Publication detail

Remarkably stable metal-organic frameworks on an inert substrate: M-TCNQ on graphene (M = Ni, Fe, Mn)

JAKUB, Z. KUROWSKÁ, A. HERICH, O. ČERNÁ, L. KORMOŠ, L. SHAHSAVAR, A. PROCHÁZKA, P. ČECHAL, J.

Original Title

Remarkably stable metal-organic frameworks on an inert substrate: M-TCNQ on graphene (M = Ni, Fe, Mn)

Type

journal article in Web of Science

Language

English

Original Abstract

Potential applications of 2D metal-organic frameworks (MOF) require the frameworks to be monophase and well-defined at the atomic scale, to be decoupled from the supporting substrate, and to remain stable at the application conditions. Here,we present three systems meeting this elusive set of requirements: M-TCNQ (M = Ni, Fe, Mn) on epitaxial graphene/Ir(111). We study the systems experimentally by scanning tunneling microscopy, low energy electron microscopy and x-ray photoelectron spectroscopy. When synthesized on graphene, the 2D M-TCNQ MOFs are monophase with M1(TCNQ)1 stoichiometry, no alternative structure was observed with slight variation of the preparation protocol. We further demonstrate a remarkable chemical and thermal stability of TCNQ-based 2D MOFs: All the studied systems survive exposure to ambient conditions, with Ni-TCNQ doing so without any significant changes to its atomic-scale structure or chemical state. Thermally, the most stable system is Fe-TCNQ which remains stable above 500 °C, while all the tested MOFs survive heating to 250 °C. Overall, the modular M-TCNQ/graphene system combines the atomic-scale definition required for fundamental studies with the robustness and stability needed for applications, thus we consider it an ideal model for research in single atom catalysis, spintronics or high-density storage media.

Keywords

SINGLE-ATOM CATALYSTS; OXYGEN REDUCTION; CHARGE-TRANSFER; NETWORKS; MONOLAYER

Authors

JAKUB, Z.; KUROWSKÁ, A.; HERICH, O.; ČERNÁ, L.; KORMOŠ, L.; SHAHSAVAR, A.; PROCHÁZKA, P.; ČECHAL, J.

Released

7. 7. 2022

Publisher

Royal Society of Chemistry

ISBN

2040-3372

Periodical

Nanoscale

Year of study

14

Number

26

State

United Kingdom of Great Britain and Northern Ireland

Pages from

9507

Pages to

9515

Pages count

9

URL

https://pubs.rsc.org/en/content/articlelanding/2022/NR/D2NR02017C

Full text in the Digital Library

http://hdl.handle.net/11012/208211

BibTex

@article{BUT178050,
  author="Zdeněk {Jakub} and Anna {Kurowská} and Ondrej {Herich} and Lenka {Černá} and Lukáš {Kormoš} and Azin {Trllová Shahsavar} and Pavel {Procházka} and Jan {Čechal}",
  title="Remarkably stable metal-organic frameworks on an inert substrate: M-TCNQ on graphene (M = Ni, Fe, Mn)",
  journal="Nanoscale",
  year="2022",
  volume="14",
  number="26",
  pages="9507--9515",
  doi="10.1039/d2nr02017c",
  issn="2040-3372",
  url="https://pubs.rsc.org/en/content/articlelanding/2022/NR/D2NR02017C"
}