Characterization of active species in alumina and silica supported CuCl<sub>2</sub> catalysts by EPR期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Characterization of active species in alumina and silica supported CuCl₂ catalysts by EPR

Authors:	E. M. Fortini C. L. Garcia D. E. Resasco

Affiliation:	(1) INTEMA (Institute of Materials Science and Technology) Universidad Nacional de Mar del Plata-CONICET, Juan B. Justo 4302, (7600) Mar del Plata, Argentina

Abstract:	In a recent paper [1] we proposed that a Cu²⁺ species interacting with the support was responsible for maintaining the catalytic activity of CuCl₂ catalysts used in the methane oxyhydrochlorination reaction (CH₄+HCl+O₂ chloromethanes). This species was detected on Al₂O₃ and TiO₂ supports but it did not appear on SiO₂. In this paper we report EPR results which provide a direct characterization of this species and correlate well with the observed trends in activity. [1] , Cu²⁺, , CuCl₂, (CH₄+HCl+O₂ ). Al₂O₃ TiO₂, SiO₂. , .

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