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Cited by 464

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Electrocatalytic and Photocatalytic Hydrogen Production from Acidic and Neutral-pH Aqueous Solutions Using Iron Phosphide Nanoparticles

Callejas, Juan F., McEnaney, Joshua M., Read, Carlos G., Crompton, J. Chance, Biacchi, Adam J., Popczun, Eric J., Gordon, Thomas R., Lewis, Nathan S., Schaak, Raymond E.·2014·ACS Nano

Abstract

Nanostructured transition-metal phosphides have recently emerged as Earth-abundant alternatives to platinum for catalyzing the hydrogen-evolution reaction (HER), which is central to several clean energy technologies because it produces molecular hydrogen through the electrochemical reduction of water. Iron-based catalysts are very attractive targets because iron is the most abundant and least expensive transition metal. We report herein that iron phosphide (FeP), synthesized as nanoparticles having a uniform, hollow morphology, exhibits among the highest HER activities reported to date in both acidic and neutral-pH aqueous solutions. As an electrocatalyst operating at a current density of -10 mA cm(-2), FeP nanoparticles deposited at a mass loading of ∼1 mg cm(-2) on Ti substrates exhibited overpotentials of -50 mV in 0.50 M H2SO4 and -102 mV in 1.0 M phosphate buffered saline. The FeP nanoparticles supported sustained hydrogen production with essentially quantitative faradaic yields for extended time periods under galvanostatic control. Under UV illumination in both acidic and neutral-pH solutions, FeP nanoparticles deposited on TiO2 produced H2 at rates and amounts that begin to approach those of Pt/TiO2. FeP therefore is a highly Earth-abundant material for efficiently facilitating the HER both electrocatalytically and photocatalytically.

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Crossref · 10.1021/nn5048553

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Metadata

Authors
Callejas, J. F., McEnaney, J. M., Read, C. G., Crompton, J. C., Biacchi, A. J., Popczun, E. J., Gordon, T. R., Lewis, N. S., & Schaak, R. E.
Venue
ACS Nano
Published
2014-10-01
Volume
8
Issue
11
Pages
11101-11107
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W1977466903
Cited by
464
References
12
FWCI
19.21
Type
journal article
Language
en
Open access
closed

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