Monolithic electrode integrated of ultrathin NiFeP on 3D strutted graphene for bifunctionally efficient overall water splitting

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

9 Scopus Citations
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Author(s)

  • Rui-Qing Li
  • Bao-Lu Wang
  • Tian Gao
  • Ran Zhang
  • Chenyang Xu
  • And 6 others
  • Xiangfen Jiang
  • Jinjue Zeng
  • Yoshio Bando
  • Pengfei Hu
  • Yongle Li
  • Xue-Bin Wang

Detail(s)

Original languageEnglish
Pages (from-to)870-876
Journal / PublicationNano Energy
Volume58
Online published10 Feb 2019
Publication statusPublished - Apr 2019

Abstract

High-performance earth-abundant electrocatalysts for oxygen and hydrogen evolutions are highly desired for renewable energy but remain challenging. Herein, we have developed ultrathin NiFeP nanosheets, and merged the NiFeP with a 3D support of sponge-like strutted graphenes (SG). The synthesized NiFeP/SG, a porous monolith, shows efficient electrocatalytic activities for oxygen and hydrogen evolutions in alkaline electrolyte with low overpotentials of 218 and 115 mV, respectively. Using NiFeP/SG as direct catalytic electrodes, the overall water splitting requires a low cell voltage of 1.54 V to achieve a current of 10 mA cm−2 . The high performances result from the shifted-up d states caused by iron incorporation, the ultrathin NiFeP, and the 3D network structure of SG. Additionally, NiFeP/SG demonstrates excellent gravimetric catalytic activities, meaningful to aerospace and portables. The material opens the way to a universal robust lightweight catalytic electrode for a variety of applications in electrochemical energy storage and conversion.

Research Area(s)

  • 3D graphene network, Bimetal, Electrocatalyst, Phosphide, Porous monolithic electrode

Citation Format(s)

Monolithic electrode integrated of ultrathin NiFeP on 3D strutted graphene for bifunctionally efficient overall water splitting. / Li, Rui-Qing; Wang, Bao-Lu; Gao, Tian; Zhang, Ran; Xu, Chenyang; Jiang, Xiangfen; Zeng, Jinjue; Bando, Yoshio; Hu, Pengfei; Li, Yongle; Wang, Xue-Bin.

In: Nano Energy, Vol. 58, 04.2019, p. 870-876.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review