物理化学学报 >> 2006, Vol. 22 >> Issue (03): 330-334.doi: 10.3866/PKU.WHXB20060315

研究论文 上一篇    下一篇

反应压强变化对Fe∶NiOx阳极催化薄膜性质的影响

李海玲; 王文静; 亢国虎; 黄金昭; 徐征   

  1. 北京太阳能研究所, 北京 100083; 北京交通大学光电子技术研究所, 信息存储、显示与材料开放实验室, 北京 100044
  • 收稿日期:2005-09-07 修回日期:2005-11-07 发布日期:2006-03-10
  • 通讯作者: 李海玲 E-mail:lee1978s@sina. com

The Effect of Reactive Pressure to Fe:NiOx Film as Anode Catalytic Film in Hydrogen Producing System by Solar Cell

LI Hai-Ling; WANG Wen-Jing; KANG Guo-Hu; HUANG Jin-Zhao; XU Zheng   

  1. Beijing Solar Energy Research Institute, Beijing 100083, P. R. China; Laboratory of Materials for Information Storage and Display, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, P. R. China
  • Received:2005-09-07 Revised:2005-11-07 Published:2006-03-10
  • Contact: LI Hai-Ling E-mail:lee1978s@sina. com

摘要: 采用磁控溅射法在镍衬底上制备了不同性质的Fe:NiOx薄膜, 通过改变反应压强, 发现薄膜的催化活性随着压强的增大而提高. 进一步利用EDX、XRD、XPS、SEM等分析发现, 薄膜的有效表面积、结晶度以及样品中Ni3+的含量都对样品的催化活性有影响. 另外对薄膜的透过特性也进行了研究, 发现当膜厚超过1000 nm后, 对波长小于500 nm的可见光几乎全部吸收, 表现出了很差的透光特性.

关键词: 析氧反应, 催化薄膜, 制氢, 过电势, 磁控溅射

Abstract: By changing the sputtering conditions, Fe∶NiOx films with different catalytic behaviors were fabricated. With the increase of working pressure the overpotential in 100 mA•cm-2 changed from 780 mV at 1.0 Pa to 330 mV at 4.0 Pa. At the same time the Tafel slop also decreased dramatically from 71 mV•dec-1 to 53 mV•dec-1. Then by further analysis of EDX, XRD, XPS, SEM, we found that the crystallinity and the effective reactive surface area, especially the content of Ni3+, all can affect the catalytic properties. Lastly, we studied the transmittance of Fe:NiOx film in the range of visible light. But as the anode catalytic film, the transmittance of Fe:NiOx film is poor, especially with the increase of depth.

Key words: Oxygen evolution reaction, Catalytic film, Hydrogen production, Overpotential, Magnetron sputtering