Doped phosphide is promising in earth-abundant element based catalysts for hydrogen evolution reaction (HER). Here we employ ammonium hypophosphite (NH 4 H 2 PO 2 ) to synthesize a novel parallel doped catalyst, nitrogen doped molybdenum phosphide nanoparticles (NPs) supported on nitrogen doped carbon nanotubes (N-MoP/N-CNTs). The NH 4 H 2 PO 2 as a bifunctional agent severs as both phosphidation agent and nitrogen source, which makes the synthetic route simple and efficient. The as-obtained parallel doped N-MoP/N-CNTs show an overpotential of 103±5 mV at 10 mA cm −2 , which is 140 mV lower than that of MoP NPs. The enhanced HER performance is attributed to the electronic effect by doped MoP and CNTs supports. This work provides a facile route to synthesize doped phosphides for the potential applications in hydrogen energy.
Bibliographical noteFunding Information:
Acknowledgements This work was supported by the National Key Research and Development Program of China (2017YFA0206500), the National Natural Science Foundation of China (21671014) and the Fundamental Research Funds for the Central Universities (buctrc201522).
© 2018, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.
- ammonium hypophosphite
- bifunctional precursor
- hydrogen evolution reaction
- nitrogen-doped carbon nanotubes
- nitrogen-doped MoP
ASJC Scopus subject areas
- Materials Science(all)