کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
60485 47534 2016 11 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Single-atom and small-cluster Pt induced by Sn (IV) sites confined in an LDH lattice for catalytic reforming
ترجمه فارسی عنوان
پلاتین تک اتم و خوشه کوچک القا شده توسط سایت های قلع (IV) محدود در یک شبکه LDH برای اصلاح کاتالیزوری
کلمات کلیدی
پراکندگی پلاتین؛ تک اتم؛ خوشه های کوچک؛ ترکیبات مانند Hydrotalcite ؛ کاتالیزوری اصلاح
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• A facile and practical way to achieve the high dispersion of Pt is presented.
• Sn (IV) sites are highly dispersed and confined in the brucite-like lattices of LDHs.
• The Pt sites induced by Sn (IV) mainly exist in single atoms and small clusters.
• The catalysts inhibit hydrogenolysis and promote cyclization in n-heptane reforming.

Conventional supported Pt for industrial catalytic reforming exhibits high conversion, but suffers low selectivity due to the hydrogenolysis reaction. The development of highly dispersed Pt offers the opportunity to settle this problem. Here, a supported Pt, with Pt dispersed in single atoms plus small clusters with fewer than 10 atoms (91%) on Sn-containing mixed metal oxides, has been prepared by the induction of a Sn component confined in the lattices of brucite-like layers of layered double hydroxides. Pt in single-atom and small-cluster dispersion effectively inhibits hydrogenolysis and significantly improves the selectivity to cyclization products in the n-heptane reforming reaction.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 341, September 2016, Pages 44–54
نویسندگان
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