The Characteristics of Thin Film Bismuth Vanadium Oxide (Bivo4) Semiconductor Material as Anode for Electrolysis of Water

Authors

  • Achmad Walid
  • Sudjito Soeparman
  • Slamet Wahyudi
  • Mega Nur Sasongko

Abstract

The characteristics of bismuth vanadium oxide BiVO4 with monoclinic  crystal structures were studied. The anode is made by coating indium tin oxide with BiVO4 powder. Indium tin oxides were spin-coated with BiVO4 powder. Anode characteristics tested by morphological tests (SEM, XRD). The technique used in making anodes is the spin coating. The analysis shows the peak position in the crystal plane of BiVO4 at 2 Theta = 28,8986 degrees, 18,8724 degrees,53,3284degrees, which is related to the reflection of BiVO4 with reference number JCPDS 083-1699. Thus the Bismuth Vanadium Oxide crystal structure is monoclinic. Following the shape of the small peak, crystal structure is observed and shows a good crystal shape. Scanning Electron Microscopy determined the morphology of BiVO4 samples. SEM photos shown in the figure show that the particle size is mostly spherical and slightly plate-shaped. From the photo, it can see that the surface of the particles has many cavities. The largest cavity showed in the figure, namely at 800 rpm, 7 seconds deposition time. With the presence of a small cavity increases the possibility of electron jumps between particles forming particles and enlarging currents.

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Published

2020-02-03

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Articles