کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1413240 1508846 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphitized hollow carbon spheres and yolk-structured carbon spheres fabricated by metal-catalyst-free chemical vapor deposition
ترجمه فارسی عنوان
حوزه های کربن توخالی گرافیتی و حوزه های کربن زرده ساختار یافته ساخته شده توسط رسوب بخار شیمیایی بدون کاتالیزور فلزی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی

Hard-sphere-templating method has been widely used to synthesize hollow carbon spheres (HCSs), in which the spheres were firstly coated with a carbon precursor, followed by carbonization and core removal. The obtained HCSs are generally amorphous or weakly graphitized (with the help of graphitization catalysts). In this work, we report on the fabrication of graphitized HCSs and yolk–shell Au@HCS nanostructures using a modified templating method, in which smooth, uniform graphene layers were grown on SiO2 spheres or Au@SiO2 nanoparticles via metal-catalyst-free chemical vapor deposition (CVD) of methane. Our work not only provides a new method to fabricate high-quality, graphitized HCSs but also demonstrates a reliable approach to grow quality graphene on oxide surfaces using CVD without the presence of metal catalysts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 101, May 2016, Pages 57–61
نویسندگان
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