Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution
Апстракт
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.
Извор:
Journal of the Electrochemical Society, 2018, 165, 15, J3335-J3341Издавач:
- Electrochemical Soc Inc, Pennington
Финансирање / пројекти:
- Функционални, функционализовани и усавршени нано материјали (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.1149/2.0441815jes
ISSN: 0013-4651
WoS: 000450191900001
Scopus: 2-s2.0-85064963657
Институција/група
IHTMTY - 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 . .