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您的检索式：作者名="Depeng Song"
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| 1 | Na2V6O16·2.14H2O nanobelts as a stable cathode for aqueous zinc-ion batteries with long-term cycling performance显示文摘Aqueous zinc-ion batteries(ZIBs) have been considered as one of the most promising electrochemical devices for large-scale energy storage system owing to their low cost and high safety. Herein, Na2V6O16·2.14H2O nanobelts are synthesized and applied as cathode material for ZIBs. The sample displays a high capacity of 466 m Ahg^-1 at 100 mAg^-1 and stable cycling performance with a capacity retention of 90% over 20 0 0 cycles at the 20 Ag^-1. Moreover, Na2V6O16·2.14H2O presents a capable rate ability and a high energy density of 312 Wh kg^-1 at a specific power of 70 Wkg^-1. The superior electrochemical performance is attributed to the large interlayer spacing and outstanding structure stability, which promise the highly reversible intercalation and extraction of zinc ion. The electrochemical kinetics and zinc ion storage mechanism are also investigated. This work demonstrates that nanoscale electrode materials with large interlayer spacing can effectively enhance the electrochemical performance of aqueous ZIBs, which can be extended to other metal ion batteries, such as magnesium ion batteries and aluminum ion batteries. | Fang Hu Di Xie Depeng Zhao Guihong Song Kai Zhu | 2019 | Journal of Energy Chemistry2019，28，11： | 4 |
| 2 | Synthesis of Polyphenylenes through Bergman Cyclization of Enediynes with Long Chain Alkyl Groups显示文摘Several new enediynes with long chain alkyl groups were synthesized through Sonogashira coupling reactions between long chain alkynes and(Z)-1,2-dichloroethene. These enediynes(1) were then subjected to thermal Bergman cyclization in a refluxing diphenyl ether bath under vacuum to obtain conjugated polyphenylenes with the weight-average molecular weights up to 4.9 × 103 g·mol·1. The occurrence of Bergman cyclization was confirmed by 1H-NMR, 13C-NMR, and IR spectroscopic analysis. These polyphenylenes are fully soluble in common organic solvents and exhibit good thermal stability. The optical properties of the polyphenylenes were investigated by UV-Vis absorption and photoluminescence(PL) spectroscopies. A blue emission was observed for all these polyphenylenes. | Shiyuan Sun Luhua Dong Depeng Song Binlei Huang 胡爱国 | 2015 | Chinese Journal of Polymer Science2015，33，1： | 2 |
| 3 | Synthesis of Chiral Polyphenylenes through Bergman Cyclization of Enediynes with Pendant Chiral Amino Ester Groups显示文摘Chiral enediynes with pendant chiral amino ester groups are synthesized through Sonogashira reactions and subjected to thermal triggered Bergman cyclization at elevated temperatures either in bulk or in solvents to produce chiral polyphenylenes. The disappearance of enediyne monomers are evidenced by FTIR and NMR spectroscopies. The formation of polyphenylenes is further confirmed by UV-Vis and MALDI-TOF mass spectroscopies(MS). Isotope pattern analysis of the MS spectra shows that the polymers prepared in solvents are terminated by the solvent molecules, whereas the chain ends of the polymers prepared in bulk consist of considerable amount of unmasked free radicals, which is further confirmed by EPR analysis. Circular dichroism(CD) spectra of the chiral polymers show blue shifts of the Cotton peaks, indicating the occurrence of the cycloaromatization reaction. A new set of peaks mirrored at the horizontal axis show up in the long wavelength range, which are assigned to main chain chirality of the polyphenylenes. | Shiyuan Sun Binlei Huang Fei Li Depeng Song 胡爱国 | 2015 | Chinese Journal of Polymer Science2015，33，5： | 1 |
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