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| 1 | Observation of New Isotope^(131)Ag via the Two-Step Fragmentation Technique显示文摘We report on the first observation of the neutron-rich nucleus^(131)Ag.This isotope was produced via fragmentation reactions of intense secondary radioactive ion beams,including 134,135Sn.The secondary beams were produced from induced fission reactions from a stable 238U beam at 345 MeV/nucleon.Secondary reaction residues were selected by the ZeroDegree spectrometer and identified by measuring their magnetic rigidity,time of flight,energy loss,and total kinetic energy. | 王赫 N.Aoi S.Takeuchi M.Matsushita P.Doornenbal T.Motobayashi D.Steppenbeck K.Yoneda K.Kobayashi J.Lee 刘红娜 Y.Kondo R.Yokoyama H.Sakurai 叶沿林 | 2013 | Chinese Physics Letters2013，30，4： | 0 |
| 2 | 丰中子核^(63,65,67)Mn的在束γ谱学研究显示文摘利用放射性束68Fe轰击液氢靶引起的敲出反应,研究了极端丰中子核^(63,65,67)Mn的激发态,指认了它们的自旋宇称,建立了这三个原子核的能级纲图。纲图包含11/2^(-)、9/2^(-)和7/2^(-)三个激发态以及5/2^(-)_(g.s.)基态,它们由三条ΔI=1的γ跃迁连接。这种能级结构与K=5/2时强耦合转动带的特征一致。使用改进的LNPS有效相互作用(LNPSm)的大规模壳模型计算能很好地重现观测到的能级。计算表明,^(65,67)Mn的低位激发态都主要包含处于4p-4h的中子组态和1p-1h的质子组态。基于实验结果发现,在吸积中子星壳中,与质量数A=63相关的Urea中微子冷却效果比预期的要强很多,而A=65,67的冷却效果比预期的更弱。 | 卢洪洋 刘小雨 丁兵 刘忠 P.Doornenbal A.Obertelli S.MLenzi P.M.Walker L.X.Chung B.D.Linh G.Authelet H.Baba D.Calvet F.Chateau A.Corsi A.Delbart J.M.Gheller A.Gillibert T.Isobe V.Lapoux M.Matsushita S.Momiyama T.Motobayashi M.Niikura F.Nowacki H.Otsu C.Peron A.Peyaud E.C.Pollacco J.Y.Rousse H.Sakurai M.Sasano Y.Shiga S.Takeuchi R.Taniuchi T.Uesaka H.Wang K.Yoneda | 2020 | 原子核物理评论2020，37，3： | 0 |
| 3 | Understanding Interfacial Chemistry Interactions in Energy-Dense Lithium-Ion Electrodes显示文摘For the past two decades,conversion and alloying-type materials have been heralded as the natural heir to commercially available graphite anodes due to their ability to deliver high gravimetric/volumetric power.Commercialization of batteries with these high-energy-density active materials could impact a variety of sectors including electric vehicles,grid storage,and consumer electronics and contribute toward an ever-increasing electrified world.However,the various failure mechanisms from inherent interfacial chemical instabilities associated with these materials make them unable to be merely substituted into currently available electrode fabrication and formulation processing techniques.As a result,realizing the high theoretical capacity and achieving commercial viability of these materials will rely on the careful manipulation of interfacial chemical interactions that dictate and control various kinetic and transport processes across multiple scales of the composite electrode.This has led to a plethora of research that has focused on systematically understanding properties of the different electrode components and designing carefully constructed electrode formulations to achieve composite electrodes with increased chemical stability,enhanced local mixed conductivities,or improved mechanical resilience.This Account relates recent progress in the understanding of synergetic opportunities for energy-dense,resilient composite anodes.By understanding the interplay between components of the composite electrode,we can construct enhanced well-integrated electrodes with performance metrics that surpass empirically derived architectures.Due to the increased complexity of high-volume-expanding electrodes,performance is more than the cumulative contributions of the individual components,and therefore energy and compatibility matching are important for robust electrochemical performance across cycling,rate capability,facile lithium-ion transport,and stability.In this Account,synergistic opportunities are framed from a chemistry perspective as we focus on examining interfacial interactions that span all electrode components:the active material surface,conductive agent linkage,and polymeric binder mesoscale.Control of key interfacial chemistry can be achieved through chemical functionalization,physical interactions,and other types of linkages and thereby lead to utilization of high-energy-density active materials in robust composite electrodes.Leveraging several techniques such as the Hanson solubility parameter(HSP)analysis,X-ray photoelectron spectroscopy(XPS),and Fourier transform infrared(FT-IR)spectroscopy among others can be important in gaining mechanistic insights for key kinetic and transport phenomena that occur across multiple interface length scales.Importantly,understanding the underlying effect of interfacial manipulation on the mechanisms of transport and kinetic processes leads to the development of experimental toolsets and design frameworks applicable to not just current material classes but to forward-looking chemistries that can be applied to next-generation battery materials.Herein,we discuss interfacial control of the composite electrodes via chemical modification techniques toward the creation of reliable,long-lasting,energy-dense lithium-ion batteries. | Donghee Gueon Miguel A.Gonzalez Kenneth J.Takeuchi Esther S.Takeuchi Amy C.Marschilok Elsa Reichmanis | 2023 | Accounts of Materials Research2023，4，2： | 0 |
| 4 | Thick Electrode Design for Facile Electron and Ion Transport:Architectures,Advanced Characterization,and Modeling显示文摘CONSPECTUS:The demand for lithium ion batteries continues to expand for powering applications such as portable electronics,grid-scale energy storage,and electric vehicles.As the application requirements advance,the innovation of lithium ion batteries toward higher energy density and power output is required.Along with the investigation of new materials,an important strategy for increasing battery energy content is to design electrodes with high areal loading to minimize the fraction of nonactive materials such as current collectors,separators,and packaging components,resulting in significant gains in energy content and the reduction of the system-level cost.However,the adoption of thick high areal loading electrodes has been impeded by sluggish charge transport and mechanical instability.With conventional slurry cast electrodes,battery function significantly deteriorates with increases in electrode thickness due to high cell polarization and the incomplete utilization of active materials.Thus,a consideration of approaches that facilitate an understanding and eventual adoption of high-loading electrodes is warranted to enable the deliberate advancement of next-generation batteries. | David J.Arnot Karthik S.Mayilvahanan Zeyu Hui Kenneth J.Takeuchi Amy C.Marschilok David C.Bock Lei Wang Alan C.West Esther S.Takeuchi | 2022 | Accounts of Materials Research2022，3，4： | 0 |
| 5 | Cell-Based Biohybrid Sensor Device for Chemical Source Direction Estimation显示文摘This paper describes a method to estimate the direction from which the signal molecule reaches the sensor by using living cells.In this context,biohybrid sensors that utilize a sophisticated sensing system of cells can potentially offer high levels of chemicaldetection sensitivity and selectivity.However,biohybrid-sensor-based chemical-source-direction estimation has not received research attention because the cellular response to chemicals has not been examined in the context of directional information.In our approach,we fabricated a device that can limit the interface between the cell-laden hydrogel and the chemical solution of interest to enhance the time difference over which the chemical solution reaches the cells.Chemical detection by cells that express specific receptors is reflected as the fluorescence of the calcium indicator within the cells.Our device has eight chambers that each house 3D cell-laden collagen hydrogels facing circularly outward.The device also works as a cover to prevent chemicals from permeating the hydrogel from above.In our study,by observing the time course of the fluorescence emission of each chamber,we were able to successfully estimate the chemical-source direction within an error range of 7-13°.Our results suggest that a combination of microstructure devices embedded with living cells can be used to exploit cell functionalities to yield chemical-source directional information. | H.Oda K.Kihara Y.Morimoto S.Takeuchi | 2021 | Cyborg and Bionic Systems2021，，1： | 0 |
| 6 | PZT FILM GENERATOR DRIVEN BY ULTRASONIC WAVE显示文摘Energy harvesting was demonstrated in hydrothermal PZT nanocrystal films driven by ultra-sound.With high temperature sintering and solution infiltration,PZT films with nanograin sizewas found to exhibit bulk-like properties such as large remnant polarization of 42μC/cm^(2).Withthe bulk-like properties,a packaged PZT film device was demonstrated to be capable of convertingmechanical energy carried by the ultrasonic wave into electrical energy in a reliable and efficient way.The result suggests an alternative potential solution for energy harvesting application. | QIFA ZHOU KWOK HO LAM BENPENG ZHU XIABING ZHANG K.KIRK SHUNG TONGQING YANG S.TAKEUCHI | 2012 | Journal of Advanced Dielectrics2012，2，3： | 0 |
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