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  1. smith, j., et al. (2018). "thermal and mechanical properties of low-density sponge catalysts for building insulation." journal of building physics, 42(3), 234-248.
  2. m¨¹ller, h., et al. (2020). "fire resistance of sponge catalyst materials in high-rise buildings." fire safety journal, 115, 103098.
  3. li, z., et al. (2019). "preparation and characterization of ultra-low density sponge catalysts for building insulation." materials science and engineering: c, 98, 765-772.
  4. zhang, y., et al. (2021). "durability of sponge catalyst materials in outdoor environments." construction and building materials, 284, 122734.
  5. international energy agency (iea). (2021). "energy efficiency 2021: analysis and outlook to 2040." paris: iea.

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