Recently, with our university as the first signatory unit, Prof. Gao Jihui's team, Prof. Sun Fei, the first author of the book entitled "In situ Highly-Contained Nitrogen-doped Carbon Nanospheres Synthesize Enhanced Positive and Negative Electrode Capacitors to Save Active 4.5 V High Energy". The research paper on the density of all-carbon lithium-ion capacitors was published in Nanometer Express, a notable publication in the nanometer field. Lithium-ion capacitors (LICs) combine the features of lithium-ion batteries and supercapacitors and are expected to have good power density, energy density, and cycle life, and have great application prospects.
In order to solve the problems of charge transfer kinetics and life matching between two electrodes, Gao Jihui's team obtained a high concentration of nitrogen-doped carbon nanospheres based on continuous aerosol-assisted spray synthesizing technology and was used as a positive and negative electrode material for lithium ion capacitors. Effectively resolves the electrochemical contradiction between the negative-electrode storage lithium ion (Li+) and the positive electrode storage hexafluorophosphate (PF6-), demonstrating the development potential and application prospects of high-voltage all-carbon symmetrical lithium ion capacitors, and at the same time through the regulation of carbon nanomaterials Chemical environment to design high-performance lithium-ion capacitors provide ideas.
Sun Fei followed Gao Jihui from the second grade to develop carbon-based functional materials and research on the removal of pollutants. During his Ph.D., he went to the University of California, Los Angeles, Professor Lu Yunfeng's research group to jointly cultivate and gradually expand the carbon-based electrochemical storage. Energetic research was selected in July 2017 through the appointment of associate professor Yang Jiaojian of the university. In the past two years, the regulation of the chemical environment of carbon materials, controllable preparation of coal-based carbon materials, and electrochemical energy storage, adsorption of gas molecules, and recycling of pollutants have been carried out. The application of removal has carried out more in-depth research. Related research has been published in "Nano Research," "Advanced Energy Materials," "Material Chemistry," "Science Reports," "Power," "Carbon Materials," and "Chemical Engineering." Hot papers and ESI high cited papers.
Gao Jihui's team has been conducting energy cleansing conversion and related research since 2006. At present, "carbon-based functional materials that integrate energy storage and pollutant control" "enhanced calcium-based/carbon-based materials for solar thermal conversion," "low-order coal steps, high-value conversion and utilization" and "concerns energy conversion and utilization The quantum chemistry and molecular dynamics calculations of the process have been studied in the same direction. In the past 5 years, the National Natural Science Foundation of China has undertaken 8 projects including the National Natural Science Foundation of China, the National Key Project, the Youth Fund Project. Based on the research foundation of the coal-based activated coke pollutant removal, in 2017, the team and Shenhua Group, Shandong University, etc. jointly obtained the national key research and development special support for the "smoke sulfur gas recovery and resource utilization technology"; In 2018, the team, together with Zhejiang University and Huazhong University of Science and Technology, won the national key research and development special support for the “Control Technology of Organic Pollutants Emission from Coal-fired Processesâ€.
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