Structure of Imidazolidyl Co(II) Coordination Polymer and Catalytic Properties of Thermal Conversion Products

Publication date: Available online 19 February 2020Source: Inorganica Chimica ActaAuthor(s): Xiaofei Cheng, Jinsong Hu, Jing ZhangAbstractA new coordination polymer {[Co(BIDPE)(suc)]·3H2O}n (1) was obtained through hydrothermal reaction of a V-shaped semirigid imidazole derivative BIDPE (BIDPE = 4,4'-bis(imidazol-1-yl)diphenyl ether) and suc (suc= succinic acid). Complex 1 exhibits 3D network, in which two types of suc2- link Co(II) to form meso-helical chains. Further more, the catalytic properties of calcined products of complex 1 in air or N2 have been studied in-depth, Co3O4 (1-550) has excellent reduction property for 4-nitrophenol, the conversion is up to 90% after 18 minutes; while the CoO/Co/C composite (1-800) has good electrochemical oxygen/hydrogen evolution performances (η10 = 265 mV for HER, η10 =395 mV for OER).Graphical abstractA new 3D network coordination polymers {[Co(BIDPE)(suc)]·3H2O}n (1) was obtained through hydrothermal reaction of a V-shaped imidazole derivative BIDPE. The complex can be converted into Co3O4 or CoO/Co/C composite by calcining in air or N2 conditions. The synthesized Co3O4 has excellent reduction property for 4-nitrophenol; while the CoO/Co/C composite has good electrochemical oxygen/hydrogen evolution performances.

Source: Inorganica Chimica Acta - February 20, 2020 Category: Chemistry Source Type: research