2-4-2 メタン分解反応に対するシリカ担持Ni触媒の調製法の効果(2-4 天然ガス科学,Session2 天然ガス・メタンハイドレート等,研究発表)

概要

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Nickel-catalyzed decomposition of methane into carbon and hydrogen was examined using a thermogravimetric apparatus. The Ni catalysts prepared by an ion-exchange method using a spherical silica support that was prepared by Stober method gave hydrogen and carbon at 550℃. TEM observation revealed that multi-walled carbon nanotubes with an average diameter of 〜14 nm were formed on this catalyst. The effect of preparation method upon silica-support Ni catalyst for the state of Ni species and the catalytic activity was studied. The catalyst prepared under the optimized conditions showed a high carbon yield (2.31 g/g-cat).
2011-08-09