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access icon free Humidity-dependant compression properties of graphene oxide foams prepared by freeze-drying technique

© The Institution of Engineering and Technology
Received 28/10/2012, Accepted 19/12/2012, Revised 16/12/2012, Published

Microstructured graphene oxide (GO) foams were prepared by a freeze-drying technique. The morphology, structure and compression properties of the GO foams were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, atomic force microscopy and an electronic universal-testing machine. The unique pore structure made the GO foam easy to recover after compression. Furthermore, the compression properties of GO foam exhibited a humidity sensitivity, and the compressive strength was reduced by decreasing the relative humidity.

Inspec keywords: humidity; drying; X-ray diffraction; Fourier transform spectra; materials testing; foams; graphene; atomic force microscopy; compressive strength; porosity; freezing; infrared spectra

Other keywords: CO; humidity-dependent compression properties; compressive strength; microstructure; X-ray diffraction; freeze-drying; morphology; Fourier transform infrared spectroscopy; pore structure; electronic universal-testing; humidity sensitivity; graphene oxide foams; atomic force microscopy

Subjects: Deformation, plasticity and creep; Microstructure; Solid surface structure; Deformation and plasticity; Infrared and Raman spectra in disordered solids (inc. glasses and polymers); Structure of powders and porous materials; Aerosols and foams; Nondestructive materials testing methods

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