Detail publikačního výsledku

Synergistic effect of Pd single atoms and nanoparticles deposited on carbon supports by ALD boosts alkaline hydrogen evolution reaction

BAWAB, B.; THALLURI, S.; KOLÍBALOVÁ, E.; ZAZPE MENDIOROZ, R.; JELÍNEK, L.; RODRIGUEZ PEREIRA, J.; MACÁK, J.

Originální název

Synergistic effect of Pd single atoms and nanoparticles deposited on carbon supports by ALD boosts alkaline hydrogen evolution reaction

Anglický název

Synergistic effect of Pd single atoms and nanoparticles deposited on carbon supports by ALD boosts alkaline hydrogen evolution reaction

Druh

Článek WoS

Originální abstrakt

The synergistic effects between carbon supports and noble metal species of an electrocatalyst are known to effectively boost the alkaline hydrogen evolution reaction (HER). Herein, Atomic Layer Deposition (ALD) was employed to decorate carbon papers with Pd species comprising single atoms (SAs) and nanoparticles (NPs). Transmission electron microscopy analysis revealed the metallic nature and coexistence of Pd as SAs and NPs. The results of X-ray photoelectron spectroscopy supported the evidenced SA species, manifested as the Pd+2. An increase in the electrochemical active surface area from 12.98 to 413.48 cm -2 was evidenced with increasing ALD cycles from 30 to 300c Pd and remained unchanged until 600c Pd. The exceptional overpotential for CP 600c Pd exhibits the lowest value of 4.55 mV, compared to previous reports for Pd electrocatalysts in a nonacidic environment, and confirms the synergistic effect of Pd SAs and NPs that plays a major role in enhancing alkaline HER.

Anglický abstrakt

The synergistic effects between carbon supports and noble metal species of an electrocatalyst are known to effectively boost the alkaline hydrogen evolution reaction (HER). Herein, Atomic Layer Deposition (ALD) was employed to decorate carbon papers with Pd species comprising single atoms (SAs) and nanoparticles (NPs). Transmission electron microscopy analysis revealed the metallic nature and coexistence of Pd as SAs and NPs. The results of X-ray photoelectron spectroscopy supported the evidenced SA species, manifested as the Pd+2. An increase in the electrochemical active surface area from 12.98 to 413.48 cm -2 was evidenced with increasing ALD cycles from 30 to 300c Pd and remained unchanged until 600c Pd. The exceptional overpotential for CP 600c Pd exhibits the lowest value of 4.55 mV, compared to previous reports for Pd electrocatalysts in a nonacidic environment, and confirms the synergistic effect of Pd SAs and NPs that plays a major role in enhancing alkaline HER.

Klíčová slova

Atomic Layer Deposition; Pd single atom; Pd nanoparticles; Synergistic effect; Hydrogen evolution reaction

Klíčová slova v angličtině

Atomic Layer Deposition; Pd single atom; Pd nanoparticles; Synergistic effect; Hydrogen evolution reaction

Autoři

BAWAB, B.; THALLURI, S.; KOLÍBALOVÁ, E.; ZAZPE MENDIOROZ, R.; JELÍNEK, L.; RODRIGUEZ PEREIRA, J.; MACÁK, J.

Rok RIV

2025

Vydáno

15.02.2024

Nakladatel

Elsevier

Místo

LAUSANNE

ISSN

1873-3212

Periodikum

Chemical Engineering Journal

Svazek

482

Číslo

2

Stát

Švýcarská konfederace

Strany od

1

Strany do

9

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S1385894724004443

Plný text v Digitální knihovně

http://hdl.handle.net/11012/250003

BibTex

@article{BUT188930,
  author="Bilal {Bawab} and Sitaramanjaneya Mouli {Thalluri} and Eva {Kolíbalová} and Raúl {Zazpe Mendioroz} and Luděk {Jelínek} and Jhonatan {Rodriguez Pereira} and Jan {Macák}",
  title="Synergistic effect of Pd single atoms and nanoparticles deposited on carbon supports by ALD boosts alkaline hydrogen evolution reaction",
  journal="Chemical Engineering Journal",
  year="2024",
  volume="482",
  number="2",
  pages="1--9",
  doi="10.1016/j.cej.2024.148959",
  issn="1385-8947",
  url="https://www.sciencedirect.com/science/article/pii/S1385894724004443"
}

Dokumenty

1-s2.0-S1385894724004443-main