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Issue 88, 2016
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Catalytic methane combustion over iron/nitrogen-doped silicon carbide

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Abstract

We synthesized iron (Fe) and nitrogen (N)-modified silicon carbide (Fe/N–SiC) as a novel methane (CH4) combustion catalyst by annealing Fe-deposited SiC under an ammonia atmosphere at 900 °C for 3 h. The rate of CH4 combustion over Fe/N–SiC was 3 times higher than that over Fe–SiC (without N atoms) at 500 °C. Extended X-ray absorption fine structure and X-ray photoelectron spectroscopy analyses of Fe/N–SiC revealed that Fe was atomically distributed and coordinated to N atoms. N-Ligated Fe centers in the catalyst might facilitate the activation of molecular oxygen, and the generated active oxygen species likely react with CH4, resulting in the enhancement of CH4 combustion activity over Fe/N–SiC.

Graphical abstract: Catalytic methane combustion over iron/nitrogen-doped silicon carbide

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Publication details

The article was received on 23 Jun 2016, accepted on 03 Sep 2016 and first published on 05 Sep 2016


Article type: Paper
DOI: 10.1039/C6RA16318A
Citation: RSC Adv., 2016,6, 85559-85563
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    Catalytic methane combustion over iron/nitrogen-doped silicon carbide

    H. Koshikawa, S. Nakanishi, K. Hashimoto and K. Kamiya, RSC Adv., 2016, 6, 85559
    DOI: 10.1039/C6RA16318A

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