کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8012367 | 1517158 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of novel 2D ceria nanoflakes with enhanced catalytic activity induced by cobalt doping
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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
Two-dimensional (2D) ceria nanoflakes with a thickness of â¼2â¯nm were successfully synthesized by cobalt doping via a one-step hydrothermal method. SEM, TEM, AFM, XRD and FT-IR were employed to reveal the morphologies and structures of the products. The results showed that the introduction of Co dopants was critical for the formation of unique 2D nanoflakes structure in this system and it is believed that nanoflakes were formed through a Co induced 2D self-assemble of small ceria nanocrystals based on the oriented attachment. In addition, the nanoflakes Co-CeO2 showed high catalytic activity for mercury oxidation due to the abundant oxygen defects, which was confirmed by the oxygen temperature-programmed desorption (O2-TPD) and Photoluminescence (PL) spectra. This work has provided new strategy of design and preparation of ceria nanomaterials with high catalytic activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 230, 1 November 2018, Pages 80-83
Journal: Materials Letters - Volume 230, 1 November 2018, Pages 80-83
نویسندگان
Chaofang Li, Xingyao Li, Libiao Liu, Haiying Wang, Weichun Yang,