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CO2 reforming of methane to produce syngas using anti-sintering carbon-resistant Ni/CeO2 fibers produced by solution blow spinning

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Abstract

Climate change, greenhouse gas emissions and energy demand are actually calling for new methods to manage better carbon-containing compounds. In particular, the valorization of CH4 and CO2 by dry reforming of methane may both abate pollution and produce a syngas with a H2/CO ratio close to 1, which is advantageous for industrial applications, and is a cheaper and cleaner alternative to fossil fuels. Yet this process has limitations such as secondary reactions and catalyst deactivation by carbon deposition. Ni-based catalysts with enhanced activity and high resistance against carbon deposition are therefore actually under investigation. Here we present the first use of Ni–ceria-based fibers synthesized by solution blow spinning, as catalyst to produce syngas used by the dry reforming reaction. Catalyst stability was tested at 700 °C. Our results show no significant deactivation after 30 h on stream. Thermal analysis and X-ray diffraction of the spent catalyst reveal that the deposited carbon species did not alter the stability of the catalyst. Overall, findings show that solution blow spinning is a promising technique to produce low-cost nickel fibers and anti-sintering, carbon-resistant, and stable fibrous materials for CO2 reforming of methane.

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Acknowledgements

The authors acknowledge Brazilian foundations CNPq and CAPES (Finance Code 001) for their financial support. We wish to thank Prof. Rubens Maribondo do Nascimento (UFRN) and Prof. Sandro Marden Torres (UFPB) for XPS, FESEM and XRD analyses, respectively.

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Correspondence to Cédric Gennequin.

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Herminio, T., Cesário, M.R., Silva, V.D. et al. CO2 reforming of methane to produce syngas using anti-sintering carbon-resistant Ni/CeO2 fibers produced by solution blow spinning. Environ Chem Lett 18, 895–903 (2020). https://doi.org/10.1007/s10311-020-00968-0

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  • DOI: https://doi.org/10.1007/s10311-020-00968-0

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