Black Titanium Oxide/Activated TaS2 Flakes Photoelectrode for Plasmon Assisted Hydrogen Evolution at Neutral pH at High Current Density
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F24%3A43898571" target="_blank" >RIV/44555601:13440/24:43898571 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/24:43928998 RIV/60461373:22340/24:43928998 RIV/00216208:11320/24:10484921
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/smll.202402758" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/smll.202402758</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/smll.202402758" target="_blank" >10.1002/smll.202402758</a>
Alternative languages
Result language
angličtina
Original language name
Black Titanium Oxide/Activated TaS2 Flakes Photoelectrode for Plasmon Assisted Hydrogen Evolution at Neutral pH at High Current Density
Original language description
A heterojunction photo-electrode(s) consisting of porous black titanium oxide (bTiO(2)) and electrochemically self-activated TaS2 flakes is proposed and utilized for hydrogen evolution reaction (HER). The self-activated TaS2 flakes provide abundant catalytic sites for HER and the porous bTiO(2), prepared by electrochemical anodization and subsequent reduction serves as an efficient light absorber, providing electrons for HER. Additionally, Au nanostructures are introduced between bTiO(2) and TaS2 to facilitate the charge transfer and plasmon-triggering ability of the structure created. After structure optimization, high HER catalytic activity at acidic pH and excellent HER activity at neutral pH are achieved at high current densities. In particular, with the utilization of bTiO(2)@TaS2 photoelectrode (neutral electrolyte, sunlight illumination) current densities of 250 and 500 mA cm(-2) are achieved at overpotentials of 433, and 689 mV, respectively, both exceeding the "benchmark" Pt. The addition of gold nanostructures further reduces the overpotential to 360 and 543 mV at 250 and 500 mA cm(-2), respectively. The stability of the prepared electrodes is investigated and found to be satisfying within 24 h of performance at high current densities. The proposed system offers an excellent potential alternative to Pt for the development of green hydrogen production on an industrial scale.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Small
ISSN
1613-6810
e-ISSN
1613-6829
Volume of the periodical
20
Issue of the periodical within the volume
42
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
1-11
UT code for WoS article
001244046400001
EID of the result in the Scopus database
2-s2.0-85195512116