کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1648992 1007570 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of ordered mesoporous CuO/CeO2 composite via co-nanocasting replication method and its improved reactivity towards hydrogen
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Synthesis of ordered mesoporous CuO/CeO2 composite via co-nanocasting replication method and its improved reactivity towards hydrogen
چکیده انگلیسی

Ordered mesoporous CuO/CeO2 composites with cubic Ia3d or 2-D hexagonal p6mm structure have been synthesized by a co-nanocasting-replication method using mesoporous silica KIT-6 or SBA-15 as hard template. XRD, TEM, N2-adsorption and H2-TPR techniques were used for the structural analysis and catalytic activity characterization. The results indicated that the high surface area mesoporous CuO/CeO2 composites with different amounts of CuO addition were well-crystallized and exhibited much improved reactivity towards hydrogen than pure mesoporous CeO2, and the CuO/CeO2 composite with 20 wt.% CuO addition possessed the highest reactivity towards hydrogen. The enhanced H2-TPR property could be attributed to the synergetic catalytic effects between copper oxide and cerium oxide.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 64, Issue 12, 30 June 2010, Pages 1379–1382
نویسندگان
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