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| 1 | Vertical crosslinking MoS_2/three-dimensional graphene composite towards high performance supercapacitor显示文摘Molybdenum disulfide(MoS_2) has been stimulated in extensive researches due to its layered structure and the potential as an electrochemical energy material. However, the effects on electrochemical performance of concentration of MoS_2 are rarely mentioned. In this paper, the effects of different concentrated layered MoS_2 on the morphology and electrochemical properties of the composite of MoS_2 and three-dimensional graphene(MoS_2/3DG) were discussed. The results show that layered MoS_2 was successfully compounded to 3DG and formed a vertical crosslinking structure. It can be observed that MoS_2 nanosheets are vertically loaded on the inner and outer surface of graphee when the concentration of MoS_2 is 0.20 mg/L. The specific capacitance of composite(MoS_2(0.20 mg/L)/3 DG)reaches 2182.33 mF/cm^2 at the current density of 1 mA/cm^2, and the specific capacitance remains 116.83% after 5000 cycles. When the current density increased 100 times(from 1 mA/cm^2 to 100 mA/cm^2), the specific capacitance retains 78.9%. Meanwhile, the hybrid energy storage devises can deliver an energy density of 130.34 Wh/m^2. The superior electrochemical properties are attributed to the synergistic effect of MoS_2 and 3DG. Therefore, the material has a potential application on supercapacitor electrode material. | Chengjie Han Zhen Tian Huanglin Dou Xiaomin Wang Xiaowei Yang | 2018 | Chinese Chemical Letters2018，29，4： | 2 |
| 2 | Rational design of robust nano-Si/graphite nanocomposites anodes with strong interfacial adhesion for high-performance lithium-ion batteries显示文摘The nano-Si/graphite nanocomposites are the promising anodes candidates for high-energy lithium-ion batteries because of their high theoretical capacities and low volume variations.However,the nano-Si has a severe tendency to separate from the graphite substrate due to the inherently weak bonding between them,thus leading to the deteriorated cycling performance and low Coulombic efficiency.Herein,we design a robust nano-Si/graphite nanocomposite structure with strong interfacial adhesion caused by the Si—Ti and Ti—C covalent bonds.The abundant Si—Ti and Ti—C bonds formed between nano-Si and graphite greatly enhance the interfacial adhesion force,resulting in the highly stabilized and integrated electrode structure during battery cycling.Consequently,the as-obtained nano-Si/graphite anodes deliver a high capacity retention of 90.0% after 420 cycles at 0.5 C with an average Coulombic efficiency of 99.5%;moreover,a high initial Coulombic efficiency of 90.2% is achieved.Significantly,this work provides a novel strategy to address the poor interfacial adhesion between nano-Si and graphite,which can be applied to other nano-Si based composites anodes. | Yuantao Yan Xiaoli Zhao Huanglin Dou Jingjiang Wei Wanyu Zhao Zhihua Sun Xiaowei Yang | 2021 | Chinese Chemical Letters2021，32，2： | 1 |
| 3 | Processing micrometer-sized particles in crumpled graphene network for freestanding membrane enabled by freeze casting显示文摘Graphene oxide(GO)is widely used in the construction and application of various 2 D membrane-based materials due to its unique colloidal structure.Herein,we demonstrate that micrometer-sized particles can make up freestanding membranes enabled by the extraordinary amphiphilic and polymer-like properties of graphene oxide through freeze casting.The 2 D macromolecule,GO could well wrap the particles for better uniformity and stability in either dispersion or membrane.Importantly,freeze casting plays an important role in avoiding the severe aggregation of micrometer-sized particles in the solventremoving process.After reduction,the membrane exhibits good electrical conductivity while maintaining its integral structure,which can be directly used as a freestanding binder-free electrode.This work provides a universal approach to fabricate freestanding membranes with various micrometersized materials for energy storage. | Jing Cao Xiaoli Zhao Jiahe Wang Huanglin Dou Congcong Liu Xiaojun Yan Yuantao Yan Min Guo Wanyu Zhao Xiaowei Yang | 2020 | Chinese Chemical Letters2020，31，1： | 1 |
| 4 | Additional ent‐Kaurane Diterpenoids from Rubus corchorifolius L. f.显示文摘 | Xue‐XiangChen Shuang‐DeZhou Yang‐WenOu Su‐YaoXiao Wang‐HuangLin YongCao MinZhang Li‐ChaoZhao Long‐FangLi | 2010 | HCA2010，，1： | 1 |
| 5 | Engineering Sodium Metal Anode with Sodiophilic Bismuthide Penetration for Dendrite-Free and High-Rate Sodium-Ion Battery显示文摘Sodium(Na)metal batteries with a high volumetric energy density that can be operated at high rates are highly desirable.However,an uneven Na-ion migration in bulk Na anodes leads to localized deposition/dissolution of sodium during high-rate plating/stripping behaviors,followed by severe dendrite growth and loose stacking.Herein,we engineer the Na hybrid anode with sodiophilic Na_(3)Bi-penetration to develop the abundant phase-boundary ionic transport channels.Compared to intrinsic Na,the reduced adsorption energy and ion-diffusion barrier on Na_(3)Bi ensure even Na^(+)nucleation and rapid Na^(+)migration within the hybrid electrode,leading to uniform deposition and dissolution at high current densities.Furthermore,the bismuthide enables compact Na deposition within the sodiophilic framework during cycling,thus favoring a high volumetric capacity.Consequently,the obtained anode was endowed with a high current density(up to 5 mA∙cm^(−2)),high areal capacity(up to 5 mA∙h∙cm^(−2)),and long-term cycling stability(up to 2800 h at 2 mA∙cm^(−2)). | Wanyu Zhao Min Guo Zhijun Zuo Xiaoli Zhao Huanglin Dou Yijie Zhang Shiying Li Zichen Wu Yayun Shi Zifeng Ma Xiaowei Yang | 2022 | Engineering2022，8，4： | 0 |
| 6 | Structure and strain tunings of topological anomalous Hall effect in cubic noncollinear antiferromagnet Mn3Pt epitaxial films显示文摘Antiferromagnets(AFMs)with chiral noncollinear spin structure have attracted great attention in recent years.However,the existing research has mainly focused on hexagonal chiral AFMs,such as Mn3Sn,Mn3Ga,Mn3Ge with low crystalline symmetry.Here,we present our systematical study for the face-centered cubic noncollinear antiferromagnetic Mn3Pt.By varying the alloy composition(x),we have successfully fabricated antiferromagnetic Mn1-xPtx epitaxial films on MgO substrates and have observed a crystalline structure transition from L10 MnPt to L12 Mn3Pt.The Mn3Pt exhibits a large anomalous Hall effect,which is in the same order of magnitude as those of ferromagnetic materials.Moreover,a large thickness-evolved strain effect is revealed in Mn3Pt films by X-ray diffraction(XRD)analysis based on the Scherrer method.Our work explores Mn3Pt as a promising candidate for topological antiferromagnetic spintronics. | Ning An Meng Tang Shuai Hu HuangLin Yang WeiJia Fan ShiMing Zhou XuePeng Qiu | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，9： | 0 |
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