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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In this study, hierarchical mesoporous CuO spheres, ZnO flowers, and heterojunction CuO/ZnO nanostructures were fabricated via a facile hydrothermal method. The as-prepared materials were characterized in detail using various analytical methods such as powder X-ray diffraction, micro Raman spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, and transmission electron microscopy. The obtained results are consistent with each other. The H2S-sensing characteristics of the sensors fabricated based on the CuO spheres, ZnO flowers, and CuO/ZnO heterojunction were investigated at different temperatures and gas concentrations. The sensor based on ZnO flowers showed a maximum response of ~141 at 225 °C. The sensor based on CuO spheres exhibited a maximum response of 218 at 175 °C, whereas the sensor based on the CuO/ZnO nano-heterostructure composite showed a maximum response of 344 at 150 °C. The detection limit (DL) of the sensor based on the CuO/ZnO heterojunction was ~120 ppb at 150 °C. The CuO/ZnO sensor showed the maximum response to H2S compared with other interfering gases such as ethanol, methanol, and CO, indicating its high selectivity.
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참고문헌 (22)
참고문헌 신청
A. Shanmugasundaram / 2019 / Hierarchical nanohybrids of B-and N-codoped graphene/mesoporous NiO nanodisks : an exciting new material for selective sensing of H2S at near ambient temperature / J. Mater. Chem. A 7:9263~9278
S. K. Ganapathi / 2019 / Anomalous Sensing Response of NiO Nanoparticulate Films towards H2S / ACS App. Nano Mater 2(10):6726~6737
D. Zhang / 2019 / Flexible and highly sensitive H2S gas sensor based on in-situ polymerized SnO2/rGO/PANI ternary nanocomposite with application in halitosis diagnosis / Sens. Actuator B 289(15):32~41
Gautam Kumar Naik / 2019 / Synthesis of Au@TiO2 Core-shell Nanoparticle-decorated rGO Nanocomposite and its NO2 Sensing Properties / 센서학회지 28(4):225~230
Seung Yeop Yi / 2019 / In-decorated NiO Nanoigloos Gas Sensor with Morphological Evolution for Ethanol Sensors / 센서학회지 28(4):231~235
S. K. Ganapathi / 2019 / Anomalous Sensing Response of NiO Nanoparticulate Films towards H2S / ACS App. Nano Mater 2(10):6726~6737
D. Zhang / 2019 / Flexible and highly sensitive H2S gas sensor based on in-situ polymerized SnO2/rGO/PANI ternary nanocomposite with application in halitosis diagnosis / Sens. Actuator B 289(15):32~41
Gautam Kumar Naik / 2019 / Synthesis of Au@TiO2 Core-shell Nanoparticle-decorated rGO Nanocomposite and its NO2 Sensing Properties / 센서학회지 28(4):225~230
Seung Yeop Yi / 2019 / In-decorated NiO Nanoigloos Gas Sensor with Morphological Evolution for Ethanol Sensors / 센서학회지 28(4):231~235
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