Hydrothermally/electrochemically decorated FeSe on Ni-foam electrode: An efficient bifunctional electrocatalysts for overall water splitting in an alkaline medium
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43933945" target="_blank" >RIV/60461373:22310/20:43933945 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0360319920325891" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0360319920325891</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijhydene.2020.07.055" target="_blank" >10.1016/j.ijhydene.2020.07.055</a>
Alternative languages
Result language
angličtina
Original language name
Hydrothermally/electrochemically decorated FeSe on Ni-foam electrode: An efficient bifunctional electrocatalysts for overall water splitting in an alkaline medium
Original language description
A new hybrid catalyst based on Ni foam (NF) and FeSe was prepared by a facial hydrothermal method, in which Se-decorated NF was subsequently electrochemically doped by Fe. Binder-free catalyst containing electrodes were directly tested for the hydrogen and oxygen evolution reaction (HER/OER). The FeSe/NF electrode displayed an OER current density of 100 mA cm(-2) at potential of 1.42 V, and a relatively small Tafel slope of 109 mV dec(-1) in a 1 M KOH solution. Also, FeSe/NF electrode exhibited reasonable HER overpotential of 200 mV at 10 mAcm(-2) current density with Tafel slope of 145 mV dec(-1). The XRD and TEM studies revealed that the formation of heterogeneous interfaces of NiSe2 and FeSe2, generated more active sites that can promote better ions and electron transport in the electrode/electrolyte interfaces. Furthermore, HRTEM analysis indicates that FeSe2 rich in Se vacancy defects can be created with suitable M - O and M - H bond for better OER and HER performance, respectively. In a-two electrode alkaline water electrolyzer, current densities of 10 mA cm(-2) and 50 mA cm(-2) were obtained at cell voltages of 1.52 V and 1.85 V, respectively, using pure FeSe-NF as both the cathode and anode. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN
0360-3199
e-ISSN
1879-3487
Volume of the periodical
45
Issue of the periodical within the volume
51
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
27182-27192
UT code for WoS article
000578042500051
EID of the result in the Scopus database
2-s2.0-85088954199