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您的检索式：作者名="Guoyuan Sun"
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| 1 | Nanostructured strategies towards boosting organic lithium-ion batteries显示文摘Pursuing material development for next-generation batteries,organic electrode materials have shown great potential for lithium-ion batteries.However,their widespread adopting is plagued by intrinsic problems such as poor electronic conductivity,high dissolution inside electrolytes and unstable chemical peculiarity.Recently,nanostructured-strategies promoted organic electrodes with exotic properties for enhancing electron and ion transport together with the stability during electrochemical process,have received increasing attention and have been extensive applied in boosting the organic lithium-ion based energy storage.In this review,we summarize the applications of nanostructures to improve the performance of both organic anodes and cathodes,including(i)nanoscale design of zero-dimensional organic electrode materials,(ii)strategies of one-dimensional nanostructured organic electrode materials,(iii)construction of two-dimensional nanosized organic composite electrodes,and(iv)three-dimensional exploration of nanosized organic electrodes.We hope to stimulate high-quality applied research on understanding and handling the relationship between the nanostructure and performance of organic lithium-ion batteries that might speed up the commercialization of organic lithium ion batteries. | Yujing Liu Guoyuan Sun Xiaohan Cai Fan Yang Cong Ma Min Xue Xinyong Tao | 2021 | Journal of Energy Chemistry2021，30，3： | 2 |
| 2 | Spheroidization behavior of dendritic b.c.c. phase in Zr-based β-phase composite显示文摘The spheroidization behavior of the dendritic b.c.c. phase dispersed in a bulk metallic glass (BMG) matrix was investigated through applying semi-solid isothermal processing and a subsequent rapid quenching procedure to a Zr-based β-phase composite. The Zr-based composite with the composition of Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5 was prefabricated by a water-cooled copper mold-casting method and characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results show that the composite consists of a glassy matrix and uniformly distributed fine dendrites of the β-Zr solid solution with the body-centered-cubic (b.c.c.) structure. Based on the differential scanning calorimeter (DSC) examination results, and in view of the b.c.c. β-Zr to h.c.p. α-Zr phase transition temperature, a semi-solid holding temperature of 900℃ was determined. After reheating the prefabricated composite to the semi-solid temperature, followed by an isothermal holding process at this temperature for 5 min, and then quenching the semi-solid mixture into iced-water; the two-phase microstructure composed of a BMG matrix and uniformly dispersed spherical b.c.c. β-Zr particles with a high degree of sphericity was achieved. The present spheroidization transition is a thermodynamically autonomic behavior, and essentially a diffusion process controlled by kinetic factors; and the formation of the BMG matrix should be attributed to the rapid quenching of the semi-solid mixture as well as the large glass-forming ability of the remaining melt in the semi-solid mixture. | Sun Guoyuan Li Ping Chen Wei Song Xuding | 2013 | China Foundry2013，10，2： | 1 |
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