Detail publikace

Top-down Surfactant-Free Synthesis of Supported Palladium-Nanostructured Catalysts

SCHOTT, C. SCHNEIDER, P. SADRAOUI, K. SONG, K. GARLYYEV, B. WATZELE, S. MICHALIČKA, J. MACÁK, J. VIOLA, A. MAILLARD, F. SENYSHYN, A. FISCHER, J. BANDARENKA, A. GUBANOVA, E.

Originální název

Top-down Surfactant-Free Synthesis of Supported Palladium-Nanostructured Catalysts

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Nanostructured palladium (Pd) is a universal catalyst that is widely used in applications ranging from catalytic converters of combustion engine cars to hydrogenation catalysts in industrial processes. Standard protocols for synthesizing such nanoparticles (NPs) typically use bottom-up approaches. They utilize special and often expensive physical techniques or wet-chemical methods requiring organic surfactants. These surfactants should often be removed before catalytic applications. In this article, the synthesis of Pd NPs immobilized on carbon support by electrochemical erosion without using any surfactants or toxic materials is reported. The Pd NPs synthesis essentially relies on a Pd bulk pretreatment, which causes material embrittlement and allows the erosion process to evolve more efficiently, producing homogeneously distributed NPs on the support. Moreover, the synthesized catalyst is tested for hydrogen evolution reaction. The activity evaluations identify optimal synthesis parameters related to the erosion procedure. The electrocatalytic properties of the Pd NPs produced with sizes down to 6.4 +/- 2.9 nm are compared with a commercially available Pd/C catalyst. The synthesized catalyst outperforms the commercial catalyst within all properties, like specific surface area, geometric activity, mass activity, specific activity, and durability. A surfactant-free top-down approach, called "electrochemical erosion", allows the fabrication of palladium (Pd) nanoparticles (NPs) supported on Vulcan carbon. Crucially, a Pd wire pretreatment is identified as the essential step to synthesize NPs with sizes below 10 nm. The synthesized Pd/C catalysts are thoroughly analyzed for their structure, morphology, chemical composition, and electrochemical activity toward the hydrogen evolution reactions.image (c) 2024 WILEY-VCH GmbH

Klíčová slova

electrochemical erosion; hydrogen embrittlement; hydrogen evolution reaction; nanoparticles; palladium

Autoři

SCHOTT, C.; SCHNEIDER, P.; SADRAOUI, K.; SONG, K.; GARLYYEV, B.; WATZELE, S.; MICHALIČKA, J.; MACÁK, J.; VIOLA, A.; MAILLARD, F.; SENYSHYN, A.; FISCHER, J.; BANDARENKA, A.; GUBANOVA, E.

Vydáno

1. 3. 2024

Nakladatel

WILEY

Místo

HOBOKEN

ISSN

2688-4046

Periodikum

SMALL SCIENCE

Ročník

4

Číslo

3

Stát

Spojené státy americké

Strany počet

11

URL

https://onlinelibrary.wiley.com/doi/10.1002/smsc.202300241

BibTex

@article{BUT188958,
  author="Christian M. {Schott} and Peter M. {Schneider} and Kais {Sadraoui} and Kun-Ting {Song} and Batyr {Garlyyev} and Sebastian {Watzele} and Jan {Michalička} and Jan {Macák} and Arnaud {Viola} and Frederic {Maillard} and Anatoliy {Senyshyn} and Johannes A. {Fischer} and Aliaksandr S. {Bandarenka} and Elena L. {Gubanova}",
  title="Top-down Surfactant-Free Synthesis of Supported Palladium-Nanostructured Catalysts",
  journal="SMALL SCIENCE",
  year="2024",
  volume="4",
  number="3",
  pages="11",
  doi="10.1002/smsc.202300241",
  issn="2688-4046",
  url="https://onlinelibrary.wiley.com/doi/10.1002/smsc.202300241"
}