title: Homonuclear Mixed-Valent Cobalt Imidazolate Framework for Oxygen-Evolution Electrocatalysis.
abstract: Herein, the synthesis and characterization of the first mixed-valent, purely cobalt-based zeolitic imidazolate framework, Co(II)3Co(III)2(C3H3N2)12 is presented. The material adopts the cubic garnet-type structure and combines high thermal stability of up to 350 °C with excellent chemical stability. Electrochemical characterization showed that the cobalt centres are redox active and efficiently support oxygen evolution, thus rendering this framework a potential candidate for single-site heterogeneous catalysis based on earth-abundant elements.
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany.|Department of Chemistry, Ludwig Maximilian University (LMU), Butenandstrasse 5-13, 81377, Munich, Germany.|Nanosystems Initiative Munich (NIM) & Center for Nanoscience (CeNS), Munich, Germany.
authors.forename: Erik A
authors.initials: EA
authors.lastname: Flügel
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany.
authors.forename: Vincent W-H
authors.initials: VW
authors.lastname: Lau
authors.affiliation: Department of Chemistry, Ludwig Maximilian University (LMU), Butenandstrasse 5-13, 81377, Munich, Germany.|Nanosystems Initiative Munich (NIM) & Center for Nanoscience (CeNS), Munich, Germany.
authors.forename: Hendrik
authors.initials: H
authors.lastname: Schlomberg
authors.affiliation: Department of Inorganic Chemistry, Rheinische Friedrich-Wilhelms Universität, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany.
authors.forename: Robert
authors.initials: R
authors.lastname: Glaum
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany. b.lotsch@fkf.mpg.de.|Department of Chemistry, Ludwig Maximilian University (LMU), Butenandstrasse 5-13, 81377, Munich, Germany. b.lotsch@fkf.mpg.de.|Nanosystems Initiative Munich (NIM) & Center for Nanoscience (CeNS), Munich, Germany. b.lotsch@fkf.mpg.de.
authors.forename: Bettina V
authors.initials: BV
authors.lastname: Lotsch
keywords: coordination polymers; electrocatalysis; metal-organic frameworks; nanoparticles