Details

Autor(en) / Beteiligte

• Li, Siwen
• Peng, Sijia
• Huang, Linsong
• Cui, Xiaoqi
• Al-Enizi, Abdullah M
• Zheng, Gengfeng

Titel

Carbon-Coated Co3+-Rich Cobalt Selenide Derived from ZIF-67 for Efficient Electrochemical Water Oxidation

Ist Teil von

• ACS applied materials & interfaces, 2016-08, Vol.8 (32), p.20534-20539

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Oxygen evolution reaction (OER) electrocatalysts are confronted with challenges such as sluggish kinetics, low conductivity, and instability, restricting the development of water splitting. In this study, we report an efficient Co3+-rich cobalt selenide (Co0.85Se) nanoparticles coated with carbon shell as OER electrocatalyst, which are derived from zeolitic imidazolate framework (ZIF-67) precursor. It is proposed that the organic ligands in the ZIF-67 can effectively enrich and stabilize the Co3+ ions in the inorganic–organic frameworks and subsequent carbon-coated nanoparticles. In alkaline media, the catalyst exhibits excellent OER performances, which are attributed to its abundant active sites, high conductivity, and superior kinetics.