Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles
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Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.
Кључне речи:
Acid solution / Gold / Graphene / Hydrogen evolution / Palladium / PdAu nanoparticlesИзвор:
Catalysts, 2021, 11, 4, 481-Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
DOI: 10.3390/catal11040481
ISSN: 2073-4344
WoS: 000642886000001
Scopus: 2-s2.0-85103853936
Институција/група
VinčaTY - JOUR AU - Rakočević, Lazar AU - Srejić, Irina AU - Maksić, Aleksandar AU - Golubović, Jelena AU - Štrbac, Svetlana PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9626 AB - Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential. T2 - Catalysts T1 - Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles VL - 11 IS - 4 SP - 481 DO - 10.3390/catal11040481 ER -
@article{ author = "Rakočević, Lazar and Srejić, Irina and Maksić, Aleksandar and Golubović, Jelena and Štrbac, Svetlana", year = "2021", abstract = "Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.", journal = "Catalysts", title = "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles", volume = "11", number = "4", pages = "481", doi = "10.3390/catal11040481" }
Rakočević, L., Srejić, I., Maksić, A., Golubović, J.,& Štrbac, S.. (2021). Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts, 11(4), 481. https://doi.org/10.3390/catal11040481
Rakočević L, Srejić I, Maksić A, Golubović J, Štrbac S. Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts. 2021;11(4):481. doi:10.3390/catal11040481 .
Rakočević, Lazar, Srejić, Irina, Maksić, Aleksandar, Golubović, Jelena, Štrbac, Svetlana, "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles" in Catalysts, 11, no. 4 (2021):481, https://doi.org/10.3390/catal11040481 . .