title: Disclosing the High Activity of Ceramic Metallics in the Oxygen Evolution Reaction: Nickel Materials as a Case Study.
abstract: Here, we elucidate the activity origin of ceramic nickel electrocatalysts in the oxygen evolution reaction (OER), ranging from nitrides, sulfides, and phosphides, as a case study that may be projected on almost any ceramic metallic. Our results show that regardless of the starting material, the formation of an active (oxy)hydroxide layer, acting as the real electrocatalyst during the OER, is unavoidable. Nevertheless, the in situ transformation into highly active (oxy)hydroxides leads to the formation of active catalysts for various applications.
authors.affiliation: Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.
authors.forename: Marc
authors.initials: M
authors.lastname: Ledendecker
authors.affiliation: School of Materials Science&Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China.
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Yang
authors.affiliation: Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Antonietti
authors.affiliation: Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany. menny.shalom@mpikg.mpg.de.
authors.forename: Menny
authors.initials: M
authors.lastname: Shalom
mesh_terms: D002384:Catalysis; D002516:Ceramics; D008670:Metals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D009532:Nickel / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D033362:Powder Diffraction; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D008670:Metals; D009532:Nickel; D010100:Oxygen
keywords: ceramic metallics; electrocatalysis; metallic alloys; oxygen evolution reaction; water splitting