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您的检索式：作者名="BAO Chengyu"
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| 1 | Characteristics of the Large Area Surface Dielectric Barrier Discharge with a Multi-electrode Configuration显示文摘Surface gas discharge(SGD)plasmas have potential applications in the fields of active flow control,gas purification,heat transfer enhancement,etc.In order to obtain a uniform,stable and large-area SGD at atmosphere,a multi-electrode SGD plasma generator is designed in this paper.The major features of this newly-designed SGD plasma generator is as follows:the air-exposed upper grounded electrodes are made of nine tungsten wires and flush mounted on the dielectric PTFE barrier layer,while the lower powered electrode is made of a copper foil and encapsulated inside the PTFE material to avoid the ignition of the gas discharges below the dielectric barrier layer.The measurements on the electrical characteristics,fast imaging of discharges and the preliminary numerical analysis on the electric field distributions suggest that the multi-electrode configuration of the plasma generator plays a crucial role in enhancing the local electrical field,and subsequently,leads to the stable,quasi-uniform and large-area surface discharges. | LI Heping CHEN Guoxu WANG Zhibin GE Nan BAO Chengyu | 2013 | 高电压技术2013，39，9： | 4 |
| 2 | Effect of Cu promoter on Ni-based SBA-15 catalysts for partial oxidation of methane to syngas显示文摘A series of Ni/SBA-15 catalysts with 5wt% to 15wt% Ni content as well as a series of 12.5%Ni/Cu/SBA-15 catalysts with 1% to 10% copper content were prepared by the impregnation method. The catalytic performance for partial oxidation of methane was investigated in a continuous flow microreactor under atmospheric pressure. The textural and chemical properties of the catalysts were characterized by XRD,TEM,BET and H 2-TPR techniques. The results indicated that the catalysts modified with Cu promoter showed better performance than those without modification. For the 12.5%Ni/2.5%/Cu/SBA-15 catalyst,at 850 C the conversion of CH 4 reached 97.9% and the selectivity of CO and H 2 reached 98.0% and 96.0%,respectively. In XRD patterns of the Ni/Cu/SBA-15 catalyst with 7.5 to 10% Cu contents there were CuO characteristic peaks beside NiO characteristic peaks. The mesoporous structure of SBA-15 was retained in all of the catalysts. TPR analysis of the catalysts revealed that a strong interaction between Ni,Cu promoter and SBA-15 support may be existed. This interaction enhanced significantly the redox properties of the catalysts resulting in the higher catalytic activity. | Fabien Habimana Xiujin Li Shengfu Ji Bao Lang Daoan Sun Chengyue Li | 2009 | Journal of Natural Gas Chemistry2009，18，4： | 4 |
| 3 | Effect of MgO promoter on Ni-based SBA-15 catalysts for combined steam and carbon dioxide reforming of methane显示文摘A series of Ni/SBA-15 catalysts with Ni contents ranging from 5 wt% to 15 wt%, as well as another series of 10%Ni/MgO/SBA-15 catalysts, in which the range of the MgO content was from 1 wt% to 7 wt%, were prepared, and their catalytic performances for the reaction of combined steam and carbon dioxide reforming of methane were investigated in a continuous flow microreactor. The structures of the catalysts were characterized using the XRD, H2-TPR and CO2-TPD techniques. The results indicated that the CO selectivity for this reaction was very close to 100%, and the H2/CO ratio of the product gas could be controlled by changing the H2O/CO2 molar ratio of the feed gas. The simultaneous and plentiful existing of steam and CO2 had a significant influence on the catalytic performance of the 10%Ni/SBA-15 catalyst without modification. After reacting at 850 °C for 120 h over this catalyst, the CH4 conversion dropped from 98% to 85%, and the CO2 conversion decreased from 86% to 53%. However, the 10%Ni/3%MgO/SBA-15 catalyst exhibited a much better catalytic performance, and after reacting for 620 h, the CO2 conversion over this catalyst dropped from 92% to around 77%, while the CH4 conversion was not decreased. Oxidation of the Ni0 species as well as carbon deposition during the reaction were the main reasons for the deactivation of the catalyst without modification. On the other hand, modification by the MgO promoter improved the dispersion of the Ni0 species, and enhanced the CO2 adsorption affinity which in turn depressed the occurring of carbon deposition, and thus retarded the deactivation process. | Bingyao Huang Xiujin Li Shengfu Ji Bao Lang Fabien Habimana Chengyue Li | 2008 | Journal of Natural Gas Chemistry2008，17，3： | 3 |
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