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Strongly enhancing the energy storage properties and stability of amorphous BaTiO3 thin films via ions doping

Scripta materialia 2025年 265卷

作者： Chang, Ruiling Yao, Zhonghua Xing, Yutong Wang, Jun Hao, Hua Cao, Minghe Liu, Hanxing State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China International School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya572000 China

Amorphous thin films with high power density and breakdown strength satisfy the needs of advanced power electronic systems. Nonetheless, improving the energy storage density of amorphous films is critical for addressing the growing demand for electricity. We apply high spontaneous polarization BaTiO3 as the main component to make (1-x)Ba(Ti0.99Mn0.02)O3-xBiFeO3((1-x)BTM-xBF) thin films. Doping BiFeO3 (BF) synergistically boosts polarization. The introduction of amorphous phases and Mn ions enhances the breakdown strength. The results demonstrate that, at x = 0.10, the film can achieve both a high efficiency of 80.3 % and an excellent energy storage density of 111.3 J cm-3. Moreover, the film has a strong thermal stability within a broad range of 20 to 160 °C, as well as the cycling reliability is as high as 105 times. The present study offers a practical approach to develop film capacitors with outstanding energy storage capabilities. © 2025 Acta materialia Inc.

关键词： Amorphous films

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The Impact Failure and Energy Dissipation Mechanism of Polyethylene Laminates

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Journal of Wuhan University of technology(materials Science) 2019年第3期34卷 723-727页

作者： SHU Zaiqin ZHANG Jinyong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Institute of Material Science and EngineeringWuhan University of TechnologyWuhan430070China System Design Institute of Hubei Aerospace Technology Academy Wuhan430040China

The damage mechanism and energy dissipation of the Polyethylene (PE) laminates in impacting was investigated. It was found that the dissipated energy of the impacting sphere bullet by the 1-mmthick PE plate firstly increased with the impacting velocity increasing from 50 to about 300 m/s, and then decreased with the impacting velocity increasing up to 600 m/s. According to the measured deformation and damage degree, a numerical simulation of the dissipated energy was made and obvious offset was found with the experimental results. The quasi-static properties of the PE fibers, decreasing with increase in tensile velocity, may be the main reason for the offset.

关键词： polyethylene ballistic impact energy dissipation strain rate

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Ceramizable Cf/BPR composites with enhanced oxidation resistance up to 1670 °C

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Ceramics International 2025年

作者： Li, Junguo Zhao, Chenhan Jiang, Feng Zhang, Shiquan Yang, Suohui Xiang, Qianqian Li, Meijuan zhang, Jian Shen, Qiang School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China School of Chemistry Chemical Engineering and Life Science Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

Ceramizable carbon fiber/boron-modified phenolic resin (Cf/BPR) composites are cost-effective and suitable for fabricating large-scale components, making them vital for thermal protection systems in aerospace vehicles. However, their thermal resistance requires further improvement. This study investigates the modification of Cf/BPR composites using ZrSi2, Al, and mica to enhance their thermal resistance. High-temperature static oxidation and oxyacetylene ablation tests are conducted to evaluate their high-temperature performance. The role of each filler on oxidation resistance is discussed. The results reveal that when ZrSi2 is added at 33.75 phr, Al at 3.75 phr, and mica at 5 phr, the prepared composite exhibits a flexural strength of 56 MPa after 20 min of static oxidation at 1600 °C, with excellent protection of the carbon fibers. After oxidation at 1670 °C, the flexural strength remains at 45 MPa, despite some degree of carbon fiber ablation. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Carbon fibers

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PTCDA/CuS cathode enabling stable sulfide-based all-solid-state batteries

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Journal of Materiomics 2025年

作者： Zhixing Wan Shuo Wang Yahao Mu Ruihua Zhou Hang Liu Tingwu Jin Di Wu Jianlong Xia Ce-Wen Nan Center of Smart Materials and Devices State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Material Science and Engineering Wuhan University of Technology Wuhan 430070 China School of Chemistry Chemical Engineering and Life Science Wuhan University of Technology Wuhan 430070 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Organic cathode materials have garnered significant attention for their potential application in lithium-ion batteries due to their lightweight nature, tunable structures, high energy density, and environmental friendliness. However, the dissolution of organic cathodes in liquid electrolytes often leads to poor cycling stability, which limits their practical application. In this study, a composite cathode was prepared by ball milling the PTCDA/CuS (perylene-3,4,9,10-tetracarboxylic dianhydride, PTCDA) with a sulfide-based electrolyte and carbon nanotubes. By optimizing the component ratios, the assembled all-solid-state batteries (ASSBs) show a high discharge capacity of 210 mA⸱h/g after 200 cycles without any capacity degradation at a current density of 33.0 mA/g. Through comprehensive characterization techniques including X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), the coordination of Cu 2+ and the formation of sulfur-linked polymers during the charge-discharge processes are elucidated, and the reversibility of the electrochemical reactions has been confirmed. This work highlights the excellent compatibility between organic cathodes and sulfide-based electrolytes, providing a new way for the development of high-performance ASSBs with high energy density and extended lifespan.

关键词： PTCDA/CuS lithium argyrodite organic cathode all-solid-state battery

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Triethanolamine-mediated photodeposition formation of amorphous Ni-P alloy for improved H2-evolution activity of g-C3N4

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Science China materials 2020年第11期63卷 2215-2227页

作者： Huogen Yu Jiachao Xu Duoduo Gao Jiajie Fan Jiaguo Yu Department of Chemistry School of ChemistryChemical Engineering and Life SciencesWuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Developing efficient,stable,and low-cost novel electron-cocatalysts is crucial for photocatalytic hydrogen evolution ***,amorphous Ni-P alloy particles were successfully modified onto g-C3N4 to construct the Ni-P/g-C3N4 photocatalyst through a simple and green triethanolamine(TEOA)-mediated photodeposition *** was found that the TEOA could serve as an excellent complexing agent to coordinate with Ni2+to form[Ni(TEOA)]^2+complex,which can promote the rapid and effective deposition of amorphous Ni-P alloy on the g-C3N4 *** tests suggest that the hydrogen-evolution performance of gC3N4 can be greatly promoted through integrating amorphous Ni-P ***,the Ni-P/g-C3N4(5 wt%)exhibits the superior H2-generation activity(118.2μmol h^-1g^-1),which is almost 35.8 times that of bare ***,the amorphous Ni-P alloy cocatalyst can also serve as the general hydrogen-production cocatalyst to greatly enhance the photocatalytic performance of traditional semiconductor materials such as Ti O2 and Cd *** on the present results,the mechanism of the amorphous Ni-P alloy as the high-efficiency electron transfer medium was proposed for the boosted H2-generation *** present facile route may broaden the horizons for the efficient development of highly active cocatalysts in photocatalytic field.

关键词： photocatalysis H2evolution g-C3N4 amorphous NiP alloy photodeposition

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Fe-N-C Single-Atom Nanozyme for Ultrasensitive, On-Site and Multiplex Detection of Mycotoxins Using Lateral Flow Immunoassay

SSRN

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SSRN 2022年

作者： Cai, Xinfa Ma, Fei Jiang, Jun Yang, Xianglong Zhang, Zhaowei Jian, Zelang Liang, Meijuan Li, Peiwu Yu, Li Oil Crops Research Institute Chinese Academy of Agricultural Sciences Wuhan430062 China Key Laboratory of Biology and Genetic Improvement of Oil Crops Ministry of Agriculture and Rural Affairs Wuhan430062 China Key Laboratory of Detection for Mycotoxins Ministry of Agriculture and Rural Affairs Wuhan430062 China Ministry of Agriculture and Rural Affairs Wuhan430062 China Quality Inspection and Test Center for Oilseeds Products Ministry of Agriculture and Rural Affairs Wuhan430062 China Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Material Science and Engineering Wuhan430070 China

Sensitive, on-site and multiple detection of mycotoxins is a vital early-warning tool to minimize food losses and protect human health and the environment. Although paper-based lateral flow immunoassay (LFIA) have been extensively applied in mycotoxins monitoring, low-cost, portable, ultrasensitive and quantitative detection is still a formidable challenge. Herein, a series of Fe-N-C single-atom nanozymes (SAzymes) were synthesized and systematic characterized. The optimal Fe-N-C SAzyme with highly efficient catalytic performance was successfully used as both label and catalyst in lateral flow immunoassays for mycotoxin detection. By taking advantage of the catalytic amplified system, the qualitative and quantitative detection can be easily and flexibly done via observing the test lines by naked eyes or a smartphone, with the LODs of 2.8 and 13.9 pg mL -1 for AFB 1 and FB 1 , which were respectively over 700- and 71000-fold lower than the maximum limit set by the European Union. Besides, underlying catalytic mechanisms and the active sites of the Fe-N-C SAzyme are also investigated by DFT simulation. This work not only provided a promising detection strategy for the application of advanced SAzymes but also offers experimental and theoretical guidelines to understand the active centers of Fe-N-C SAzymes and the catalytic process. © 2022, The Authors. All rights reserved.

关键词： Mycotoxins

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Erratum: Additive-mediated intercalation and surface modification of MXenes (Chem. Soc. Rev. (2022) DOI: 10.1039/d0cs01487g)

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Chemical Society Reviews 2022年

作者： Zou, Jing Wu, Jing Wang, Yizhou Deng, Fengxia Jiang, Jizhou Zhang, Yizhou Liu, Song Li, Neng Zhang, Han Yu, Jiaguo Zhai, Tianyou Alshareef, Husam N. School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development Utilization of Ministry of Education Wuhan Institute of Technology Hubei Wuhan430205 China Key Laboratory of Rare Mineral Ministry of Natural Resources Geological Experimental Testing Center of Hubei Province Hubei Wuhan430034 China Thuwal23955-6900 Saudi Arabia State Key Laboratory of Urban Water Resources and Environment School of Environment Harbin Institute of Technology Harbin150090 China School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing210044 China Key Laboratory for Organic Electronics & Information Displays Institute of Advanced Materials Nanjing University of Posts and Telecommunications Nanjing210023 China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha410082 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Hubei Wuhan430070 China Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics Key Laboratory of Optoelectronic Devices and Systems Ministry of Education and Guangdong Province Shenzhen University Shenzhen518060 China State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China

In the original article, the author affiliation for Jiaguo Yu was incorrect. The correct affiliations are as shown here. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to a...

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Alloying effect enhanced bimetallic Ni-Fe/TiO 2 catalysts for selective hydrogenation of 1,3-butadiene in the presence of an excess of propylene

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Molecular Catalysis 2023年 550卷

作者： Wei-Hao Wang Bo Jiang Zhao Wang Ya Chen Yao Li Ting-Ting Luo Feng Cheng Bao-Lian Su The State Key Laboratory of Advanced Technology for Material Synthesis and processing Wuhan University of Technology Wuhan 430070 China Center for Materials Research and Analysis Wuhan University of Technology Wuhan 430070 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 Rue de Bruxelles B-5000 Namur Belgium

Nickel is a promising Pd alternative candidate for selective alkynes/alkadienes hydrogenation owing to its high catalytic activity and cheap price, however, with fatal restrictions of low alkenes selectivity and inferior stability caused by its strong olefin adsorption and the cleavage of carbon-carbon bond. Herein, controlled amounts of iron were introduced into nickel as catalytic assistant by deposition-precipitation with urea on TiO 2 support. Using 1,3-butadiene in an excess of propylene to simulate the industrial process, the additional Fe shows a significant enhancement to the catalytic performance of Ni, i.e., Ni-Fe/TiO 2 with Ni/Fe atomic ratio 1:0.33 shows >94% of 1,3-butadiene conversion and >95% of alkenes selectivity after above 200 h of time on stream, superior to that of commercial Pd/Al 2 O 3 catalyst. Further in-situ analysis reveals that the alloying effect from the formation of Ni-rich Ni-Fe intermetallic compound (e.g., Ni 3 Fe alloy) enlarges the distance between two Ni active sites and enriches the electronic density of Ni sites, resulting in a weak adsorption of butenes products for offering such excellent catalytic performance. To the best of our knowledge, this is the first in-depth exploration on supported Ni-Fe bimetallic catalyst for selective hydrogenation of light alkynes/alkadienes. It shows a high potential for replacing the commercial Pd-based catalysts.

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Preface to the Special Issue on Photocatalytic H2 Production and CO2 Reduction

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Chinese Journal of Catalysis 2020年第1期41卷 1-1页

作者： Jiaguo Yu Jian Ru Gong Quanjun Xiang State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology National Center for Nanoscience and Technology State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of China

Jointly hosted by Wuhan University of technology,Changsha University and Kent State University,the 3rd International Workshop on Graphene and C3N4-based Photocatalysts(IWGCP3)was held at Wuhan University of technology,Wuhan,China on March 23-26,*** workshop was sponsored by National Natural Science Foundation of China(NSFC),Wuhan University of technology,Changsha University,Beijing Perfectlight and *** 300 colleagues from all over the world participated in this workshop,which featured 8 plenary lectures,12 keynote lectures,22 invited lectures,13 oral lectures and 157 *** ten posters enjoyed recognition by the scientific committee during the workshop.

关键词： Wuhan Perfect workshop

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Bronze TiO2 as a cathode host for lithium-sulfur batteries

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能源化学 2020年第9期48卷 259-266页

作者： Wenjing Dong Di Wang Xiaoyun Li Yuan Yao Xu Zhao Zhao Wang Hong-En Wang Yu Li Lihua Chen Dong Qian Bao-Lian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 Hubei China State Key Laboratory of Silicate Material for Architectures Wuhan University of Technology Wuhan 430070 Hubei China Beijing National Laboratory of Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Institute of Chemical Materials Chinese Academy of Engineering Physics Mianyang 621900 Sichuan China College of Chemistry and Chemical Engineering Central South University Changsha 410083 Hunan China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur B-5000 Namur Belgium

Lithium-sulfur batteries (LSBs) are very promising for large-scale electrochemical energy ***,dissolution and shuttling of lithium polysulfides (LiPSs) intermediates have severely affected their overall electrochemical properties and limited their practical *** polar cathode hosts that can effectively bind LiPSs and simultaneously promote their redox conversion is crucial for realizing high-performance ***,we report bronze TiO2 (TiO2-B) nanosheets (-5 nm in thickness) chemically bonded with carbon as a novel multifunctional cathode host for advanced *** lobservation and first-principles density functional theory (DFT) calculations reveal that the TiO2-B with exposed (100) plane and Ti3+ ions exhibited high chemical affinity toward polysulfides and effectively confined them at ***,Ti3+ ions and interface coupling with carbon promoted electronic conductivity of the composite cathode,leading to enhanced redox conversion kinetics of LiPSs during charge/***,the as-assembled TiO2-B/S cathode manifested high capacity (1165 mAh/g at 0.2 C),excellent rate capability (244 mAh/g at 5 C) and outstanding cyclability (572 mAh/g over 500 cycles at 0.2 C).This work sheds insights on rational design and fabrication of novel functional electrode materials for beyond Li-ion batteries.

关键词： Titanium dioxide Cathode Polysulfides Shuttle effect Lithium-sulfur batteries Electrochemistry Density functional theory

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