• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Solar Energy >Excellent dispersion and charge separation of SrTiO_3-TiO_2 nanotube derived from a two-step hydrothermal process for facilitating hydrogen evolution under sunlight irradiation
【24h】

Excellent dispersion and charge separation of SrTiO_3-TiO_2 nanotube derived from a two-step hydrothermal process for facilitating hydrogen evolution under sunlight irradiation

机译：两步水热法衍生的SrTiO_3-TiO_2纳米管具有出色的分散和电荷分离特性，有助于在阳光照射下析氢

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

A new, facile, and effective two-step hydrothermal process was developed for the formation of SrTiO3-TiO2 nanotube with excellent charge separation, electronic transport, and sunlight response successfully. There are evidences that adjusting the hydrothermal temperature of H-titanate was an effective method of preparing versatile SrTiO3-TiO2 nanotubes. The characterization analysis results indicated that because of the increased conversion of H2Ti6O13 nanotube at 150 degrees C, the nanotube could provide abundant sites for Sr ions adsorption, resulting in (1) the increased probability of a reaction occurring between the Sr ions and the H2Ti6O13 nano tubes, (2) an improvement in the perovskite SrTiO3 and anatase TiO2 conversion, and (3) the uniform dispersion of SrTiO3 square particles. Due to the improved contact between the SrTiO3 particles and the anatase TiO2 nanotube, the electronic transport, charge separation, and solar light-response were increased. Based on the excellent charge separation and solar light-response of SrTiO3-TiO2 nanotube, the H-2 evolution activity of N-TiO2/SrTiO3-TiO2 nanotube could be remarkably enhanced by modifying the surface with small amount (0.2 wt %) of Pt, and the hydrogen evolution rate of Pt/N-TiO2/SrTiO3-TiO2 nanotube reached 3873 mu mol/h/g under sunlight irradiation.
机译：开发了一种新的，简便而有效的两步水热工艺，以成功地形成具有优异电荷分离，电子传输和阳光响应的SrTiO3-TiO2纳米管。有证据表明，调节钛酸氢盐的水热温度是制备多功能SrTiO3-TiO2纳米管的有效方法。表征分析结果表明，由于H2Ti6O13纳米管在150℃下的转化率增加，因此可以为Sr离子的吸附提供丰富的位点，导致（1）Sr离子与H2Ti6O13纳米管之间发生反应的可能性增加。管，（2）钙钛矿型SrTiO3和锐钛矿型TiO2转化率的提高，以及（3）SrTiO3方形颗粒的均匀分散。由于改善了SrTiO3颗粒与锐钛矿型TiO2纳米管之间的接触，增加了电子传输，电荷分离和太阳光响应。基于SrTiO3-TiO2纳米管优异的电荷分离和太阳光响应特性，通过少量（0.2 wt％）的Pt修饰表面，可以显着提高N-TiO2 / SrTiO3-TiO2纳米管的H-2析出活性。在阳光照射下，Pt / N-TiO2 / SrTiO3-TiO2纳米管的析氢速率达到了3873μmol/ h / g。

著录项

相似文献

  • 外文文献
  • 专利
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