Hydrogen storage on pyrolyzed chicken feather fibers
✍ Scribed by Erman Senoz; Richard P. Wool
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 198 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0360-3199
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✦ Synopsis
Pyrolyzed chicken feather fibers (PCFF) that were prepared by two-step process (215 C/ 15 h þ 400e450 C/1 h) demonstrated a significant H 2 adsorption uptake due to their microporous nature. Considering their large availability, cost and H 2 storage capability, PCFF can be a significant, environmentally friendly and bio-renewable candidate to address the H 2 storage problem. A wide range of microporosities was obtained when the second step pyrolysis temperature was maintained between 400 and 450 C for 0.5e2 h. The optimal H 2 storage was obtained using 1 h pyrolysis in this temperature range. The maximum excess H 2 storage capacity was 1.5 wt% at 77 K and at pressures below 2 MPa.
The notable H 2 adsorption of PCFF below 1 MPa can be justified by the abundance of microporosity, and the nanopores available for H 2 penetration. The estimated adsorption energy for PCFFs, 5e6 kJ/mol was in the range of typical physisorption materials indicating the easy recovery of H 2 .