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您的检索式：作者名="Ruozhu Feng"
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| 1 | Anodic Cyclizations, Seven-Membered Rings, and the Choice of Radical Cation vs.Radical Pathways显示文摘While many steps in an oxidative cyclization reaction can be important,it is the cyclization step itself that plays the central role.If this step does not proceed well,then optimization of the rest of the sequence is futile.We report here that the key to the cyclization is channeling the reaction down the correct pathway.Some reactions require the use of a radical pathway and some require the use of a radical cation pathway.An example of each is provided along with a strategy for accessing both pathways using a common intermediate. | Robert J.Perkins Ruozhu Feng Qingquan Lu Kevin D.Moeller | 2019 | Chinese Journal of Chemistry2019，37，7： | 0 |
| 2 | Crosslinked Polyethyleneimine Gel Polymer Interface to Improve Cycling Stability of RFBs显示文摘Redox flow batteries are considered a promising technology for grid energy storage.However,capacity decay caused by crossover of active materials is a universal challenge for many flow battery systems,which are based on various chemistries.In this paper,using the vanadium redox flow battery as an example,we demonstrate a new gel polymer interface(GPI)consisting of crosslinked polyethyleneimine with a large amount of amino and carboxylic acid groups introduced between the positive electrode and the membrane.The GPI functions as a key component to prevent vanadium ions from crossing the membrane,thus supporting stable long-term cycling.Cyclic voltammetry(CV)and electrochemical impedance spectroscopy(EIS)measurements were conducted to investigate the effect of GPI on the electrochemical properties of graphitic carbon electrodes(GCFs)and redox reaction of catholyte.X-ray photoelectron spectroscopy(XPS)and ^(1)H nuclear magnetic resonance(NMR)spectra demonstrated that the crosslinked GPI is chemically stable for 100 cycles without dissolution of polymers and swelling in the strong acidic electrolytes.Results from inductively coupled plasma mass spectrometry(ICP-MS),Fourier-transform infrared(FTIR)spectroscopy,and energy-dispersive X-ray(EDX)spectroscopy proved that the GPI is effective in maintaining the concentration of vanadium species in their respective half-cells,resulting in improved cycling stability because of it prevents active species from crossing the membrane and stabilizes the oxidation states of active species. | Hyung-Seok Lim Sujong Chae Litao Yan Guosheng Li Ruozhu Feng Yongsoon Shin Zimin Nie Bhuvaneswari Modachur Sivakumar Xin Zhang Yangang Liang David Jonathan Bazak Vaithiyalingam Shutthanandan Vijayakumar Murugesan Soowhan Kim Wei Wang | 2022 | Energy Material Advances2022，，1： | 0 |
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