Coherent carbon cryogel-ammonia borane nanocomposites for H2 storage. Academic Article uri icon

abstract

  • Coherent carbon cryogel-ammonia borane (C-AB) nanocomposites were synthesized, and improved H2 storage properties are reported. Porous carbon cryogels were impregnated with AB in tetrahydrofuran solution at 25 degrees C under argon; 30% of the carbon cryogel pore volume was filled to produce a 24 wt % C-AB nanocomposite. Nitrogen sorption isotherms, X-ray diffraction, differential scanning calorimetry, differential thermal/thermal gravimetric analyses, mass spectrometry, and 11B NMR were used to characterize the coherent C-AB nanocomposites. Findings include a merged two-step hydrogen release reaction with an appreciable reduction in the dehydrogenation temperature to <90 degrees C as well as the suppression of borazine release. The possible nanosize effects on the H2 storage properties are discussed.

published proceedings

  • J Phys Chem B

altmetric score

  • 3

author list (cited authors)

  • Feaver, A., Sepehri, S., Shamberger, P., Stowe, A., Autrey, T., & Cao, G

citation count

  • 160

complete list of authors

  • Feaver, Aaron||Sepehri, Saghar||Shamberger, Patrick||Stowe, Ashley||Autrey, Tom||Cao, Guozhong

publication date

  • June 2007