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Oxygen-rich microporous carbons with exceptional hydrogen storage capacity
Open accessAbstract
Porous carbons have been extensively investigated for hydrogen storage but, to date, appear to have an upper limit to their storage capacity. Here, in an effort to circumvent this upper limit, we explore the potential of oxygen-rich activated carbons. We describe cellulose acetate-derived carbons that combine high surface area (3800 m 2 g−1) and pore volume (1.8 cm 3 g−1) that arise almost entirely (>90%) from micropores, with an oxygen-rich nature. The carbons exhibit enhanced gravimetric hydrogen uptake (8.1 wt% total and 7.0 wt% excess) at −196 °C and 20 bar, rising to a total uptake of 8.9 wt% at 30 bar, and exceptional volumetric uptake of 44 g l−1 at 20 bar, and 48 g l−1 at 30 bar. At room temperature they store up to 0.8 wt% (excess) and 1.2 wt% (total) hydrogen at only 30 bar, and their isosteric heat of hydrogen adsorption is above 10 kJ mol−1.
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Evaluating topologically diverse metal–organic frameworks for cryo-adsorbed hydrogen storage
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Self-citationBalahmar, N., Mitchell, A. C., & Mokaya, R. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201500867 · Cited by 177
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Large-scale storage of hydrogen
Andersson, J., & Grönkvist, S. (2019) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2019.03.063 · Cited by 1,356
Large-vscale hydrogen production and storage technologies: Current status and future directions
Olabi, A. G., bahri, A. S., Abdelghafar, A. A., Baroutaji, A., Sayed, E. T., Alami, A. H., Rezk, H., & Abdelkareem, M. A. (2021) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2020.10.110 · Cited by 492
Hydrogen storage in carbon materials—A review
Mohan, M., Sharma, V. K., Kumar, E. A., & Gayathri, V. (2019) · Energy Storage · doi:10.1002/est2.35 · Cited by 482
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Recent Progress Using Solid-State Materials for Hydrogen Storage: A Short Review
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Metadata
- Authors
- Blankenship, L. S., Balahmar, N., & Mokaya, R.
- Venue
- Nature Communications
- Published
- 2017-11-16
- Volume
- 8
- Issue
- 1
- Pages
- 1545-1545
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2767441745
- Cited by
- 311
- References
- 5
- FWCI
- 7.79
- Type
- journal article
- Language
- en
- Open access
- gold
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