title: High-Performance Hydrogen Evolution Electrocatalyst Derived from Ni3C Nanoparticles Embedded in a Porous Carbon Network.
abstract: In this letter, we report a facile self-foaming strategy to synthesize Ni3C nanoparticles embedded in a porous carbon network (Ni3C@PCN) by rationally incorporating a nickel salt precursor into the carbon source. As a novel hydrogen evolution reaction (HER) catalyst, the Ni3C@PCN shows superior catalytic activity with an onset potential of -65 mV, an overpotential of 262 mV to achieve 50 mA cm-2current density, a Tafel slope of 63.4 mV/dec, and durability over 12 h in acidic media. The excellent performance of the novel 3D composite material along with its low-cost merits is suggestive of great potential for scalable electrocatalytic H2production.
authors.affiliation: College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215006, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wang
authors.affiliation: College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215006, China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Cao
authors.affiliation: College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215006, China.
authors.forename: Guifu
authors.identifier: 0000-0002-8342-7768
authors.initials: G
authors.lastname: Zou
authors.affiliation: College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215006, China.
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Yi
authors.affiliation: Testing and Analysis Center, Soochow University , Suzhou 215123, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
authors.affiliation: College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215006, China.
authors.forename: Lijun
authors.identifier: 0000-0002-2304-102X
authors.initials: L
authors.lastname: Gao
keywords: Ni3C; carbon network; composites; electrocatalyst; hydrogen evolution