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GUSMÃO, R. SOFER, Z. MARVAN, P. PUMERA, M.
Originální název
MoS2 versatile spray-coating of 3D electrodes for the hydrogen evolution reaction
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
A facile one-step MoS2 spray-coating method was applied to a range of rigid, flexible, porous and 3D printed carbon-based surfaces, yielding high loadings in MoS2 flakes. The characterization of MoS2 flakes from a commercial lubricant spray reveals up to micron-scale bulk sheets of the layered material, constituted in its majority by the semiconducting 2H polymorph, in the presence of the metallic 1T phase. Consequently, the process generates MoS2 spray-coated surfaces with improved hydrogen evolution reaction (HER) catalytic performance. In the case of carbon-based screen printed electrodes (SPE), a short-term thermal post-treatment of the MoS2 spray-coated SPE had a further beneficial effect in the HER overpotential. The MoS2 spray-coated 3D metallic meshes held the lowest HER overpotential of the series. Finally, MoS2 spray-coated 3D printed electrodes yielded improved heterogeneous charge transfer and a 500 mV shift in the required overpotential at a current density of -10 mA cm(-2). The MoS2 spray-coated 3D printed electrode displayed an abundant coverage at the inner, external and planar zones of electrodes by the MoS2 sheets, even after long-term operation conditions. These outcomes can be beneficial for future tailoring of MoS2 spray-coated surfaces and their implementation in energy conversion technologies.
Klíčová slova
BLACK PHOSPHORUS; LAYER MOS2; PERFORMANCE; NANOSHEETS; EFFICIENT
Autoři
GUSMÃO, R.; SOFER, Z.; MARVAN, P.; PUMERA, M.
Vydáno
28. 5. 2019
ISSN
2040-3372
Periodikum
Nanoscale
Ročník
11
Číslo
20
Stát
Spojené království Velké Británie a Severního Irska
Strany od
9888
Strany do
9895
Strany počet
8
URL
https://pubs.rsc.org/en/content/articlelanding/2019/NR/C9NR01876J#!divAbstract
BibTex
@article{BUT158493, author="Rui {Gusmão} and Zdeněk {Sofer} and Petr {Marvan} and Martin {Pumera}", title="MoS2 versatile spray-coating of 3D electrodes for the hydrogen evolution reaction", journal="Nanoscale", year="2019", volume="11", number="20", pages="9888--9895", doi="10.1039/c9nr01876j", issn="2040-3372", url="https://pubs.rsc.org/en/content/articlelanding/2019/NR/C9NR01876J#!divAbstract" }