Publication detail

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.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

15. 2. 2024

Publisher

ELSEVIER SCIENCE SA

Location

LAUSANNE

ISBN

1873-3212

Periodical

CHEMICAL ENGINEERING JOURNAL

Year of study

482

Number

148959

State

Swiss Confederation

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S1385894724004443?via%3Dihub

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="148959",
  pages="9",
  doi="10.1016/j.cej.2024.148959",
  issn="1873-3212",
  url="https://www.sciencedirect.com/science/article/pii/S1385894724004443?via%3Dihub"
}