Microporous cobaloxime-graphene composite: a reloadable non-noble metal catalyst platform for the proton reduction reaction

Ahmed B. Soliman, Rana R. Haikal, Arwa A. Abugable, Mohamed H. Alkordi*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A heterogeneous catalyst for the proton reduction reaction was constructed through immobilization of cobaloxime, in a microporous solid, atop unmodified graphene sheets through a one-pot reaction. This approach afforded a true heterogeneous catalyst to circumvent the known poor stability of cobaloximes in aqueous solutions. The composite demonstrated significant electrochemical activity and ability to reload the Co ions and with enhanced activity toward proton reduction (an onset of similar to-11 mV and a current density of 9 mA cm-2 at-0.88 V vs. RHE).

Original languageEnglish
Pages (from-to)1957-1961
Number of pages5
JournalJournal of Materials Chemistry A
Volume5
Issue number5
DOIs
Publication statusPublished - 7 Feb 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • HYDROGEN EVOLUTION
  • ORGANIC POLYMERS
  • COBALT
  • NANOMATERIALS
  • COMPLEXES
  • DESIGN
  • NICKEL
  • WATER

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