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Luminescent properties dependence of water-soluble CdTe quantum dots on stabilizing agents and reaction time

Journal of Central South University 2010年第6期17卷 1148-1154页

作者：李峥汪勇先张国欣韩彦江 Radiopharmaceutical Centre Shanghai Institute of Applied PhysicsChinese Academy of Sciences Graduate University Chinese Academy of Sciences

The influence of stabilizing agents and reaction time on the luminescent properties of water-soluble CdTe quantum dots(QDs) was *** thioglycolic acid(TGA)-CdTe ODs were characterized by TEM,XRD and *** is found that larger-size QDs can be synthesized more easily when L-cysteine(Cys) or golutathione(GSH) is chosen as stabilizing agent and TGA is proper to prepare highly luminescent QDs because of the effect between Cd2+ and sulfhydryl ***,the absorption wavelength,full width at half maximum(FWHM),stokes shift,photoluminescence(PL) quantum yield and PL stability of TGA-CdTe are strongly dependent on reaction time,in which the absorption wavelength changes against reaction time with an exponential *** TGA-CdTe QDs prepared at 2 h possess more excellent luminescent properties.

关键词： CdTe quantum dots stabilizing agent reaction time luminescent property

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A review of electrolyte additives and impurities in vanadium redox flow batteries

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Journal of Energy Chemistry 2018年第5期27卷 1269-1291页

作者： Liuyue Cao Maria Skyllas-Kazacos Chris Menictas Jens Noack School of Chemical Engineering UNSW Sydney 2052 NSW. Australia School of Mechanical and Manufacturing Engineering UNSW Sydney NSW 2052 Australia CENELESE German-Australian Alliance for Electrochemical Technologies for Storage of Renewable Energy School of Mechanical and Manufacturing Engineering UNSW Sydney NSW 2052 Australia Fraunhofer-Institute for Chemical Technology Joseph-von-Fraunhofer-Str. 7. 76327 Pfinztal Germany

As one of the most important components of the vanadium redox flow battery （VRFB）, the electrolyte can impose a significant impact on cell properties, performance and capital cost. In particular, the electrolyte composition will influence energy density, operating temperature range and the practical applications of the VRFB. Various approaches to increase the energy density and operating temperature range have been proposed. The presence of electrolyte impurities, or the addition of a small amount of other chemical species into the vanadium solution can alter the stability of the electrolyte and influence cell perfor- mance, operating temperature range, energy density, electrochemical kinetics and cost effectiveness. This review provides a detailed overview of research on electrolyte additives including stabilizing agents, im- mobilizing agents, kinetic enhancers, as well as electrolyte impurities and chemical reductants that can be used for different purposes in the VRFBs.

关键词： Vanadium redox flow battery Electrolyte additive Precipitation inhibitor stabilizing agent Kinetic enhancer Impurity Immobilizing agents Reducing agent

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