Reclamation of niobium compounds from ionic liquid electrochemical polishing of superconducting radio frequency cavities
- Christopher Newport University, Newport News, VA (United States)
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Recent research has shown that choline chloride (vitamin B4)-based solutions can be used as a greener alternative to acid-based electrochemical polishing solutions. This study demonstrated a successful method for electrochemical deposition of niobium compounds onto the surface of copper substrates using a novel choline chloride-based ionic liquid. Niobium ions present in the ionic liquid solution were dissolved into the solution prior to deposition via electrochemical polishing of solid niobium. A black coating was clearly visible on the surface of the Cu following deposition. This coating was analyzed using scanning electron microscopy (SEM), electron dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), and X-ray fluorescence spectroscopy (XRF). This ionic liquid-based electrochemical deposition method effectively recycles previously dissolved niobium from electrochemical polishing of superconducting radio frequency (SRF) cavities.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1089288
- Report Number(s):
- JLAB-ACC-13-1661; DOE/OR/23177-2646; TRN: US1300379
- Journal Information:
- Journal of Environmental Chemical Engineering, Vol. 1, Issue 1-2; ISSN 2213-3437
- Country of Publication:
- United States
- Language:
- English
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