• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>American Journal of Analytical Chemistry >A New Insight in the Physical and Photoelectrochemical Properties of Molybdenum Disulfide Alpha-Hematite Nanocomposite Films
【24h】

A New Insight in the Physical and Photoelectrochemical Properties of Molybdenum Disulfide Alpha-Hematite Nanocomposite Films

机译：二硫化钼α-赤铁矿纳米复合膜的物理和光电化学性质的新洞察

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The alpha (α)-hematite (Fe2O3) as photoanode has been used for photoelectrochemical applications due to low bandgap, low cost, high chemical stability, nontoxicity, and abundance in nature. The doping with various transition metals, formation of nanostructured and nanocomposite of α-Fe2O3 have been attempted to enrich the carrier mobility, surface kinetics and carrier diffusion properties. The manuscript is an attempt to improve the photoelectrochemical properties of α-Fe2O3 by formation of nanocomposite with dichalcogenide (molybdenum disulfide (MoS2) nanomaterials. The nanocomposite of MoS2-α-Fe2O3 have been synthesized by varying the amount of MoS2 in sol-gel synthesis process. The nanocomposite MoS2-α-Fe2O3 materials were characterized using UV-visible, FTIR, SEM, X-ray diffraction, Raman and particle analyzer. The photoelectrochemical properties were investigated using cyclic voltammetry and chronoamperometry studies. The optical and structural properties of MoS2-α-Fe2O3 nanocomposite have been found to be dependent on MoS2 doping. The band gap has shifted whereas; the structure is more prominent as flower-like morphology, which is a result of doping of MoS2. The photocurrent is more pronounced with and without light exposition to MoS2-α-Fe2O3 based electrode in photoelectrochemical cell. We have understood the photoelectrochemical water splitting using nanocomposite α-Fe2O3-MoS2 through schematic representation based on experimental results. The enhanced photoelectrochemical properties of nanocomposite α-Fe2O3-MoS2 films have been observed as compared to pristine α-Fe2O3 and transition metal doped α-Fe2O3 nanostructured films.
机译：α（α） - 赤铁矿（Fe 2 O 3 ）作为光电码已被用于光电化学应用，由于低带隙，低成本，高化学稳定性，无毒和丰富性质。已经试图掺杂各种过渡金属，形成纳米结构和纳米复合材料-FE 2 o 3 的纳米复合材料，以丰富载流子迁移率动力学和载流子扩散特性。原稿是通过用二甲基化物的形成（二氯化钼（MOS <亚泊素材料纳米材料。MOS 2 - α -fe 2 O 3 的纳米复合材料通过改变溶胶 - 凝胶合成过程中的MOS 2 的量来合成。纳米复合材料MOS 2 - α -fe 2使用UV可见，FTIR，SEM，X射线衍射，拉曼和粒子分析仪表征了 3 材料。使用循环伏安法和计时率研究研究了光电化学性质。光学和已发现MOS 2 - α -fe 2 纳米复合材料的结构性能。亚> 2 掺杂。带隙已经转移，而是作为花样的形态更突出，这是掺杂MOS 2 的结果。光电流与MOS 2 - α -fe 2 O 3 基于光电化学的电极，更明显细胞。我们已经理解了使用纳米复合材料的光电化学水分，使用纳米复合材料 -fe 2 O 3 -mos 2 通过基于示意图关于实验结果。纳米复合材料的增强光电化学性质 -fe 2 O 3 -mos 2 薄膜相比观察到原始α -fe 2 O 3 和过渡金属掺杂α -fe 2 O <亚> 3 纳米结构薄膜。

著录项

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