Shape- and phase-controlled synthesis of In₂O₃ with various morphologies and their gas-sensing properties

详细信息    查看全文

• 作者：Xiaoqing Wang ; Maofeng Zhang ; Jinyun Liu ; Tao Luo ; Yitai Qian
• 关键词：Nanomaterials ; In₂O₃ ; Solvothermal ; Gas-sensing
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2009
• 出版时间：28 March 2009
• 年：2009
• 卷：137
• 期：1
• 页码：103-110
• 全文大小：1710 K

文摘

Hexagonal In₂O₃ microspheres, cubic In₂O₃ porous nanoparticles, and cubic In₂O₃ porous nanorectangles were fabricated by calcining precursors at 450 °C, respectively. The precursors InOOH microspheres, In(OH)₃ nanoparticles, and In(OH)₃ nanorectangles were solvothermally synthesized by adjusting the volume ratios of ethylenediamine and distilled water in autoclave at 160 °C. Gas-sensing properties determination of ethanol, formaldehyde, and ammonia gases show that the cubic In₂O₃ porous nanoparticles have a higher response than the hexagonal In₂O₃ microspheres.