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Hydrogen/Electron Amphiphilic Bi-Functional Water Molecular Inactivator-Assisted Interface Stabilization in Highly Reversible Zn Metal Batteries

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Angewandte Chemie 2024年第7期137卷

作者： Wenwei Zhang Dr. Shaohua Zhu Tong Yang Lu Wu Jinghao Li Jiang Liang Dr. Yu Liu Lianmeng Cui Chen Tang Xinran Chen Huiqing Zhou Fan Qiao Min Zhou Prof. Ping Luo Fengtong Chi Dr. Xiaobin Liao Prof. Lei Zhang Prof. Qinyou An State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology Wuhan University of Science and Technology Wuhan 430081 China School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China Hubei Longzhong Laboratory Wuhan University of Technology (Xiangyang Demonstration Zone) Xiangyang Hubei 441000 China Zhongyu Feima New Material Technology Innovation Center (Zhengzhou) Co. Ltd. High Technology Industrial Development Zone Zhengzhou 450001 China

Continuous hydrogen-bond-network in aqueous electrolytes can lead to uncontrollable hydrogen transfer, and combining the interfacial parasitic electron consumption cause the side reaction in aqueous zinc metal batteries (AZMBs). Herein, hydrogen/electron amphiphilic bi-functional 1,5-Pentanediol (PD) molecule was introduced to stabilize the electrode/electrolyte interface. Stronger proton affinity of -OH in PD can break bulk-H 2 O hydrogen-bond-network to inhibit the activity of water, and electron affinity can enhance electron acceptation capability, which ensures that PD is preferentially bound to electrode material over H 2 O. Besides, the participation of PD in the Zn 2+ solvation structure reduces water content at the solid–liquid interface and promotes uniform deposition process by optimizing Zn 2+ de-solvation energy. Accordingly, dense and vertical zinc texture based on intrinsic steric hindrance effect of PD and formed SEI protective layer to induce stable Zinc anode-electrolyte interface. Moreover, an organic–inorganic shielding water layer was formed at the cathode side to suppress vanadium dissolution in vanadium Oxide. Consequently, Zn//Zn symmetric cell could cycle for more than 5600 hours at 1 mAh cm −2 @1 mA cm −2 (more than 250 hours at 50 °C). Besides, the VO 2 and I 2 cathode all achieved stable cycling performance and former pouch cell could reach average capacity of 0.13 Ah.

关键词： Electrode/electrolyte interface Active-water SEI Electron and proton affinity Cathode dissolution

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Parameter optimization for preparing carbon fiber/epoxy composites by selective laser sintering 26

Parameter optimization for preparing carbon fiber/epoxy comp...

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26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015

作者： Zhu, Wei Yan, Chunze Yang, Jiayi Wen, Shifeng Shi, Yusheng State key Laboratory of Materials Processing and Die &Mould Technology Huazhong University of Science and Technology Wuhan430074 China College of Engineering Mathematics and Physical Sciences University of Exeter Exeter DevonEX4 4QF United Kingdom

Carbon fiber (CF) reinforced thermosetting resin composites offer a wide range of high performance features including excellent strength, modulus and thermal resistance and light weight. Consequently, they are increasingly demanded by aerospace and automotive industries due to the tighter requirements of the transport vehicles for lightweight as well as higher payloads. Although thermoplastics and their composites have been widely used in additive manufacturing (AM), to date it is difficult to manufacture carbon fibers reinforced thermosetting composite parts via AM technologies. Therefore, this study developed a novel method based on selective laser sintering (SLS) to fabricate high-performance carbon fiber/epoxy resin composites. The response surface method was employed to study the processing parameters affecting the quality of final parts, and an optimized processing condition was obtained. © SFF *** rights reserved.

关键词： Thermosets

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A General and Mild Two-Step Strategy Using Bioderived Diols and CO2for Chemically Recyclable Polycarbonates and Closed-Loop CO2Fixation

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Angewandte Chemie 2025年

作者： Jiaming Tian Nikos Hadjichristidis Xin Wang Zhengbiao Zhang State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Materials Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China Polymer Synthesis Laboratory KAUST Catalysis Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia State Key Laboratory of Radiation Medicine and Protection Soochow University Suzhou 215123 China

Developing chemically recyclable polymers using CO 2 and sustainable co-feedstocks is an important strategy for achieving carbon-neutral production of new polymers and mitigating plastic pollution. Herein, a series of six-membered cyclic carbonate monomers with different alkyl α -substituents were synthesized using CO 2 and bioderived 1,3-alkanediol as raw materials at room temperature and atmospheric pressure. The organocatalytic ring-opening polymerization was systematically studied using a range of common and readily available organocatalysts. Phosphazene base ( t -BuP 2 ) was identified as the most effective catalyst, offering excellent control over the entire polymerization. The regioselectivity of the synthesized polycarbonates, ranged from 0.74 to 0.99, with the highest value achieved when the side group was isopropyl (highest steric hindrance). Notably, the α -substituent in the monomers reduced the ring strains, allowing the resulting polycarbonates to be fully recycled to the monomers without decarboxylation. The recycling process effectively traps CO 2 in a closed loop between monomers and polymers, preventing its release into the atmosphere. The alkyl side groups enhanced the hydrophobicity of the polycarbonates, thereby reducing the likelihood of CO 2 release through hydrolysis during their lifecycle, achieving a robust CO 2 closed-loop fixation. The utility of CO 2 -based aliphatic polycarbonates as adhesives and the ability of copolymerization with l -lactide were explored.

关键词： Adhesives Chemically recyclable polycarbonates CO2 closed-loop fixation Ring-opening polymerization

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PAA-assisted synthesis of color-tunable Zn2SiO4:Mn2+ phosphors

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Journal of materials Science: materials in Electronics 2025年第15期36卷

作者： Li, Huiya Wang, Xiaomeng Zhao, Xiangyi Ma, Yao Wang, Xin Xie, Jixing Jiao, Yunhong Ma, Haiyun Qu, Hongqiang Xu, Jianzhong Wang, Liyong State Key Laboratory of New Pharmaceutical Preparations and Excipients The Flame Retardant and Processing Technology Engineering Research Center College of Chemistry and Materials Science Hebei University No. 180 Wusi Road Baoding071002 China

Color-tunable Zn2SiO4:Mn2+ phosphors were synthesized by solvothermal method with the assistance of polyacrylic acid (PAA). The structure, morphology and photoluminescence properties of phosphors were characterised by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and photoluminescence spectroscopy. The results show that the PAA-assisted synthesis has no effect on the structure and morphology, but creates a new characteristic peak at 610 nm in the emission spectrum. Based on the luminescent properties of the prepared phosphors, their applications in light-emitting diodes (LEDs) and potential fingerprint identification were further explored. The results indicated that the color-tunable Zn2SiO4:Mn2+ phosphors could be applied to LEDs and fingerprint identification. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.

关键词： Fourier transform infrared spectroscopy

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In-Situ Joule-Heating Drives Rapid and On-Demand Catalytic Vocs Removal with Ultralow Energy Consumption

SSRN

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SSRN 2022年

作者： Du, Peng Wang, Ruyue Deng, Bohan He, Xian Long, Yuanzheng Yang, Cheng Wang, Zhiwei Ge, Binghui Huang, Kai Zhang, Ru Lei, Ming Wu, Hui State Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing100876 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China Xitucheng Road NO.10 Beijing100876 China Key Laboratory of Beijing on Regional Air Pollution Control Beijing Key Laboratory for Green Catalysis and Separation Center of Excellence for Environmental Safety and Biological Effects Beijing University of Technology Beijing100124 China Institutes of Physical Science and Information Technology Anhui University Hefei230601 China

The running of environmental purification usually employs massive consumption of energy, and it is of significant scientific importance and real impact to reduce the energy cost in environmental treatments. In particular, it is urgently required to minimalize the energy cost of the catalytic oxidation of gaseous pollutants represented by volatile organic compounds (VOCs). Herein, we develop a rapid in-situ Joule-heating configuration to drive the catalytic VOCs oxidation with ultra-low energy consumption. As a prototypical illustration, atomically dispersed Pt/CeO 2 catalyst was decorated on conductive Nickle foam substrate to act as both catalytic and electric components with minimal pressure drop and high compatibility. The catalytic system exhibited 100% conversion toward toluene (1000 ppm, 33 ml min -1 ) with an ultralow input power of 6.5 W, which was 87% lower than that of a conventional heating furnace. Moreover, the long-term stability, high universality for various VOCs, and responsiveness for real-time changing components were also demonstrated. The outstanding electro-thermal properties of the system can be extended to more gaseous catalytic reactions with much lower energy consumptions. © 2022, The Authors. All rights reserved.

关键词： Volatile organic compounds

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Effect of Constituent Core-sizes on Microstructure and Dielectric Properties of BaTiO_3@(0.6BaTiO_3-0.4BiAlO_3) Core-Shell Material

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Journal of Wuhan University of technology(materials Science) 2018年第3期33卷 589-597页

作者： APPIAH Millicent 郝华 CHEN Wenjin CHEN Cheng YAO Zhonghua CAO Minghe LIU Hanxing State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Material Science and EngineeringWuhan University of Technology International School of Materials Science and Engineering Wuhan University of Technology

The fundamental characteristics of varied initial core-sizes of Ba Ti O3（BT） and its influential role on the morphology and dielectric properties of Ba Ti O3@0.6 Ba Ti O3-0.4 Bi Al O3（BT@0.6 BT-0.4 BA） ceramic samples were studied. Alkoxide sol-precipitation method was adopted as revised chemical route to synthesize the constituent ＂core＂ BT powders in a dispersed phase, whereas the distinctive initial nano-sized particles were affected by the pre-calcination temperatures（600-900 ℃）.The microstructure of the uncoated BT ceramics revealed an exaggerated grain growth with an optimized dielectric constant（ε（max）〉9 000） whilst the coated ceramics behaved otherwise（grain growth inhibited） when sintered at an elevated temperature. Regardless of the previously studied solubility limit（about 0.1%） of BT-BA samples, BT@0.6 BT-0.4 BA maintained a maximum dielectric constant（ε（max）） ranging from 1 592 to 1 708 and tan δ less than 2% under a unit mole ratio at room temperature. In view of all these analyses, the initial nanometer sizes of the as-prepared BT-core powders combined with the increase effect of cation substitutions of Bi^（3＋） and Al^（3＋） in the shell content, induced the diffuse transition phase of BT@0.6 BT-0.4 BA composition.

关键词： MLCCs core-shell Alkoxide sol-precipitation relaxor grain boundary segregation

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Metal-organic-gel method derived (TiZrNbTa)C high-entropy nanopowders and ceramics with high performance

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Ceramics International 2025年

作者： Didi Cao Meiling Yu Qizheng Dong Lin Zhao Peng Wang Hongkang Wei Zhiyang Lv Xunyan Tan Jian Gu Yinsheng Li Zhipeng Xie Chang-an Wang Jiangxi Key Laboratory of Advanced Ceramic Materials School of Materials Science and Engineering Jingdezhen Ceramic University Jingdezhen 333403 China College of Materials Science and Engineering Nanjing Tech University Nanjing 211816 China Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications Ningbo Key Laboratory of Special Energy Materials and Chemistry Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Multi-component high-entropy carbide ceramics have emerged as a promising class of materials due to their exceptional mechanical performance, thermal stability, and chemical corrosion resistance. In this study, we employed pyromellitic acid as the carbon source and developed a metal-organic-gel method to synthesize (TiZrNbTa)C high-entropy precursors. Through carbothermal reduction at relatively low temperature of 1500°C, homogeneous single-phase face-centered cubic solid solution were obtained successfully. Subsequently, the carbide ceramics were fabricated using SPS. Characterization results demonstrate that the synthesized powders exhibit quasi-spherical morphology with uniform particle size distribution and average diameter of 57 nm. The SPS-sintered (TiZrNbTa)C high-entropy ceramics demonstrate remarkable performance, achieving relative density as high as 99.8% with uniform microstructure and particle size of 0.44 ± 0.1 μm. The material exhibited outstanding mechanical performance, with Vickers hardness and fracture toughness reaching 21.82 ± 1.5 GPa and 4.565 ± 0.5 MPa·m 1/2 , respectively.

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Comparative Investigation of Insulation Coating Mechanisms Based on Aptes for Controllable Structure and Magnetic Properties of Soft Magnetic Composites

SSRN

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SSRN 2022年

作者： Wan, Kun Liu, Wei Ding, Yue Zhu, Xu Su, Hailin Zhang, Xuebin Zou, Zhongqiu Wang, Jinzhi School of Materials Science and Engineering Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices Hefei University of Technology Hefei230009 China Engineering Research Center of High Performance Copper Alloy Materials and Processing Ministry of Education Hefei University of Technology Hefei230009 China Anhui Red Magneto-electric Technology Co. Ltd. Wuhu241002 China Huaian Engineering Research Center of Soft Magnetic Powder Cores and Devices Jiangsu Red Magnetic Materials Incorporation Huaian211700 China School of Materials and Chemistry Engineering Ningbo University of Technology Ningbo315211 China

FeNi powders were insulated with APTES by solution method and solidification method, respectively. Different coating mechanisms have been systematically studied according to analysis on microstructure, surface charge state, thermal stability of magnetic powders and magnetic properties of corresponding soft magnetic composites (SMCs). It was found that a slight amount of polysiloxane and amorphous silica would be deposited on FeNi powders in solution method, resulting in an ultra-thin insulation layer. In contrast, continuously increasing concentration of polysiloxane in reaction zone gives rise to a thick and smooth SiO2 layer in solidification method. Owing to unique growth mechanisms of solidification method, it is easy to control the thickness of SiO2 layer by adjusting the concentration of APTES, which is in favor of improving insulation quality. Accordingly, FeNi SMCs prepared in solidification method own much higher resistivity, lower μ″ and lower tan δ (particularly at high frequency), compared with samples obtained by solution method with the same volume of APTES. Besides, increasing volume of APTES in solidification method leads to the decrease of both μ′ and μ". This work may not only provide novel insights into APTES-based insulation process, but also offer powerful technique for fabricating high-frequency SMCs. © 2022, The Authors. All rights reserved.

关键词： Magnetic properties

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Hydrogenation and Ring-rearrangement of Furfural to Cyclopentanone over Ultralow-loading Ni-Pt Supported on Layered AlOOH

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Molecular Catalysis 2025年 583卷

作者： Yuxuan Wu Sen Luan Ye Liu Tianjiao Wang Minghua Dong Huizhen Liu Buxing Han Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics Center for Carbon Neutral Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 China Laboratory of Living Materials at the State KeyLaboratory of Advanced Technology for Materials Synthesisand Processing Wuhan University of Technology Wuhan Hubei 430070 China

Constructing efficient and inexpensive metal catalysts to produce cyclopentanone (CPO) from furfural (FFL) is of great significance for the utilization of biomass and synthesis of fine chemicals. The synergy of metal site and acid site is a key factor for hydrogenation of carbonyl and ring-rearrangement. Herein, AlOOH is synthesized to support base metal, nickel (1 %), and ultralow-loading platinum (0.1 %) for the complete conversion of CPO from FFL efficiently and selectively, which is difficult to achieve with common Al 2 O 3 as support. Through infrared spectroscopy characterization and H 2 -temperature-programmed reduction, Ni 1 Pt 0.1 /AlOOH has stronger adsorption of the hydroxyl group of FFL and tight bonding between metals promotes the reduction of the overall active sites. Comparison to Ni 1 /AlOOH and Pt 0.1 /AlOOH individually, the addition of 0.1 wt % Pt enables Ni to play the same role as Pt in hydrogenation while being cheaper. Layered AlOOH has higher activity than common Al 2 O 3 . The structure of layered hydroxides and the use of water as a solvent promote the hydrogenation of aldehyde group and ring-arrangement. Under the optimized conditions (150 °C, 40 bar of H 2 , and 6 h), Ni 1 Pt 0.1 /AlOOH achieves 98 % selectivity for CPO. Isotope labeling experiments revealed that H-H bond cleavage affects both hydrogenation and rearrangement, while O H bond cleavage in water impacts only rearrangement. This study not only developed an ultralow-loading bimetal catalyst for the efficient hydrogenation and ring-rearrangement of FFL to CPO, but also explored the synergy between noble metals and base metals, as well as between metal sites and acid sites.

关键词： Biosynthesis

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Scalable microfabrication of three-dimensional porous interconnected graphene scaffolds with carbon spheres for high-performance all carbon-based micro-supercapacitors

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Journal of Materiomics 2019年第2期5卷 303-312页

作者： Yiming Chen Minghao Guo Liang He Wei Yang Lin Xu Jiashen Meng Xiaocong Tian Xinyu Ma Qiang Yu Kaichun Yang Xufeng Hong Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Department of Materials Science and NanoEngineering Rice UniversityHoustonTX77005United States Faculty of Materials Science&Chemistry China University of GeosciencesWuhan430074China Department of Civil Engineering Rice UniversityHoustonTX77005United States

As one of the most important micro energy storage devices(MESDs),graphene-based micro-supercapacitors(G-MSCs)possess the advantages of excellent flexibility,long cycle life,affordability and high *** most cases,constructing three-dimensional(3D)graphene networks is widely utilized to promote the permeation of electrolyte and enhance the utilization of active *** this work,conventional freeze-drying process is utilized in the fabrication of G-MSCs to constitute 3D interconnected networks micro-electrodes,and further by regulating the composition of inks,carbon spheres(CSs)at different mass loadings are introduced into the graphene scaffolds to further increase the active sites of the *** fabricated all carbon-based MSC with the optimal mass loading of CSs(0.406 mg cm^(-2))exhibits a high specific areal capacitance of 17.01mF cm^(-2)at the scan rate of 10mV s^(-1)and a capacitance retention of 93.14%after 10000 cycles at the scan rate of 500 mV s^(-1).The proposed microfabrication process is facile and fully compatible with modern microtechnologies and will be highly suitable for large-scale production and integration.

关键词： Three-dimensional Injecting Freeze-drying Mass loading Supercapacitor

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