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Recent progress of in-situ characterization of LiNi_(1−x−y)Co_(x)Mn_(y)O_(2) cathodes for lithium metal batteries: A mini review

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Nano Research 2024年第3期17卷 1384-1401页

作者： Huanzhu Lv Xiaoqi Zhu jun mei Yuanhua Xia Bin Wang Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengdu 611731China Chengdu Development Center of Science and Technology China Academy of Engineering PhysicsChengdu 610200China Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics(CAEP)Mianyang 621999China

In the context of the gradual popularity of electric vehicles(EVs),the development of lithium battery systems with high energy density and power density is regarded as the foremost way to improve the range of EVs.LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)cathodes have been the focus of researchers due to their high energy density,excellent power performance,and low-temperature resistance.However,the elaboration of the decay mechanism of NCM cathode based on lithium metal batteries(LMBs)is still being restricted to the primary level.In the past decades,the development and application of advanced in-situ characterization tools have facilitated researchers'understanding of the internal operation mechanism of batteries during charging and discharging.In this minireview,the latest progress of in-situ observation of the NCM cathode by X-ray diffraction(XRD),fourier transform infrared(FT-IR)spectroscopy,Raman spectroscopy,atomic force microscopy(AFM),transmission electron microscope(TEM),optical microscope,and other characterization tools is summarized.The mechanisms of structural degradation,cathode-electrolyte interfaces(CEIs)composition,and dynamic changes of NCM,electrolyte breakdown,and gas production are elaborated.Finally,based on the existing research progress,the opportunities and challenges for future in-situ characterization technology in the study of the mechanism of LMBs are discussed in depth.Therefore,the purpose of this minireview is to summarize recent work that focuses on the outstanding application of in-situ characterization techniques in the mechanistic study of LMBs,and pointing the way to the future development of high energy density and power density LMBs systems.

关键词： lithium metal batteries(LMBs) In-situ characterization LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)

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Effects ofβ-1,3-glucan and ascorbic acid on the nutritional-immune response and antioxidant signaling pathways of live tiger grouper during simulated transport

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Aquaculture and Fisheries 2024年第2期9卷 265-272页

作者： Bo Wu Zhenkun Xu Jie Cao Qi Wang jun mei Jing Xie College of Food Science and Technology Shanghai Ocean UniversityShanghai201306China National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean UniversityShanghai201306China Shanghai Engineering Research Center of Aquatic Product Processing and Preservation Shanghai201306China Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation Shanghai201306China

Transport in water is the most common method for transporting live fish in China,however,transport is a strong stressor.Transport stress could lead to a reduced immune and antioxidant system function of tiger grouper,resulting in sickness and death.Besides,tiger grouper were continuously stressed during transport,which resulted in quality deterioration.It is necessary that find a way to relieve the stress of transportation of tiger grouper.Ascorbic acid is not only a good anti-stress agent,but it is also an effective immunostimulant.β-1,3-glucan is a feed additive that can enhance the immune response of fish.Therefore,this study evaluated the effects ofβ-1,3-glucan and ascorbic acid on the nutritional-immune response and antioxidant signaling pathways of live tiger grouper during simulated transport.Results indicated that addingβ-1,3-glucan and ascorbic acid in transport-water muted the increase of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)activity.In addition,β-1,3-glucan and ascorbic acid activated Nrf2 and mediated TOR expression and then up-regulate related mRNA expression of antioxidant and immune enzymes.We concluded that the application ofβ-1,3-glucan and ascorbic acid inhibit the increase of metabolism enzymes and inflammatory factors and activate immune and antioxidant signaling pathways to relieve oxidant stress,immune response,and apoptosis.Reducing the loss of amino acids provided nutrients to relieve oxidative stress and immune response,which demonstrated immune-nutritional response in live tiger grouper during simulated transport.These results may provide a new solution for alleviating the decline of immune and antioxidant function of tiger grouper caused by transportation stress.

关键词： Tiger grouper β-1,3-Glucan Ascorbic acid Immune response Antioxidant signaling pathway

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2D/2D Heterostructures:Rational Design for Advanced Batteries and Electrocatalysis

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Energy & Environmental Materials 2022年第1期5卷 115-132页

作者： jun mei Ting Liao Ziqi Sun School of Chemistry and Physics Queensland University of Technology2 George StreetBrisbane Qld 4000Australia School of Mechanical Medical and Process Engineering Queensland University of Technology2 George StreetBrisbane Qld 4000Australia Centre for Materials Science Queensland University of Technology2 George StreetBrisbane Qld 4000Australia

Two-dimensional/two-dimensional(2D/2D)heterostructures consisting of two or more 2D building blocks possess intriguing electronic features at the nanosized interfacial regions,endowing the possibility for effectively modulating the confinement,and transport of charge carriers,excitons,photons,phonons,etc.to bring about a wide range of extraordinary physical,chemical,thermal,and/or mechanical properties.By rational design and synthesis of 2D/2D heterostructures,electrochemical properties for advanced batteries and electrocatalysis can be well regulated to meet some practical requirements.In this review,a summary on the commonly employed synthetic strategies for 2D/2D heterostructures is first given,followed by a comprehensive review on recent progress for their applications in batteries and various electrocatalysis reactions.Finally,a critical outlook on the current challenges and promising solutions is presented,which is expected to offer some insightful ideas on the design principles of advanced 2D-based nanomaterials to address the current challenges in sustainable energy storages and green fuel generations.

关键词： 2D heterostructures 2D nanomaterials battery electrocatalysis energy storage

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Phase engineering activation of low-cost iron-containing sulfide minerals for advanced electrocatalysis

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Journal of Materials Science & Technology 2022年第16期111卷 181-188页

作者： jun mei Qian Zhang Hong Peng Ting Liao Ziqi Sun Centre for Materials Science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia School of Chemistry and Physics Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China School of Chemical Engineering The University of QueenslandBrisbaneQLD 4072Australia School of Mechanical Medical and Process Engineering Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

Sustainable energy conversion and storage provide feasible approaches towards green energy solutions and carbon neutralization.The high cost and complex fabrication process of advanced energy nanomaterials,however,has impeded the practical application of emerging sustainable technologies.The direct use of earth-abundant natural minerals which contain active elements for effective catalysis and energy storage should be a promising approach to achieve affordable sustainable energy supply and green fuel generations.Herein,as typical examples of activating natural minerals for electrocatalysis,two common minerals,pyrite and chalcopyrite,are activated via a one-step phase transformation strategy.Through a facile thermal reduction process,the minerals are completely transformed into active pyrrhotite(FeS)and haycockite(Cu_(4)Fe_(5)S_(8))phases.The thermal reduction resulting phase transformation can lead to significant surface disordering and can contribute to the catalytic activity by offering favourable electronic structure for intermediates adsorption,abundant surficial active centres,and substantial surface redox pairs.The activated minerals are examined for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)catalysis.The obtained haycockite phase delivers the best performance towards acidic HER and alkaline OER.Further phase optimization is performed via loading a low percentage of iridium nanoclusters on the haycockite phase deposited onto a carbon cloth substrate,through which an overpotential as low as 310 mV for achieving 10 mA cmand a small Tafel slope of 55.6 m V dec-1are recorded for alkaline OER.This work demonstrates the feasibility of the direct use of cost-effective natural resources for addressing the current energy-related issues and paves a way to reach affordable practical emerging sustainable technologies.

关键词： Minerals Phase transformation Sulfides Oxygen evolution Electrocatalysis

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水产品优势腐败菌及致腐潜能综述

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中国食品学报 2024年第1期24卷 407-417页

作者：李娜谢晶梅俊上海海洋大学食品学院上海201306 上海城建职业学院食品与旅游学院上海201415 食品科学与工程国家级实验教学示范中心(上海海洋大学) 上海201306 上海水产品加工及贮藏工程技术中心上海201306 上海冷链装备性能与节能评价专业技术服务平台上海201306

水产品在贮藏期间呈特定的微生物演替规律,其中优势腐败菌在贮藏后期占据数量优势,且致腐败能力强,是导致水产品腐败变质的重要原因。本文在概述水产品贮藏期间微生物演替规律的基础上,介绍水产品中常见的优势腐败菌类型、生物膜形成及... 详细信息

水产品在贮藏期间呈特定的微生物演替规律,其中优势腐败菌在贮藏后期占据数量优势,且致腐败能力强,是导致水产品腐败变质的重要原因。本文在概述水产品贮藏期间微生物演替规律的基础上,介绍水产品中常见的优势腐败菌类型、生物膜形成及致腐机制,其中相关功能基因的表达、胞外酶的分泌是水产品中优势腐败菌的重要致腐要素。同时,本文从肌原纤维蛋白降解、核苷酸关联产物代谢、脂质氧化角度出发,阐述优势腐败菌的致腐败路径,提出未来可从分子水平、全基因组序列层面建立编码基因表达-优势腐败菌-水产品品质特性间的内在调控机制,特别是混合优势腐败菌的致腐机制。同时建议利用代谢组学技术构建优势腐败菌的代谢路径,关注不同代谢路径间的交互作用,为揭示水产品腐败机理、靶向抑制腐败菌以及采取有效的保鲜策略提供理论参考。

关键词：优势腐败菌致腐潜能水产品

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The application of Melissa officinalis L.essential oil nanoemulsions protects sea bass(Lateolabrax japonicus)against myofibrillar protein and lipid oxidation during refrigeration

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Food Quality and Safety 2023年第3期7卷 447-455页

作者： Yao Xie Huijie Yu Xin Zhao Chuhan Bian Hao Cheng jun mei Jing Xie College of Food Science&Technology Shanghai Ocean UniversityShanghaiChina Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation Shanghai Ocean UniversityShanghaiChina National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean UniversityShanghaiChina Shanghai Engineering Research Center of Aquatic Product Processing&Preservation Shanghai Ocean UniversityShanghaiChina

Objectives:The nutrient rich sea bass is prone to oxidation of lipid and protein during refrigeration.Materials and Methods:The research was to investigate the effect of different concentrations of Melissa officinalis L.essential oil(MOEO)nanoemulsions on myofibrillar protein(MP)and lipid oxidation in sea bass(Lateolabrax japonicus)during refrigeration at 4°C.Results:The results of thiobarbituric acid reactive substances and mitochondrial membrane potential showed that carboxymethyl chitosan/locust bean gum active coating solutions incorporating 2%MOEO nanoemulsions(C/L-2M)was the most effective in inhibiting lipid oxidation that occurred in sea bass under attack by reactive oxygen species.Low-field nuclear magnetic resonance results showed that C/L-2M maximally slowed the conversion of bound water to free water during storage.The oxidation of lipids and MP disrupted the secondary and tertiary conformations of MP and accelerated protein aggregation and degradation.Conclusions:C/L-2M slowed the oxidation of lipids and proteins by inhibiting the oxidation of reactive oxygen species.C/L-2M is a very promising preservative emulsion for the preservation of sea bass.

关键词： Lateolabrax japonicus Melissa officinalis L.essential oil lipid oxidation protein oxidation active coating solutions

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The preservation effects of chitosan copolymers(gallic acid and protocatechuic acid)on sea bass(Lateolabrax japonicus)fillets

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Aquaculture and Fisheries 2023年第3期8卷 305-315页

作者： Jiali Liu Weiqing Lan Yi Wu Xiaohong Sun jun mei Yiheng Chen Jing Xie College of Food Science and Technology Shanghai Ocean UniversityShanghai201306China Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center Shanghai201306China National Experimental Teaching Demonstration Center for Food Science and Engineering(Shanghai Ocean University) Shanghai201306China Laboratory of Quality&Safety Risk Assessment for Aquatic Products on Storage and Preservation(Shanghai) Ministry of AgricultureShanghai201306China

This study was aimed at preparing chitosan(CS)-phenolic acids copolymers to obtain better preservation effect in marine products.In this work,CS was grafted onto phenolic acids such as gallic acid(GA)and protocatechuic acid(PA)by a carbodiimide coupling method.The copolymers(CS-grafted-GA(CS-g-GA)and CS-grafted-PA(CS-g-PA))were further confirmed through physicochemical properties including ultraviolet-visible(UV-Vis)spectrophotography,fourier transform infrared(FTIR)spectrometry,differential scanning calorimetry(DSC)thermogram,rheological behaviour,scanning electron microscope(SEM)and antioxidant activity analysis.Subsequently,the effects of copolymers on preservation of refrigerated sea bass(Lateolabrax japonicus)fillets were investigated.The results showed that the CS-g-GA(110.82 mg GA/g)exhibited higher grafting rate than CS-g-PA(62.63 mg PA/g).According to the assessment of UV-Vis and FTIR spectrometry,both the GA and PA were grafted onto CS successfully.SEM analysis demonstrated that the microstructure of copolymers became irregular.Meanwhile,both the CS-g-GA and CS-g-PA copolymers displayed superior thermal stability,rheological properties and antioxidant capacity than the pure CS.Furthermore,the copolymers also revealed a significantly stronger preservation effect on sea bass fillets including inhibiting microbial growth and delaying the deterioration of color,texture and sensory quality.Therefore,CS-g-GA and CS-g-PA could be used as promising preservatives for seafood.

关键词： Sea bass fillets Chitosan Grafted Coating Carbodiimide coupling Antioxidant capacity

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Two-dimensional metal oxide nanosheets for rechargeable batteries

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Journal of Energy Chemistry 2018年第1期27卷 117-127页

作者： jun mei Ting Liao Ziqi Sun School of Chemistry Physics and Mechanical EngineeringQueensland University of Technology2 George StreetBrisbane.OLD 4000Australia

Two-dimensional（2D） metal oxide nanosheets have attracted much attention as potential electrode materials for rechargeable batteries in recent years. This is primarily due to their natural abundance, environmental compatibility, and low cost as well as good electrochemical properties. Despite the fact that most metal oxides possess low conductivity, the introduction of some conductive heterogeneous components, such as nano-carbon, carbon nanotubes（CNTs）, and graphene, to form metal oxide-based hybrids,can effectively overcome this drawback. In this mini review, we will summarize the recent advances of three typical 2D metal oxide nanomaterials, namely, binary metal oxides, ternary metal oxides, and hybrid metal oxides, which are used for the electrochemical applications of next-generation rechargeable batteries, mainly for lithium-ion batteries（LIBs） and sodium-ion batteries（SIBs）. Hence, this review intends to functionalize as a good reference for the further research on 2D nanomaterials and the further development of energy-storage devices.

关键词： 2D nanomaterials Metal oxide Lithium-ion battery Rechargeable batteries Sodium-ion battery

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The F-box protein HAWAIIAN SKIRT is required for mimicry target-induced microRNA degradation in Arabidopsis

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Journal of Integrative Plant Biology 2019年第11期61卷 1121-1127页

作者： jun mei Ning Jiang Guodong Ren State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering School of Life SciencesFudan UniversityShanghai 200438China Laboratory of Population&Quantitative Genetics Institute of Genetics and BiostatisticsSchool of Life SciencesFudan UniversityShanghai 200438China

Mimicry target-directed micro RNA degradation is widespread and highly conserved among eukaryotes. However, little is known about its mechanism of action. In this letter, by using STTM160(target mimic of mi R160) as a reporter, we show that dysfunction of HAWAIIAN SKIRT(HWS) suppresses the pleiotropic phenotype of STTM160. Small RNA sequencing and Northern blot analyses suggested that HWS only affects a subset of micro RNAs. Intriguingly,we identified a stable coexistence of mi R160/mi R399 and their mimicry targets within the AGO1 complex when HWS is compromised, pointing to a possible role of HWS in the clearance of RNA-induced silencing complexes associated with mimicry target.

关键词： mimicry letter HAWAII

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Maximizing ionic transport of Li1+xAlxTi2-xP3O12 electrolytes for all-solid-state lithium-ion storage:A theoretical study

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Journal of Materials Science & Technology 2021年第14期73卷 45-51页

作者： Tiantian Wang jun mei Jianjun Liu Ting Liao State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai 200050China School of Mechanical Medical and Process EngineeringQueensland University of Technology2 George StreetBrisbaneQLD4000Australia School of Chemistry and Physics Queensland University of Technology2 George StreetBrisbaneQLD4000Australia Centre of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Centre for Materials Science Queensland University of Technology2 George SfreefBrisbane.QLD4000Australia

The concept of all-solid-state batteries provides an efficient solution towards highly safe and long-life energy storage,while the electrolyte-related challenges impede their practical application.Li1+xAlxTi2-xP3O12(0≤x≤1)with superior Li ionic conductivity holds the promise as an ideal solidstate electrolyte.The intrinsic mechanism to reach the most optimum ionic conductivity in Al-doped Li1+xAlxTi2-xP3O12,however,is unclear to date.Herein,this work intends to provide an atomic scale study on the Li-ion transport in Li1+xAlxTi2-xP3O12electrolyte to rationalize how Al-dopant initiates interstitial Li activity and facilitate their easy mobility combining Density Functional Theory(DFT)and ab initio Molecular dynamics(AIMD)simulations.It is discovered that the interstitial Li ions introduced by Al dopants can effectively activate the neighboring occupied intrinsic Li-ions to induce a long-range mobility in the lattice and the maximum Li ionic conductivity is achieved at 0.50 Al doping concentration.The Li-ion migration paths in Li1+xAlxTi2-xP3O12have investigated as the degree of distortion of[PO4]tetrahedra and[TiO6]octahedra resulted by different Al doping concentrations.The asymmetry of the surrounding distorted[PO4]and[TiO6]polyhedrons play a critical role in reducing the migration barrier of Li ions in Li1+xAlxTi2-xP3O12.The flexible[Ti O6]polyhedrons with a capacity to accommodate the structural distortion govern the Li ionic conductivity in Li1+xAlxTi2-xP3O12.This work rationalizes the mechanism for the most optimum Li ionic conductivity in Al-doped Li Ti2P3O12electrolyte and,more importantly,paves a road for exploring novel all-solid-state lithium battery electrolytes.

关键词： Density Functional Theory Solid-state-electrolyte Li ionic conductivity Bond angle variance Al-dopant

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