Facile synthesis of hybrid sodium tungsten oxide@carbon nanocables on reduced graphene oxide nanosheets

Facile synthesis of hybrid sodium tungsten oxide@carbon nanocables on reduced graphene oxide nanosheets
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在还原氧化石墨烯纳米片上轻松合成杂化氧化钨钠@碳纳米电缆

DOI:
10.1016/j.matlet.2015.08.114
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发表时间:
2015-12
期刊:
影响因子:
3
通讯作者:
Wu Yucheng
Wu Yucheng
中科院分区:
材料科学3区
文献类型:
--
作者:
Cao Gongbo;Zhang Yong;Yan Wenyuan;Wang Yan;Cui Jiewu;Liu Jiaqin;Zhou Qi;Chen Ying;Xie Ting;Wu Yucheng

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采用声化学方法,在不添加碳源的条件下,通过热处理成功地制备了一种新型的一维/二维纳米杂化材料,即固定在还原氧化石墨烯(rGO)纳米片上的氧化钨钠@碳纳米电缆。采用扫描电子显微镜、高分辨透射电子显微镜、X射线衍射和X射线光电子能谱等技术对杂化材料的形貌、结构和化学状态进行了表征。表征结果表明,纳米电缆结构由单晶Na0.1WO3纳米棒包裹薄石墨碳层组成。杂化物的光吸收峰与氧化钨钠/rGO的物理混合物相比发生了明显的红移,这表明纳米电缆和rGO纳米片之间存在杂化效应,有望成为各种纳米器件应用的杂化物。
Novel one-dimensional (1D)/two-dimensional (2D) hybrids of sodium tungsten oxide@carbon nanocables anchored on reduced graphene oxide (rGO) nanosheets were successfully synthesized by a facile sonochemical method followed by annealing without extra carbon sources. Morphology, structure and chemical states of the hybrids were characterized by scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy techniques. The characterization results indicate that the nanocable structure is composed of single crystalline Na0.1WO3nanorod wrapped with thin graphitic carbon layer. Optical absorption peak of the hybrids demonstrates an evident red shift compared with physical mixture of sodium tungsten oxide/rGO, which indicates hybridization effect between the nanocables and the rGO nanosheets and promises potential of the hybrids for various nanodevice applications.
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