Structurally controlled layered Ni 3 C/graphene hybrids using cyano-bridged coordination polymers

Mohamed B. Zakaria, Haibo Tan, Jeonghun Kim, Ahmad Yacine Badjah, Mu Naushad, Mohamed Habila, Saikh Wabaidur, Zeid A. Alothman, Yusuke Yamauchi, Jianjian Lin

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The wide range of oxygen-containing functional groups on the basal planes and edges of graphene oxide (GO) facilitate the anchoring of active metal ions on its surface. Previously, we have shown that these active centers allow the in situ crystallization of cyano-bridged Ni-based coordination polymers (Ni-CP) as nanoflakes on the surface of GO sheets (Angew. Chem. Int. Ed., 2016, 55, 8426). Here, in this work, by extending our previous concept, we demonstrate that Ni-CP-coated GO sheets can be made to self-assemble to form various multi-layered hybrid structures (Ni-CP/GO) by controlling the composition ratios. Ni 3 C/rGO with the original morphology was successfully prepared by converting the Ni-CP to Ni 3 C in the space between the graphene sheets by thermal treatment in an inert atmosphere. The electrochemical analyses reveal that the optimized Ni 3 C/rGO hybrid exhibits superior electrocatalytic performance for the oxygen reduction reaction (ORR) with good durability and stability.

Original languageEnglish
Pages (from-to)74-80
Number of pages7
JournalElectrochemistry Communications
Volume100
DOIs
Publication statusPublished - 2019 Mar

Bibliographical note

Funding Information:
The authors are grateful to the Deanship of Scientific Research, King Saud University for funding through Vice Deanship of Scientific Research Chairs.

Publisher Copyright:
© 2019

All Science Journal Classification (ASJC) codes

  • Electrochemistry

Fingerprint

Dive into the research topics of 'Structurally controlled layered Ni <sub>3</sub> C/graphene hybrids using cyano-bridged coordination polymers'. Together they form a unique fingerprint.

Cite this