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| 1 | Role of nickel on vanadium poisoned FCC catalyst: A study of physiochemical properties显示文摘Active sites of Fluid catalytic cracking(FCC) catalyst are poisoned during operation in the FCC reactor due to causes including feedstock contaminant metals deposition.This leads to activity,selectivity and increasing coking problems,thereby raising concern to the refiner.This work investigated effect of nickel coexisting with vanadium in the FCC feedstock on the standard FCC catalyst during cracking process,in which destruction of active sites occurs as a result of the metals deposition.Laboratory simulated equilibrium catalysts(E-cats) were studied by XRD,FTIR spectroscopy,N_2 adsorption,solid state MAS-NMR,SEM and H_2-TPR.Results revealed that vanadium,above a certain concentration in the catalyst,under hydrothermal conditions,is highly detrimental to the catalyst's structure and activity.Conversely,nickel hardly affects the catalyst structure,but its co-presence in the catalyst reduces destructive effects of vanadium.The mechanism of nickel inhibition of vanadium poisoning of the catalyst is discussed. | U.J.Etim B.Xu P.Bai Rooh Ullah F.Subhan Z.Yan | 2016 | Journal of Energy Chemistry2016，25，4： | 5 |
| 2 | PMMA/石墨导电复合材料的制备与表征显示文摘以可膨化石墨为原料,高温处理得到膨化石墨,再经过超声处理,得到纳米薄片石墨。将得到的纳米薄片石墨与甲基丙烯酸甲酯单体在超声作用下预聚,灌模,得到块状的聚甲基丙烯酸甲酯(PMMA)/石墨复合材料。用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、选区电子衍射SAD、红外、热重等分析仪器表征了纳米石墨薄片及PMMA/石墨复合材料。测试了复合材料的力学、电学性能,发现在室温下该复合材料的渗滤阀值为1.3%(wt),且保证石墨含量在1.4%(wt)时,即可保证复合材料具有良好的电学和力学性能。 | 黄光平 洪若瑜 B.Xu 李洪钟 尉东光 | 2008 | 化学研究与应用2008，20，7： | 4 |
| 3 | Micro injection of metallic glasses parts under ultrasonic vibration显示文摘This work investigates the evolution of structure and mechanical performance of metallic glasses(MGs)under a proposed rapid forming approach. Through the unique ultrasonic-assisted micro injection method, micro MGs parts with fine dimensional accuracy were successfully fabricated. The temperature during the micro injection is higher than the glass transition temperature and lower than the crystallization temperature. Differential scanning calorimeter curve and X-ray diffraction pattern show that the MGs micro parts keep the amorphous nature after the ultrasonic-assisted micro injection. Our results propose a novel route for the fast forming of MGs and have promising applications in the rapid fabrication of micro scale products and devices. | X.Liang J.Ma X.Y.Wu B.Xu F.Gong J.G.Lei T.J.Peng R.Cheng | 2017 | Journal of Materials Science & Technology2017，33，7： | 4 |
| 4 | Enhancement of surface wettability via micro-and nanostructures by single point diamond turning显示文摘Studies on surface wettability have received tremendous interest due to their potential applications in research and industrial processes. One of the strategies to tune surface wettability is modifying surface topography at micro-and nanoscales. In this research, periodic micro-and nanostructures were patterned on several polymer surfaces by ultra-precision single point diamond turning to investigate the relationships between surface topographies at the micro-and nanoscales and their surface wettability. This research revealed that single-point diamond turning could be used to enhance the wettability of a variety of polymers, including polyvinyl chloride(PVC), polyethylene 1000(PE1000), polypropylene copolymer(PP) and polytetrafluoroethylene(PFTE), which cannot be processed by conventional semiconductor-based manufacturing processes. Materials exhibiting common wettability properties(θ≈ 90°) changed to exhibit 'superhydrophobic' behavior(θ > 150°). Compared with the size of the structures, the aspect ratio of the void space between micro-and nanostructures has a strong impact on surface wettability. | Nicolás Cabezudo Jining Sun Behnam Andi Fei Ding Ding Wang Wenlong Chang Xichun Luo Ben B.Xu | 2019 | Nanotechnology and Precision Engineering2019，2，1： | 2 |
| 5 | Spectroscopy and structural state of V4+ ions in lithium aluminosilicate glass and glass-ceramics显示文摘 | Y.H.Li K.M.Liang J.W.Cao B.Xu | | 0，，： | 1 |
| 6 | Evaluation of Fabric Smoothness Appearance Using A Laser Profilometer显示文摘 | B.Xu D.F.Cuminato N.M.Keyes | | 0，，12： | 1 |
| 7 | 在纤维图像处理中对多纤维横截面自动分离的一种新的分割算法显示文摘 | B.Xu 纪峰 吴兆平 冯毅力 李汝勤 | 2000 | 国外纺织技术(纺织针织服装化纤染整)2000，0，9： | 1 |
| 8 | QTL analysis of seed storability in rice显示文摘 | D. L.Zeng L. B.Guo Y. B.Xu K.Yasukumi L. H.Zhu Q.Qian | 2006 | Plant Breeding2006，，1： | 1 |
| 9 | Intraindustry Trade and the Skill Premium:Theory and Evidence显示文摘 | E.Dinopoulos C.Syropoulos B.Xu | | 0，，01： | 1 |
| 10 | Endogenous Technology Bias,International Trade,and Relative Wages显示文摘 | B.Xu | | 0，，01： | 1 |
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