Published June 26, 2013
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Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction
Abstract
Nanoparticles of nickel phosphide (Ni_2P) have been investigated for electrocatalytic activity and stability for the hydrogen evolution reaction (HER) in acidic solutions, under which proton exchange membrane-based electrolysis is operational. The catalytically active Ni_2P nanoparticles were hollow and faceted to expose a high density of the Ni_2P(001) surface, which has previously been predicted based on theory to be an active HER catalyst. The Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H_2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.
Additional Information
© 2013 American Chemical Society. Received: April 6, 2013; Published: June 13, 2013. This work was supported by the U.S. National Science Foundation "Powering the Planet" Center for Chemical Innovation (CHE-0802907). J.R.M. acknowledges the Department of Energy, Office of Science for a graduate research fellowship. TEM imaging was performed in the Electron Microscopy Facility of the Huck Institutes of the Life Sciences, and HRTEM and SEM imaging was performed in the Materials Characterization Lab of the Penn State Materials Research Institute. The authors thank Melisa Yashinski, Julie Anderson, and Trevor Clark for assistance with SEM imaging, Josh Stapleton for assistance with DRIFTS data collection and interpretation, and Jason Binz and Robert Rioux for assistance with the BET surface area measurements.Attached Files
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Additional details
- Eprint ID
- 39891
- Resolver ID
- CaltechAUTHORS:20130813-110523757
- CHE-0802907
- NSF
- Department of Energy (DOE)
- Created
-
2013-08-19Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- CCI Solar Fuels