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| 1 | In situ observation of electrochemical Ostwald ripening during sodium deposition显示文摘Sodium(Na)metal batteries(SMBs)using Na anode are potential“beyond lithium”electrochemical technology for future energy storage applications.However,uncontrollable Na dendrite growth has plagued the application of SMBs.Understanding Na deposition mechanisms,particularly the early stage of Na deposition kinetics,is critical to enable the SMBs.In this context,we conducted in situ observations of the early stage of electrochemical Na deposition.We revealed an important electrochemical Ostwald ripening(EOR)phenomenon which dictated the early stage of Na deposition.Namely,small Na nanocrystals were nucleated randomly,which then grew.During growth,smaller Na nanocrystals were contained by bigger ones via EOR.We observed two types of EOR with one involving only electrochemical reaction driven by electrochemical potential difference between bigger and smaller nanocrystals;while the other being dominated by mass transport governed by surface energy minimization.The results provide new understanding to the Na deposition mechanism,which may be useful for the development of SMB for energy storage applications. | Lin Geng Qiunan Liu Jingzhao Chen Peng Jia Hongjun Ye Jitong Yan Liqiang Zhang Yongfu Tang Jianyu Huang | 2022 | Nano Research2022，15，3： | 0 |
| 2 | Converting intercalation-type cathode in spent lithium-ion batteries into conversion-type cathode显示文摘The widespread applications of lithium-ion batteries(LIBs)generate tons of spent LIBs.Therefore,recycling LIBs is of paramount importance in protecting the environment and saving the resources.Current commercialized LIBs mostly adopt layered oxides such as LiCoO_(2)(LCO)or LiNi_(x)Co_(y)Mn_(1-x-y)O_(2)(NMC)as the cathode materials.Converting the intercalation-type spent oxides into conversion-type cathodes(such as metal fluorides(MFs))offers a valid recycling strategy and provides substantially improved energy densities for LIBs.Herein,two typical Co-based cathodes,LCO and LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NMC622),in spent LIBs were successfully converted to CoF_(2) and(Ni_(x)Co_(y)Mn_(z))F_(2) cathodes by a reduction and fluorination technique.The as converted CoF_(2) and(Ni_(x)Co_(y)Mn_(z))F_(2) delivered cell energy densities of 650 and 700 Wh/kg,respectively.Advanced atomic-level electron microscopy revealed that the used LCO and NMC622 were converted to highly phase pure Co metal and Ni_(0.6)Co_(0.2)Mn_(0.2) alloys in the used graphite-assisted reduction roasting,simultaneously producing the important product of Li_(2)CO_(3) using only environment friendly solvent.Our study provided a versatile strategy to convert the intercalation-type Co-based cathode in the spent LIBs into conversion-type MFs cathodes,which offers a new avenue to recycle the spent LIBs and substantially increase the energy densities of next generation LIBs. | Dingding Zhu Yong Su Jingzhao Chen Xiangze Ou Xuedong Zhang Wen Xie Yuyan Zhou Yunna Guo Qiushi Dai Peng Jia Jitong Yan Lin Geng Baiyu Guo Liqiang Zhang Yongfu Tang Qiao Huang Jianyu Huang | 2024 | Nano Research2024，17，5： | 0 |
| 3 | Effects of flue gas desulfurization gypsum and clover planting on qualities of soil and winter jujube in coastal saline-alkali orchard of north China显示文摘Flue gas desulfurization gypsum and clover planting alleviated the soil salinization stress.Soil pH and total phosphorus affected the bacterial communi-ties.Total phosphorus affected the fungal communities.Flue gas desulfurization gypsum and clover planting improved jujube quality.The coastal area of Shandong Province,characterized by coastal saline tidal soil,is one of the main production areas of winter jujube in China.However,the low soil fertility and poor soil structure in jujube orchard restricted the development of the jujube industry.The objectives of this study were to 1)evaluate the effect of application of flue gas desulfurization(FGD)gypsum and clover planting on soil quality improvement and soil microbial community structure of jujube orchard;2)investigate the effects of two measures on the nutrition and quality of winter jujube.The results showed that FGD gypsum reduced the soil total salt content by 65.6%,and clover planting increased the soil organic matter content by 30.7%,which effectively alleviated the soil salinization stress and improved the soil structure.Soil pH and total phosphorus(TP)were the main determinants influencing bacterial community composition,and TP was the dominant factor of the fungal community composition in the saline-alkali soils.Meanwhile,FGD gypsum addition and clover planting significantly increased the sugar degree and Vc content of winter jujube,thus improved jujube quality,and further contributed to the ecological sustainable development of winter jujube industry. | Qi Shao Xuejing Xia Guihua Li Hui Li Jitong Lin Yanhong Lou Quangang Yang Hui Wang Zhongchen Yang Hong Pan Yuping Zhuge | 2024 | Soil Ecology Letters2024，6，1： | 0 |
| 4 | Eyelid and periorbital ecthyma gangrenosum due to Pseudomonas aeruginosa in an infant显示文摘1|INTRODUCTION Ecthyma gangrenosum(EG)is a rare invasive cutaneous infection primarily caused by Pseudomonas aeruginosa in immunosuppressed patients.It is characterized by a painless necrotic ulceration with a surrounding erythematous halo and is usually associated with Pseudomonas aeruginosa septicemia.EG is extremely rare in the periorbital region,and there have been no other reported infant cases with orbital bone erosion. | Qi Lin Bing Hu Jitong Shi Wei Shi Wenhong Cao Li Li | 2017 | Pediatric Investigation2017，1，1： | 0 |
| 5 | Interface engineering of MXene-based heterostructures for lithiumsulfur batteries显示文摘High energy density and low cost make lithium-sulfur(Li-S)batteries as one of the next generation's promising energy storage systems.However,the following problems need to be solved before commercialization:(i)the shuttling effect and sluggish redox kinetics of lithium polysulfides in sulfur cathode;(ii)the formation of lithium dendrites and the crack of solid electrolyte interphase;(iii)the large volume changes during charge and discharge processes.MXenes,as newly emerging two-dimensional transition metal carbides/nitrides/carbonitrides,have attracted widespread attention due to their abundant active surface terminals,adjustable vacancies,and high electrical conductivity.Designing MXene-based heterogeneous structures is expected to solve the stacking problem induced by hydrogen bonds or Van der Waals force and to provide other charming physiochemical properties.Herein,we generalize the design principles of MXene-based heterostructures and their functions,i.e.,adsorption and catalysis in advanced conversion-based Li-S batteries.Firstly,the physiochemical properties of MXene and MXene-based heterostructures are briefly introduced.Secondly,the catalytic functions of MXene-based heterostructures with the compositional constituents including carbon materials,metal compounds,organic frameworks,polymers,single atoms and special high-entropy MXenes are comprehensively summarized in sulfur cathodes and lithium anodes.Finally,the challenges of MXene-based heterostructure in current Li-S batteries are pointed out and we also provide some enlightenments for future developments in high-energy-density Li-S batteries. | Siyu Wu Xiang Li Yongzheng Zhang Qinghua Guan Jian Wang Chunyin Shen Hongzhen Lin Jitong Wang Yanli Wang Liang Zhan Licheng Ling | 2023 | Nano Research2023，16，7： | 0 |
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