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Hofmann, U. & Frenzel, A. Quellung’von Graphit und die Bildung von Graphits äure. Ber. Dtsch. Chem. Ges. 63(5), 1248–1262 (1930). It's been in use for more than 30 years and has become increasingly popular, despite criticism, because it offers insulation and may also stop air leakage. But keep in mind that your roof needs to be in a generally good condition and not leaking. Otherwise, spray foam insulation could cause new problems. Suk, J. W., Piner, R. D., An, J. & Ruoff, R. S. Mechanical properties of monolayer graphene oxide. ACS Nano 4(11), 6557–6564 (2010). Some types of foam insulation are waterproof but also breathable, making it suitable for homes in flood-prone areas.
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Saxena, S. et al. Investigation of structural and electronic properties of graphene oxide. Appl. Phys. Lett. 99, 1–4 (2011). Abdelkader, A. M., Valles, C., Cooper, A. J., Kinloch, I. A. & Dryfe, R. A. W. Alkali Reduction of Graphene Oxide in Molten Halide Salts: Production of Corrugated Graphene Derivatives for High-Performance Supercapacitors. ACS Nano 8, 11225–11233 (2014).Gao, X., Li, J., Xie, Y., Guan, D. & Yuan, C. A miltilayered silicon-reduced graphene oxide electrode for high performance lithium-ion batteries. ACS Appl. Mater. Interfaces 7(15), 7855–7862 (2015). Spray foam is also worth considering if you have hard-to-treat cavity walls or solid walls that aren’t suitable for external insulation due to planning restrictions. Spray foam insulation is more expensive than other types of insulation, such as mineral or glass-wool, polystyrene slabs or expanded polystyrene (EPS).
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Sitko, R. et al. Adsorption of divalent metal ions from aqueous solutions using graphene oxide. Dalton Trans. 42, 5682–5689 (2013). Chang, W. C. et al. Solvent-free mechanochemical reduction of graphene oxide. Carbon 77, 501–507 (2014). Kinoshita, H., Nishina, Y., Alias, A. A. & Fujii, M. Tribological properties of monolayer graphene oxide sheets as water based lubricant additives. Carbon 66, 720–723 (2014). According to the Royal Institution of Chartered Surveyors, if a surveyor encounters spray foam insulation during their inspection, they may reduce the value of the property or request an independent specialist report. In some cases, spray foam insulation may even render a property un-mortgageable in the eyes of a lender. Graphene oxide (GO), a monolayer sheet of graphite oxide, is by no means a less wonderful material than graphene 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33. It not only serves as a precursor for making reduced graphene oxide (rGO) but also itself has remarkable physical and chemical properties which makes it a sought after material for applications in areas which include electronics, biomedicine, energy and environment 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25. GO has promising biological applications demonstrated at laboratory scale which include, drug delivery 1, 2, antibacterial coatings 3, 4, 5, photo-thermal cancer therapy 6, 7 and selective differentiation of mesenchymal 8 and neural 9, 10 stem cells. Key environmental applications of GO include contaminant adsorption 11, 12, water decontamination 13, 14, 15, solar desalination 16 and environmental sensing 17, 18. GO also finds niche applications in areas including tribology 19, 20 and energy storage 21, 22, 28. GO has been shown to be a highly flexible nanomaterial with a high stiffness 23. Furthermore, the recent demonstration of high quality graphene prepared using microwave reduction of GO 24 has the potential to open the flood-gates for real world electronic applications of GO. However, realizing all this in practice hinges on developing a safe, economic and scalable method for making GO.Weinschenk, E. Über den Graphitkohlenstoff und die gegenseitigen Beziehungen zwischen Graphit, Graphitit and Graphitoxid. Z. Kristallogr 28(3), 291–304 (1897).
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Marcano, D. C. Correction to improved synthesis of graphene oxide. ACS Nano 12(2), 2078–2078 (2018).