ZnO Branched Nanowires Photoanode for Water Splitting： Effect of Nitrogen Doping by DC Glow Discharge Plasma  

作　　者：Shrok Allami Ying Li Li Liu Tianshu Li 

机构地区：[1]Department of Hydrogen and Biofuel, Ministry of Science and Technology, Baghdad, Iraq [2]Corrosion and Protection Division, Institute of Metal Research, CAS No.62, Wencui Road, Shenyang, China

出　　处：《Journal of Physical Science and Application》2016年第1期221-228,共8页物理科学与应用（英文版）

摘　　要：Photoanode of ZnO branched nanowires, BNW, doped with nitrogen was fabricated to be used in photochemical cell for hydrogen generation from water splitting process. ZnO BNW was first synthesized by hydrothermal method. Followed by time-control DC glow discharge plasma treatment, to optimize nitrogen doping into nanowire structure. Via X-ray photoelectron spectroscopy （XPS） results, BNW with up to 25% atomic ratio of N to Zn was achieved by plasma treatment. XPS studies confirm nitrogen distribution into ZnO BNW as N substitution at O sites of ZnO nanowires and as well screened molecular nitrogen. Modified BNW electronic structure reflected into flat band potential that increased negatively with N contain into BNW cal studies were demonstrated upon dark and illumination at various power densities. Increasing N contain into BNW leads to increase photocurrent on PEC （Photo-electrochemical cell）. Hydrogen generation from water splitting efficiency of 0.3% was achieved for BNW doped with 25% N.

关 键 词：ZnO branched nanowires N doping plasma treatment photochemical cell water splitting. 

分 类 号：O4[理学—物理]