Organization of Cooperating Aluminum Pairs in Ferrierite Evidenced by Luminescence Quenching

0570997 - ÚFCH JH 2024 RIV US eng J - Journal Article
Olszówka, Joanna Elżbieta - Kubát, Pavel - Dědeček, Jiří - Tabor, Edyta
Organization of Cooperating Aluminum Pairs in Ferrierite Evidenced by Luminescence Quenching.
Journal of Physical Chemistry C. Roč. 127, č. 15 (2023), s. 7344-7351. ISSN 1932-7447. E-ISSN 1932-7455
R&D Projects: GA ČR(CZ) GA19-02901S; GA ČR GA22-06737S
Institutional support: RVO:61388955
Keywords : transition metals * Luminescence * Zeolites
OECD category: Physical chemistry
Impact factor: 3.7, year: 2022
Method of publishing: Open access

We show that four cooperating Al atoms located at the two neighboring six-membered (6-MR) rings in the ferrierite framework can be readily discerned by luminescence studies. Thus, luminescent Zn(II) cations accommodated by one aluminum pair of the 6-MR ring can be effectively quenched by neighboring Co(II) ions stabilized by the second ring. Quenching occurs via the energy transfer mechanism and allows estimation of the critical radius of Zn(II)–Co(II) interactions. This points to the appropriate geometry and distance of the transition metal ions accommodated within zeolite, providing direct evidence of the four-aluminum atom arrangement in the ferrierite framework.
Permanent Link: https://hdl.handle.net/11104/0342322