Synthesis of rGO/Zr-MOF composite for hydrogen storage application

Nicholas M. Musyoka, Jianwei Ren, Henrietta W. Langmi, Brian C. North, Mkhulu Mathe, Dmitri Bessarabov

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

A composite material consisting of Zr-based metal organic framework (Zr-MOF) and reduced graphene oxide (rGO) was successfully synthesized by an in situ method. The aim of the study was to transfer some of the graphene's attractive properties to the MOF materials. An important observation was that the incorporation of rGO did not alter or interfere with the crystallization of the MOF material. The studies showed an increase in surface area for the rGO/Zr-MOF composite (1480 m2/g) when compared to that of pristine Zr-MOF (1116 m2/g). There was also an enhancement of the hydrogen storage capacity from 1.4 wt% to 1.8 wt% for the GO/Zr-MOF composite. This enhancement could be attributed to the synergistic contribution of interactions of rGO sheets with hydrogen as well as from the possible expansion of the pore space in the Zr-MOF induced by the presence of the graphene-like material.

Original languageEnglish
Pages (from-to)450-455
Number of pages6
JournalJournal of Alloys and Compounds
Volume724
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Hydrogen storage
  • Reduced graphene oxide (rGO)
  • Zr-MOF
  • rGO/Zr-MOF composite

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Synthesis of rGO/Zr-MOF composite for hydrogen storage application'. Together they form a unique fingerprint.

Cite this