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O2 elimination-regulated microstructure of biomass-derived hard carbon for enhanced plateau capacity in sodium-ion batteries

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Carbon 2025年 243卷

作者： He, Binhong Guo, Pengyu Li, Zhi Chen, Yiwen Li, Chen Zhao, Rongrong Xu, Dongjie Zhu, Yucan Hou, Zhaohui Li, Gangyong Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials School of Chemistry and Chemical Engineering Hunan Institute of Science and Technology Yueyang China School of Energy and Electrical Engineering Hunan Institute of Science and Technology Yueyang China College of Mechanical Engineering Hunan Institute of Science and Technology Yueyang China

The utilization of waste biomass for the synthesis of functional materials is of paramount importance in advancing sustainable societal development and enhancing electrochemical energy storage and conversion (EESC) systems. Herein, we present a scalable and sustainable methodology for synthesizing hard carbon (HC) from discarded disposable chopsticks through a two-step pyrolysis process, augmented by iterative vacuum and N2 purging treatments. Our findings reveal that trace O2 residues within the biomass precursors detrimentally affect the closed pore formation during high-temperature annealing. The proposed approach effectively mitigates the presence of trace O2, irrespective of the precursor's thickness, thereby facilitating a higher closed pore volume in the resultant HC. When employed as an anode material in sodium-ion batteries (SIBs), the optimized HC exhibits a reversible specific capacity of 343.4 mAh g−1 at 20 mA g−1, alongside an exceptional capacity retention rate of 99.7 % over 200 cycles. This study underscores a sustainable and scalable strategy for tailoring the microstructure of biomass-derived HCs, yielding superior Na storage performance. The insights gained herein offer valuable guidance for the precise synthesis of functional carbon materials from waste biomass, with significant implications for EESC applications. © 2025 Elsevier Ltd

关键词： Sodium-ion batteries

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水系锌离子电池隔膜设计

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science Bulletin 2024年第5期69卷 688-703页

作者：李斌曾友张炜松鲁兵安杨琪周江何章兴 School of Chemical Engineering North China University of Science and TechnologyTangshan 063009China State Key Laboratory of Chemical Resource Engineering College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China School of Materials Science and Engineering Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsCentral South UniversityChangsha 410083China School of Physics and Electronics Hunan UniversityChangsha 410082China

Aqueous zinc-ion batteries(AZIBs)are attracting worldwide attention due to their multiple merits such as extreme safety,low cost,feasible assembly,and environmentally friendly enabled by water-based *** present,AZIBs have experienced systematic advances in battery components including cathode,anode,and electrolyte,whereas research involving separators is *** separator is the crucial component of AZIBs through providing ion transport,forming contact with electrodes,serving as a container for electrolyte,and ensuring the efficient battery *** this great yet ignored significance,it is timely to present the latest advances in design strategies,the systematic classification and summary of *** summarize the separator optimization strategies mainly along two approaches including the modification of the frequently used glass fiber and the exploitation of new *** advantages and disadvantages of the two strategies are analyzed from the material types and the characteristics of different *** effects and mechanisms of various materials on regulating the uniform migration and deposition of Zn2+,balancing the excessively concentrated nucleation points,inhibiting the growth of dendrites,and the occurrence of side reactions were discussed using confinement,electric field regulation,ion interaction force,desolvation,***,potential directions for further improvement and development of AZIBs separators are proposed,aiming at providing helpful guidance for this booming field.

关键词： Aqueous zinc-ion batteries Separators Dendrite Interface optimization Ion mass transfer

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Polycarcin V induces DNA-damage response and enables the profiling of DNA-binding proteins

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National science Review 2022年第11期9卷 19-28页

作者： Zongwei Yue Fan Wu Fusheng Guo Jiyeong Park Jin Wang Liyun Zhang Daohong Liao Wenyang Li Orlando D.Sch?rer Xiaoguang Lei Beijing National Laboratory for Molecular Sciences Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of EducationDepartment of Chemical BiologyCollege of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules CenterPeking University Peking-Tsinghua Center for Life Science Academy for Advanced Interdisciplinary Studies Peking University Center for Genomic Integrity Institute for Basic Science Jiangsu JITRI Molecular Engineering Inst.Co. Ltd. Department of Biological Sciences School of Life Sciences Ulsan National Institute of Science and Technology Institute for Cancer Research Shenzhen Bay Laboratory

To maintain genomic integrity and avoid diseases, the DNA-damage response(DDR) not only detects and repairs DNA lesions, but also contributes to the resistance to DNA-damaging *** the DDR plays a significant role in drug discovery using the principle of synthetic lethality. The incomplete current knowledge of the DDR encouraged us to develop new strategies to identify and study its components and pathways. Polycarcin V, belonging to the C-aryl glycoside natural products, is a light-activatable DNA-intercalating agent that causes DNA damage by forming a covalent [2+2]cycloadduct with thymine residue under 365–450 nm of light irradiation in a DNA-sequence-independent manner. Taking advantage of the light-activatable feature and temporal control of DDR, we designed and synthesized polycarcin V-based bifunctional chemical probes, including one that cross-links DNA to DNA-binding protein to explore the DDR induced by polycarcin V and uncover novel DNA–protein interactions. Utilizing this chemical probe and activity-based protein profiling-stable isotope labeling with amino acids in cell culture, we identified 311 DNA-binding protein candidates, including known DDR factors and additional proteins that may be of interest in discovering new biology. We validated our approach by showing that our probe could specifically cross-link proteins involved in nucleotide excision repair(NER) that repair bulky DNA adducts. Our studies showed that the [2+2] cycloadduct formed by polycarcin V could indeed be repaired by NER in vivo. As a DNA-damaging agent, polycarcin V or its drug-like derivative plus blue light showed promising properties for psoriasis treatment, suggesting that it may itself hold promise for clinic applications.

关键词： polycarcin V [2+2] DNA photoadduct light-activatable chemical probe ABPP for DNA-binding protein proteomics psoriasis treatment

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Optimising bismuth magnesium niobate pyrochlores as potential ceramic dielectrics: Reaction progression, phase equilibria and impedance properties

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Ceramics International 2025年第18期51卷 24371-24385页

作者： Tan, K.B. Tan, P.Y. Feng, Y. Khaw, C.C. Lim, T.Z. Alvin Kechik, M.M.A. Chen, S.K. Chan, K.Y. Lu, M. Sun, J. Zhou, D. Department of Chemistry Faculty of Science Universiti Putra Malaysia UPM Serdang Selangor 43400 Malaysia Department of Mechanical and Material Engineering Lee Kong Chian Faculty of Engineering and Science Universiti Tunku Abdul Rahman Bandar Sungai Long Selangor Kajang43000 Malaysia Department of Science and Technology Faculty of Humanities Management and Science Universiti Putra Malaysia Bintulu Campus Bintulu Sarawak 97008 Malaysia Department of Physics Faculty of Science Universiti Putra Malaysia UPM Serdang Selangor 43400 Malaysia Centre for Advanced Devices and Systems Faculty of Engineering Multimedia University Persiaran Multimedia Selangor Cyberjaya63100 Malaysia Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education The Joint Laboratory of MXene Materials Jilin Normal University Jilin Changchun130103 China School of Materials Science and Engineering Nankai University Tianjin300350 China Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education & International Center for Dielectric Research School of Electronic Science and Engineering Xi'an Jiaotong University Shaanxi Xi'an710049 China

The phase-pure Bi2O3-MgO-M2O5 (BMN) cubic pyrochlores formed across a broad compositional range, with bismuth content varying from 41.88 to 44.50 mol %. The quadrilateral subsolidus region is defined by two substitution mechanisms: (i) Mg2+ substitution by Nb5+, balanced by oxygen stoichiometry variations and (ii) one-to-one Bi3+ replacement by Nb5+, with charge compensation by O2−. This yields a general formula of Bi3.36+xMg1.92-yNb2.72-x + yO13.76-x+(3/2)y, involving two variables with the corresponding subsolidus solution limits of 0.10 ≤ x ≤ 0.20 and 0.00 ≤ y ≤ 0.16, respectively. Notably, these BMN pyrochlores exhibit high dielectric constants, Ε′ in the range of 167–204 at 30 °C, 1 MHz and low dielectric losses, tan δ in the order of 10−4 - 10−3. The elevated dielectric constant is likely due to the enhanced polarisability of Nb2O5 within the crucial BO6 octahedra of the pyrochlore structure. Furthermore, these pyrochlores display negative temperature coefficients of permittivity, TCΕ' ranging from −528 to −742 ppm/°C at 30–300 °C and 1 MHz. These thermally stable and highly insulating BMN pyrochlores with high activation energies, Ea >1.0 eV, are promising candidate for potential application in ceramic capacitors. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Activation energy

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Preparation of graphene-based active carbons from petroleum asphalt for high-performance supercapacitors without added conducting materials

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science China(Technological sciences) 2022年第12期65卷 2866-2873页

作者： WANG Bin XIE PengYi ZHANG Miao ZHANG HongTao CHEN YongSheng School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China School of Chemistry and Materials Science Guangdong University of EducationGuangzhou 510303China The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China Research Center for Advanced Information Materials(CAIM) Huangpu Research&Graduate School of Guangzhou UniversityGuangzhou 510555China

Graphene-based active carbons(G-ACs) with a high specific surface area and high conductivity are promising electrode materials for high-performance supercapacitors. Typically, however, syntheses of the G-ACs call for expensive raw materials and are cumbersome. Here, the G-ACs are obtained by direct chemical activation of petroleum asphalt. The highest specific surface area of the prepared G-ACs is 3505 m^(2)/g and the corresponding conductivity is 32 S/m. Electrodes fabricated using the as-prepared G-ACs, i.e., without any conductive additives, demonstrate high specific capacitance and high rate performance. The specific capacitances of optimized G-ACs, as measured in a 1 mol/L TEABF_(4)/AN electrolyte and the neat ionic liquid EMIMBF_(4), are 155 and 176 F/g at 1 A/g, providing the high energy density of 39.2 and 74.9 W h/kg, respectively. In addition,the G-ACs exhibited excellent rate capability with a negligible capacitance decay from 0.5 to 10 A/g in both 1 mol/L TEABF_(4)/AN and neat EMIMBF_(4) electrolytes. Furthermore, the optimized G-AC has a high energy density(68.5 W h/kg) at a relatively high power density(8501 W/kg), indicating that it holds potential for application in green energy storage.

关键词： supercapacitor asphalt porous carbon rate capability

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Simultaneously enhancing the photocatalytic and photothermal effect of NH_(2)-MIL-125-GO-Pt ternary heterojunction for rapid therapy of bacteria-infected wounds

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Bioactive Materials 2022年第12期7卷 421-432页

作者： Yue Luo Bo Li Xiangmei Liu Yufeng Zheng Erjing Wang Zhaoyang Li Zhenduo Cui Yanqin Liang Shengli Zhu Shuilin Wu Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed By the Province and MinistryHubei Key Laboratory of Polymer MaterialsMinistry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan430062China School of Life Science and Health Engineering Hebei University of TechnologyTianjin300401China School of Materials Science and Engineering Peking UniversityBeijing100871China School of Materials Science&Engineering The Key Laboratory of Advanced Ceramics and Machining Technology By the Ministry of Education of ChinaTianjin UniversityTianjin300072China

Infections caused by bacteria threaten human health,so how to effectively kill bacteria is an urgent *** therefore synthesized a NH_(2)-MIL-125-GO-Pt ternary composite heterojunction with graphene oxide(GO)and platinum(Pt)nanoparticles co-doped with metal-organic framework(NH_(2)-MIL-125)for use in photocatalytic and photothermal synergistic disinfection under white light *** to the good conductivity of GO and the Schottky junction between Pt and MOF,the doping of GO and Pt will effectively separate and transfer the photogenerated electron-hole pairs generated by NH_(2)-MIL-125,thereby effectively improving the photocatalytic efficiency of NH_(2)-***,NH_(2)-MIL-125-GO-Pt has good photothermal effect under white light ***,the NH_(2)-MIL-125-GO-Pt composite can be used for effective *** antibacterial efficiency of NH_(2)-MIL-125-GO-Pt against Staphylococcus aureus and Escherichia coli were as high as 99.94%and 99.12%,respectively,within 20 min of white light *** vivo experiments showed that NH_(2)-MIL-125-GO-Pt could effectively kill bacteria and promote wound *** work brings new insights into the use of NH_(2)-MIL-125-based photocatalyst materials for rapid disinfection of environments with pathogenic microorganisms.

关键词： Bacterial infection NH_(2)-MIL-125 Antibacterial Photocatalytic Photothermal

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advanced chemical modification technology of inorganic oxide nanoparticles in epoxy resin and mechanical properties of epoxy resin nanocomposites: A review

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Nano Materials science 2024年

作者： Jin, Runze Xu, Baosheng Guo, Donghui Shi, Baolu Chen, Yu Jia, Xinlei Qu, Lijie Institute of Advanced Structure Technology Beijing Institute of Technology Beijing100081 China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures Beijing Institute of Technology Beijing100081 China School of Light Industry and Engineering Beijing Technology and Business University Beijing100048 China China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing100048 China

Over the past several decades, the integration of IONs into EP emerged as an effective method for enhancing its mechanical properties. Nevertheless, challenges remain, especially with u-IONs, where the interfacial strength with EP is suboptimal, resulting in aggregation within the EP matrix and a subsequent deterioration in the mechanical performance of u-ION/EP nanocomposites. In this comprehensive review, we explored advanced chemical modification techniques tailored for IONs incorporated into EP, providing a detailed examination of the mechanical characteristics of surface cm-ION/EP nanocomposites. This review investigates various chemical modification methods and their distinct impacts on the mechanical attributes of the resulting EP nanocomposites. Special emphasis is given to addressing the persistent challenges of inadequate interfacial strength and aggregation. Furthermore, this article examines prospective surface modification approaches for inorganic oxide nanoparticles, offering a visionary outlook on methods to improve the mechanical performance of EP in future. © 2024 Chongqing University

关键词： Nanocomposites Resins Mechanical properties

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A double-layer covered architecture with spinel phase induced by LiPP for Co-free Li-rich cathode with high-rate performance and long lifespan

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Nano Research 2023年第5期16卷 6805-6814页

作者： Ruiqi Zhao Manman Wu Peixin Jiao Xueting Wang Jie Zhu Yang Zhao Hongtao Zhang Kai Zhang Chenxi Li Yanfeng Ma Yongsheng Chen The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China Renewable Energy Conversion and Storage Center(RECAST) Nankai UniversityTianjin 300071China Department Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Engineering Research Center of High-efficiency Energy Storage(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Co-free Li-rich Mn-based layered oxides are promising candidates for next-generation lithium-ion batteries(LIBs)due to their high specific capacity,high voltage,low ***,their commercialization is hindered by limited cycle life and poor rate ***,an in-situ simple and low-cost strategy with a nanoscale double-layer architecture of lithium polyphosphate(LiPP)and spinel phase covered on top of the bulk layered phase,is developed for Li_(1.2)Mn_(0.6)Ni_(0.2)O_(2)(LMNO)using Li^(+)-conductor LiPP(denoted as LMNO@S-LiPP).With such a double-layer covered architecture,the half-cell of LMNO@S-LiPP delivers an extremely high capacity of 202.5 mAh·g^(−1)at 1 A·g^(−1)and retains 85.3%of the initial capacity after 300 cycles,so far,the best highrate electrochemical performance of all the previously reported *** energy density of the full-cell assembled with commercial graphite reaches 620.9 Wh·kg^(−1)(based on total weight of active materials in cathode and anode).Mechanism studies indicate that the superior electrochemical performance of LMNO@S-LiPP is originated from such a nanoscale double-layer covered architecture,which accelerates Li-ion diffusion,restrains oxygen release,inhibits interfacial side reactions,suppresses structural degradation during ***,this strategy is applicable for other high-energy-density cathodes,such as LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2),Li_(1.2)Ni_(0.13)Co_(0.13)Mn_(0.54)O_(2),LiCoO_(2).Hence,this work presents a simple,cost-effective,scalable strategy for the development of high-performance cathode materials.

关键词： Co-free Li-rich layered oxides double-layer covered architecture lithium polyphosphate high-rate performance long cycle life

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PtNi-W/C with Atomically Dispersed Tungsten Sites Toward Boosted ORR in Proton Exchange Membrane Fuel Cell Devices

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Nano-Micro Letters 2023年第9期15卷 238-256页

作者： Huawei Wang Jialong Gao Changli Chen Wei Zhao Zihou Zhang Dong Li Ying Chen Chenyue Wang Cheng Zhu Xiaoxing Ke Jiajing Pei Juncai Dong Qi Chen Haibo Jin Maorong Chai Yujing Li Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081People’s Republic of China State Power Investment Corporation Hydrogen Energy Company LimitedBeijing 102209People’s Republic of China Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124People’s Republic of China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049People’s Republic of China

The performance of proton exchange membrane fuel cells is heavily dependent on the microstructure of electrode catalyst especially at low catalyst *** work shows a hybrid electrocatalyst consisting of PtNi-W alloy nanocrystals loaded on carbon surface with atomically dispersed W sites by a two-step straightforward ***-atomic W can be found on the carbon surface,which can form protonic acid sites and establish an extended proton transport network at the catalyst *** implemented in membrane electrode assembly as cathode at ultra-low loading of 0.05 mgPt cm^(−2),the peak power density of the cell is enhanced by 64.4%compared to that with the commercial Pt/C *** theoretical calculation suggests that the single-atomic W possesses a favorable energetics toward the formation of*OOH whereby the intermediates can be efficiently converted and further reduced to water,revealing a interfacial cascade catalysis facilitated by the single-atomic *** work highlights a novel functional hybrid electrocatalyst design from the atomic level that enables to solve the bottle-neck issues at device level.

关键词： Fuel cells Membrane electrode assembly PGM catalyst Synergistic catalysis Oxygen reduction

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Dimensionality Engineering and Novel Synthesis of Bi2o2te Nanowires from Their 2d Nanoplates

SSRN

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SSRN 2024年

作者： Ma, Zhiyao Zhou, Jian Yang, Guowei School of Materials Science and Engineering Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices Laboratory of Advanced Electronics and Fiber Materials Sun Yat-sen University Guangdong Guangzhou510275 China

To address the growing demand for high-performance 1D nanostructured semiconductors, this study reports on the directional growth of Bi2O2Te nanowires facilitated by a Au nanoparticle-catalyzed Vapor-Liquid-Solid (VLS) process. Central to this process is the catalytic role of Au nanoparticles, which facilitate the formation of a liquid alloy phase crucial for VLS growth. We reveal how the growth of Bi2O2Te nanowires is directionally influenced by the crystallographic orientation of the material and the dynamics at the liquid-solid interface, presenting the process's ability to transition the intrinsic properties of 2D materials into 1D nanostructures. © 2024, The Authors. All rights reserved.

关键词： Bismuth compounds

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