کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
64655 48364 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of surface synergistic effect on the performance of Ni-based hydrotalcite catalyst for highly efficient hydrogenation of furfural
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Role of surface synergistic effect on the performance of Ni-based hydrotalcite catalyst for highly efficient hydrogenation of furfural
چکیده انگلیسی


• The selective hydrogenation of furfural has been investigated over hydrotalcite derived Ni containing catalyst.
• At optimized reaction conditions, furfural conversion of 98% with 95% of furfuryl alcohol selectivity was achieved.
• The high efficiency of the catalyst is attributed to the surface synergism between the metallic Ni sites and the strong Mg (Al) O basic sites.
• The spent catalyst analysis substantiated that no significant difference in the catalyst phase was observed even after 48 h of reaction.

The selective vapor phase hydrogenation of furfural at ambient pressure has been investigated using a facile and robust hydrotalcite derived Ni containing mixed oxide catalyst. The systematic characterization results conferred that the difficulty in the reduction of Ni species due to the strong interaction between Ni and support, which facilitated from the homogeneous distribution of hydrotalcite structure. It was also found that the structure and catalytic performance of the catalysts were greatly influenced by Ni loading. Through fine-tuned surface elemental sites and reaction conditions, furfural conversion of 98% with 95% of furfuryl alcohol selectivity was achieved over a MAN-2 catalyst containing two molar ratio of Ni. The results have demonstrated that the incorporation of Mg significantly enhances the Ni-support interaction, Ni dispersion and catalytic performance. The high efficiency of the Ni-based hydrotalcite derived catalyst was mainly attributed to the surface synergistic interaction between the catalytically active metallic Ni sites and the strong basic sites, which furnished an eco-benign and sustainable catalyst for the selective hydrogenation of furfural. Furthermore, the spent catalyst analysis substantiated that no significant difference in the catalyst phase was observed even after 48 h of reaction stream.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 417, June 2016, Pages 153–162
نویسندگان
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