.0 V. Significant hydrogen evolution accompanied the formation of Tc deposits. Tc concentrations consisted of 0.01 M and 2 x 10{sup -3} M and were electrodeposited over various times. Deposited fractions of Tc were characterized by powder x-ray diffraction, x-ray absorption fine structure spectroscopy, and scanning electron microscopy with the capability to measure semiquantitative elemental compositions by energy-dispersive x-ray emission spectroscopy. Results indicate the presence of Tc metal on all samples as the primary electrodeposited constituent for all deposition times and Tc concentrations. Thin films of Tc have been observed followed by the formation of beads that are removable by scratching. After 2000, the quantity of Tc removed from solution and deposited was 0.64 mg Tc per cm{sup 2}. The solution, after electrodeposition, showed characteristic absorbances near 500 nm corresponding to hydrolyzed Tc(IV) produced during deposition of Tc metal. No detectable Tc(IV) was deposited to the cathode.
- Authors:
-
- UNLV
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Org.:
- DOE - BASIC ENERGY SCIENCES
- OSTI Identifier:
- 1027663
- Resource Type:
- Journal Article
- Journal Name:
- Journal of the Electrochemical Society
- Additional Journal Information:
- Journal Volume: 158; Journal Issue: 3; Journal ID: ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 08 HYDROGEN; ABSORPTION; CURRENT DENSITY; DEPOSITION; ELECTRODEPOSITION; ELECTRODES; ELECTROLYSIS; ELECTROLYTES; EMISSION SPECTROSCOPY; FINE STRUCTURE; GOLD; HYDROGEN; SCANNING ELECTRON MICROSCOPY; SPECTROSCOPY; TECHNETIUM; THIN FILMS; X-RAY DIFFRACTION
Citation Formats
Mausolf, Edward, Poineau, Frederic, Hartmann, Thomas, Droessler, Janelle, and Czerwinski, Ken. Characterization of Electrodeposited Technetium on Gold Foil. United States: N. p., 2011.
Web. doi:10.1149/1.3533364.
Mausolf, Edward, Poineau, Frederic, Hartmann, Thomas, Droessler, Janelle, & Czerwinski, Ken. Characterization of Electrodeposited Technetium on Gold Foil. United States. https://doi.org/10.1149/1.3533364
Mausolf, Edward, Poineau, Frederic, Hartmann, Thomas, Droessler, Janelle, and Czerwinski, Ken. 2011.
"Characterization of Electrodeposited Technetium on Gold Foil". United States. https://doi.org/10.1149/1.3533364.
@article{osti_1027663,
title = {Characterization of Electrodeposited Technetium on Gold Foil},
author = {Mausolf, Edward and Poineau, Frederic and Hartmann, Thomas and Droessler, Janelle and Czerwinski, Ken},
abstractNote = {The reduction and electrodeposition of TcO{sub 4}{sup -} on a smooth gold foil electrode with an exposed area of 0.25 cm{sup 2} was performed in 1 M H{sub 2}SO{sub 4} supporting electrolyte using bulk electrolysis with a constant current density of 1.0 A/cm{sup 2} at a potential of -2.0 V. Significant hydrogen evolution accompanied the formation of Tc deposits. Tc concentrations consisted of 0.01 M and 2 x 10{sup -3} M and were electrodeposited over various times. Deposited fractions of Tc were characterized by powder x-ray diffraction, x-ray absorption fine structure spectroscopy, and scanning electron microscopy with the capability to measure semiquantitative elemental compositions by energy-dispersive x-ray emission spectroscopy. Results indicate the presence of Tc metal on all samples as the primary electrodeposited constituent for all deposition times and Tc concentrations. Thin films of Tc have been observed followed by the formation of beads that are removable by scratching. After 2000, the quantity of Tc removed from solution and deposited was 0.64 mg Tc per cm{sup 2}. The solution, after electrodeposition, showed characteristic absorbances near 500 nm corresponding to hydrolyzed Tc(IV) produced during deposition of Tc metal. No detectable Tc(IV) was deposited to the cathode.},
doi = {10.1149/1.3533364},
url = {https://www.osti.gov/biblio/1027663},
journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 3,
volume = 158,
place = {United States},
year = {Thu Nov 17 00:00:00 EST 2011},
month = {Thu Nov 17 00:00:00 EST 2011}
}