Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (03): 330-334.doi: 10.3866/PKU.WHXB20060315

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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

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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