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Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution

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2018
bitstream_13975.pdf (1.102Mb)
Authors
Štrbac, Svetlana
Srejić, Irina
Rakočević, Zlatko Lj.
Article (Published version)
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Abstract
Iridium nanoislands are spontaneously deposited on Au(111) from (1 mMIrCl(3) center dot xH(2)O + 0.5 MH2SO4) depositing solution. Atomic Force Microscopy images of the obtained Ir/Au(111) bimetallic surfaces show that gold surface is fully covered with nanosized Ir islands after only 3 min of deposition. X-Ray Photoelectron Spectroscopy analysis shows that the deposit consists of a mixture of adsorbed hydrated IrCl3 and to a lesser extent of Ir(OH)(3). Cyclic Voltammetry characterization in 0.5 M H2SO4 solution does not show clear Hupd region prior to hydrogen evolution reaction (HER). Linear Sweep Voltammetry measurements show pronounced catalysis of HER on Ir modified Au(111) surface compared to bare Au(111). With prolonged Ir deposition, the observed limited increasing activity for HER of Ir/Au(111) surfaces is in accordance with the limited Ir/Au(111) surface morphology changes.
Source:
Journal of the Electrochemical Society, 2018, 165, 15, J3335-J3341
Publisher:
  • Electrochemical Soc Inc, Pennington
Funding / projects:
  • Functional, Functionalized and Advanced Nanomaterials (RS-45005)

DOI: 10.1149/2.0441815jes

ISSN: 0013-4651

WoS: 000450191900001

Scopus: 2-s2.0-85064963657
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14
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2355
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  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2355
AB  - Iridium nanoislands are spontaneously deposited on Au(111) from (1 mMIrCl(3) center dot xH(2)O + 0.5 MH2SO4) depositing solution. Atomic Force Microscopy images of the obtained Ir/Au(111) bimetallic surfaces show that gold surface is fully covered with nanosized Ir islands after only 3 min of deposition. X-Ray Photoelectron Spectroscopy analysis shows that the deposit consists of a mixture of adsorbed hydrated IrCl3 and to a lesser extent of Ir(OH)(3). Cyclic Voltammetry characterization in 0.5 M H2SO4 solution does not show clear Hupd region prior to hydrogen evolution reaction (HER). Linear Sweep Voltammetry measurements show pronounced catalysis of HER on Ir modified Au(111) surface compared to bare Au(111). With prolonged Ir deposition, the observed limited increasing activity for HER of Ir/Au(111) surfaces is in accordance with the limited Ir/Au(111) surface morphology changes.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution
VL  - 165
IS  - 15
SP  - J3335
EP  - J3341
DO  - 10.1149/2.0441815jes
ER  - 
@article{
author = "Štrbac, Svetlana and Srejić, Irina and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Iridium nanoislands are spontaneously deposited on Au(111) from (1 mMIrCl(3) center dot xH(2)O + 0.5 MH2SO4) depositing solution. Atomic Force Microscopy images of the obtained Ir/Au(111) bimetallic surfaces show that gold surface is fully covered with nanosized Ir islands after only 3 min of deposition. X-Ray Photoelectron Spectroscopy analysis shows that the deposit consists of a mixture of adsorbed hydrated IrCl3 and to a lesser extent of Ir(OH)(3). Cyclic Voltammetry characterization in 0.5 M H2SO4 solution does not show clear Hupd region prior to hydrogen evolution reaction (HER). Linear Sweep Voltammetry measurements show pronounced catalysis of HER on Ir modified Au(111) surface compared to bare Au(111). With prolonged Ir deposition, the observed limited increasing activity for HER of Ir/Au(111) surfaces is in accordance with the limited Ir/Au(111) surface morphology changes.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution",
volume = "165",
number = "15",
pages = "J3335-J3341",
doi = "10.1149/2.0441815jes"
}
Štrbac, S., Srejić, I.,& Rakočević, Z. Lj.. (2018). Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 165(15), J3335-J3341.
https://doi.org/10.1149/2.0441815jes
Štrbac S, Srejić I, Rakočević ZL. Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution. in Journal of the Electrochemical Society. 2018;165(15):J3335-J3341.
doi:10.1149/2.0441815jes .
Štrbac, Svetlana, Srejić, Irina, Rakočević, Zlatko Lj., "Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution" in Journal of the Electrochemical Society, 165, no. 15 (2018):J3335-J3341,
https://doi.org/10.1149/2.0441815jes . .

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