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In order to investigate the effect of NiO on the ethanol gas sensing performance of α-Fe₂O₃ nanoparticles, NiO and α-Fe₂O₃ nanoparticles are synthesized by hydrothermal method. The sensor with α-Fe₂O₃ and NiO nanoparticles mixed at an optimum ratio of 7:3 showed 3.8 times improved sensing performance for 200ppm ethanol gas at 200°C. The enhanced gas sensing performance can be considered to be caused by pn heterojunction at the grain boundaries of α-Fe₂O₃ and NiO nanopartcles.
목차
Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (24)
참고문헌 신청
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Yuanhui Zheng, Yao Cheng, Yuansheng Wang, Feng Bao, Lihua Zhou, Xiaofeng Wei, Yingying Zhang, Qi Zheng, Quasicubic α-Fe2O3 Nanoparticles with Excellent Catalytic Performance, J. Phys. Chem. B, 110 (2006) 3093-3097.
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Ri Yu, Jae-Hwan Pee, Yoo Jin Kim, Color Evolution and Phase Transformation Behaviors of Core-Shell Yellow Iron(III) Oxy-Hydroxide Pigments, J. Nanosci. Nanotechnol., 14 (2014) 2667-2669.
Yuanhui Zheng, Yao Cheng, Yuansheng Wang, Feng Bao, Lihua Zhou, Xiaofeng Wei, Yingying Zhang, Qi Zheng, Quasicubic α-Fe2O3 Nanoparticles with Excellent Catalytic Performance, J. Phys. Chem. B, 110 (2006) 3093-3097.
Jiwei Deng, Jianmin Ma, Lin Mei, Yunjing Tang, Yuejiao Chen, Ting Lv, Zhi Xu, Taihong Wang, Porous α-Fe2O3 Nanosphere-Based H2S Sensor with Fast Response, High Selectivity and Enhanced Sensitivity, J. Mater. Chem. A, 1 (2013) 12400- 12403.
Jin-San Xu, Ying-Jie Zhu, Monodisperse Fe3O4 and γ-Fe2O3 Magnetic Mesoporous Microspheres as Anode Materials for Lithium-Ion Batteries, ACS Appl. Mater. Interfaces, 4 (2012) 4752-4757.
Ri Yu, Jae-Hwan Pee, Yoo Jin Kim, Color Evolution and Phase Transformation Behaviors of Core-Shell Yellow Iron(III) Oxy-Hydroxide Pigments, J. Nanosci. Nanotechnol., 14 (2014) 2667-2669.
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UCI(KEPA) : I410-ECN-0101-2016-581-002663499