• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the American Chemical Society >Surface-Alkalinization-lnduced Enhancement of Photocatalytic H_2 Evolution over SrTiO_3-Based Photocatalysts
【24h】

Surface-Alkalinization-lnduced Enhancement of Photocatalytic H_2 Evolution over SrTiO_3-Based Photocatalysts

机译：表面碱化诱导的基于SrTiO_3的光催化剂对光催化H_2生成的增强作用

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 strategy of reaction-environment modulation was employed to change the surface property of a semiconductor photo catalyst to enhance its photocatalytic performance. Surface alkalinization induced by a high alkalinity of the solution environment significantly shifted the surface energy band of a SrTiO_3 photocatalyst to a more negative level, supplying a strong potential for H_2O reduction and consequently promoting the photocatalytic efficiency of H_2 evolution. This mechanism is also applicable for visible-light-sensitive La,Cr-codoped SrTiO_3 photocatalyst, which hence, could achieve a high apparent quantum efficiency of 25.6% for H_2 evolution in CH_3OH aqueous solution containing 5 M NaOH at an incident wavelength of 425 ±12 nm.
机译：采用反应环境调节策略改变半导体光催化剂的表面性质，以提高其光催化性能。溶液环境的高碱度引起的表面碱化将SrTiO_3光催化剂的表面能带显着转移到一个更负的水平，为H_2O还原提供了强大的潜力，因此提高了H_2析出的光催化效率。该机理也适用于可见光敏感的La，Cr共掺杂的SrTiO_3光催化剂，因此，在含有5 M NaOH的CH_3OH水溶液中，入射波长为425±2，H_2析出时，H_2的表观量子效率高达25.6％。 12纳米

著录项

  • 来源
    《Journal of the American Chemical Society》 |2012年第4期|p.1974-1977|共4页
  • 作者

    Shuxin Ouyang; Hua Tong; Naoto Umezawa; Junyu Cao; Peng Li; Yingpu Bi; Yuanjian Zhang; Jinhua Ye;

  • 作者单位

    Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki305-0047, Japan;

    International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-2-1Sengen, Tsukuba, Ibaraki 305-0047, Japan,TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District,Tianjin 300072, P. R China;

    Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki305-0047, Japan,TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District,Tianjin 300072, P. R China,PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan;

    Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki305-0047, Japan;

    Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki305-0047, Japan,International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-2-1Sengen, Tsukuba, Ibaraki 305-0047, Japan;

    International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-2-1Sengen, Tsukuba, Ibaraki 305-0047, Japan;

    International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-2-1Sengen, Tsukuba, Ibaraki 305-0047, Japan;

    Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki305-0047, Japan,International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-2-1Sengen, Tsukuba, Ibaraki 305-0047, Japan,TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District,Tianjin 300072, P. R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 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