Dry reforming of methane over catalysts derived from nickel-containing Mg–Al layered double hydroxides

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• 作者：Tsyganok ; Andrey I. ; Tsunoda ; Tatsuo ; Hamakawa ; Satoshi ; Suzuki ; Kunio ; Takehira ; Katsuomi ; et. al.
• 关键词：Methane ; Dry reforming ; Synthesis gas ; Nickel catalysts ; Layered double hydroxides ; Intercalation
• 刊名：Journal of Catalysis
• 出版年：2003
• 出版时间：January 25, 2003
• 年：2003
• 卷：213
• 期：2
• 页码：191-203
• 全文大小：1.44 M

文摘

We present the synthesis and structural characterization of new nickel-containing Mg–Al layered double hydroxides (LDH), which adopt a structure in which nickel, chelated with ethylenediaminetetraacetate to a divalent anion [Ni(EDTA)]²⁻, is nested between brucite-like layers of LDH. The corresponding LDH-derived Ni–Mg–Al mixed oxides demonstrated high and stable catalytic function toward the reaction of methane reforming with carbon dioxide into synthesis gas at 800 °C. It is shown that the state of the supported nickel and the coke deposition process were significantly influenced by the method of catalyst preparation.