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8篇 您的检索式:作者名="Guangcheng Xi"
    题名 作者 年代 出处 被引量
1MoS2 yolk-shell microspheres with a hierarchical porous structure for efficient hydrogen evolution显示文摘蛋黄壳体系结构由于他们的唯一的结构和令人兴奋的应用程序吸引了广泛的注意。瞬间 2 被切开水为氢进化认为是最有希望的催化材料之一。在这个工作,一条简单自我模板 solvothermal 途径被反应的哞 2 microspheres 与 L 半胱氨酸与层次多孔的结构为新奇瞬间 2 蛋黄壳 microspheres 的合成开发。dissolutionrecrystallization 形成机制为瞬间 2 蛋黄壳 microspheres 被建议。由于结构的优势,新材料建筑学展览改进了 photoelectrochemical 性质,包括有效的氢进化反应催化活动,高光电流密度,小过电位,和一个低费用转移电阻。Qiqi Zhang Hua Bai Qing Zhang Qiang Ma Yahui Li Chongqing wan Guangcheng Xi 2016Nano Research2016,9,10:6
2Development and CommercialApplication of RSDS-II Technology for Selective Hydrodesulfurization of FCC Naphtha显示文摘The FCC naphtha selective hydrodesulfurization technology(RSDS-II)has been tested with different feedstocks in pilot scale.The results show that RSDS-II technology is viable in terms of its adaptability to different feedstocks.To produce gasoline with a sulfur content of less than 50μg/g by the RSDS-II technology,the gasoline RON loss is less than 1.8,0.9and 0.2 units,respectively,upon processing the conventional high-sulfur and high-olefin FCC naphtha,the high-sulfur MIP naphtha,and the medium-sulfur or low-sulfur MIP naphtha.Upon using the naphtha produced from pre-hydrotreated FCC feedstock as the RSDS-II feedstock to manufacture gasoline with a sulfur content of lower than 10μg/g,the RON loss does not exceed 1.0 unit.The RSDS-II technology has been commercialized successfully at many refineries.The result of operating commercial RSDS-II unit at the Shanghai Petrochemical Company has revealed that upon processing a feedstock containing 38.7 v% —43.3 v% of olefins and 250—470 mg/g of sulfur,the sulfur content in the treated gasoline ranges from 33μg/g to 46μg/g and the RON loss is equal to only 0.3—0.6 units.Till now this RSDS-II unit has been operating smoothly over 30 months.Thanks to its high HDS activity and good selectivity,the RSDS-II technology can meet the refinery’s needs for adequate upgrading of gasoline.Qu Jinhua Xi Yuanbing Li Mingfeng Pan Guangcheng Jin Xin Gao Xiaodong Nie Hong 2013China Petroleum Processing & Petrochemical Technology2013,15,3:6
3Synthesis and facet-dependent photocatalytic activity of strontium titanate polyhedron nanocrystals显示文摘Cubic-perovskite (SrTiO 3) 有一个大潜力在大量应用被利用。然而,当前,很,很少在他们的物理化学的性质上对形状和 SrTiO 3 的方面效果被知道。这大部分由于在在合成期间控制方面的形态学的困难。此处,我们为 singlecrystalline SrTiO 3 的控制方面、控制尺寸的制造描述一条灵巧的线路三角形的棱柱与高度暴露了 { 101 } 方面脸并且 { 111 } 结束脸。他们的 photocatalytic 表演的理论、试验性的研究证明了三角形的棱柱比 nanocubes 展出优异 photocatalytic 活动与暴露( 001 )为器官的沾染物的降级面对,它可以首先被归因于高得多的表面精力{ 101 }方面( 2.97 J/m 2)并且{ 111 }方面( 2.80 J/m 2)比的{ 001 }方面( 0.98 J/m 2)。Junfang Li Hua Bai Wencai Yi Jingyao Liu Yahui Li Qing Zhang Haifeng Yang Guangcheng Xi 2016Nano Research2016,9,5:4
4Path analysis of sap flow of tomato under rain shelters in response to drought stress显示文摘The physiological characters and growth of tomato(Solanum lycopersicum L.)were recorded to be largely affected by different levels of irrigation.The objectives of this research were to determine the effects of deficit irrigation and rain shelters on sap flow,relative water content and the relationship between sap flow and environmental parameters.Experiments under rain shelters conditions were conducted in southern China during the growing seasons in 2012.The threshold of irrigation was designed at 80%field capacity during the whole period(T1,the control),and 30%,40%and 50%decreased water of T1 were applied as the treatments of T2,T3 and T4.The plants subjected to water stress exhibited a decrease in the values of sap flow rate and relative water content.Calculation of 95%confidence level revealed a significant difference of sap flow rate in T4 and T3 as well as the control on sunny and rainy days.The diurnal variation of the sap flow showed a single peak curve on sunny day,while it demonstrated irregular multi-peak variation on rainy days.The study also showed that the most sensitive environmental indicator affecting sap flow was solar radiation,followed by air temperature and vapour pressure deficit.Direct path coefficient was basically consistent with the coefficient of correlation,but there was slight difference between the total contribution R2 and that of variable factors.Shao Guangcheng Huang Doudou Cheng Xi Cui Jingtao Zhang Zhenhua 2016International Journal of Agricultural and Biological Engineering2016,9,2:2
5Determine the position of nanoparticles in cells by using surfaceenhanced Raman three-dimensional imaging显示文摘The development of efficient three-dimensional cell imaging technology is a necessary means to study cell composition and structure,especially to track and monitor the phagocytosis process of nanoparticles by cells.Herein,we prepared a MoO_(2)hollow nanosphere with a strong surface plasmon resonance effect in the visible light region,which exhibited an excellent surface enhanced Raman scattering effect.When the 4-mercaptobenzoic acid(4-MBA)molecules are modified,it can be efficiently used as Raman probe molecules to perform clear three-dimensional cell imaging.No matter when the nanoparticles are located inside the cell,outside the cell or partly inside the cell,they all can be clearly presented by this enhanced Raman probe molecule.These results provide a rapid and accurate method for three-dimensional imaging of cells,especially for tracking the phagocytosis of nanoparticles.Wei Liu Wentao Li Yahui Li Junfang Li Hua Bai Mingqiang Zou Guangcheng Xi 2021Nano Research2021,14,10:1
6Nucleation-dissolution- recrystallization: A new growth mechanism for t-selenium nanotubes 显示文摘XI Guangcheng XIONG Kan ZHAO Qingbiao 2006Cryst Growth Des2006,6,2:1
7Smart design of high‐performance surface‐enhanced Raman scattering substrates显示文摘Surface‐enhanced Raman scattering(SERS)spectroscopy has renowned its fame for the ultra‐high sensitivity and single‐molecule detection ability,and listed as a fingerprint spectrum representative in various trace detection fields.Considerable efforts have been made by researchers to design high‐sensitive SERS‐active substrates ranging from noble metals to semiconductors.This review summarizes the fundamental theories for SERS technique,that is,the electromagnetic enhancement mechanism and chemical enhancement mechanism and the state‐of‐the‐art design strategies for noble metal and semiconductor substrates.It also sheds light on the effective approaches to improve the SERS activity for noble metal substrates,that is,tuning the localized surface plasmon resonance position,the assembling of hot spots,and precise controlling of nanogaps.Although charge transfer is considered as the main reason for the enhancement mechanism for semiconductors at the present stage,the underlying theoretical basis remains mysterious.This review summarized the critical points for SERS‐active substrates design and prospected the future development direction of SERS technology.Xiangyu Meng Lin Qiu Guangcheng Xi Xiaotian Wang Lin Guo 2021SmartMat2021,2,4:0
8Plasmonic rhenium trioxide self-assembled microtubes for highly sensitive, stable and reproducible surface-enhanced Raman spectroscopy detection显示文摘Compared with noble metals, improving the sensitivity of semiconducting surface-enhanced Raman scattering(SERS) substrates is of great significance to their fundamental research and practical application of Raman spectroscopy. Herein, a simple chemical method is developed to synthesize a rhenium trioxide(ReO_(3)) microtubes assembled with highly crystalline nanoparticles. The ReO_(3) microtubes show a strong and well-defined surface plasmon resonance(SPR) behavior in visible region, which is rare for non-noble metals. As a low-cost SERS substrate, the plasmonic ReO_(3) microtubes exhibit a Raman enhancement factor of 8.9×10^(5) and a lowest detection limit of 1.0×10^(-9) mol/L for phenolic pollutants. Moreover, these ReO_(3) microtubule SERS substrates show excellent chemical stability and can resist the corrosion of strong acids and bases.Jingbin Li Zhiwei Jiao Junfang Li Hua Bai Guangcheng Xi 2023Chinese Chemical Letters2023,34,3:0
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