A new catalyst of AlCu@ZnO for hydrogen evolution reaction
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Date
2018Metadata
Citation
Hüner, B., Farsak, M., Telli, E. (2018). A new catalyst of AlCu@ZnO for hydrogen evolution reaction. International Journal of Hydrogen Energy, 43(15), 7381-7387. DOI: 10.1016/j.ijhydene.2018.02.186.Abstract
Thin films of undoped ZnO, Al-doped ZnO, Cu-doped ZnO, and AlCu@ZnO deposited on
indium tin oxide were performed by the sol-gel spin coating method. The prepared ZnO
thin films were investigated for their structural and electrical properties after annealing at
500 C for 1 h. ZnO thin films were characterized by electrochemical impedance spectroscopy,
linear sweep voltammetry, scanning electron microscopy, Fourier transform
infrared spectroscopy and Mott Schottky. According to the results obtained from the
Nyquist diagrams of the ZnO thin films, the resistance value was found to decrease with
binary doping and the resistance value was found to be lowest in AlCu@ZnO doped thin
film containing 0.01 M Al and 0.1 M Cu. As ZnO thin films go to cathodic potentials, it is
seen that the cathodic current value of ZnO with undoped is the lowest. It has been found
that only Al and Cu doping showed less cathodic current than double doping.