کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1643073 | 1517248 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Template-free synthesis of hierarchical layer-stacking CeO2 nanostructure with enhanced catalytic oxidation activity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A template-free sol-gel chelating method was developed to synthesize a hierarchical layer-stacking CeO2 nanostructure. The morphologies of the as-prepared CeO2 were spindle-like and flower-like particles which were both assembled by many porous nano-flakes. The basic unit, nano-flake, was organized by numerous nanoparticles with a size of 10Â nm while the porous structure was formed. The as-prepared CeO2 exhibited a high surface area of 171.6Â m2Â gâ1, high pore volume of 0.31Â cmâ3Â gâ1 and narrow pore size of 4.0Â nm. Compared to the commercial CeO2, this novel structure showed much higher activity for CO oxidation which can be ascribed to its higher surface area, small crystal size and novel hierarchical porous structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 140, 1 February 2015, Pages 95-98
Journal: Materials Letters - Volume 140, 1 February 2015, Pages 95-98
نویسندگان
Wenxiang Tang, Wenhui Li, Xin Shan, Xiaofeng Wu, Yunfa Chen,