%0 Journal Article
%@ 03603199
%A Mohamed, N.M.
%A Bashiri, R.
%A Chong, F.K.
%A Sufian, S.
%A Kakooei, S.
%D 2015
%F scholars:5660
%I Elsevier Ltd
%J International Journal of Hydrogen Energy
%K Binary alloys; Electrochemical impedance spectroscopy; Electrochemistry; Electrons; Hydrogen production; Photocatalysts; Photoelectrochemical cells; Solar energy; Solar power generation; Thin films; Titanium dioxide, Electron-hole separation; Flat band potential; Photoconversion efficiency; Photocurrent density; Photoelectrochemical behavior; Photoelectrochemical properties; Photoelectrochemicals; TiO2 photocatalyst, Nickel
%N 40
%P 14031-14038
%R 10.1016/j.ijhydene.2015.07.064
%T Photoelectrochemical behavior of bimetallic Cu-Ni and monometallic Cu, Ni doped TiO2 for hydrogen production
%U https://khub.utp.edu.my/scholars/5660/
%V 40
%X Photocatalyst is the heart of the photoelectrochemical (PEC) cell that is used to generate hydrogen by water splitting from solar energy. Thus improving the photoelectrochemical properties will result in better conversion efficiency. This paper presents the investigation of the photoelectrochemical behavior of the synthesized nanostructured Cu-Ni doped TiO2 compared to monometallic Ni and Cu doped TiO2 and also TiO2 photocatalysts. The photoelectrochemical properties of photoanode in the PEC cell showed that 5Cu-5Ni doped TiO2 thin film produced the highest amount of hydrogen (5.3 ml) from photosplitting of water, photocurrent density of 2.29 mA/cm2 at 0.24 V, photoconversion efficiency of 4.33, electron life time of 217.71 ms with the flat band and donor density from Mott-Schottky of -0.93 V and 2.14 � 1021 cm-3, respectively. This better performance compared to other photocatalysts is attributed to the synergetic effect of two metals as charge carriers traps, more electron-hole separation, longer electron lifetime, more negative flat band potential for water splitting and higher electron donor density. © 2015 Hydrogen Energy Publications, LLC.
%Z cited By 51