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Environmentally Friendly La0.6Sr0.4Ga0.3Fe0.7O3 (LSGF)-Functionalized Fly-Ash Geopolymers for Pollutants Abatement in Industrial Processes

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Abstract

A ready-to use, highly sustainable solution for large scale exhausts catalytic abatement was developed: the active bricks. An environmentally-friendly composite was synthesized by depositing La0.6Sr0.4Ga0.3Fe0.7O3, by combustion synthesis, on a fly ash-based geopolymer improved to bear the high temperatures (> 900 °C) required for synthesis. The geopolymer was obtained using by-products and was synthesized at RT: its production is sustainable and cost efficient. Prepared composites have been tested for methane oxidation and show good, durable activity above 400 °C. Thermal stability was also proved. Composites are a good solution for oxidation of fuel residues in industrial processes.

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Acknowledgements

A. Bedon and A. Glisenti have received funding from the European Union’s H2020 Programme under Grant Agreement 686086 PARTIAL-PGMs.

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Correspondence to A. Glisenti.

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Bedon, A., Carabba, L., Bignozzi, M.C. et al. Environmentally Friendly La0.6Sr0.4Ga0.3Fe0.7O3 (LSGF)-Functionalized Fly-Ash Geopolymers for Pollutants Abatement in Industrial Processes. Catal Lett (2020). https://doi.org/10.1007/s10562-020-03132-z

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Keywords

  • Perovskites
  • Sustainable catalysts synthesis
  • Pollutants degradation
  • Fly-ash geopolymer
  • Smart composite surfaces