Intense pulsed light, a promising technique to develop molybdenum sulfide catalysts for hydrogen evolution

Intense pulsed light, a promising technique to develop molybdenum sulfide catalysts for hydrogen evolution

We have demonstrated a simple and scalable fabrication process for defect-rich MoS2 directly from ammonium tetrathiomolybdate precursor using intense pulse light treatment in milliseconds durations. The formation of MoS2 from the precursor film after intense pulsed light exposure was confirmed with...

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Veröffentlicht in:Nanotechnology 2019-04, Vol.30 (17), p.175401-175401
Hauptverfasser: Gupta, Alexander, Ankireddy, Krishnamraju, Kumar, Bijendra, Alruqi, Adel, Jasinski, Jacek, Gupta, Gautam, Druffel, Thad
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hydrogen evolution
intense pulsed light
MoS
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container_end_page 175401
container_issue 17
container_start_page 175401
container_title Nanotechnology
container_volume 30
creator Gupta, Alexander
Ankireddy, Krishnamraju
Kumar, Bijendra
Alruqi, Adel
Jasinski, Jacek
Gupta, Gautam
Druffel, Thad
description We have demonstrated a simple and scalable fabrication process for defect-rich MoS2 directly from ammonium tetrathiomolybdate precursor using intense pulse light treatment in milliseconds durations. The formation of MoS2 from the precursor film after intense pulsed light exposure was confirmed with XPS, XRD, electron microscopy and Raman spectroscopy. The resulting material exhibited high activity for the hydrogen evolution reaction (HER) in acidic media, requiring merely 200 mV overpotential to reach a current density of 10 mA cm−2. Additionally, the catalyst remained highly active for HER over extended durability testing with the overpotential increasing by 28 mV following 1000 cycles. The roll-to-roll amenable fabrication of this highly-active material could be adapted for mass production of electrodes comprised of earth-abundant materials for water splitting applications.
doi_str_mv 10.1088/1361-6528/aaffac
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subjects hydrogen evolution
intense pulsed light
MoS
title Intense pulsed light, a promising technique to develop molybdenum sulfide catalysts for hydrogen evolution
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