【摘 要】
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Porous α-Fe203 nanobelts have been prepared via a solvothermal route and subsequent calcination.The as-prepared nanostructure was characterized by XRD,FESEM,TE
【机 构】
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College of Chemistry,Fuzhou University,Fuzhou 350002,China
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Porous α-Fe203 nanobelts have been prepared via a solvothermal route and subsequent calcination.The as-prepared nanostructure was characterized by XRD,FESEM,TEM,N2 adsorption-desorption isotherms,etc.The α-Fe203 nanobelts presented obvious porous structures with the length of ca.1～2μm,width of ca.200～350 nm and thickness of ca.30～60 nm.It was found that the assistance of inorganic additives played an important role in the shape controlof α-Fe203 nanostructure.The gas-sensing performance of the fabricated sensor based on α-Fe2O3 nanobelts sample was also investigated,and the response towards 1000 ppm acetone can reach 24.4.In addition,the gas-sensing conductive mechanism ofthe sensor was also proposed.
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