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Homogenous coating of Li^(+)conductive Li_(5)AlO_(4)on single-crystalline nonstoichiometric Li_(1.04)Ni_(0.92)Al_(0.04)O_(2)for rechargeable lithium-ion batteries

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Journal of Energy Chemistry 2024年第8期95卷 651-659,I0014页

作者： Guoyu Ding Shizhou Wang Jinhan Li Ziyan Wu Jiayu Chen Jiayong Du Xinhui Huang Kuiming Liu Yudong Zhang Zhonghan Wu Yiyang Peng Qiancheng Zhao Meng Yu Fangyi Cheng Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Engineering Research Center of High-efficiency Energy Storage(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Advanced Chemical Power Sources Nankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Cobalt-free,nickel-rich LiNi_(1-x)Al_(x)O_(2)(x≤0.1)is an attractive cathode material because of high energy density and low cost but suffers from severe structural degradation and poor rate *** this study,we propose a molten salt-assisted synthesis in combination with a Li-refeeding induced aluminum segregation strategy to prepare Li_(5)AlO_(4)-coated single-crystalline slightly Li-rich Li_(1.04)Ni_(0.92)Al_(0.04)O_(2).The symbiotic formation of Li_(5)AlO_(4)from reaction between molten lithium hydroxide and doped aluminum in the bulk ensures a high lattice matching between the Ni-rich oxide and the homogenous conductive Li_(5)AlO_(4)that permits high Li^(+)*** from mitigated undesirable side reactions and phase evolution,the Li_(5)AlO_(4)-coated single-crystalline Li_(1.04)Ni_(0.92)Al_(0.04)O_(2)delivers a high specific capacity of220.2 mA h g^(-1)at 0.1 C and considerable rate capability(182.5 mA h g^(-1)at 10 C).Besides,superior capacity retention of 90.8%is obtained at 1/3 C after 100 cycles in a 498.1 mA h pouch full ***,the particulate morphology of Li_(1.04)Ni_(0.92)Al_(0.04)O_(2)remains intact after cycling at a cutoff voltage of 4.3 V,whereas slightly Li-deficient Li_(0.98)Ni_(0.97)Al_(0.05)O_(2)features intragranular cracks and irreversible lattice *** results highlight the value of molten salt-assisted synthesis and Li-refeeding induced elemental segregation strategy to upgrade Ni-based layered oxide cathode materials for advanced Li-ion batteries.

关键词： Aluminum segregation Surface coating Nonstoichiometric oxides Molten synthesis Cathode materials

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Will the fibers of the future be considered fibers?

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National science Review 2024年第10期11卷 15-17页

作者： Dewen Xu Ya Liu Hailiang Wang Wei Yan Changjun Jiang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Key Laboratory of Embedded System and Service Computing Ministry of Education Tongji University Department of Computer Science and Technology Tongji University

Fiber materials are key materials that have changed human history and promoted the progress of human civilization. In ancient times, humans used feathers and animal skins for clothing, and later they widely employed natural fibers such as cotton, hemp, silk and wool to make fabrics(Fig. 1a). Chinese ancestors had mastered the art of natural fiber weaving as early as the Neolithic *** thousand years ago, people were already familiar with and adept at techniques for spinning natural fibers [1].

关键词： future will considered fibers

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Atomically precise Pd_(8)nanocluster encapsulated in a hierarchically engineered nanoreactor towards enhanced catalysis

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Nano Research 2025年第3期18卷 187-193页

作者： Hui Yang Yi-Ming Li Jinhui Hu Dongxia Shi Yongkang Ge Jiwei Feng Hongting Sheng Manzhou Zhu Department of Chemistry and Centre for Atomic Engineering of Advanced Materials Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationAnhui UniversityHefei 230601China School of Chemistry and Materials Engineering Anhui Provincial Key Laboratory of Green Carbon ChemistryFuyang Normal UniversityFuyang 236041China

Metal-organic frameworks(MOFs)have emerged as superior hosting matrices for atomically precise nanoclusters(NCs)encapsulation,offering excellent physical and chemical protections for advanced ***,the MOF coating significantly reduces the NC catalytic efficiency due to the diffusion barriers and the confined ***,a hierarchically engineered MOF nanoreactor was constructed by controlled structural etching for NC *** nanoreactor possesses hierarchical pores to accelerate the diffusion rate of reactants and creates hollow structures to unleash the confined NC molecules from the rigid MOF network to a capacious *** enhanced mass transfer,improved freedom of NCs,and outstanding stability collectively boosted the catalytic activity of the *** controlling the etching time,freestanding Pd8@zeolitic imidazolate framework-8(ZIF-8)-TA10 displayed a catalytic efficiency that was 3.17 times greater than that of the initial confined Pd8@ZIF-8 and even better than free *** work opens a new strategy to reduce the inherent limitations of porous matrixes for developing high-performance catalysts.

关键词： metal nanoclusters metal-organic frameworks zeolitic imidazolate framework-8(ZIF-8) hierarchical pores nanoreactor

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Facile anodization approach derived low-crystalline NiCoeOH/NiCoOOH composite films for ultra-high areal capacity and mass loading supercapacitors

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Journal of Materiomics 2023年第1期9卷 131-137页

作者： Mingyuan Gao Yuexin Liu Xiaoyu Li Ying Liu Zixing Wang Kefeng Cai Key Laboratory of Advanced Civil Engineering Materials(Tongji University) Ministry of EducationShanghai Key Laboratory of Development and Application for Metal-Functional MaterialsSchool of Materials Science&EngineeringTongji University4800 Caoan RoadShanghai201804China

The design of supercapacitor materials with both high areal capacity(C)and high mass loading is vitally important for enhancing energy density(E).Herein,we prepared a NiCosingle bondOH/NiCoOOH composite film consisting of NiCosingle bondOH/NiCoOOH nanosheets on an expanded graphite paper(EGP)by using a facial anodization *** as-prepared NiCosingle bondOH/NiCoOOH film exhibits ultra-high C of 11 mA·h·cm^(-2)at a mass loading of 165 mg·cm^(-2),high rate capability of 71%and excellent cycling stability of 95%after 12000 *** outstanding performance is ascribed to the low-crystalline feature of the NiCosingle bondOH/NiCoOOH nanosheets,and the synergistic effect of the NiCosingle bondOH and NiCoOOH phases and high conductive porous *** aqueous asymmetric supercapacitor,assembled with the NiCosingle bondOH/NiCoOOH on EGP and Fe_(2)O_(3)on EGP as positive-and negative-electrode,respectively,shows a highest E of 3.8 mW·h·cm^(-2)at a power density(P)of 4 mW·cm^(-2)and a maximum P of 107 mW·cm^(-2)at an E of 2.7 mW·h·cm^(-2).

关键词： Supercapacitor NiCo-OH NiCoOOH Mass loading Areal capacity Anodic oxidation

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New Carbon Nitride C_(3)N_(3) Additive for Improving Cationic Defects of Perovskite Solar Cells

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Energy & Environmental materials 2023年第1期6卷 281-288页

作者： Zuhong Li Jiaxin Feng Jinguo Cao Jiaren Jin Yijun Zhou Duoling Cao Zihui Liang Bicheng Zhu Ming Li Li Zhao Shimin Wang Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science and EngineeringHubei UniversityWuhan 430062China Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesHubei Key Laboratory of Polymer MaterialsSchool of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074China

Due to the loss of organic amine cations and lead ions in the structure of the iodine-lead methylamine perovskite solar cell,there are a large number of defects within the film and the recombination loss caused by grain boundaries,which seriously hinder the further improvement of power conversion efficiency and ***,a novel carbon nitride C_(3)N_(3) incorporated into the perovskite precursor solution is a multifunctional strategy,which not only increases the light absorption strength,grain size,and hydrophobicity of the perovskite film,but also effectively passivates the bulk and interfacial defects of perovskite and verified by the first-principles density functional theory *** a result,the efficiency and stability of perovskite solar cells are *** device with 0.075 mg mL^(-1) C_(3)N_(3) additive delivers a champion power conversion efficiency of 19.91%with suppressed hysteresis,which is significantly higher than the 18.16% of the control *** addition,the open-circuit voltage of the modified device with the maximum addition as high as 1.137 V is 90.96% of the Shockley–Queisser limit(1.25 V).Moreover,the power conversion efficiency of the modified device without encapsulation can maintain nearly 90% of its initial value after being stored at 25℃ and 60% relative humidity for 500 *** work provides a new idea for developing additives to improve the power conversion efficiency and stability of perovskite solar cells.

关键词： additive C_(3)N_(3) humidity stability passivate defect perovskite solar cells

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Deep-ultraviolet nonlinear-optical crystal BaNa_(2)[PO_(3)(OH)]_(2) with large birefringence and strong second-harmonic-generation response

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Chinese Journal of Structural Chemistry 2023年第1期42卷 9-14页

作者： Yuanyu Yang Yao Guo Yi-Gang Chen Chengbo Li Xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information of Ministry of Education School of Chemistry and Material ScienceShanxi Normal UniversityTaiyuan030006China Henan Joint International Research Laboratory of Nanocomposite Sensing Materials School of Materials Science and EngineeringAnyang Institute of TechnologyAnyang455000China College of Chemistry&Chemical Engineering Key Laboratory of Interface Science and Engineering in Advanced MaterialMinistry of EducationTaiyuan University of TechnologyYingze WestTaiyuan030024China

Deep-ultraviolet(DUV,λ<200 nm)nonlinear-optical(NLO)crystals play a pivotal role in modern laser science and *** phosphates have been considered as fascinating candidates for DUV NLO crystal ***,how to generate both strong second-harmonic-generation(SHG)response and large birefringence for promising DUV NLO metal phosphates is a long-standing ***,a new DUV NLO metal phosphate,BaNa_(2)[PO_(3)(OH)]_(2),was successfully synthesized,which features a two-dimensional[NaPO_(3)(OH)]_(∞)alveolate layer alternately connected by highly asymmetric[PO_(3)(OH)]groups and NaO5 triangular ***_(2)[PO_(3)(OH)]_(2)can realize a good balance of DUV nonlinear properties covering short UV absorption edge less than 190 nm,strong SHG response with the magnitude of~1.2×benchmark KH_(2)PO_(4)(KDP),and the largest birefringence with the experimental value of 0.064@590±3 nm in reported alkaline/alkaline-earth metal phosphates,producing the shortest phase-matching output down to the wavelength of 164 *** research results show that BaNa_(2)[PO_(3)(OH)]_(2)crystal is a potential DUV NLO crystal material.

关键词： Nonlinear-optical Birefringence Structure Phosphates Optical properties

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Electro-functionalized 2D nitrogen-carbon nanosheets decorated with symbiotic cobalt single-atoms/clusters

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Journal of Energy Chemistry 2025年第2期101卷 385-391,I0008页

作者： Xinyan Zhou Sifan Qiao Zhenzhen Zhao Meiqi Liu Kexin Song Fuxi Liu Nailin Yue Xiujuan Li Meng Zou Wei Zhang Key Laboratory of Automobile Materials MOE and School of Materials Science&Engineeringand Electron Microscopy Centerand International Center of Future Scienceand Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchun 130012JilinChina Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130025jilinChina

Two-dimensional(2D)materials loaded with single atoms and clusters are being set at the forefront of catalysis due to their distinctive geometric and electronic ***,the usually-complicated synthesis procedures impede in-depth clarification of their catalytic *** this end,herein we developed an efficient one-step dimension-reduction carbonization strategy,with which we successfully architected a highly-efficient catalyst for oxygen reduction reaction(ORR),featured with symbiotic cobalt single atoms and clusters decorated in two-dimensional(2D)ultra-thin(3.5 nm thickness)nitrogen-carbon *** synergistic effects of the two components afford excellent oxygen reduction activity in alkaline media(E_(1/2)=0.823 V ***)and thereof a high power density(146.61 mW cm^(-2))in an assembled Zn-air *** revealed by theoretical calculations,the cobalt clusters can regulate electrons surrounding those individual atoms and affect the adsorption of intermediate *** a consequence,the derived active sites of single cobalt atoms lead to a significant improvement of the ORR ***,our work may fuel interests to delicate architectu re of single atoms and clusters coexisting 2D support toward optimal electrocatalytic performance.

关键词： Singleatoms and clusters Two-dimensional Nanosheets Carbon-Nitrogen Oxygen reduction reaction

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Ultrafast synthesis of highly graphitized carbon foams through water explosion method

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Progress in Natural science:materials International 2024年第6期34卷 1207-1215页

作者： Pengfei Huang Zhikai Miao Zekun Li Li Chen Yuan Li Zhedong Liu Jingchao Zhang Jiawei Luo Wenjun Zhang Wei-Di Liu Xinxi Zhang Rongtao Zhu Yanan Chen School of Chemical Engineering and Technology China University of Mining and Technology School of Materials Science and Engineering Key Laboratory of Advanced Ceramics Machining Technology of Ministry of Education Tianjin Key Laboratory of Composite and Functional Materials Tianjin University School of Chemistry and Physics ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality and Centre for Materials Science Queensland University of Technology

In recent years, carbon foams have attracted considerable attention due to their distinctive physical and chemical properties, including high specific surface area, excellent electrical conductivity, and robust chemical stability,which render them highly suitable for applications in energy storage, catalysis, and adsorption. However, conventional carbon foams are limited by low levels of graphitization and a lack of long-range structural order,restricting their use in high-performance applications. Traditional synthesis methods, such as templating,chemical activation, and hydrothermal processes, although effective in forming porous structures, are complex and inefficient. To overcome these limitations, this study introduces a novel one-step water explosion method that combines Joule heating and steam activation to synthesize highly graphitized porous carbon foam. By rapidly vaporizing intercalated water molecules between graphite layers, the method overcomes van der Waals forces,leading to the exfoliation of the material. The process, conducted under ultra-high temperatures in less than 1 s,produces carbon foam with high porosity, large surface area, and excellent electrochemical performance. In lithium-ion battery tests, the carbon foam exhibited a high capacity of 516.2 m Ah/g at 0.1 A/g and retained92.77 % of its capacity after 1100 cycles. This efficient and scalable synthesis technique offers a promising pathway for the development of advanced anode materials in energy storage applications, significantly outperforming conventional graphite-based materials.

关键词： Water explosion Joule heating Carbon foam High graphitization Lithium-ion batteries anode

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Hierarchical FeO_(χ)H_(y)@Ni_(3)B hybrid for efficient alkaline oxygen evolution at high current density

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Journal of Energy Chemistry 2024年第7期94卷 599-607页

作者： Fuxi Liu Qing Liang Zhenyu Li Meiqi Liu Nailin Yue Zizhun Wang Xu Zou Wei Zhang Key Laboratory of Automobile Materials Ministry of Education School of Materials Science&EngineeringElectron Microscopy CenterInternational Center of Future ScienceJilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchun 130012JilinChina

Electrocatalysts with high activity and long-term durability are vital toward large-scale hydrogen pro-duction from electrocatalytic water ***,the self-supported electrode(FeO_(χ)H_(y)@Ni_(3)B/NF)with hierarchical heterostructure was simply prepared by using Ni_(3)B chunks grown on nickel foam as sub-strate to in situ form vertical FeO_(χ)H_(y)*** hybrid shows efficient oxygen evolution reaction activity with overpotentials as low as 267 and 249 mV at 100 mA cm^(-2)in 1 M KOH solution and 30 wt%KOH solution,***,it also exhibits excellent catalytic stability,sustaining catalysis at 500 mA cm^(-2)in 1 M KOH solution for 200 h,and even for 200 h at 1000 mA cm^(-2)in 30 wt%KOH *** experimental results reveal that the FeO_(χ)H_(y)@Ni_(3)B/NF is endowed with superhydrophilic and superaerophobic surface properties,which not only provide more mass transport channels,as well as facilitated the diffusion of reaction intermediates and gas ***,it holds faster reaction kinetics,more accessible active sites and accelerated electron transfer rates due to strong synergistic interactions attheheterogeneous interface.

关键词： FeO_(χ)H_(y)@Ni_(3)B/NF hybrid Heterostructure Oxygen evolution reaction Electrocatalytic

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Recent Progress in Fabrication and Structural Design of Thermal Conductive Polymer Composites

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Chinese Journal of Polymer science 2024年第3期42卷 277-291,I0004页

作者： Yuan-Kai Du Zheng-Xue Shi Shan Dong Hui Jin Xue Ke Pei Zhao Bing-Bing Jiang Feng You Hubei Key Laboratory of Plasma Chemistry and Advanced Materials School of Material Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Key Laboratory of Green Preparation and Application of Functional Materials Ministry of EducationHubei UniversityWuhan 430062China Institute of Molecular Aggregation Science Tianjin UniversityTianjin 300072China

In recent years, the demand direction for electronic equipment has expanded into embedded and miniaturized devices. The heat radiation problem has become one of the most significant factors for hindering the development of electronic devices. Since heat radiation material is one of the important components in electronic devices, the demand for enhancing thermal conductivity is also increasingly urgent. Research on thermal conductive polymer composites has become a major direction for developing functional composites. This work reviewed the recent progress in the fabrication of thermal conductive polymer composites. Five different structures are presented, including the using of single fillers,hybrid fillers, double threshold percolation structure, segregated structure and other complex multiphase structures. Specifically, the preparation of high-performance thermal conductive polymer composites was introduced through the combination of various thermal conductive ***, the development direction of high thermal conductive polymer composites was briefly explored.

关键词： Thermal conductive polymer Hybrid fillers Polymer composite Thermal resistance

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