...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Design of nano-needle titania and surface roughness of its film by processing sol-gel reaction and supercritical drying
【24h】

Design of nano-needle titania and surface roughness of its film by processing sol-gel reaction and supercritical drying

机译：nano-needle二氧化钛和表面的设计粗糙度的电影处理溶胶-凝胶法反应和超临界干燥

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nano-needle titania was fabricated from sol-gel reaction using titanium butoxide (TBO) as titania precursor and acetic acid (HAc). The wet gel after the sol-gel reaction was dried in supercritical carbon dioxide at 313K and 10.4 MPa for the production of titania powder. The minor-axis of the nano-needles were measured by a scanning electron microscope and evaluated with respect to the effect of the initial molar ratios of HAc to TBO and reaction time in the sol-gel reaction process. A higher molar ratio of HAc in the sol-gel reaction results in a smaller minor axis of the nano-needle. The minor-axis of the titania nano needle increases with increasing sol-gel reaction time. From these results, the minor-axis size of titania nano-needle could be controlled by the molar ratios of HAc to TBO and reaction time in the sol-gel reaction. The nano-needle titania was also applied to the fabrication of a thin film by a casting and solvent evaporation method. The surface roughness of the titania thin film from the nano-needle with various minor-axis was evaluated and compared with that from the nano-sphere titania. A smaller minor-axis of the nano-needle titania results in a larger roughness of the surface on the thin film. It is found that the roughness of the nano-needle film was larger than that using the nano-sphere. (C) 2016 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：Nano-needle二氧化钛溶胶-凝胶法是捏造的使用钛醚反应(31)作为二氧化钛前体和醋酸(HAc)。溶胶-凝胶反应后晒干超临界二氧化碳在313 k和10.4 MPa用于生产二氧化钛粉末。短轴nano-needles被衡量扫描电子显微镜和评估对初始摩尔比的影响HAc的大修周期在溶胶-凝胶法和反应时间反应过程。溶胶-凝胶反应的结果在一个更小的小nano-needle的轴。二氧化钛纳米针增加而增加溶胶-凝胶反应时间。短轴尺寸的二氧化钛nano-needleHAc的摩尔比率数据和控制的溶胶-凝胶反应的反应时间。nano-needle二氧化钛也被应用到铸造和制造的薄膜溶剂蒸发法。从nano-needle的二氧化钛薄膜各种评估和短轴从价格相比nano-sphere二氧化钛。一个较小的短轴nano-needle二氧化钛导致更大的表面粗糙度薄膜。nano-needle电影比,使用更大nano-sphere。工程师。保留。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号