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| 1 | Interface-modulated fabrication of hierarchical yolk-shell Co3O4/C dodecahedrons as stable anodes for lithium and sodium storage显示文摘转变金属氧化物(TMO ) 逐渐地为锂离子电池(解放) 和钠离子电池(亲族) 作为阳极材料从研究人员吸引了注意因为他们的高理论的能力。然而,他们的差的骑车稳定性和晚辈评估能力在 lithiation/sodiation 进程和他们的低内在的电子传导性限制期间源于大卷变化他们的应用程序。解决 TMO 的问题,有从金属器官的框架(MOF ) 导出的复杂结构的基于碳的金属氧化物 composites 为解放和亲族作为有希望的电极材料出现了。在这研究,我们采用了一个灵巧的调制接口的方法综合蛋黄壳基于碳的公司 3 O 4 十二面体源于 ZIF-67 zeolitic imidazolate 框架。这策略在热分解过程期间基于在 ZIF-67 核心和基于碳的壳之间的接口分离。唯一的蛋黄壳结构有效地在 lithiation 或 sodiation 期间提供体积扩大,并且碳矩阵改进电极的电的传导性。作为为解放的阳极,蛋黄壳公司 3 O 4/C 十二面体展出一个高特定的能力和优秀骑车稳定性(1,100 mAh 潦? | Yuzhu Wu Jiashen Meng Qi Li Chaojiang Niu Xuanpeng wang Wei Yang Wei Li Liqiang Mai | 2017 | Nano Research2017,10,7: | 8 |
| 2 | Novel MOF shell-derived surface modification of Li-rich layered oxide cathode for enhanced lithium storage显示文摘Li-rich layered oxide materials have attracted increasing attention because of their high specific capacity(>250 mAh g^(-1)). However, these materials typically suffer from poor cycling stability and low rate performance. Herein, we propose a facile and novel metal-organic-framework(MOF) shell-derived surface modification strategy to construct NiCo nanodots decorated(~5 nm in diameter) carbon-confined Li_(1.2)Mn_(0.54) Ni_(0.13)Co_(0.13)O_2 nanoparticles(LLO@C&NiCo). The MOF shell is firstly formed on the surface of as-prepared Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_2 nanoparticles via low-pressure vapor superassembly and then is in situ converted to the NiCo nanodots decorated carbon shell after subsequent controlled pyrolysis.The obtained LLO@C&NiCo cathode exhibits enhanced cycling and rate capability with a capacity retention of 95% after 100 cycles at 0.4 C and a high capacity of 159 mAh g^(-1) at 5 C, respectively, compared with those of LLO(75% and 105 mAh g^(-1)). The electrochemical impedance spectroscopy and selected area electron diffraction analyses after cycling demonstrate that the thin C&NiCo shell can endow LLO with high electronic conductivity and structural stability, indicating the undesired formation of the spinel phase initiated from the particle surface is efficiently suppressed. Therefore, this presented strategy may open a new avenue on the design of high-performance electrode materials for energy storage. | Zhitong Xiao Jiashen Meng Qi Li Xuanpeng Wang Meng Huang Ziang Liu Chunhua Han Liqiang Mai | 2018 | Science Bulletin2018,63,1: | 8 |
| 3 | Carbon-supported and nanosheet-assembled vanadium oxide microspheres for stable lithium-ion battery anodes显示文摘有高理论的能力的自然地丰富的转变金属氧化物在锂离子电池用作阳极比商业石墨吸引了更多的注意。展出优秀电气化学的性能的锂离子电池电极能高效地被完成经由三维(3D ) 体系结构与传导性的聚合物和碳装饰了。因此,我们开发了 3D 支持碳的非结晶的钒氧化物 microspheres 和水晶的 V 2 经由一个灵巧的 solvothermal 方法的 O 3 microspheres。两件样品与 ultrathin nanosheets 被装配,它由一致地分布式的钒氧化物和碳组成了。形成过程清楚地通过一系列时间依赖者实验被揭示。这些 microspheres 有众多的活跃反应地点,高电子的传导性,和优秀结构的稳定性,它都比另外的锂离子电池阳极的那些远优异。更重要地,在非结晶的 microspheres 以 2,000 mA/g 的高率受到 7,000 个周期以后, 95% 秒周期分泌物能力被保留。水晶的 microspheres 也展出了高率、长寿的表演,以 2,000 mA/g 的率在 9,000 个周期以后由秒周期分泌物能力的 98% 保留证实了。因此,这个灵巧的 solvothermal 方法以及唯一的支持碳、装配 nanosheet 的 microspheres 为合成和使用有重要潜力在,分别地锂离子电池。 | Chaojiang Niu Meng Huang Peiyao Wang Jiashen Meng Xiong Liu Xuanpeng Wang Kangning Zhao Yang Yu Yuzhu Wu Chao Lin Liqiang Mai | 2016 | Nano Research2016,9,1: | 6 |
| 4 | FeSe2 clusters with excellent cyclability and rate capabilityfor sodium-ion batteries显示文摘Sodium-ion batteries (SIBs) have great promise for sustainable and economicalenergy-storage applications. Nevertheless, it is a major challenge to developanode materials with high capacity, high rate capability, and excellent cyclingstability for them. In this study, FeSe2 clusters consisting of nanorods weresynthesized by a facile hydrothermal method, and their sodium-storage propertieswere investigated with different electrolytes. The FeSe2 clusters delivered highelectrochemical performance with an ether-based electrolyte in a voltage rangeof 0.5-2.9 V. A high discharge capacity of 515 mAh.g-1 was obtained after 400 cyclesat 1 A.g-1, with a high initial columbic efficiency of 97.4%. Even at an ultrahighrate of 35 A-g-1 a specific capacity of 128 mAh.g-1 was achieved. Using calculations,we revealed that the pseudocapacitance significantly contributed to the sodium-ionstorage, especially at high current rates, leading to a high rate capability. Thehigh comprehensive performance of the FeSe2 clusters makes them a promisinganode material for SIBs. | Xiujuan Wei Chunjuan Tang Qinyou An Mengyu Yan Xuanpeng Wang Ping Hu Xinyin Cai Liqiang Mai | 2017 | Nano Research2017,10,9: | 3 |
| 5 | Interface-modulated approach toward multilevel metal oxide nanotubes for lithium-ion batteries and oxygen reduction reaction显示文摘有 multilevel 内部的空结构具有为象催化作用,察觉到的化学药品,药交货,和精力存储那样的潜在的应用的大兴趣的金属氧化物。然而, multilevel nanotubes 的控制合成仍然是大挑战。这里,我们通过控制的热处理跟随的 electrospinning 与悦耳的内部结构向复杂金属氧化物 multilevel nanotubes 的合成开发一条灵巧的调制接口的途径。这万用的策略能有效地被使用制作 wire-in-tube 和各种各样的金属氧化物的 tube-in-tube nanotubes。这些 multilevel nanotubes 拥有一个大特定的表面区域,快集体运输,好紧张住所,和高收拾行李密度,它为锂离子电池(解放) 和氧减小反应(ORR ) 是有益的。明确地,可缩小的 CoMn 2 O 4 tube-in-tube nanotubes 作为锂离子电池阳极交付 ~ 的一个高分泌物能力在二组商业烈酒之间的 565 mAhon。电子鼻子基于快 GC 提供有效、快速的芳香侧面比较的可能性(分析的全部的时间是 93 ? s ) 选择白酒。另外,鉴定并且试验这些饮料用的不稳定的部分的选择混合物的数量的 semiqualitative 比较在不到 60 的病人 HS-SPME/GCantly 更长 ? 年在 60 年与那些相比变老(33.8? | Jiashen Meng Chaojiang Niu Xiong Liu Ziang Liu Hongliang Chen Xuanpeng Wang Jiantao Li Wei Chen Xuefeng Guo Liqiang Mai | 2016 | Nano Research2016,9,8: | 2 |
| 6 | Ammonium Ion and Structural Water Co-Assisted Zn^(2+) Intercalation/De-Intercalation in NH_(4)V_(4)O_(10)∙0.28H_(2)O显示文摘Main observation and conclusion The cathode material plays a crucial role in the performances of aqueous zinc-ion batteries(ZIBs).Herein,we report an ammonium vanadate(NH_(4)V_(4)O_(10)∙0.28H_(2)O,NHVO)aqueous ZIB cathode material.The obtained NHVO microflowers manifest high discharge capacity(410 mA·h∙g^(-1) at 0.2 A∙g^(-1)). | Ting Zhu Bo Mai Ping Hu Ziang Liu Congcong Cai Xuanpeng Wang Liang Zhou | 2021 | Chinese Journal of Chemistry2021,39,7: | 2 |
| 7 | Effect of oxide scale on corrosion behavior of HP-13Cr stainless steel during well completion process显示文摘The well completion process in oil and gas industry,aiming to build effective exploitation,is divided into acidizing and formation water production process.Oxide scale(OS)formed on the inner wall of the HP-13Cr stainless steel tubes during the hot extrusion process changes the surface roughness.The effects of OS on the corrosion of HP-13Cr stainless steel during well completion process were studied by corrosion measurement,spectra analysis,microscopic observation and numerical simulation.The results indicate that the OS make no change of phase distribution and element composition of corrosion scale,while the increasing OS roughness is the dominant factor for accelerating corrosion rate during the well completion process.In acidizing process,the greater surface roughness OS of HP-13Cr stainless steel increases the corrosion rate obviously due to a larger interfacial area in contact with the aggressive environment.During subsequent formation water production process,the turbulence eddy,formed at locations characterized with greater surface roughness OS,can deteriorate the corrosion scale and accelerate the mass transfer of the corrosive species,resulting in more serious corrosion. | Wenlong Qi Jidong Wang Xuanpeng Li Yanan Cui Yang Zhao Junfeng Xie Guanxin Zeng Qiuying Gao Tao Zhang Fuhui Wang | 2021 | Journal of Materials Science & Technology2021,,5: | 1 |
| 8 | Fluid-inspired field representation for risk assessment in road scenes显示文摘Prediction of the likely evolution of traffic scenes is a challenging task because of high uncertainties from sensing technology and the dynamic environment.It leads to failure of motion planning for intelligent agents like autonomous vehicles.In this paper,we propose a fluid-inspired model to estimate collision risk in road scenes.Multi-object states are detected and tracked,and then a stable fluid model is adopted to construct the risk field.Objects’state spaces are used as the boundary conditions in the simulation of advection and diffusion processes.We have evaluated our approach on the public KITTI dataset;our model can provide predictions in the cases of misdetection and tracking error caused by occlusion.It proves a promising approach for collision risk assessment in road scenes. | Xuanpeng Li Lifeng Zhu Qifan Xue Dong Wang Yongjie Jessica Zhang | 2020 | Computational Visual Media2020,6,4: | 0 |