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| 1 | In-situ self-templating synthesis of 3D hierarchical porous carbonsfrom oxygen-bridged porous organic polymers for highperformance supercapacitors显示文摘It is a big challenge to well control the porous structure of carbon materials for supercapacitor application.Herein,a simple in-situ self-templating strategy is developed to prepare three-dimensional(3D)hierarchical porous carbons with good combination of micro and meso-porous architecture derived from a new oxygen-bridged porous organic polymer(OPOP).The OPOP is produced by the condensation polymerization of cyanuric chloride and hydroquinone in NaOH ethanol solution and NaCl is in-situ formed as by-product that will serve as template to construct an interconnected 3D hierarchical porous architecture upon carbonization.The large interface pore architecture,and rich doping of N and O heteroatoms effectively promote the electrolyte accessibility and electronic conductivity,and provide abundant active sites for energy storage.Consequently,the supercapacitors based on the optimized OPOP-800 sample display an energy density of 8.44 and 27.28 Wh·kg^(−1)in 6.0 M KOH and 1.0 M Na2SO4 electrolytes,respectively.The capacitance retention is more than 94%after 10,000 cycles.Furthermore,density functional theory(DFT)calculations have been employed to unveil the charge storage mechanism in the OPOP-800.The results presented in this job are inspiring in finely tuning the porous structure to optimize the supercapacitive performance of carbon materials. | Qi Xiong Bei Liu Yijiang Liu Pu Wang Hua Cheng Huaming Li Zhouguang Lu Mei Yang | 2022 | Nano Research2022，15，9： | 1 |
| 2 | On the occasion of the 80th birthday of Professor Yitai Qian:Celebrating 60 years of innovation in solid-state chemistry and nanoscience显示文摘Professor Yitai Qian,a pioneer in nanomaterials,an academician of the Chinese Academy of Sciences(CAS)and a professor at the University of Science and Technology of China(USTC),has committed his entire career to the development of solid-state chemistry and nanoscience in China.Prof.Qian is recognized for his pioneering contributions to the development of emerging high-Tc superconducting materials,and the development of solvothermal methodology for the synthesis of a wide range of low-dimensional nanomaterials.Beyond the landmarking scientific advancements he has made in his own trailblazing research,Prof.Qian has directly mentored more than 100 excellent PhD students,in addition to many more master and undergraduate students,many of them have gone on to become the leading scientists in China and worldwide in the field of nanoscience and beyond.Without exaggeration,the academic offspring and extended family of Prof.Qian have contributed a substantial portion of nanoscience and nanotechnology development over the past several decades. | Shu-Hong Yu Xiangfeng Duan Yi Xie Peidong Yang Yadong Li | 2021 | Nano Research2021，14，10： | 0 |
| 3 | MOF-derived porous graphitic carbon with optimized plateau capacity and rate capability for high performance lithium-ion capacitors显示文摘The development of anode materials with high rate capability and long charge-discharge plateau is the key to improve per-formance of lithium-ion capacitors(LICs).Herein,the porous graphitic carbon(PGC-1300)derived from a new triply interpenetrated co-balt metal-organic framework(Co-MOF)was prepared through the facile and robust carbonization at 1300°C and washing by HCl solu-tion.The as-prepared PGC-1300 featured an optimized graphitization degree and porous framework,which not only contributes to high plateau capacity(105.0 mAh·g^(−1)below 0.2 V at 0.05 A·g^(−1)),but also supplies more convenient pathways for ions and increases the rate capability(128.5 mAh·g^(−1)at 3.2 A·g^(−1)).According to the kinetics analyses,it can be found that diffusion regulated surface induced capa-citive process and Li-ions intercalation process are coexisted for lithium-ion storage.Additionally,LIC PGC-1300//AC constructed with pre-lithiated PGC-1300 anode and activated carbon(AC)cathode exhibited an increased energy density of 102.8 Wh·kg^(−1),a power dens-ity of 6017.1 W·kg^(−1),together with the excellent cyclic stability(91.6%retention after 10000 cycles at 1.0 A·g^(−1)). | Ge Chu Chaohui Wang Zhewei Yang Lin Qin Xin Fan | 2024 | International Journal of Minerals,Metallurgy and Materials2024，31，2： | 0 |
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