...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Effect of conduction band potential on cocatalyst-free plasmonic H-2 evolution over Au loaded on Sr2+-doped CeO2
【24h】

Effect of conduction band potential on cocatalyst-free plasmonic H-2 evolution over Au loaded on Sr2+-doped CeO2

机译：导带电位的影响在非盟cocatalyst-free电浆氢进化装上Sr2 +再版CeO2

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

There is little information on the effect of the conduction band (CB) position on plasmonic hydrogen (H-2) formation under visible light irradiation over gold (Au) nanoparticles supported on semiconductors because there were no appropriate materials for which the CB position gradually changes. In this study, we analyzed the flatband potential of strontium ion (Sr2+)-doped cerium.IV) oxide (CeO2:Sr) and found that the CB position gradually shifted negatively from +0.031 V to -1.49 V vs. NHE with an increase in the Sr2+ mole fraction. Plasmonic photocatalysts consisting of Au nanoparticles, CeO2:Sr and a platinum (Pt) cocatalyst were prepared and characterized by using X-ray diffraction, UV-vis spectroscopy, and transmission electron spectroscopy. Photocatalytic reaction under visible light irradiation revealed that H-2 was produced over Au nanoparticles supported on CeO2:Sr having the CB potential of -0.61 V vs. NHE and that the negative limit of the CB position for electron injection from Au nanoparticles existed between -0.61 V and -1.49 V vs. NHE. We found that Au/CeO2:Sr plasmonic photocatalysts also produced H-2 without the aid of a Pt cocatalyst due to the sufficiently negative potential of electrons injected into the CB of CeO2:Sr.
机译：没有信息的影响导带(CB)在电浆的立场氢气(h2)在可见光下形成辐照对黄金(Au)纳米颗粒因为没有支持半导体适当的材料的CB的位置逐渐改变。flatband锶离子(Sr2 +)再版的潜力cerium.IV)氧化(CeO2: Sr)和发现CB地位逐渐转移负面+ 0.031V -1.49 V和新人道与增加Sr2 +摩尔分数。Au纳米粒子组成的,CeO2: Sr和铂(Pt)准备和助催化剂利用x射线衍射、紫外可见光谱和透射电子光谱学。可见光照射透露,2生产/ Au纳米颗粒支持CeO2: Sr -0.61 V的CB潜力vs。新人道,CB的消极的限制位置从盟电子注入纳米颗粒之间存在-0.61 V和-1.49 V与新人道。论文也产生了2没有援助Pt的助催化剂由于充分电子注入的潜在负面影响CB CeO2: Sr。

著录项

相似文献

  • 外文文献
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