Electroless process for depositing refractory metals
Abstract
The invention provides an inexpensive, scalable process for coating materials with a film of a refractory metal. As an example, the immersion process can comprise the deposition of a sacrificial zinc coating which is galvanically displaced by the ether-mediated reduction of oxophilic WCl6 to form a complex WOxCly film, and subsequently annealed to crystalline, metallic tungsten. The efficacy of this process was demonstrated on a carbon foam electrode, showing a 50% decrease in electrode resistance and significant gains in electrochemical performance. This process enables voltage efficiency gains for electrodes in batteries, redox flow batteries, and industrial processes where high conductivity and chemical stability are paramount.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568215
- Patent Number(s):
- 10263241
- Application Number:
- 15/374,775
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 12/09/2016
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Small, Leo J., Clem, Paul G., and Spoerke, Erik David. Electroless process for depositing refractory metals. United States: N. p., 2019.
Web.
Small, Leo J., Clem, Paul G., & Spoerke, Erik David. Electroless process for depositing refractory metals. United States.
Small, Leo J., Clem, Paul G., and Spoerke, Erik David. Tue .
"Electroless process for depositing refractory metals". United States. https://www.osti.gov/servlets/purl/1568215.
@article{osti_1568215,
title = {Electroless process for depositing refractory metals},
author = {Small, Leo J. and Clem, Paul G. and Spoerke, Erik David},
abstractNote = {The invention provides an inexpensive, scalable process for coating materials with a film of a refractory metal. As an example, the immersion process can comprise the deposition of a sacrificial zinc coating which is galvanically displaced by the ether-mediated reduction of oxophilic WCl6 to form a complex WOxCly film, and subsequently annealed to crystalline, metallic tungsten. The efficacy of this process was demonstrated on a carbon foam electrode, showing a 50% decrease in electrode resistance and significant gains in electrochemical performance. This process enables voltage efficiency gains for electrodes in batteries, redox flow batteries, and industrial processes where high conductivity and chemical stability are paramount.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}
Works referenced in this record:
Apparatus of high power density fuel cell layer with micro for connecting to an external load
patent, March 2005
- McLean, Gerard F.
- US Patent Document 6,864,010
Multilayer solar cells with bypass diode protection
patent, November 1999
- Green, Martin Andrew; Wenham, Stuart Ross
- US Patent Document 5,990,415