Selective Reduction of Niobium(V) Species to Promote Molecular Niobium/Tantalum Separation
- Award ID(s):
- 1925708
- PAR ID:
- 10354576
- Date Published:
- Journal Name:
- Inorganic Chemistry
- Volume:
- 61
- Issue:
- 1
- ISSN:
- 0020-1669
- Page Range / eLocation ID:
- 23 to 27
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
A niobium laser multicharged ion source was developed using laser ablation with 10-ns, 1064-nm pulses and a laser fluence of 10–83 Jcm-2. Three distinct groups of Nb ions were detected: ultrafast, fast, and thermal. The ions were accelerated and allowed to drift in a transport line containing an electrostatic ion energy analyzer, a retarding field analyzer, and a Faraday cup. Analysis of the ion energy and charge (z) showed that each group of ions experienced different acceleration potentials during plasma expansion. Time-of-flight (TOF) signal of the thermal ions showed overlap of the signals from Nb1+ and Nb2+. For the fast ion group, z up to Nb7+ was observed and the ion acceleration potential during plasma expansion increased with z, over the charge states from Nb1+ to Nb7+. The TOF signal indicated that the ultrafast ions were composed of higher-charge ions.more » « less
An official website of the United States government

