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Highly uniform and well-dispersed Zeolitic Imidazolate Framework-7 (ZIF-7) particles were prepared by the precipitation of Zn2+ using benzimidazole, which were converted into ZnO nanoparticles by heat treatment at 500 °C for 24 h. The ZIF-7 derived ZnO nanoparticles showed abundant mesopores, high surface area, and good dispersion. The gas sensing characteristics toward 5 ppm ace-tone, ethanol, trimethylamine, ammonia, p-xylene, toluene, benzene, and carbon monoxide and carbon dioxide were investigated at 350– 450 oC. ZIF-7 derived ZnO nanoparticles exhibited high response to 5 ppm acetone (Ra/Rg=57.6; Ra: resistance under exposure to the air, Rg: resistance under exposure to the gas) at 450 oC and negligible cross-responses to other interference gases (trimethylamine, ammonia, p-xylene, toluene, benzene, carbon monoxide, carbon dioxide) and relatively low responses to ethanol. ZIF derived synthesis of metal oxide nanoparticles can be used to design high performance acetone sensors
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참고문헌 (21)
참고문헌 신청
A. M. Ruiz / 2003 / Cr-doped TiO2 gas sensor for exhaust NO2 monitoring / Sens. Actuator B-Chem 93 : 509 ~ 518
Gil Mo Nam / 2016 / Characterization of F- and Al-codoped ZnO Transparent Conducting Thin Film prepared by Sol-Gel Spin Coating Method / 한국세라믹학회지 53 (3) : 338 ~ 342
H. Bux / 2009 / Zeolitic Imidazolate Framework Membrane with Molecular Sieving Properties by Microwave-Assisted Solvothermal Synthesis / J. Am. Chem. Soc 131 : 16000 ~ 16001
J. -S. Kim / 2016 / Highly sensitive and selective detection of ppb-level NO2 using multi-shelled WO3yolk-shell spheres / Sens. Actuator B-Chem 229 : 561 ~ 569
J. Liu / 2009 / Novel porous single-crystalline ZnO nanosheets fabricated by annealing ZnS(en)0. 5(en = ethylenediamine)precursor. Application in a gas sensor for indoor air
Gil Mo Nam / 2016 / Characterization of F- and Al-codoped ZnO Transparent Conducting Thin Film prepared by Sol-Gel Spin Coating Method / 한국세라믹학회지 53 (3) : 338 ~ 342
H. Bux / 2009 / Zeolitic Imidazolate Framework Membrane with Molecular Sieving Properties by Microwave-Assisted Solvothermal Synthesis / J. Am. Chem. Soc 131 : 16000 ~ 16001
J. -S. Kim / 2016 / Highly sensitive and selective detection of ppb-level NO2 using multi-shelled WO3yolk-shell spheres / Sens. Actuator B-Chem 229 : 561 ~ 569
J. Liu / 2009 / Novel porous single-crystalline ZnO nanosheets fabricated by annealing ZnS(en)0. 5(en = ethylenediamine)precursor. Application in a gas sensor for indoor air
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