Electrochemically Fabricated Polypyrrole and MoSx Copolymer Films as a Highly Active Hydrogen Evolution Electrocatalyst

Wang, Tanyuan; Zhuo, Junqiao; Du, Kuangzhou; Chen, Bingbo; Zhu, Zhiwei; Shao, Yuanhua; Li, Meixian

doi:10.1002/adma.201400265

Electrochemically Fabricated Polypyrrole and MoSx Copolymer Films as a Highly Active Hydrogen Evolution Electrocatalyst

Copolymer hybrid films consisting of polypyrrole/MoSx (x ≈ 5) with significantly enhanced electrocatalytic activity for the hydrogen evolution reaction (HER) are fabricated by a one-step electrochemical copolymerization of pyrrole and (NH4)2MoS4. The films show a Tafel slope of 29 mV dec−1 and an…