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Recent Progress in Optical Sensors Based on MXenes Quantum Dots and MXenes Nanosheets

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Journal of Analysis and Testing 2024年第1期8卷 95-113页

作者： Chunxiao lin Xinhong song Weilan {2. Ting Liu Mingcong rong Li Niu Guangzhou Key Laboratory of Sensing materials and Devices/Center for Advanced Analytical Science/School of chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China College of Ocean Science and Engineering Shanghai Maritime UniversityShanghai 201306China

In recent years,MXenes,as a new promising two-dimensional {2.,have received extensive attentions in the fields of environmental remediation,catalysts,sensors,and energy *** broaden the applications of MXenes in sensing,MXenes nanosheets(MNSs) and MXenes quantum dots(MQDs) are prepared by physical etching or chemical *** are monolayered or multilayered MXenes nanosheets within several nanometers in height,and can serve as the perfect reaction substrate and fluorescence *** are spherical,fluorescent MXenes QDs within several nanometers in size,which possess favorable stability and photo *** the distinct features such as high conductivity,favorable hydrophilicity,biocompatibility,abundant surface functional groups,and easy functionalization,MNSs and MQDs show potential applications in the fields of anti-counterfeiting,environmental monitoring,biosensing and *** review focuses on the research of MNS s/MQDs-based optical sensors,including colorimetric sensors,fluorescence sensors,electrochemiluminescence sensors,surface plasmon resonance sensors,and surface-enhanced Raman scattering ***,the current challenges and prospects concerning MNSs/MQDs-based optical sensing techniques are discussed.

关键词： MXenes quantum dots Fluorescence Colorimetry Electrochemiluminescence Surface plasmon resonance

ELECTROCHEMICAL　PROPERTIES　OF　THE　HYDROGEN　ABSORPTION　OF　AMORPHOUS　Ml－Ni　ALLOY　FILMS

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Acta Metallurgica Sinica(English Letters) 1995年第2期8卷 123-125页

作者： HU Weikang ZHANG Yunshi song deying LUO Daojun WANG Yun(Institute of {2. energy {2. chemistry.nankai university.tianjin.China) Inst of new energy {2. Chemistry Nankai Univ Tianjin China

The amorphous Ml-Ni films were prepared by means of ion beam sputtering the electrochemical hydrogen storage,discharge ability and durability of amorphous film electrodes are investigated,The results show that the maximum capacities of the amorphous MlNi_(1.79),MlNi_(2.52.,and MlNi_(3.44) samples are 90,100 and 142.mAh/g,respectively,and the MlNi_(3.44) amorphous film does not off and disintegrate into fine particles a fier more than 580 cycles.

关键词： amorphous film.Ml-Ni alloy electrochemical hydrogen absorption

Chemical vapor deposition making better lithium-sulfur batteries

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Science Bulletin 2024年第13期69卷 2013-2016页

作者： Yingze song Lixian song Menglei Wang Wenlong {2. State Key Laboratory of Environment-Friendly energy materials School of Materials and ChemistrySouthwest University of Science and TechnologyMianyang 621010China School of material Science and Engineering Henan University of TechnologyZhengzhou 450001China Department of Advanced energy materials College of Materials Science and EngineeringSichuan UniversityChengdu 610064China

The burgeoning demand for modern electronic devices and electric vehicles has driven the development of efficient,reliable,and environmentally friendly batteries[1,2..Lithium–sulfur(Li–S)batteries with high theoretical capacity(1672.mA h g1)and energy density(2.00 W h kg1),have garnered significant interest in both academic and industrial research[3,4].However,the widespread production and commercialization of Li–S batteries are impeded by the inherent characteristics of sulfur and lithium,along with their complex electrochemical ***,challenges such as the polysulfide shuttle effect and the slow kinetics of the sulfur nucleation/decomposition reaction hinder capacity utilization and cycling *** overcome these challenges,innovative electrocatalyst strategies aimed at enhancing activity have been explored.

关键词： lithium overcome cycling

Electrochemical hydrogen storage performance of AB_(5-)CoB composites synthesized by a simple mixing method

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Rare Metals 2009年第6期28卷 629-632页

作者： song Dawei WANG Yijing WANG Yaping JIAO Lifang YUAN Huatang Institute of new energy {2. {2. Engineering Research Center of Energy Storage ＆ Conversion （Ministry of Education of China） and Key Laboratory of En-ergy-Material Chemistry （Tianjin） Nankai University Tianjin 300071 China

AB5 （MlNi4.0Al0.3Cu0.5Zn0.2. alloy and CoB alloy were prepared by arc melting. AB5-CoB composites were synthesized by simple mixing of AB5 alloy powders and CoB alloy powders, and their electrochemical hydrogen storage properties were studied as negative electrodes in KOH aqueous solution. The maximum discharge capacity of the AB5-CoB（50%） composite （the content of CoB in the composite is 50 wt.%） reached 365.3 mAh.g^-1. After 100 charge-discharge cycles, the discharge capacity of the AB5-CoB（50%） composite was still much higher than that of the AB5 alloy. The high rate discharge capability （HRD） and potentiodynamic polarization were also tested.

关键词： composite materials powder metallurgy electrochemical techniques electrochemical properties

THIN FILM PREPARATION OF AMORPHOUS Ti-Ni ALLOY AND THEIR HYDROGEN ABSORPTION PROPERTIES

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Chinese Chemical Letters 1993年第11期4卷 999-1002页

作者： Wei Kang HU- Pan Wen SHEN Department of chemistry, nankai university,{2. Yun Shi ZHANG, De Ying song, Yun WANG Institute of new energy material chemistry, nankai university,{2.

Amorphous Ti_(0.88)Ni_(1.00) and Ti_(1.69)Ni_(1.00) alloy films are prepared by means of ion beam sputtering using TiNi and Ti_2.i alloy targets, respectively. Their hydrogen absorption properties are investigated by a galvanostatic method. The results show th the discharge capacity of the Ti_(1.69)Ni_(1.00) sample is higher than that of the Ti_(0.88)Ni_(1.00) sample. And the film electrodes have high durability and long cycle life.

关键词： Ti THIN FILM PREPARATION OF AMORPHOUS Ti-Ni ALLOY AND THEIR HYDROGEN ABSORPTION PROPERTIES Ni

Tetraphenylethylene dicycle helicates: circularly polarized luminescence and chiral recognition based on emission wavelength change

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Science China chemistry 2024年第11期67卷 3817-3824页

作者： Zhi-rong Xu Miao-Li Gao Ming Hu Wei Yu Yan-song Zheng Key Laboratory of material chemistry for{2. Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology

Chiral tetraphenylethylene(TPE) dicycle tetraaldehyde and TPE dicycle tetraacids bearing optically pure groups on the cycles were designed and synthesized. Due to the propeller-like conformation immobilization of TPE unit, this new class of TPE dicycle was resolved into M-and P-enantiomers, which could emit strong circular polarized luminescence(CPL). Interestingly,these TPE helicates displa{2.d exceptional ability of molecule recognition. While the TPE dicycle tetraaldehyde could detect the microscale water in anhydrous tetrahydrofuran, the chiral TPE dicycle tetraacid could display different fluorescent color after interacting with two enantiomers of a wide variety of chiral amines including monoamines, diamines, and aminols, which could be applied to chiral recognition of these chiral amines. Furthermore, the emission wavelength of TPE dicycle tetraacid was found to change linearly with the enantiomer purity of chiral amine from enantiomer excess(ee) percent-100% to +100%, for the first time showing the potential for quantitative chiral analysis of chiral amines based on emission wavelength change. The emission wavelength was affected less by environmental factors than fluorescence intensity, which would enable the chiral analysis based on wavelength change with higher accuracy and repeatability.

关键词： TPE dicycle helicate CPL chiral recognition enantiomer excess analysis emission wavelength change

Functional Optical Fiber Sensors Detecting Imperceptible Physical/Chemical Changes for Smart Batteries

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Nano-Micro Letters 2024年第8期16卷 268-308页

作者： Yiding Li Li Wang Youzhi song Wenwei Wang Cheng lin Xiangming He Institute of Nuclear and new energy Technology Tsinghua UniversityBeijing 100084People’s Republic of China National Engineering Research Center of Electric Vehicles Beijing Institute of Technology(BIT)Beijing 100081People’s Republic of China Shenzhen Automotive Research Institute of BIT(Shenzhen Research Institute of National Engineering Research Center of Electric Vehicles) Shenzhen 518118People’s Republic of China

The battery technology progress has been a contradictory process in which performance improvement and hidden risks *** the battery is still a“black box”,thus requiring a deep understanding of its internal *** battery should“sense its internal physical/chemical conditions”,which puts strict requirements on embedded sensing *** paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed,focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano-micro-level battery {2. structural phase transition,electrolyte degradation,electrode-electrolyte interface dynamics to three-dimensional macro-safety *** paper contributes to understanding how to use optical fiber sensors to achieve“real”and“embedded”*** the inherent advantages of the advanced optical fiber sensor,it helps clarify the battery internal state and reaction mechanism,aiding in the establishment of more detailed *** advancements can promote the development of smart batteries,with significant importance lying in essentially promoting the improvement of system ***,with the help of smart batteries in the future,the importance of consistency can be weakened or even *** application of advanced optical fiber sensors helps comprehensively improve the battery quality,reliability,and life.

关键词： Smart battery Advanced embedded optical fiber sensor Battery internal physical/chemical state Quality-reliability-life characteristic

Nanodiamond:a promising metal-free nanoscale material in photocatalysis and electrocatalysis

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Rare Metals 2024年第8期43卷 3501-3552页

作者： Xiao-Wu Gao Zi-Wei Zhao Yang He Sai-Fei Fan Ke-Ran Jiao Si-Yu Lou Xin-Yue Han Peng-Fei song rong {2. Zhun Hu Zhong-Jie Jiang Yong-Jie Wang Jia-Qi Zhu Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic materials and Intelligent Photonic Systems School of ScienceHarbin Institute of TechnologyShenzhen 518055China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China School of Advanced Technology Xi'an Jiaotong-Liverpool UniversitySuzhou215000China Department of Biosciences Rice UniversityHoustonTX 77251USA Institute of Industrial Catalysis School of Chemical Engineering and TechnologyXi'an Jiaotong UniversityXi'an 710049China Guangzhou Key Laboratory for Surface chemistry of energy{2.s New Energy Research Institute&Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhou 510006China

Benefiting from its surface-rich functional groups,eco-friendliness,impressive electrochemical properties,excellent light absorption,structural tunability at the atomic/morphological level,and ultra-high stability under harsh conditions,nanodiamond has emerged as a promising carbon-based non-metallic material in the field of {2. conversion such as electrocatalysis and ***,nanodiamond,as a new generation of green catalysts,can overcome the poisoning of catalysts by complex pollutants in advanced oxidation processes,thus effectively removing organic matter from water,which is unparalleled in reducing the cost of water purification and avoiding secondary cross-contamination of water by traditional heavy metal-based ***,we review the research and development of nanodiamonds as major electrocatalysts and photocatalysts for {2. conversion and for air/water treatment for environmental *** relevant properties,trimming strategy,mechanistic understanding,and design principles of nanodiamond as a catalyst are described,as well as the challenges and prospects of this emerging field.

关键词： Carbon materials Nanodiamond Electrocatalysis Photocatalysis energy conversion Pollutant treatment

用HAc-NaAc缓冲溶液对AB5型储氢合金表面改性的研究

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稀土 1998年第4期 32-34页

作者： Zhou Zhen,Yan Jie,song deying,Zhang Yunshi (Institute of {2. energy {2. chemistry,nankai university,tianjin 300071)

用ＨＡｃ－ＮａＡｃ缓冲溶液对ＡＢ５型储氢合金进行表面改性，通过ＸＲＤ、化学分析和恒电流充放电方法进行比较研究发现：这一方法没有改变合金的主体结构，但改变了合金表面层中的元素组成，这对于储氢合金的初期容量的提高有一定作用。

关键词：储氢合金表面处理镍氢电池