AUTHOR=Fan Chuanbin , Zhang Xiaoyin , Guo Feng , Xing Zhiyong , Wang Junli , Lin Wanying , Tan Jie , Huang Guimei , Zong Ziao 

TITLE=Design of five two-dimensional Co-metal-organic frameworks for oxygen evolution reaction and dye degradation properties

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2022.1044313

DOI=10.3389/fchem.2022.1044313

ISSN=2296-2646

ABSTRACT=Two-dimensional (2D) metal-organic frameworks (MOFs)，as oxygen evolution reaction (OER) materials, have been extensively investigated based on their advantages of large specific surface area, ultrathin thickness, well-defined metal active centers, and adjustable pore structure. Five Co-MOFs, namely, [Co(L)(4,4′-bbidpe)H2O]n [YMUN 1 (YMUN for Youjiang Medical University for Nationalities)], {[Co2(L)2(4,4′-bbibp)2]·[Co3(L)(4,4′-bbibp)]·DMAC}n (YMUN 2), [Co(L)(3,5-bip)]n (YMUN 3), [Co(L)(1,4-bimb)]n (YMUN 4) and [Co(L)(4,4′-bidpe)H2O]n (YMUN 5), have been designed and obtained based on flexible dicarboxylic acid 1,3-bis(4′-carboxylphenoxy)benzene (H2L) and rigid/flexible imidazole ligands. The frameworks of them are all 2D lamellar networks, meanwhile contain some differences in details. Their frameworks are discussed and compared, and then the properties of OER electrochemical activity and photocatalysis dye degradation were investigated.