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Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance†
Inorganic Chemistry Frontiers ( IF 5.934 ) Pub Date : 2019-11-18 , DOI: 10.1039/c9qi01367a
Yan-Yan Dong; Dong-Dong Ma; Xin-Tao Wu; Qi-Long Zhu

Developing earth-abundant, highly active, and durable electrocatalysts for the oxygen evolution reaction (OER) is of crucial importance for renewable energy conversion processes. Herein, we fabricated novel flower-like NiFe-layered double hydroxide nanostructures with electron-withdrawing anion intercalation and surface sulfurization via a two-step hydrothermal treatment. Benefiting from the dual-modified electronic structure of the surface active sites of NiFe-LDHs, the as-obtained catalyst showed excellent electrocatalytic activity for the OER, only demanding a low overpotential of 259 mV to achieve 10 mA cm−2 in 1.0 M KOH.
更新日期:2019-12-18

 

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