Methane storage in multi-walled carbon nanotubes at the quantity of 80 g
- Department of Chemical Engineering, Tsinghua University, Beijing 100084 (China)
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China)
Methane storage in multi-walled carbon nanotubes (MWNTs) is studied at ambient temperature and pressures of 0-10.5 MPa, with a quantity of 80 g samples that were synthesized by nano-agglomerate fluidized-bed reactors (NAFBR). The volume of methane released by MWNTs was measured by volumetric method. We study the effects of purification and the pretreatments on methane storage. Results show that mixed acid treatment, alkali treatment, and mechanical shearing can obviously enhance gas uptake while high-temperature treatment can only slightly reduce it. For properly pretreated samples, an optimal 11.7% of mass storage capacity was achieved at room temperature and the pressure of 10.5 MPa, indicating that CNTs is a potential material for methane uptake.
- OSTI ID:
- 21144017
- Journal Information:
- Materials Research Bulletin, Vol. 43, Issue 6; Other Information: DOI: 10.1016/j.materresbull.2007.06.046; PII: S0025-5408(07)00284-X; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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