Electrochromic 2,5-Dihydroxyterephthalic Acid Linker in Metal−Organic Frameworks

0568164 - ÚFCH JH 2024 RIV DE eng J - Journal Article
Shiozawa, Hidetsugu - Melníková, Zuzana - Bastl, Zdeněk - Peterlík, H. - Kalbáč, Martin - Frank, Otakar
Electrochromic 2,5-Dihydroxyterephthalic Acid Linker in Metal−Organic Frameworks.
Advanced Photonics Research. Roč. 3, č. 4 (2022), č. článku 2100219. ISSN 2699-9293
R&D Projects: GA ČR(CZ) GA19-15217S; GA MŠMT 8F21010; GA MŠMT EF16_026/0008382; GA ČR(CZ) GX20-08633X
Grant - others:Ministerstvo školství, mládeže a tělovýchovy - GA MŠk(CZ) CZ.02.1.01/0.0/0.0/16_026/0008382
Institutional support: RVO:61388955
Keywords : density functional calculations * doping * electrochemistry
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Impact factor: 3.7, year: 2022
Method of publishing: Open access

Metal–organic frameworks (MOFs) are diverse in color owing to a large variety of molecular structures. Herein, electrochromism of M-MOF-74 (M = Mg, Mn, Co or Zn) is reported, which is a honeycomb nano-framework in which hexagonally packed 1D arrays of metal cations are coordinated with 2,5-dihydroxyterephthalic (dhtp) acid linker. Raman spectroscopy upon electrochemical doping combined with density functional theory calculations reveals redox reactions of the linker while the metal cations stay divalent as probed by X-ray photoemission spectroscopy (XPS). Excellent adhesion of the MOFs to glass allows the synthesis of quality thin films to be implemented into electrochromic devices that exhibit promising color contrast and durability.
Permanent Link: https://hdl.handle.net/11104/0339502