Journal
JOURNAL OF CO2 UTILIZATION
Volume 10, Issue -, Pages 30-39Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2015.03.002
Keywords
CNTs; Carbon dioxide; Methane; Adsorption; Chemical vapour deposition
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Carbon nanotubes are very interesting materials, with a wide range of applications. Their use as adsorbents represents a method of gas purification which can find various applications; an example is the industrial processes for the production of methane (CH4), where the purification of the same from the carbon dioxide (CO2) and/or nitrogen (N-2) has always been one of the main objectives. In this work, carbon nanotubes (CNTs) produced through a process of catalytic chemical vapor deposition (CCVD) are analyzed in view of this application. For this reason, the initial physical-chemical properties of the as-made, purified and oxidized CNTs, together with CH4, N-2 and CO2 adsorption/desorption tests at room temperature, have been considered to optimize the best material and the best operative condition for a potential application in adsorption and/or purification processes. (C) 2015 Elsevier Ltd. All rights reserved.
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