Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Deposition of tungsten metal by an immersion process

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0131706jes· OSTI ID:1369449

A new multi-step, solution-phase method for the spontaneous deposition of tungsten from a room temperature ethereal solution is reported. This immersion process relies on the deposition of a sacrificial zinc coating which is galvanically displaced by the ether-mediated reduction of oxophilic WCl6. Subsequent thermal treatment renders a crystalline, metallic tungsten film. The chemical evolution of the surface and formation of a complex intermediate tungsten species is characterized by X-ray diffraction, infrared spectroscopy, and X-ray photoelectron spectroscopy. Efficient metallic tungsten deposition is first characterized on a graphite substrate and then demonstrated on a functional carbon foam electrode. The resulting electrochemical performance of the modified electrode is interrogated with the canonical aqueous ferricyanide system. A tungsten-coated carbon foam electrode showed that both electrode resistance and overall electrochemical cell resistance were reduced by 50%, resulting in a concomitant decrease in redox peak separation from 1.902 V to 0.783 V. Furthermore, this process promises voltage efficiency gains in electrodes for energy storage technologies and demonstrates the viability of a new route to tungsten coating for technologies and industries where high conductivity and chemical stability are paramount.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Electricity Delivery and Energy Reliability (OE)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1369449
Report Number(s):
SAND--2017-2433J; 651492
Journal Information:
Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 6 Vol. 164; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Impedance Spectroscopy book January 2005
Low-Temperature Atomic Layer Deposition of Tungsten using Tungsten Hexafluoride and Highly-diluted Silane in Argon journal May 2013
Reactivity of [WCl6] with Ethers: A Joint Computational, Spectroscopic and Crystallographic Study: Reactivity of [WCl6] with Ethers: A Joint Computational, Spectroscopic and Crystallographic Study journal May 2016
TeO2–WO3 Glasses: Infrared, XPS and XANES Structural Characterizations journal October 2002
Determination of the States of Oxidation of Metals in Thin Oxide Films by X-Ray Photoelectron Spectroscopy journal May 2005
X-ray photoelectron spectroscopy study of supported tungsten oxide journal August 1973
The infrared spectra of the moOCl, moO2Cl2, WOCl, WO2Cl2, MoO2, MoO3 and Mo3O9 gaseous molecules journal April 1991
Infrared and Raman spectroscopies of rf sputtered tungsten oxide films journal March 1988
Low energy electron induced chemistry: C2H5Cl on Ag(111) journal January 1992
The multi-surface structure and catalytic properties of partially reduced WO3, WO2 and WC + O2 or W + O2 as characterized by XPS journal December 1995
Dopant-polymer interaction: WCl6-doped polyacetylene journal June 1987
Electrodeposition and properties of NiW, FeW and FeNiW amorphous alloys. A comparative study journal June 2000
The anomalous codeposition of tungsten in the presence of nickel journal August 2003
XPS studies on WO2.90 and WO2.72 and the influence of metallic impurities journal October 1983
FTIR investigations of tungsten oxide electrochromic films derived from organically modified peroxotungstic acid precursors journal December 2001
Reduction of WCl6 by allyltrimethylsilane. A convenient method to prepare WCl5(OEt2) and some other derivatives of WCl5 journal January 1991
XPS, XES and XAS studies of the electronic structure of tungsten oxides journal June 2000
Electrochromic tungsten oxide films: Review of progress 1993–1998 journal January 2000
Synthesis and characterization of nickel tungsten alloys by electrodeposition journal May 2005
Analysis of tungsten film electrodeposited from a ZnCl2–NaCl–KCl melt journal November 2007
XPS studies on surface reduction of tungsten oxide nanowire film by Ar+ bombardment journal April 2012
Low temperature performance of sodium–nickel chloride batteries with NaSICON solid electrolyte journal December 2015
The use of X-ray photoelectron spectroscopy to assign formal oxidation states in complexes of tungsten (vi), (v) and (iv) journal January 2012
Iron–tungsten alloys electrodeposited under direct current from citrate–ammonia plating baths journal July 2009
Electrodeposited 3D Tungsten Photonic Crystals with Enhanced Thermal Stability journal November 2011
Chloro-Alkoxide Route to Transition Metal Oxides. Synthesis of WO 3 Thin Films and Powders from a Tungsten Chloro-Methoxide journal November 2009
Liquid Metal Batteries: Past, Present, and Future journal November 2012
Exploring Electrochromics: A Series of Eye-Catching Experiments To Introduce Students to Multidisciplinary Research journal August 2014
Isolation and characterization of reactive intermediates and active catalysts in homogeneous catalysis journal April 1985
WO3 thin film prepared by PECVD technique and its gas sensing properties to NO2 journal January 2001
Vapor diffusion synthesis of CoFe 2 O 4 hollow sphere/graphene composites as absorbing materials journal January 2014
A systematic study on the activation of simple polyethers by MoCl5 and WCl6 journal January 2010
Influence of metal–metal bonds on electron spectra of MoO 2 and WO 2 journal January 1996
Fresh Cleaved Single Crystal NaCl, XPS Spectra, Al Source journal April 1993
Electroplating of High Tungsten Content Ni/W Alloys journal January 1999
Electrodeposition of Tungsten in ZnBr[sub 2]-NaBr and ZnCl[sub 2]-NaCl Melts journal January 1991
Electroanalytical Study of the Reduction of K[sub 2]WCl[sub 6] in Molten LiCl-KCl Eutectic journal January 1993
Through-Plane Conductivities of Membranes for Nonaqueous Redox Flow Batteries journal January 2015

Similar Records

Electroless process for depositing refractory metals
Patent · Tue Apr 16 00:00:00 EDT 2019 · OSTI ID:1568215

Spectroscopic and electrochemical studies of tungsten(VI) and Tungsten(V) chloride and oxychloride complexes in a sodium chloride saturated sodium chloroaluminate melt
Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Journal of the Electrochemical Society; (United States) · OSTI ID:5998639

ZnCr and ZnNb Cold Spray Coatings
Conference · Sun Mar 06 23:00:00 EST 2022 · OSTI ID:1855149