Journal
CHEMISTRY OF MATERIALS
Volume 27, Issue 13, Pages 4860-4864Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.5b01734
Keywords
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Funding
- Creative Research Initiative (CRI) program - National Research Foundation (NRF) of Korea
- Mid-Career Researcher (MCR) program - National Research Foundation (NRF) of Korea
- BK21 Plus program - National Research Foundation (NRF) of Korea
- Basic Research Laboratory (BRL) program - National Research Foundation (NRF) of Korea
- US Air Force Office of Scientific Research through the Asian Office of Aerospace RD (AFOSR-AOARD)
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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 (H-2) 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.
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