Iron–Cobalt Phosphomolybdate with High Electrocatalytic Activity for Oxygen Evolution Reaction. Issue 20 (21st September 2017)

• Record Type: Journal Article
• Authors: Zhai, Haoying; Gao, Taotao; Qi, Ting; Zhang, Yajie; Zeng, Guangfeng; Xiao, Dan
• Is Part Of: Chemistry, an Asian journal. Volume 12:Issue 20(2017)
• Page Start: 2694
• Page End: 2702
• Publication Date: 2017-09-21
• Subjects: electrochemistry -- nanoparticles -- polyoxometalates -- transition metals -- water splitting; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201700905
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: Iron–cobalt phosphomolybdate (FeCoPM12 ) nanoparticles, which are highly efficient catalytic materials for the oxygen evolution reaction (OER), were fabricated through a coprecipitation route. Compared with iron–cobalt hydroxide and state‐of‐the‐art RuO2 electrocatalysts, the as‐prepared FeCoPM12 sample exhibited robust OER catalytic activity with a low overpotential of 258 mV at a current density of 10 mA cm −2 and a small Tafel slope of 33 mV dec −1 . Moreover, the as‐synthesized sample presented preferable stability and after 10 h at 1.52 V the current density degraded by merely 8.3 %. This is ascribed to the high electrochemical stability and small porous structure of FeCoPM12, which provide effective electron transmission and improve the catalytic performance for OER in alkaline media. Abstract : Coworking metals : FeCoPM12 nanoparticles, with high electrochemical stability and catalytic performance for the oxygen evolution reaction (OER), were fabricated through a coprecipitation route. Compared with iron–cobalt hydroxide and state‐of‐the‐art RuO2 electrocatalysts, the FeCoPM12 catalyst possesses a low overpotential of 258 mV at a current density of 10 mA cm −2 and a small Tafel slope of 33 mV dec −1 (see figure).