Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands
Apstrakt
Pd/Pt(poly) and Rh/Pt(poly) bimetallic electrodes prepared by spontaneous deposition of Pd and Rh nanoislands on Pt(poly) at submonolayer coverage were explored as catalysts for hydrogen evolution reaction (HER) in alkaline media. Characterization of bimetallic surfaces was performed ex situ by height and phase AFM imaging and in situ by cyclic voltammetry. HER was investigated by linear sweep voltammetry in 0.1 M NaOH. Both Pd/Pt(poly) and Rh/Pt(poly) surfaces exhibited an enhanced catalysis for HER with respect to bare Pt(poly), which is explained by a strong synergistic electronic effect of platinum substrate on the deposited Pd or Rh nanoislands. This electronic effect leads to the lowering of a binding energy of adsorbed hydrogen intermediate and consequently to the lowering of the overpotential for HER. (C) 2013 Elsevier Ltd. All rights reserved.
Ključne reči:
Platinum / Palladium / Rhodium / AFM / Hydrogen evolutionIzvor:
Electrochimica Acta, 2014, 117, 336-343Finansiranje / projekti:
- Funkcionalni, funkcionalizovani i usavršeni nano materijali (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.1016/j.electacta.2013.11.142
ISSN: 0013-4686; 1873-3859
WoS: 000332812300045
Scopus: 2-s2.0-84891606338
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Smiljanić, Milutin Lj. AU - Rakočević, Zlatko Lj. AU - Maksić, Aleksandar AU - Štrbac, Svetlana PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5925 AB - Pd/Pt(poly) and Rh/Pt(poly) bimetallic electrodes prepared by spontaneous deposition of Pd and Rh nanoislands on Pt(poly) at submonolayer coverage were explored as catalysts for hydrogen evolution reaction (HER) in alkaline media. Characterization of bimetallic surfaces was performed ex situ by height and phase AFM imaging and in situ by cyclic voltammetry. HER was investigated by linear sweep voltammetry in 0.1 M NaOH. Both Pd/Pt(poly) and Rh/Pt(poly) surfaces exhibited an enhanced catalysis for HER with respect to bare Pt(poly), which is explained by a strong synergistic electronic effect of platinum substrate on the deposited Pd or Rh nanoislands. This electronic effect leads to the lowering of a binding energy of adsorbed hydrogen intermediate and consequently to the lowering of the overpotential for HER. (C) 2013 Elsevier Ltd. All rights reserved. T2 - Electrochimica Acta T1 - Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands VL - 117 SP - 336 EP - 343 DO - 10.1016/j.electacta.2013.11.142 ER -
@article{ author = "Smiljanić, Milutin Lj. and Rakočević, Zlatko Lj. and Maksić, Aleksandar and Štrbac, Svetlana", year = "2014", abstract = "Pd/Pt(poly) and Rh/Pt(poly) bimetallic electrodes prepared by spontaneous deposition of Pd and Rh nanoislands on Pt(poly) at submonolayer coverage were explored as catalysts for hydrogen evolution reaction (HER) in alkaline media. Characterization of bimetallic surfaces was performed ex situ by height and phase AFM imaging and in situ by cyclic voltammetry. HER was investigated by linear sweep voltammetry in 0.1 M NaOH. Both Pd/Pt(poly) and Rh/Pt(poly) surfaces exhibited an enhanced catalysis for HER with respect to bare Pt(poly), which is explained by a strong synergistic electronic effect of platinum substrate on the deposited Pd or Rh nanoislands. This electronic effect leads to the lowering of a binding energy of adsorbed hydrogen intermediate and consequently to the lowering of the overpotential for HER. (C) 2013 Elsevier Ltd. All rights reserved.", journal = "Electrochimica Acta", title = "Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands", volume = "117", pages = "336-343", doi = "10.1016/j.electacta.2013.11.142" }
Smiljanić, M. Lj., Rakočević, Z. Lj., Maksić, A.,& Štrbac, S.. (2014). Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands. in Electrochimica Acta, 117, 336-343. https://doi.org/10.1016/j.electacta.2013.11.142
Smiljanić ML, Rakočević ZL, Maksić A, Štrbac S. Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands. in Electrochimica Acta. 2014;117:336-343. doi:10.1016/j.electacta.2013.11.142 .
Smiljanić, Milutin Lj., Rakočević, Zlatko Lj., Maksić, Aleksandar, Štrbac, Svetlana, "Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands" in Electrochimica Acta, 117 (2014):336-343, https://doi.org/10.1016/j.electacta.2013.11.142 . .