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Study of the Synthesis of Multi-Cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Co-Ni-O Aerogels and Their Catalytic Activity in the Dry Reforming of Methane

CIHLÁŘ, J. TKACHENKO, S. BEDNAŘÍKOVÁ, V. CIHLÁŘ, J. ČÁSTKOVÁ, K. TRUNEC, M. ČELKO, L.

Original Title

Study of the Synthesis of Multi-Cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Co-Ni-O Aerogels and Their Catalytic Activity in the Dry Reforming of Methane

Type

journal article in Web of Science

Language

English

Original Abstract

Dense multi-cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Ni-Co-O oxide aerogels were prepared by epoxide-driven sol-gel synthesis. Catalysts for dry reformation of methane, Sm2O3/Co, Sm2O3/Ni, Al2O3/Co, Al2O3/Ni, Al2O3/Co, and Ni were prepared by reduction of aerogels with hydrogen and their catalytic activities and C-deposition during dry reformation of methane were tested. Catalytic tests showed high methane conversion (93-98%) and C-deposition (0.01-4.35 mg C/gcat.h). The highest content of C-deposits after catalytic tests was determined for Al2O3/Co and Al2O3/Ni catalysts, which was related to the formation of Al alloys with Co and Ni. A uniform distribution of Co0 and Ni0 nanoparticles (in the form of a CoNi alloy) was found only for the Al2O3/Co and Ni catalysts, which showed the highest activity as well as low C deposition.

Keywords

multi-cationic aerogels; dry reformation of methane; cobalt; nickel; nanoparticles; carbon deposition

Authors

CIHLÁŘ, J.; TKACHENKO, S.; BEDNAŘÍKOVÁ, V.; CIHLÁŘ, J.; ČÁSTKOVÁ, K.; TRUNEC, M.; ČELKO, L.

Released

1. 5. 2024

Publisher

MDPI

Location

BASEL

ISBN

2310-2861

Periodical

Gels

Year of study

10

Number

5

State

Swiss Confederation

Pages count

18

URL

https://www.mdpi.com/2310-2861/10/5/328

BibTex

@article{BUT189992,
  author="Jaroslav {Cihlář} and Serhii {Tkachenko} and Vendula {Bednaříková} and Jaroslav {Cihlář} and Klára {Částková} and Martin {Trunec} and Ladislav {Čelko}",
  title="Study of the Synthesis of Multi-Cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Co-Ni-O Aerogels and Their Catalytic Activity in the Dry Reforming of Methane",
  journal="Gels",
  year="2024",
  volume="10",
  number="5",
  pages="18",
  doi="10.3390/gels10050328",
  issn="2310-2861",
  url="https://www.mdpi.com/2310-2861/10/5/328"
}