Autocatalytic surface explosion chemistry of 2D metal-organic frameworks

0549996 - FZÚ 2022 RIV US eng J - Journal Article
Wäckerlin, C. - Ernst, Karl-Heinz
Autocatalytic surface explosion chemistry of 2D metal-organic frameworks.
Journal of Physical Chemistry C. Roč. 125, č. 24 (2021), s. 13343-13349. ISSN 1932-7447. E-ISSN 1932-7455
Institutional support: RVO:68378271
Keywords : 2D MOF * on-surface chemistry * magnetism
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.177, year: 2021
Method of publishing: Limited access
https://doi.org/10.1021/acs.jpcc.1c03809

Metal–organic frameworks are a combination of inorganic constituents and organic ligands with a high degree of variability which are, as coordination compounds in homogeneous catalysis, potentially highly selective heterogeneous catalysts. The synthesis and thermal stability of monolayer thin Cu-, Ni-, and Fe-squarate 2D MOFs are studied using X-ray photoelectron spectroscopy, scanning tunneling microscopy, and temperature-programmed reaction spectroscopy on a Cu(100) surface in ultrahigh vacuum. Highly ordered 2D squarate MOFs are obtained by mild annealing of squarate multilayers. Upon annealing at higher temperatures, the Ni- and Fe-squarate layers undergo autocatalytic surface explosion chemistry with carbon monoxide as a desorbing product in a very narrow temperature interval. Despite the different stabilities of Ni- and Fe-based MOFs, mixed {Ni + Fe}-MOFs also decompose in a narrow single temperature interval.
Permanent Link: http://hdl.handle.net/11104/0326146