A Cyclic Catalyst Pretreatment in CO2 for High Yield Production of Carbon Nanofibers with Narrow Diameter Distribution

作者:Corthals Steven; Van Noyen Jasper; Liang Duoduo; Ke Xiaoxing; Van Tendeloo Gustaaf; Jacobs Pierre; Sels Bert*
来源:Catalysis Letters, 2011, 141(11): 1621-1624.
DOI:10.1007/s10562-011-0690-3

摘要

This paper presents a cyclic catalyst pretreatment process to improve the CNF yield with narrow size distribution by sequentially feeding the CVD reactor with CH4/CO2 mixtures (carbon deposition) and CO2 (carbon removal) prior to the actual growth process. A mechanism based on a break-up of large Ni particles tentatively explains the beneficial effect of the cyclic carbon deposition/removal CVD procedure.

  • 出版日期2011-11

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