Adsorption of NO2 by hydrazine hydrate-reduced graphene oxide

Chuang Li; Li Cai; Wei-Wei Li; Dan Xie; Bao-Jun Liu; Lan Xiang; Xiao-Kuo Yang; Dan-Na Dong; Jia-Hao Liu; Cheng Li; Bo Wei

doi:10.7498/aps.68.20182242

Journals >Acta Physica Sinica >Volume 68 >Issue 11 >Page 118102-1 > Article

Acta Physica Sinica
Vol. 68, Issue 11, 118102-1 (2019)

Adsorption of NO₂ by hydrazine hydrate-reduced graphene oxide

Chuang Li¹, Li Cai^1、*, Wei-Wei Li^1、2, Dan Xie^2、*, Bao-Jun Liu³, Lan Xiang⁴, Xiao-Kuo Yang¹, Dan-Na Dong¹, Jia-Hao Liu¹, Cheng Li¹, and Bo Wei¹

Author Affiliations

¹Department of Basic Science, Air Force Engineering University, Xi’an 710051, China

²Tsinghua National Laboratory for Information Science and Technology, Institute of Microelectronics, Tsinghua University, Beijing 100084, China

³The First Aeronautic Institute, Air Force Engineering University, Xinyang 464000, China

⁴Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

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DOI: 10.7498/aps.68.20182242 Cite this Article

Chuang Li, Li Cai, Wei-Wei Li, Dan Xie, Bao-Jun Liu, Lan Xiang, Xiao-Kuo Yang, Dan-Na Dong, Jia-Hao Liu, Cheng Li, Bo Wei. Adsorption of NO₂ by hydrazine hydrate-reduced graphene oxide [J]. Acta Physica Sinica, 2019, 68(11): 118102-1 Copy Citation Text

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Real-time response curves to 1−40 ppm NO2.对1—40 ppm NO2的实时响应曲线

Fig. 1. Real-time response curves to 1−40 ppm NO₂. 对1—40 ppm NO₂的实时响应曲线

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Fig. 2. The plot of response vs. concentration. 响应与浓度的关系

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Fig. 3. The plot of recovery vs. concentration. 恢复率与浓度的关系图

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Fig. 4. Repeatability of the sensor after exposure to 10 ppm NO₂. 传感器对10 ppm二氧化氮气体响应的重复性测试

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Fig. 5. Response and recovery times of the sensor to 5 ppm NO₂. 传感器对5 ppm NO₂气体的响应和恢复时间

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敏感材料	浓度	响应度	响应时间	恢复时间	文献
注: a) 1 ppb = 10^－9; b) G_a, 在干燥空气中的电导; G_g, 在测试气体中的电导; c) R_a, 在干燥空气中的电阻; R_g, 在测试气体中的电阻; d) $\Delta R$, 由气体浓度变化导致的电阻的相对改变, $\Delta R={R_{\rm{a}}} - {R_{\rm{g}}}.$
rGO	5 ppm	$1.03\left( {{R_{\rm{a}}}/{R_{\rm{g}}}} \right)$	~5.3 min	~13 min	本文
低温热还原rGO	2 ppm	$1.56\left( {{G_{\rm{g}}} - {G_{\rm{a}}}} \right)/{G_{\rm{a}}}$	~30 min	> 30 min	[40]
机械剥离石墨烯	2.5 ppm	$0.005\left( {{R_{\rm{g}}}/{R_{\rm{a}}}} \right)$	~1 h	~2.5 h	[41]
CVD石墨烯	10 ppm	15% $\left( {\Delta R/{R_{\rm{a}}}} \right)$	~30 min	~45 min	[42]
外延生长的石墨烯	15 ppm	7.50% $ \left[ {\left( {{G_{\rm{g}}} - {G_{\rm{a}}}} \right)/{G_{\rm{a}}}} \right]$	~7.5 min	~17 min	[43]

Table 1.

Graphene based gas sensors for NO₂ detection.

不同石墨烯基气体传感器检测NO₂性能对比

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