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Title: Palladium Coated Copper Nanowires as a Hydrogen Oxidation Electrocatalyst in Base

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0211508jes· OSTI ID:1242019
 [1];  [2]
  1. Univ. of Delaware, Newark, DE (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Univ. of Delaware, Newark, DE (United States)

The palladium (Pd) nanotubes we synthesized by the spontaneous galvanic displacement of copper (Cu) nanowires, are forming extended surface nanostructures highly active for the hydrogen oxidation reaction (HOR) in base. The synthesized catalysts produce specific activities in rotating disk electrode half-cells 20 times greater than Pd nanoparticles and about 80% higher than polycrystalline Pd. Although the surface area of the Pd nanotubes was low compared to conventional catalysts, partial galvanic displacement thrifted the noble metal layer and increased the Pd surface area. Moreover, the use of Pd coated Cu nanowires resulted in a HOR mass exchange current density 7 times greater than the Pd nanoparticles. The activity of the Pd coated Cu nanowires further nears Pt/C, producing 95% of the mass activity.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1242019
Report Number(s):
NREL/JA-5900-64906
Journal Information:
Journal of the Electrochemical Society, Vol. 162, Issue 8; Related Information: Journal of the Electrochemical Society; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Cited By (5)

The Hydrogen Oxidation Reaction in Alkaline Medium: An Overview journal March 2019
Experimental Protocol for HOR and ORR in Alkaline Electrochemical Measurements journal January 2018
Unexpected Behavior of the Hydrogen Oxidation Reaction on Palladium in Alkaline Solution: A Feasible Kinetic Explanation journal January 2018
Evaluating Hydrogen Evolution and Oxidation in Alkaline Media to Establish Baselines journal January 2018
Synthesis and Application of Copper Nanowires and Silver Nanosheet-Coated Copper Nanowires as Nanofillers in Several Polymers book July 2017