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以锯齿状碳纳米管为模板原位合成微/纳米球状氧化钨
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江西理工大学材料科学与工程学院

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基金项目:

国家自然科学基金项目(地区项目和青年项目),江西省科技厅项目


In situ synthesis of nano-WO3 particles attached to sphere-like micro-WO3 using jagged CNTs as template
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School of Materials Science and Engineering,Jiangxi University of Science and Technology

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the National Natural Science Foundation of China 51202095 and 51264010),the Department of Science & Technology of Jiangxi Province(GJJ160604)

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    摘要:

    以锯齿状CNTs管束作为模板担载H2WO4前驱体。在液相沉积过程中H2WO4被锯齿状CNTs包裹,所得H2WO4/CNTs团簇的平均尺寸为500Snm,由直径10-20 nm的H2WO4组成,比表面积和孔容分别为85.24 m2 g-1和0.2933 m3g-1。将H2WO4/CNTs置于氧气气氛中进行热处理,除去CNTs后,得到了由纳米颗粒组成的WO3微米球,比表面积和孔容分别为18.7 m2 g-1和0.2055 m3g-1。结果表明,锯齿状CNTs对有效调节分层结构WO3发挥重要作用,对制备微纳米结构材料具有广阔的应用前景。

    Abstract:

    The CNT bundles can be jagged and used as template to load the precursor H2WO4. The H2WO4 seeds can be enclosed by the jagged CNT template during liquid precipitation process. The H2WO4clusters with avarage size of 500Snm are consisted of nanosized H2WO4with 10-20 nm diameter, which display high specific surface area of 85.24 m2 g-1 and total pore volume of 0.2933 m3 g-1. After thermal treatment of H2WO4/CNTs at oxygen atmosphere, nano-WO3 particles attached to sphere-like micro-WO3 can be easily obtained by removing the CNT template. Its specific surface area and total pore volume is 18.7 m2 g-1 and 0.2055 m3 g-1respectively. These results indicate that the jagged CNTs can play an important role for effective mediation of WO3 with hierarchical size, and exhibit excellent prospects for preparation of micro-nanostructured materials.

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尹艳红,童珍,幸康虔,吴子平,黎业生,刘先斌,梁同祥,廖春发,蒋隆科,邵健锋.以锯齿状碳纳米管为模板原位合成微/纳米球状氧化钨[J].稀有金属材料与工程,2019,48(1):9~15.[Yan Hong Yin, Zhen Tong, Kang Qian Xing, Zi Ping Wu, Ye Sheng Li, Xian Bin Liu, Tong Xiang Liang, Chun Fa Liao, Long Ke Jiang, Jian Feng Shao. In situ synthesis of nano-WO3 particles attached to sphere-like micro-WO3 using jagged CNTs as template[J]. Rare Metal Materials and Engineering,2019,48(1):9~15.]
DOI:10.12442/j. issn.1002-185X.20170735

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  • 收稿日期:2017-08-17
  • 最后修改日期:2017-09-27
  • 录用日期:2017-11-08
  • 在线发布日期: 2019-02-18
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