High-throughput detection of hydrogen sorption on carbon-based materials using Raman and infrared spectroscopies

This paper addresses the issue of improved screening time for hydrogen sorption sensitivity. Optical spectroscopies such as Raman scattering and infrared transmission are known to be very useful for detecting adsorbed hydrogen. Small high-pressure cells - capable of holding multiple samples at once, being pressurized up to either 4 bar (Raman) or 95 bar (FTIR), and being temperature controlled between 20 - 300 K (Raman) or 20 - 1100 K (FTIR) - are used to probe the temperature/pressure relationships for optical signatures of molecular hydrogen, H2, and other hydrogenated functional groups. Results of such optical screening for samples based on single-walled carbon nanotubes (SWCNTs), un-substituted and boron-substituted high surface area carbons, or metal-organic frameworks (MOFs) will be presented in the context of a combinatorial approach to finding starting structures or frameworks for future solid-state hydrogen storage material.

Rocha, J., Zhao, D., Bult, J. B., Engtrakul, C., O'Neill, K. J., Barker, J. G., ... Blackburn, J. L.

Rocha, John-David R||Zhao, Daniel||Bult, Justin B||Engtrakul, Chaiwat||O'Neill, Kevin J||Barker, Jacob G||Simpson, Lin J||Zhou, Hong-Cai||Heben, Michael J||Blackburn, Jeffrey L

High-throughput detection of hydrogen sorption on carbon-based materials using Raman and infrared spectroscopies Conference Paper