Studies on electrochemical behaviour on NpO22+/NpO2+ redox couple at single walled carbon nanotube modified glassy carbon electrode (SWCNT-GC)
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Ruma Gupta
,
J. V. Kamat
Abstract
Electrochemistry of NpO22+/NpO2+ couple in 1 M H2SO4 was studied on bare and modified glassy carbon (GC) electrodes by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The modified electrode (SWCNTs-GC) was characterized by scanning electron microscopy (SEM). Electrocatalysis of NpO22+/NpO2+redox reaction was observed on SWCNT-GC electrode. The lower charge transfer resistance at SWCNT-GC reflects faster rate of electron transfer reaction of Np(VI)/Np(V) couple. These results are interesting to develop electroanalytical methodologies for neptunium determination using SWCNT modified electrode. To the best of our knowledge, this is the first study on the electrocatalysis of neptunium on SWCNT modified electrode.
©2014 Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Frontmatter
- Nature of nano-sized plutonium particles in soils at the Hanford Site
- Studies on electrochemical behaviour on NpO22+/NpO2+ redox couple at single walled carbon nanotube modified glassy carbon electrode (SWCNT-GC)
- Study on the technology of U-Pu Co-stripping process for reprocessing spent fuel of fast reactor
- Use of the transpiration method to study polonium evaporation from liquid lead-bismuth eutectic at high temperature
- In-situ formation, thermal decomposition, and adsorption studies of transition metal carbonyl complexes with short-lived radioisotopes
- Production of 111In and 114mIn by proton induced reactions: an update on excitation functions, chemical separation – purification and recovery of target material
- Preparation and preliminary biological evaluation of radiogallium-labeled DTPA-amlodipine complex for possible L-type calcium channel imaging
- An improved analytical method for iodine-129 determination in low-level radioactive waste
Articles in the same Issue
- Frontmatter
- Nature of nano-sized plutonium particles in soils at the Hanford Site
- Studies on electrochemical behaviour on NpO22+/NpO2+ redox couple at single walled carbon nanotube modified glassy carbon electrode (SWCNT-GC)
- Study on the technology of U-Pu Co-stripping process for reprocessing spent fuel of fast reactor
- Use of the transpiration method to study polonium evaporation from liquid lead-bismuth eutectic at high temperature
- In-situ formation, thermal decomposition, and adsorption studies of transition metal carbonyl complexes with short-lived radioisotopes
- Production of 111In and 114mIn by proton induced reactions: an update on excitation functions, chemical separation – purification and recovery of target material
- Preparation and preliminary biological evaluation of radiogallium-labeled DTPA-amlodipine complex for possible L-type calcium channel imaging
- An improved analytical method for iodine-129 determination in low-level radioactive waste
