Cobalt Oxide Encapsulated in C2N-h2D Network Polymer as a Catalyst for Hydrogen Evolution

Javeed Mahmood, Sun Min Jung, Seok Jin Kim, Jungmin Park, Jung Woo Yoo, Jong Beom Baek

Research output: Contribution to journalArticlepeer-review

132 Scopus citations


With cobalt oxides as promising catalysts for hydrogen generation, 2D network polymer-supported cobalt-oxide catalysts with good crystallinity are highly anticipated to enhance catalytic performance. Here we report the fabrication of a 2D nitrogenated network polymer-encapsulated cobalt-oxide (Co@C2N) catalyst via an in situ solvothermal synthesis. Co@C2N exhibits outstanding catalytic activities for hydrogen (H2) generation from the hydrolysis of alkaline sodium borohydride (NaBH4) solutions. The rate of maximum hydrogen generation is comparable to the best reported values for catalysts containing other noble metals in alkaline solutions. Furthermore, Co@C2N can also catalyze the in situ reduction of a nitro group into an amino group (4-nitrophenol to 4-aminophenol) in the presence of NaBH4. The origin of high catalytic activity with enhanced stability could be due to the strong interaction between the cobalt-oxide nanoparticle and the C2N framework, which contains a large portion of nitrogen. (Figure Presented).
Original languageEnglish (US)
Pages (from-to)4860-4864
Number of pages5
Issue number13
StatePublished - Jul 14 2015
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry
  • General Chemical Engineering
  • General Chemistry


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