脉冲电晕等离子体下甲烷偶联反应研究金属氧化物的多相催化作用

考察了常温常压脉冲电晕等离子体作用下金属氧化物对甲烷脱氢偶联反应的催化作用, 观察到不同催化剂在脉冲电晕等离子体作用下的催化活性差别很大, 且对C_2产物的分布具有一定的调变作用。γ-Mn_2O_3/γ-Al_2O_3催化剂的C_2烃收率较空白载体提高了近2倍,C_2烃选择性提高30%以上, 该催化剂与脉冲电晕等离子体的结合可使其能量效率提高2倍以上。提出了一种等离子体催化作用促进甲烷脱氢偶联反应的初步模型

脉冲电晕等离子体下甲烷偶联反应研究金属氧化物的多相催化作用

考察了常温常压脉冲电晕等离子体作用下金属氧化物对甲烷脱氢偶联反应的催化作用, 观察到不同催化剂在脉冲电晕等离子体作用下的催化活性差别很大, 且对C_2产物的分布具有一定的调变作用。γ-Mn_2O_3/γ-Al_2O_3催化剂的C_2烃收率较空白载体提高了近2倍,C_2烃选择性提高30%以上, 该催化剂与脉冲电晕等离子体的结合可使其能量效率提高2倍以上。提出了一种等离子体催化作用促进甲烷脱氢偶联反应的初步模型

脉冲电晕等离子体作用下甲烷偶联反应无氧气氛下

在常温压下，对脉冲电晕等离子体应用于甲烷无氧气氛下脱氢偶联反应进行了研究。考察了脉冲电压极性和等离子体注入能量对甲烷脱氢偶联反应的影响，并引入能量效率对等离子体能量与甲烷脱氢偶联反应的耦合进行了讨论。结果表明，正电晕的能量效率高于负电晕

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies