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An ultralight,flexible,and biocompatible all-fiber motion sensor for artificial intelligence wearable electronics

npj Flexible Electronics 2022年第1期6卷 235-242页

作者： Sen Lin Shuang Hu Wei Song Miaoqing Gu Junchen Liu Jianan Song Zhenglian Liu Ziwei Li Kun Huang Yufeng Wu Ming Lei Hui Wu School of Physical Science and Technology Guangxi UniversityNanning 530004China Advanced Institute for Brain and Intelligence Guangxi UniversityNanning 530004China State Key Laboratory of Information Photonics and Optical Communications and School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

New-generation human body motion sensors for wearable electronics and intelligent medicine are required to comply with stringent requirements in terms of ultralight weight,flexibility,stability,biocompatibility,and extreme ***,conventional sensors are hard to fulfill all these criteria due to their rigid structure,high-density sensing materials used as the constituents,as well as hermetical and compact assembly ***,we report an ultralight sensing material based on radial anisotropic porous silver fiber(RAPSF),which has been manufactured by phase separation and temperature-controlled grain growth strategy on a modified blow-spinning *** resistance of RAPSF could be dynamically adjusted depending on the deflected ***,an all-fiber motion sensor(AFMS)with an ultra-low density of 68.70 mg cm^(−3) and an overall weigh of 7.95 mg was fabricated via layer-by-layer *** sensor exhibited outstanding flexibility,breathability,biocompatibility,and remarkable body motion recognition ***,the AFMS was shown to have great potential as an artificial intelligence throat sensor for throat state identification at the accuracy above 85%,allowing one to spot the early onset of the viral throat illness.

关键词： fiber artificial motion

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Fine-Tuning of Structural Distortion and Magnetic Anisotropy by Organosulfonates in Octahedral Cobalt(Ⅱ)Complexes

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Chinese Journal of Chemistry 2022年第18期40卷 2193-2202页

作者： Dong Shao Fang-Xue Xu Lei Yin Hong-Qing Li Yu-Chen Sun Zhong-Wen Ouyang Zhen-Xing Wang Yi-Quan Zhang Xin-Yi Wang State Key Laboratory of Coordination Chemistry Collaborative Innovation Center of Advanced MicrostructuresSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingJiangsu210023 China Hubei Key Laboratory of Processing and Application of Catalytic Materials College of Chemistry and Chemical EngineeringHuanggang Normal UniversityHuanggangHubei438000 China Jiangsu Key Laboratory for NSLSCS School of Physical Science and TechnologyNanjing Normal UniversityNanjingJiangsu210097 China Wuhan National High Magnetic Field Centre Huazhong University of Science and TechnologyWuhanHubei430074 China

Precise modulation of the magnetic anisotropy of metal ions remains highly important for the development of high–performance single-molecule magnets(SMMs).We herein reported the synthetic,structural,spectral,magnetic,and computational studies on four mononuclear Co^(Ⅱ) complexes in a distorted octahedral *** change of the organosulfonate anions triggers significant modification of the distorted octahedral CoN6 coordination sphere,which enables us to tackle the influence of the structural distortion on the magnetic anisotropy in these *** measurements revealed that the four complexes possess easy–plane magnetic anisotropy with large and positive zero-field splitting parameters,which decrease with the increasing distortion of the pseudo–octahedral Co^(Ⅱ) coordination *** correlation was further confirmed by high–frequency/–field EPR(HF–EPR)spectra and theoretical *** magnetic susceptibility measurements indicate that these complexes both exhibit slow magnetic relaxation under an external dc field,indicating the field-induced single-ion magnets(SIMs)of the four *** results indicate that structural distortion plays an important role in the magnetic anisotropy of CoⅡcomplexes and should be carefully considered in the design of molecular complexes with high magnetic anisotropy.

关键词： Cobalt Solid-state structures Magnetic properties Single-molecule magnets /Magnetic anisotropy

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One-Step Electrodeposition of Amorphous Mosx - CDS on Ti Mesh as a Monolithic Heterostructured Photocatalyst for Enhanced Photocatalytic H2 Evolution

SSRN

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SSRN 2022年

作者： Zhang, Jingtao Zeng, Dongni Xu, Changfu Hu, Wenchao Liu, Peng Cao, Shaowen Chen, Ying School of Materials and Energy Guangdong University of Technology Guangzhou510006 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

Exploiting large-size monolithic semiconductor photocatalyst sheet/layer with superior photocatalytic hydrogen production performances through facile and scalable methods is an important research direction in promoting the practical application of traditional particulate semiconductor photocatalyst, yet challenging. Here we constructed an amorphous MoSx - CdS monolithic heterostructured photocatalyst sheet (a-MoSx - CdS/Ti) with maximal size of ~100 cm2 through a one-step potentiostatic electrodeposition process of 5 minutes on titanium mesh used as photocatalyst support. Owing to synergic effects of favorable light absorption, abundant active sites for proton reduction, effective photogenerated charge separation and robust structural integrity, the a-MoSx - CdS/Ti not only exhibits an optimized H2 generation rate of 4476 μmol h−1 g−1, but also demonstrates excellent operability during photocatalytic H2 generation and subsequent recycling processes, greatly improving its applicability. This work presents a straightforward and practical route to produce efficient, robust and easily operable photocatalytic H2 production system which expectantly finds promising practical applications in photocatalysis, photoelectrocatalysis and beyond. © 2022, The Authors. All rights reserved.

关键词： Cadmium sulfide

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气体灌注超润湿膜分离溶质

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Science Bulletin 2023年第24期68卷 3111-3113页

作者：董莹李静阳晓宇 Department of Forensic Medicine Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials School of Chemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing&Shenzhen Research Institute&Laoshan Laboratory Wuhan University of TechnologyWuhan 430070China School of Engineering and Applied Sciences Harvard UniversityCambridge MA 02138USA

Membranes,including those that are based on nanofiltration and reverse osmosis(RO),have become important components of systems used for efficient removal of ions and small molecules from *** containing nanofiltration membranes are employed to separate divalent ions and>200 g mol-1molecules utilizing size-and charge-exclusion mechanisms.

关键词： mechanisms utilizing charge

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Cellulose Composite Kvo Films and Self-Healing Loc Gel Electrolyte for Multifunctional Flexible Electrochromic Device

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SSRN 2023年

作者： Sun, Shuokun Xia, Xiaoyan Gao, Mingrui Wei, Wei Cui, Shichuang Zhu, Quanyao School of Materials Science and Engineering Wuhan University of Technology Hubei Wuhan430070 China State Key Laboratory of Advanced Technology For Materials Synthesis and Processing Hubei Wuhan430070 China Department of Physics Changji University Xinjiang Changji831100 China

Electrochromic materials have attracted intensive attention due to friendly relationship to the environment, energy and user experience. Layered vanad-based compounds are considered as one kind of the most promising electrochromic materials. However, they are plagued by the appearance of ion channel collapse, capacity loss, and aqueous electrochromic materials exhibit poor cycling stability. Herein, we report on KV3O8·0.75H2O (KVO) and further complexed it into a network formed by linear methylcellulose, realizes a stand-alone cellulose composite KVO electrochromic film. K doping destroys the preferred orientation of V2O5 (002) crystal plane and expands the interplanar spacing to 6.9 Å. Cellulose significantly increases the viscosity of the sol (6 times) and acts as a "strengthener". Firstly, the electrochromic properties of methylcellulose composite KVO film (KVO/MC) were studied in 1 mol L-1 LiClO4 nonaqueous electrolyte. The film can freely switch between green-yellow and orange-red, and can retain more than 67% of the charge capacity after 2000 cycles. We further introduce flexible electrochromic devices assembled from KVO/MC films. Development of a self-healing LOC-based gel electrolyte composed of Ethene, 1-chloro-1,2,2-trifluoro-, polymer with 1,1- difluoroethene (P(CTFE-VDF)) and Li+ electrolyte, which is highly consistent with the device. It has a high colouring efficiency of 78.8 cm2 C -1 , achieving fast response (≤5.6 s) and long service life (>77% of the charge capacity and 70% of the optical contrast after 10000 cycles). This design shows great application potential in manufacturing large-area (20×30 cm2 ) flexible devices. © 2023, The Authors. All rights reserved.

关键词： Electrochromism

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A layer-by-layer optimization strategy to constitute optimal material distribution of 3D spatial shells by stacking deformation-controlled 2D plain layers

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Applied Mathematical Modelling 2025年 147卷

作者： Ding, Jiang Xing, Zhi Zeng, Ziyang Xie, Kunliang Guangxi Key Laboratory of Manufacturing System & Advanced Manufacturing Technology School of Mechanical Engineering Guangxi University Nanning530004 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi University Nanning530004 China National Engineering Research Center of Novel Equipment for Polymer Processing The Key Laboratory of Polymer Processing Engineering of the Ministry of Education Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou510641 China

The stiffness of a shell is conclusively influenced by the distribution of its material. To obtain the optimal material distribution of 3D spatial shells at a reasonable computational cost, this paper proposes a layer-by-layer optimization strategy with controllable deformation. In this strategy, the 3D spatial shell is divided into finite layers in the thickness dimension, and the deformations of each layer are constrained by the presupposed target volume in the matching optimization cycle. During the optimization cycle, to minimize the computational cost, we use a dimension-reduced level set method (DR-LSM), wherein the optimal 2D plane layers of the 3D spatial shell are iterated in the 2D domain using a uniform initial design. The optimized 2D plane layers are sequentially stacked to construct the optimal material distribution of the 3D spatial shell. Both numerical calculations and experimental results demonstrate that the proposed strategy successfully achieves an optimal material distribution for 3D spatial shells while preserving their original geometric characteristics and eliminating cavity structures. Notably, the stiffness of shells with different curvatures is significantly enhanced without altering its volume and mass, proving the stability and effectiveness of this strategy. © 2025

关键词： Convergence of numerical methods

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Pre-Oxidation for Enhanced Resistance of Afa Steel to High-Temperature Molten Salt Corrosion

SSRN

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SSRN 2024年

作者： Jiang, Haocheng Yu, Haicun Gao, Yunteng Zhan, Faqi Xu, Shipeng La, Peiqing State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals School of Materials Science and Engineering Lanzhou University of Technology Lanzhou730050 China Lanzhou University of Technology China

This study employs vacuum induction melting followed by pre-oxidation strategy to develop an alumina-forming austenitic (AFA) steel, aiming to enhance its resistance against corrosion in molten salt environments. The corrosion behavior of the steel, both before and after pre-oxidation, is investigated in a ternary carbonate molten salt at 650°C. The results reveal that pre-oxidation markedly decreases the corrosion rate from 1000.72 μm/year to 204.99 μm/year. This reduction is attributed to the formation of a protective layer composed of Al2O3 and LiAlO2 oxides. It highlights the effectiveness of pre-oxidation in improving the durability of materials against corrosive damage in high-temperature molten salt environments. © 2024, The Authors. All rights reserved.

关键词： Alumina

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Polymersome formation by solvent annealing-induced structural reengineering under 3D soft confinement

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Nano Research 2021年第12期14卷 4644-4649页

作者： Xi Mao Hao Li Jinwoo Kim Shuai Deng Renhua Deng Bumjoon J.Kim Jintao Zhu Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education(HUST) and State Key Laboratory of Materials Processing and Die&Mold TechnologySchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan430074China Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon34141Republic of Korea

A solvent annealing-induced structural reengineering approach is exploited to fabricate polymersomes from block copolymers that are hard to form vesicles through the traditional solution self-assembly *** specifically,polystyrene-b-poly(4-vinyl pyridine)(PS-b-P4VP)particles with sphere-within-sphere structure(SS particles)are prepared by three-dimensional(3D)soft-confined assembly through emulsion-solvent evaporation,followed by 3D soft-confined solvent annealing upon the SS particles in aqueous dispersions for structural engineering.A water-miscible solvent(e.g.,THF)is employed for annealing,which results in dramatic transitions of the assemblies,e.g.,from SS particles to *** approach works for PS-b-P4VP in a wide range of block ***,this method enables effective encapsulation/loading of cargoes such as fluorescent dyes and metal nanoparticles,which offers a new route to prepare polymersomes that could be applied for cargo release,diagnostic imaging,and nanoreactor,etc.

关键词： polymersome block copolymer three-dimensional(3D)confinement self-assembly solvent annealing

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Micro-arc plasma decomplexation of Cu-EDTA by TC4 liquid-phase discharge: underneath mechanisms

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Environmental monitoring and assessment 2025年第7期197卷 748页

作者： Liu Yuchang Wang Sheng Liu Haoming Cheng Xin Qin Huiyi Wang Haoxv Zhang Yali School of Materials Science and Engineering Lanzhou University of Technology Lanzhou 730050 China. Jiangyou Changcheng Special Steel Co. Ltd. of Pangang Group Jiangyou 621700 China. School of Materials Science and Engineering Lanzhou University of Technology Lanzhou 730050 China. shengwang@***. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology Lanzhou 730050 China. shengwang@***. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology Lanzhou 730050 China.

The paper discusses a method to treat wastewater (Cu-EDTA, copper ethylenediamine tetra acetic acid) using micro-arc plasma by combining micro-arc oxidation technology and advanced oxidation technology from the fields of material surface treatment and environmental engineering. The aim is to change copper ions from a complex state to a free state. The decomplexation rate was up to 73.82%, and the mineralization rate was up to 32.7% for the samples after 100 min of treatment with micro-arc plasma. Cu-EDTA decomplexation is divided into the decomposition of EDTA and free copper ion reactions. The active substance reacts with Cu-EDTA to generate intermediates, leading to the mineralization of EDTA through continuous decomposition and synthesis. Meanwhile, copper ions complete the decomplexation and react with other anions in the solution and on the anode surface. This study not only provides a new wastewater treatment technology but also improves the theoretical study of micro-arc plasma on organic matter.

关键词： Cu-EDTA Electric discharge plasma Heavy metal complex Industrial wastewater TC4 Titanium alloy

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Oscillation Modes of Weld Pool in Stationary GTA Welding Using Structure Laser Method

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Chinese Journal of Mechanical Engineering 2021年第5期34卷 243-258页

作者： Xingpei Wu Jiankang Huang Jing He Shien Liu Guangyin Liu Ding Fan School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050China Department of Mechanical Energy Engineering Southern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of TechnologyLanzhou 730050China

Researchers have recently attempted to monitor pool oscillations using the three-dimensional laser vision ***,the deficiency of simulation software will result in significant capital *** simulations and experiments are performed in this study,and the Bessel equation is used to analyze the oscillation mode of a weld *** laser dot matrix images of(0,1),(1,1),(2,1),and(0,2)oscillation modes at different times are obtained via structured laser optical measurement *** oscillation mode of a stationary gas tungsten arc weld pool is analyzed based on laser dot matrix images obtained from a structure laser *** show that the simulated laser dot matrix images are consistent with the experiment *** oscillation mode of the weld pool can be recognized based on the laser dot matrix *** study not only provides conditions for assessing the penetrating state of a weld pool,but also enable a further understanding of the oscillation mode of a weld pool and the development of more effective observation methods and measurement tools to effectively control and improve welding quality.

关键词： Weld pool surface GTA welding Bessel function Oscillation mode Geometric optics

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