New Technique for The Synthesis of GaN:ZnO Photocatalyst by The Use of Solid Nitrogen Sources

2014 Fiscal Year Final Research Report

• Project/Area Number: 24550232
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: Gifu University
• Principal Investigator: SUGIURA Takashi 岐阜大学, 工学(系)研究科(研究院), 教授 (40171144)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 光触媒 / 窒化ガリウム / 窒化物 / 太陽光水素 / 人工光合成 / 固体窒素源

Outline of Final Research Achievements

Solar energy-driven water splitting is receiving considerable interest in hydrogen production as a renewable energy source. We have reported a new technique to synthesize low cost GaN powder under moderate condition, Li3N or LiNH2 were used as a high reactive solid nitrogen source to improve the reaction rate and lowering the reaction temperature. In this report we studied the method to synthesize GaN : ZnO and GaN : InN solid solution powders by the use of these solid nitrogen sources. GaN : ZnO solid solution was successfully synthesized. Anodic photocurrent was clearly observed for the paste electrodes with GaN : ZnO solid solution and this observation indicates that the GaN : ZnO solid solution synthesized in this study shows n-type semiconductivity.
GaN : InN solid solution was also successfully synthesized by the reaction with GaCl3, InCl3 and LiNH2.

Free Research Field

光電気化学