Accelerating charge transfer to enhance H2 evolution of defect-rich CoFe2O4 by constructing a Schottky junction

• DOI: 10.1039/d0cc05656a
• Publication Date: 2020-10-16T04:03:32Z
• Authors: Yuchao Wang; Biao Liu; Yi Liu; Chengye Song; Wenju Wang; Wenkui Li; Qingguo Feng; Yongpeng Lei
• Keywords: Overpotential

We demonstrate a charge transfer boosted hydrogen (H2) evolution of transition metal oxides via Schottky junction. The FeNi and metallic defect-rich CoFe2O4 (DCF) as well semiconducting nitrogen-doped carbon (NC), named FeNi/DCF/NC, possessed only 6.5% resistance DCF. Theoretical calculations indicate that the enhanced electron movement happened from FeNi/DCF to NC. H2 activity FeNi/DCF/NC showed 5.8-fold improvement compared DCF at overpotential 400 mV in 1.0 M KOH. This work provides an effective way enhance electrocatalytic for reaction related reactions.