Combustion synthesized hierarchically porous WO3 for selective acetone sensing
Combustion synthesized hierarchically porous WO3 for selective acetone sensing
复制标题
燃烧合成分级多孔 WO3 用于选择性丙酮传感
DOI:
10.1016/j.matchemphys.2016.09.036
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发表时间:
2016-12
影响因子:
4.6
通讯作者:
Wang Yude
中科院分区:
文献类型:
--
作者:
Chen Gang;Xiao Xuechun;Igor Djerdj;Wang Yude
An easy, inexpensive combustion route was designed to synthesize hierarchically porous WO3. The tungsten source was fresh peroxiotungstic acid by dissolving tungsten powder into hydrogen peroxide. To promote the combustion reaction, a combined fuel of both glycine and hydrazine hydrate was used. The microstructure was well-connected pores comprised of subunit nanoparticles. Upon exposing towards acetone gas, the porous WO3based sensor exhibits high gas response, rapid response and recovery, and good selectivity in the range of 5–1000 ppm under working temperature of 300 °C. This excellent sensing performance was plausibly attributed to the porous morphology, which hence provides more active sites for the gas molecules' reaction.
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