Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge
Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge
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通过磁辅助纳秒脉冲齿轮—圆柱介质阻挡放电促进挥发性有机化合物的去除
DOI：
10.1002/ppap.202100108
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发表时间：
2021-12
影响因子：
3.5
通讯作者：
Yan Wu
中科院分区：
文献类型：
--
作者：
Nan Jiang;Yun Sun;Bangfa Peng;Jie Li;Kefeng Shang;Na Lu;Yan Wu
在本研究中，在齿轮圆柱介质阻挡放电（DBD）中引入垂直于电场的磁场，以提高等离子体密度，提高在大气压下去除挥发性有机化合物的性能。引入0.2 T磁场后，由于电子Larmor运动引起的电离反应增强，放电强度增大，等离子体流带区域扩大，甲苯去除性能较好。时间分辨增强电荷耦合探测器图像表明，磁场增强了主流光和次流光的传播速度，延长了它们的持续时间。光学发射光谱结果表明，施加磁场可以提高N2（C‐B）的振动温度（Tvib）和还原电场（E/N），而N2（C‐B）的旋转温度（Trot）很少受到磁场的影响。根据磁辅助DBD等离子体的机理，在齿轮缸DBD反应器中存在最佳的电场和磁场组合。在16 ~ 20 kV范围内，有磁场的脉冲放电电流、甲苯去除率和能量产率分别比无磁场时提高26% ~ 40%、50% ~ 70%和7% ~ 20%，表明磁辅助DBD等离子体比普通DBD等离子体具有更好的甲苯降解性能。
In this study, a magnetic field perpendicular to the electric field is introduced to the gear‐cylinder dielectric barrier discharge (DBD) to enhance the plasma density and improve the volatile organic compounds removal performance at atmospheric pressure. Higher discharge intensity, enlarged plasma streamers region, and better toluene removal performance are obtained after introducing a 0.2 T magnetic field due to the intensified ionization reactions caused by the Larmor movement of electrons. Time‐resolved Intensified Charge‐coupled Detector images indicate that both the propagation velocities of the primary and secondary streamers are enhanced and their durations are prolonged by the magnetic field. The optical emission spectra results imply that the vibrational temperature (Tvib) of N2(C‐B) and the reduced electric field (E/N) are promoted by applying the magnetic field, while the rotational temperature (Trot) of N2(C‐B) is rarely affected by the magnetic field. There is an optimal combination between the electric field and magnetic field in the gear‐cylinder DBD reactor, according to the mechanism of the magnetically assisted DBD plasma. The pulsed discharge current, toluene removal efficiency, and energy yield with the magnetic field are increased by 26%–40%, 50%–70%, and 7%–20% within the range of 16–20 kV, respectively, compared to those without the magnetic field, implying that magnetically assisted DBD plasma presents superior toluene degradation performance compared to common DBD plasma.
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影响因子：
1.7
作者：
He Zhenghao;Yu Fusheng;Hu Feng;Yu Yun;G. Lina;Li Jin
通讯作者：
He Zhenghao;Yu Fusheng;Hu Feng;Yu Yun;G. Lina;Li Jin
交流纳秒电源驱动同轴介质阻挡放电反应器放电特性研究
影响因子：
1.7
作者：
Wang Qian;Liu Feng;Miao Chuanrun;Yan Bing;Fang Zhi
通讯作者：
Fang Zhi
影响因子：
3.8
作者：
E. Anokhin;D. N. Kuzmenko;S. Kindysheva;V. Soloviev;N. Aleksandrov
通讯作者：
E. Anokhin;D. N. Kuzmenko;S. Kindysheva;V. Soloviev;N. Aleksandrov
影响因子：
1.6
作者：
Longjian Zhao;Y. Zang;Wei Liu;Y. Qian;Xiaoli Zhou
通讯作者：
Longjian Zhao;Y. Zang;Wei Liu;Y. Qian;Xiaoli Zhou
影响因子：
2.2
作者：
E. Marode;D. Djermoune;Philippe Dessante;C. Deniset;Pierre Ségur;François Bastien;Anne Bourdon;Christophe O. Laux
通讯作者：
E. Marode;D. Djermoune;Philippe Dessante;C. Deniset;Pierre Ségur;François Bastien;Anne Bourdon;Christophe O. Laux