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| 1 | Experimental and Numerical Study of Gas Holdup in Surface Aerated Stirred Tanks显示文摘 | Sun Haiyan Mao Zaisha Yu Gengzhi | 2006 | Chem Eng Sci2006，61，12： | 1 |
| 2 | Recent Advances in Molybdenum-Based Materials for Lithium-Sulfur Batteries显示文摘Lithium-sulfur(Li-S)batteries as power supply systems possessing a theoretical energy density of as high as 2600 Wh kg−1 are considered promising alternatives toward the currently used lithium-ion batteries(LIBs).However,the insulation characteristic and huge volume change of sulfur,the generation of dissolvable lithium polysulfides(LiPSs)during charge/discharge,and the uncontrollable dendrite formation of Li metal anodes render Li-S batteries serious cycling issues with rapid capacity decay.To address these challenges,extensive efforts are devoted to designing cathode/anode hosts and/or modifying separators by incorporating functional materials with the features of improved conductivity,lithiophilic,physical/chemical capture ability toward LiPSs,and/or efficient catalytic conversion of LiPSs.Among all candidates,molybdenum-based(Mo-based)materials are highly preferred for their tunable crystal structure,adjustable composition,variable valence of Mo centers,and strong interactions with soluble LiPSs.Herein,the latest advances in design and application of Mo-based materials for Li-S batteries are comprehensively reviewed,covering molybdenum oxides,molybdenum dichalcogenides,molybdenum nitrides,molybdenum carbides,molybdenum phosphides,and molybdenum metal.In the end,the existing challenges in this research field are elaborately discussed. | Henghan Dai Lumin Wang Yue Zhao Jialu Xue Ruicong Zhou Chenyang Yu Jianing An Jinyuan Zhou Qiang Chen Gengzhi Sun Wei Huang | 2021 | Research2021，，1： | 1 |
| 3 | Experimental and numerical study of gas hold-up in surface aerated stirred tanks显示文摘 | SUN HAIYAN MAO ZAISHA YU GENGZHI | 2006 | Chemical Engineering Science2006，61，12： | 1 |
| 4 | Mesh-like vertical structures enable both high areal capacity and excellent rate capability显示文摘In order to balance electrochemical kinetics with loading level for achieving efficient energy storage with high areal capacity and good rate capability simultaneously for wearable electronics,herein,2 D meshlike vertical structures(NiCo_2 S_4@Ni(OH)_2) with a high mass loading of 2.17 mg cm^(-2) and combined merits of both 1 D nanowires and 2 D nanosheets are designed for fabricating flexible hybrid supercapacitors.Particularly,the seamlessly interconnected NiCo_2 S_4 core not only provides high capacity of 287.5 μAh cm^(-2) but also functions as conductive skeleton for fast electron transport;Ni(OH)_2 sheath occupying the voids in NiCo_2 S_4 meshes contributes extra capacity of 248.4 μAh cm^(-2);the holey features guarantee rapid ion diffusion along and across NiCO_2 S_4@Ni(OH)_2 meshes.The resultant flexible electrode exhibits a high areal capacity of 535.9 μAh cm^(-2)(246.9 mAh g^(-1)) at 3 mA cm^(-2) and outstanding rate performance with 84.7% retention at 30 mA cm^(-2),suggesting efficient utilization of both NiCo_2 S_4 and Ni(OH)_2 with specific capacities approaching to their theoretical values.The flexible solid-state hybrid device based on NiCo_2 S_4@Ni(OH)_2 cathode and Fe_2 O_3 anode delivers a high energy density of 315 μWh cm^(-2) at the power density of 2.14 mW cm^(-2) with excellent electrochemical cycling stability. | Ruyi Chen Jialu Xue Yujiao Gong Chenyang Yu Zengyu Hui Hai Xu Yue Sun Xi Zhao Jianing An Jinyuan Zhou Qiang Chen Gengzhi Sun Wei Huang | 2021 | Journal of Energy Chemistry2021，30，2： | 1 |
| 5 | A volume-amending method to improve mass conservation of level set approach for incompressible two-phase flows显示文摘A volume-amending method is developed both to keep the level set function as an algebraic distance function and to preserve the bubble mass in a level set approach for incompressible two-phase flows with the significantly deformed free interface. After the traditional reinitialization procedure, a vol-ume-amending method is added for correcting the position of the interface according to mass loss/gain error until the mass error falls in the allowable range designated in advance. The level set approach with this volume-amending method incorporated has been validated by three test cases: the motion of a single axisymmetrical bubble or drop in liquid, the motion of a two-dimensional water drop falling through the air into a water pool, and the interactional motion of two buoyancy-driven three- dimensional deformable bubbles. The computational results with this volume-amending method in-corporated are in good agreement with the reported experimental data and the mass is well preserved in all cases. | LI XiangYang WANG YueFa YU GengZhi YANG Chao MAO ZaiSha | 2008 | Science China Chemistry2008，51，11： | 1 |
| 6 | The Jahn-Teller Effect for Amorphization of Molybdenum Trioxide towards High-Performance Fiber Supercapacitor显示文摘Amorphous pseudocapacitive nanomaterials are highly desired in energy storage applications for their disordered crystal structures,fast electrochemical dynamics,and outstanding cyclic stability,yet hardly achievable using the state-of-the-art synthetic strategies.Herein,for the first time,high capacitive fiber electrodes embedded with nanosized amorphous molybdenum trioxide(A-MoO_(3)-x)featuring an average particle diameter of~20 nm and rich oxygen vacancies are obtained via a top-down method usingα-MoO_(3)bulk belts as the precursors.The Jahn-Teller distortion in MoO_(6)octahedra due to the doubly degenerate ground state of Mo5+,which can be continuously strengthened by oxygen vacancies,triggers the phase transformation ofα-MoO_(3)bulk belts(up to 30μm long and 500 nm wide).The optimized fibrous electrode exhibits among the highest volumetric performance with a specific capacitance(CV)of 921.5 F cm^(-3)under 0.3 A cm^(-3),endowing the fiber-based weaveable supercapacitor superior CV and EV(energy density)of 107.0 F cm^(-3)and 9.5 mWh cm^(-3),respectively,together with excellent cyclic stability,mechanical robustness,and rate capability.This work demonstrates a promising strategy for synthesizing nanosized amorphous materials in a scalable,cost-effective,and controllable manner. | Chenyang Yu Hai Xu Yujiao Gong Ruyi Chen Zengyu Hui Xi Zhao Yue Sun Qiang Chen Jinyuan Zhou Wenxin Ji Gengzhi Sun Wei Huang | 2021 | Research2021，，1： | 0 |
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