Gas-phase dehydrogenation of alkylbenzenes on Rh/AlPO4 catalysts,

スポンサーリンク

概要

• 論文の詳細を見る

• The nonoxidative dehydrogenation of alkylbenzenes (ethylbenzene, propylbenzene, and isopropylbenzene) has been carried out at 693–853 K on rhodium catalysts at 1 wt% supported on two different types of AlPO<SUB>4</SUB>. In similar experimental conditions, the specific catalytic activity of the Rh/AlPO<SUB>4</SUB> catalysts is higher than that obtained previously for Ni/AlPO<SUB>4</SUB> (20 wt%) catalysts. Besides, a linear free energy relationship (LFER) was also obtained, manifesting itself through a "compensation effect" between the Δ<I>H</I><SUP>≠</SUP> and Δ<I>S</I><SUP>≠</SUP> activation parameters obtained from the Eyring equation (and between ln <I>A</I> and <I>E</I><SUB>a</SUB>, from the Arrhenius equation). Furthermore, no extensive metal-support interaction effect was obtained as in the case of Ni/AlPO<SUB>4</SUB> catalysts in spite of exhibiting the same concerted mechanism previously described for the nonoxidative dehydrogenation of alkylbenzenes on supported nickel catalysts.

• 公益社団法人 日本化学会の論文

著者

• García Angel

  Department of Organic Chemistry, Córdoba University

• Luna Diego

  Department of Organic Chemistry, Córdoba University

• M. Bautista

  Department of Organic Chemistry, Córdoba University

• M. Campelo

  Department of Organic Chemistry, Córdoba University

• M. Marinas

  Department of Organic Chemistry, Córdoba University

関連論文

• Gas-phase dehydrogenation of alkylbenzenes on Rh/AlPO4 catalysts,

スポンサーリンク