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Nanoscale All-Oxide-Heterostructured Bio-inspired Optoresponsive Nociceptor

Nano-Micro Letters 2020年第7期12卷 13-28页

作者： Mohammad Karbalaei Akbari Jie Hu Francis Verpoort Hongliang Lu Serge Zhuiykov Centre for Environmental and Energy Research Ghent University Global CampusIncheonSouth Korea Department of Green Chemistry and Technology Faculty of Bioscience EngineeringGhent University9000 GhentBelgium College of Information Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiPeople’s Republic of China Laboratory of Organometallics Catalysis and Ordered MaterialsState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070People’s Republic of China School of Microelectronic Fudan UniversityShanghai 200433People’s Republic of China

Retina nociceptor,as a key sensory receptor,not only enables the transport of warning signals to the human central nervous system upon its exposure to noxious stimuli,but also triggers the motor response that minimizes potential *** this study,the capability of two-dimensional all-oxide-heterostructured artificial nociceptor as a single device with tunable properties was *** designed nociceptors utilize ultra-thin sub-stoichiometric TiO2–Ga2O3 heterostructures,where the thermally annealed Ga2O3 films play the role of charge transfer controlling *** is discovered that the phase transformation in Ga2O3 is accompanied by substantial jump in conductivity,induced by thermally assisted internal redox reaction of Ga2O3 nanostructure during *** is also experimentally confirmed that the charge transfer in alloxide heterostructures can be tuned and controlled by the heterointerfaces *** demonstrate that the engineering of heterointerfaces of two-dimensional(2D)films enables the fabrication of either high-sensitive TiO2–Ga2O3(Ar)or high-threshold TiO2–Ga2O3(N2)*** hypersensitive nociceptor mimics the functionalities of corneal nociceptors of human eye,whereas the delayed reaction of nociceptor is similar to high-threshold nociceptive characteristics of human sensory *** long-term stability of 2D nociceptors demonstrates the capability of heterointerfaces engineering for e ective control of charge transfer at 2D heterostructured devices.

关键词： 2D heterostructures Artificial nociceptors Bio-inspired device Heterointerfaces engineering

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High conductive graphene assembled films with porous micro-structure for freestanding and ultra-low power strain sensors

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Science Bulletin 2020年第16期65卷 1363-1370,M0004页

作者： Zhe Wang Peng Li Rongguo Song Wei Qian Huang Zhou Qianlong Wang Yong Wang Xianci Zeng Lin Ren Shilin Yan Shichun Mu Daping He Hubei Engineering Research Center of RF-Microwave Technology and Application.School of Science Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics School of ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Graphene emerges as an ideal material for constructing high-performance strain sensors,due to its superior mechanical property and high ***,in the process of assembling graphene into macroscopic materials,its conductivity decreases ***,tedious fabrication process hinders the application of graphene-based strain *** this work,we report a freestanding graphene assembled film(GAF)with high conductivity((2.32±0.08)×105 S m-1).For the sensitive materials of strain sensors,it is higher than most of reported carbon nanotube and graphene *** advantages enable the GAF to be an ultra-low power consumption strain sensor for detecting airflow and vocal *** resistance of the GAF remains unchanged with increasing temperature(20-100℃),exhibiting a good thermal ***,the GAF can be used as a strain sensor directly without any flexible substrates,which greatly simplifies the fabrication process in comparison with most reported strain ***,the GAF used as a pressure sensor with only^4.7μW power is *** work provides a new direction for the preparation of advanced sensors with ultra-low power consumption,and the development of flexible and energy-saving electronic devices.

关键词： Strain sensor High conductivity Graphene assembled film Freestanding Ultra-low power consumption

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Ni-P cluster modified carbon nitride toward efficient photocatalytic hydrogen production

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Chinese Journal of Catalysis 2019年第6期40卷 867-874页

作者： Yajie Wang Yao Li Shaowen Cao Jiaguo Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina

Exploring low-cost cocatalyst to take over noble metal cocatalyst is still challenging in the field of photocatalytic proton ***,Ni-P alloy clusters are anchored onto the surface of polymeric carbon nitride through a chemical plating method and serve as highly efficient and stable cocatalyst toward photocatalytic proton *** effective role in promoting the charge separation and migration of the photocatalytic system is demonstrated for Ni-P clusters,which essentially enhance the photocatalytic H2-production rate to a value of 1506μmol h^–1 g^–*** performance is comparable to that of the benchmark of Pt-modified carbon *** work highlights that the Ni-P alloy could be a potential alternative to noble metal cocatalyst in the photocatalytic reactions.

关键词： Photocatalysis Hydrogen production Cocatalyst Ni-P alloy Charge transfer

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Enhanced Ferroelectricity and Spin Current Waves in M-Type Barium Hexaferrite

arXiv

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arXiv 2020年

作者： Li, Xue Nan, Nan Tan, Guo-Long State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

The intrinsic ferroelectricity and related dielectric properties of M-type Barium Hexaferrite (BaFe12O19) with excellent magnetic performance are reported in this paper. A classic electric polarization (P-E) hysteresis loop with full saturation, together with two nonlinear reversal current peaks in the I-V curve and huge change of dielectric constant in the vicinity of Curie temperature, have all demonstrated themselves as sufficient experimental evidences to verify the ferroelectricity of BaFe12O19 ceramics. It holds a large remnant polarization at 108 μC/cm2 and a suitable coercive field at 117 kV/cm. Two peaks at 194°C and 451°C in the temperature-dependent dielectric spectrum of BaFe12O19 ceramics are considered to be the phase transition from ferro- to antiferro- and antiferro- to para-electric structures. A conventional strong magnetic hysteresis loop was also observed. The magnetically induced polarization upon the BaFe12O19 ceramics was achieved in the form of alternating spin current waves. A ME-coupling voltage with an amplitude of ±23mV on an applied magnetic field at 500mT was achieved. These combined multiple functional responses of large ferroelectrics and strong ferromagnetism reveal the excellent multiferroic features of BaFe12O19, which would bring forth the great opportunity to create novel electric devices with active coupling effect between magnetic and electric orders. Copyright © 2020, The Authors. All rights reserved.

关键词： Barium compounds

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Surface carboxyl groups enhance the capacities of carbonaceous oxygen electrodes for aprotic lithiumoxygen batteries: A direct observation on binder-free electrodes

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Chinese Chemical Letters 2019年第12期30卷 2328-2332页

作者： Ming Li Liang Xiao Duo Wang Haoyang Dong Bohua Deng Jinping Liu School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

In order to achieve the high capacities of carbonaceous oxygen diffusion electrodes for aprotic lithiumoxygen batteries(Li-O2 batteries),most efforts currently focus on the design of rational porous *** few works study the surface chemistry effect that might be a critical factor influencing the capacities of carbonaceous *** addition,the surface chemistry effect is very difficult to be studied in composite electrodes due to the influences of binders and ***,we propose chemically activated carbon cloth(CACC) as an ideal model to investigate the effect of surface functional groups on the discharge capacities of carbonaceous oxygen electrodes for Li-O2 *** intrinsic surface chemistry effect on the performance of carbonaceous cathode is directly observed for the first time without the influences of binders and *** indicate that the surface carboxyl groups introduced by the chemical treatment not only function as the appropriate nucleation sites for Li2 O2 but also induce the formation of toroid-like Li2 ***,the surface carboxyl modification enhances the discharge capacities from 0.48 mAh/cm^2 of pristine carbon cloth to 1.23 mAh/cm^2 of *** work presents an effective way to further optimize the carbonaceous oxygen electrodes via surface functional group engineering.

关键词： Surface functional group Chemically activated carbon cloth Carbonaceous oxygen electrode Specific discharge capacity Lithium-oxygen battery

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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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Influence of Showerhead with Baffle on Physical Field of Hcvd Reactor

SSRN

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SSRN 2022年

作者： Li, Qizhong Zhang, Yixuan Ji, Baifeng Zhang, Song Tu, Rong Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan430070 China School of Civil Engineering and Architecture Wuhan University of Technology 122 Luoshi Road Wuhan430070 China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou521000 China Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Xiangxing Road 6 Guangdong Zhongshan528400 China

The physical field in halide chemical vapour deposition film growth is strongly affected by the structure of the reaction chamber. Notably, a highly uniform film thickness can be achieved by optimising this chamber. Therefore, after modelling a reactor, computational fluid dynamics was used in this study to measure temperatures and verify the accuracy of simulations. Based on changes in the substrate surface concentration and temperature, the feasibility of optimising the size and position of the baffle and the inclination angle of the spray holes was studied. The results revealed that on increasing the diameter of the baffle gradually, the uniformity of the substrate surface initially increased and then decreased. The most critical influence of the baffle position is the amount of gas on the substrate surface. As the inclination angle of the spray holes increased, the concentration at the centre of the substrate surface decreased, whereas that at the edge of the substrate increased. Meanwhile, the temperature field remained uniform after optimization. This study demonstrates that the showerhead and baffle can improve the physical field and that it is feasible to optimise the structure by analysing the physical field. © 2022, The Authors. All rights reserved.

关键词： Structural optimization

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Corrosion resistance and antimicrobial properties of ZnO-Ce2O3 coatings by magnetron sputtering

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Journal of Vacuum Science and technology A: Vacuum, Surfaces and Films 2025年第4期43卷

作者： Tu, Rong Qin, Zixiong Wu, Wei Zheng, Long Xu, Qingfang Gao, Tenghua Zhang, Song Dai, Honglian Goto, Takashi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou521000 China Hubei Technology Innovation Center for Advanced Composites Wuhan University of Technology Wuhan430070 China

The ZnO-Ce2O3 composite coating developed in this study significantly enhances the medical applicability of 316L stainless steel by synergistically improving corrosion resistance and antibacterial performance. Through magnetron sputtering, the ZnO-Ce2O3 composite coating reduces the corrosion current density of 316L stainless steel by an order of magnitude (from 2.935 × 10−7 to 1.278 × 10−8 A/cm2), outperforming individual ZnO or CeO2 coatings. Biological experiments demonstrated that the composite coating achieved over 98% antibacterial efficiency against Staphylococcus aureus while exhibiting low cytotoxicity toward mesenchymal stem cells, thereby addressing critical limitations of traditional stainless steel in medical devices. Additionally, the increased water contact angle (from 80° to 114°) correlated with inhibited bacterial adhesion, suggesting a dual antibacterial mechanism. This multifunctional coating strategy offers a promising solution for improving implant safety and patient outcomes. © 2025 Author(s).

关键词： Corrosion resistant coatings

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Relationship of Electrical Properties and Partical Size of Piezoelectric Ceramics Fabricated by Digital Light processing 3D Printing

Research Square

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Research Square 2021年

作者： Liu, Kai Hu, Jiaming Shi, Yusheng Zhou, Chenyang Sun, Yunfei Zhang, Song Tu, Rong Zhang, Qingqing Zhang, Yuzhen Yin, Changxia Huang, Shangyu Sun, Huajun State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Hubei Wuhan430070 China School of Materials Science and Engineering Wuhan University of Technology Hubei Wuhan430070 China State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Hubei Wuhan430074 China Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone Shandong Zibo255000 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

To improve electrical properties of BaTiO3 piezoelectric ceramics fabricated by 3D printing, effects of particle sizes was investigated on rheological and curing properties of ceramic slurries, electrical properties of BaTiO3 fabricated by Digital Light processing 3D printing method. It was found that the curing ability of ceramic slurries decreased first and then increased with the increase of particle size from 136 nm to 1486 nm, while the viscosity of the slurries kept decreasing. When the particle size in a range of submicron, the grain size of sintered ceramics decreased from 13.27 μm to 6.84 μm as particle size increasing. Immediately, the relative density, piezoelectric constant, relative permittivity and remanent polarization of sintered ceramics were measured and it turns out to reach 95.32%, 161.4 pC/N, 1512 and 7.59 uC/cm2 respectively while using the BaTiO3 powder with particle sizes of 993 nm. Finally, a cellular structural BaTiO3 ceramics was fabricated by using optimized powder and process parameters and packaged as a piezoelectric sensor, showing a good function of force-electricity conversion. These results demonstrated the feasibility of fabricating high-quality functional ceramics with designed geometry by Digital Light processing. © 2021, CC BY.

关键词： Particle size

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Hierarchy:from nature to artificial

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National Science Review 2020年第11期7卷 1623-1623页

作者： Bao-Lian Su Dongyuan Zhao State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Laboratory of Inorganic Materials Chemistry CMI University of Namur Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsLaboratory of Advanced Materials and iChEM Fudan University

Hierarchy is present everywhere in our planet, from family, society, urban construction, ecological systems to living organisms,although usually we neglect it. In the biosystem, to achieve transfer, exchange and transformation of substances and energy with extremely high efficiency and minimized energy consumption,evolution by natural selection has endowed many classes of organisms with hierarchically porous networks.

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