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Non‑Enzyme,Temperature Calibrating,and Bioactive Fiber‑based Flexible Sensors for Dopamine and Lactic Acid Detection

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advanced Fiber materials 2024年第2期6卷 501-511页

作者： Maowen Xie Guang Yao Xingyi Gan Chunhong Zhang Tianyao Zhang Qian Wang Xinqin Li Chenzheng Zhou Kangning Zhao Min Gao Taisong Pan Yuan Lin School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Medico‑Engineering Cooperation on Applied Medicine Research Center University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Shenzhen Institute for Advanced Study University of Electronic Science and Technology of ChinaShenzhen 518110China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina

Flexible electrochemical biosensors enable the in-situ monitoring and quantification of human biochemical constituents in molecular scale,spearheading and thriving the field toward precision ***,specific biorecognition elements for multiplexed biomarkers detection,temperature stability and versatility need to be improved for higher ***,we propose a bioactive sensor patch comprising a non-enzyme Co_(3)O_(4)/carbon fiber-based biorecognition element and a temperature calibration *** optimized serpentine configuration renders the sensor intimate and seamless attachment with skin,operating robustly even subjected to 40%tensile *** fiber-based sensor could selectively monitor dopa-mine and lactic acid contents based on cyclic voltammetry and amperometry,*** bioanalytical results at room temperature indicate that the electrochemical biosensor has a wide detection range(0.001–1.100 mM for dopamine and 2–35 mM for lactic acid),excellent selectivity and reproducibility(maximum error 3.2%for dopamine and 5.6%for lactic acid).In addition,temperature calibration contour maps of these two biomarkers are established in an ambient temperature range from 25 to 45℃.The continuously collected data could be aggregated and wirelessly transmitted to portable devices using an electrochemical signal transducer and an acquisition module,promising personalized and preventative health care in various scenarios.

关键词： Bioactive fiber Electrochemical selectivity Dopamine Lactic acid Temperature calibration Sensor

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Rationally Designing Anti-Poisoning Polymer Electrolyte by Electronegativity Modulation: Towards Efficient Ammonia-Cracked Hydrogen Fuel Cells

SSRN

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SSRN 2023年

作者： Shuai, Jiaqi Zhao, Shengqiu Liao, Yucong Wu, Fanglin Wang, Rui Wang, Letian Shen, Chunhui Tang, Haolin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Polymer Materials & Engineering School of Material Science & Engineering Wuhan University of Technology Wuhan430070 China Hubei Key Laboratory of Fuel Cells Wuhan University of Technology Wuhan430070 China

Ammonia as a hydrogen enrichment medium has tremendous advantages over pure hydrogen in terms of transportation and utilization. The high-efficiency anti-ammonia-poisoning membrane electrode assembly (MEA) is pivotal for the practical implementation of ammonia-resistant proton exchange membrane fuel cells (PEMFCs). As for the polymer electrolyte, which is an integral part of the proton exchange membrane (PEM) and catalytic layer (CL) binder in the MEA, structural design is an effective way to improve its resistance to ammonia poisoning. Herein, an in-depth study of sulfonimides with superacidic structures reveals that the proton dissociation energies can be altered by tuning the terminal groups with different electronegativity and enhancing the competitive adsorption of protons on Pt. Four perfluorinated backbone sulfonimides (PFSI-x (x= TSM, MSA, ESA, and iPSA)) with distinct charge delocalization were fabricated by grafting different electronegative monomers onto the perfluorosulfonyl fluoride (PFSF). The results show that PFSI-TSM possesses a higher electrostatic potential (2.69 eV) and the lowest activation energy (12.07 KJ/mol). Meanwhile, the performance of the PFSI-TSM PEM fuel cell is 40.6% higher than the PFSA at 80°C, 100% relative humidity (RH) under 100 ppm NH3, with a maximum power density of 635.2 mW/cm2. The underlying reason for enhanced performance is in virtue of the more electronegative end groups render the superacid electrolyte with higher acidity and pKa values, which change the direction of the acid dissociation equilibrium reaction on the Pt surface, enhance the competitive adsorption of protons in the MEA and reduces the probability of ammonia adsorption poisoning. The insights in charge delocalization and proton ionization construct the structure-property relationship which would provide the guidance for a rational design of PEM for ammonia-resistant fuel cells. © 2023, The Authors. All rights reserved.

关键词： Electronegativity

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Biomimetic brain-like nanostructures for solid polymer electrolytes with fast ion transport

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Science China materials 2022年第6期65卷 1476-1484页

作者： Ahmed Eissa Abdelmaoula Lulu Du Lin Xu Yu Cheng Amir AMahdy Muhammad Tahir Ziang Liu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China Mining and Metallurgical Department Faculty of EngineeringAl-Azhar UniversityCairo 11884Egypt

The intrinsic drawbacks of electrolytes and the growth of lithium dendrites limit the development of commercial lithium *** address the aforementioned challenges,a novel biomimetic brain-like nanostructure(BBLN)solid polymer electrolyte was created by manipulating the shape of the incorporated *** designed BBLN solid polymer electrolyte was created by incorporating spherical core-shell(UIO-66@67)fillers into polymer electrolyte,which is significantly different from traditional polymer-based composite ***-66@67 spherical nanoparticles are highly favorable to eliminating polymer electrolyte stress and deformation during solidification,indicating a great potential for fabricating highly uniform BBLN solid polymer electrolytes with a substantial number of continuous ***,spherical nanoparticles can significantly reduce the crystalline structure of polymer electrolytes,improving polymer chain segmental movement and providing continuous pathways for rapid ion *** a result,BBLN solid polymer electrolyte shows excellent ionic conductivity(9.2×10^(−4)S cm^(−1)),a high lithium transference number(0.74),and outstanding cycle stability against lithium electrodes over 6500 h at room *** concept of biomimetic brain-like nanostructures in this work demonstrates a novel strategy to enhance ion transport in polymerbased electrolytes for solid-state batteries.

关键词： brain structure spherical nanoparticles continuous interphase nanophase separation MOF-in-MOF

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Nitrogen‐doped tin oxide electron transport layer for stable perovskite solar cells with efficiency over 23%

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Interdisciplinary materials 2022年第2期1卷 309-315页

作者： Yanping Mo Chao Wang Xuntian Zheng Peng Zhou Jing Li Xinxin Yu Kaizhong Yang Xinyu Deng Hyesung Park Fuzhi Huang Yi‐Bing Cheng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanP.R.China Solar Hydrogen Production Lab Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryFoshanP.R.China International School of Materials Science and Engineering Wuhan University of TechnologyWuhanP.R.China Department of Materials Science and Engineering Graduate School of Semiconductor Materials and Devices EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and TechnologyUlsanRepublic of Korea

Tin oxide has made a major breakthrough in high-efficiency perovskite solar cells(PSCs)as an efficient electron transport layer by the low-temperature chemical bath deposition ***,tin oxide often contains pernicious defects,resulting in unsatisfactory ***,we develop high-quality tin oxide films via a nitrogen-doping strategy for high-efficiency and stable planar *** aligned energy level at the interface of doped SnO_(2)/perovskite,more excellent charge extraction and reduced nonradiative recombination contribute to the enhanced efficiency and ***,the power conversion efficiency of the devices based on N‐SnO_(2) film increases to 23.41% from 20.55% of the devices based on the pristine SnO_(2).The N-SnO_(2) devices show an outstanding stability retaining 97.8% of the initial efficiency after steady-state output at a maximum power point for 600s under standard AM1.5G continuous illumination without encapsulation,while less than 50% efficiency remains for the devices based on pristine SnO_(2).This simple scalable strategy has shown great promise toward highly efficient and stable PSCs.

关键词： electron transport layer N doping perovskite solar cell SnO_(2)

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Transmittance improvement and photocatalyst performance of complex environment tolerant SiO2-TiO2 thin film on photovoltaic glass

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Ceramics International 2025年

作者： Liu, Jiacheng Zhang, Mengya Zhang, Jihong Zhang, Qinghuang Han, Jianjun Xie, Jun Cao, Shaowen State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology 122 Luoshi Road Hongshan Hubei Wuhan430070 China Hepu Research Center for Silicate Materials Industry Technology 27 Huanzhu Avenue Hepu County Beihai536100 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Hongshan Hubei Wuhan430070 China

The transmittance and surface condition of photovoltaic cover glass determine the energy conversion efficiency of specific solar cells modulus. In this study, TiO2-SiO2 based complex thin film were fabricated on PV glass and the transmittance, self-cleaning, and environmental tolerance performances were investigated. TiO2-SiO2 based precursors with different SiO2 contents and additives were prepared using sol-gel method, and coated on photovoltaic glass substrates by spin-coating technique with optimized parameters for thin film fabrication. The microstructure analysis reveals the decreasing rutile TiO2 crystalline with higher SiO2 content in thin film probably due to lower TiO2 content and the formation of Ti-O-Si bond, which impedes TiO2 crystal growth. The morphologies and elements distribution of thin film proves the formation of SiO2/TiO2 core-shell like structure in thin film. The transmittance of coated photovoltaic glass in visible range is improved from 91.60 % to 93.94 %, with optimized TiO2/SiO2 ratio. Accordingly, the monocrystalline silicon solar cell conversion efficiency increases from 16.35 % to 16.68 %, about 0.33 % efficiency increase due to TiO2-SiO2 thin film coating. In addition, the thin film shows excellent photocatalyst behavior from 95.40 % methylene blue dye degradation rate under Xeon lamp irradiation, and super hydrophilic property from 0° contact angle, which confirms the excellent self-cleaning performance. The transmittance of coated photovoltaic glass recovers from less than 80 % with MB simulated pollutant contamination, to 92.97 % after degradation under Xeon lamp irradiation, and the solar cell conversion efficiency changes from 13.15 % to 16.55 %. In addition, the transmittance and solar cell conversion remain almost unchanged after low temperature freezing, and slightly decrease from first time sand scrubbing then keep stable with more cycles. The results indicate the excellent anti-pollution, low temperature tolerance, and wear

关键词： Energy conversion efficiency

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Tailoring Microstructure and Mechanical Property of Pure Tungsten Via Laser Powder Bed Fusion

SSRN

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SSRN 2023年

作者： Xiong, Zhengang Ma, Wenyou Deng, Zhaoyang Yu, Chunfeng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Institute of New Materials Guangdong Academy of Sciences Guangzhou510650 China

Microstructure tailoring is a fascinating project for material scientists that enables the mechanical properties of metallic parts to be customized. In this study, a series of laser parameter settings were implemented to manufacture dense tungsten parts and three laser travelling strategies were developed to tailor the microstructure via laser powder bed fusion (LPBF). A novel brick-stacking structure and interlocked S-shaped grains were observed in these dense samples. Among different strategy tungsten builds, typical indentation size effect (ISE) was found based on the indentation responses. As-measured indentation hardness could be thought of the sum of contribution from surface and volume. Although their ISE was similar, the contribution from plastically volume work varied, which could be primarily interpreted by rotation strategy. The rotation strategy significantly reduced the grain size and thermal stress during laser manufacturing, resulting in higher true hardness (~ 3.5 GPa). Additionally, the compression properties and associated fracture behavior of tungsten specimens manufactured by the different strategies were also compared. Therefore, these findings show that controlling laser travelling strategy during the LPBF process could be a powerful avenue to tailor the microstructure and performance of the customized components. © 2023, The Authors. All rights reserved.

关键词： Hardness

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Multifunctional additives for the enhanced performance of the doctor-blading printed perovskite solar modules

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Journal of Energy Chemistry 2025年 109卷 368-377页

作者： Linyong Tian Haoyu Cai Zhenyue Wang Yongjun Liu Juan Zhao Guodong Liu Yaqi Cheng Biqi He Hongfei Zhang Long Jiang Bofei Xue Yi-Bing Cheng Jie Zhong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 China Nanjing Aolian Light Energy Technology Co. Ltd. Nanjing Jiangsu 320115 China School of Automobile Engineering Wuhan University of Technology Wuhan Hubei 430070 China State Key Laboratory of Oil and Gas Equipment CNPC Tubular Goods Research Institute Xi’an 710077 Shaanxi China Shaanxi Provincial Key Laboratory of Clean Energy Equipment and Materials Xi’an 710077 Shaanxi China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan Guangdong 528216 China

The utilization of self-assembled monolayers (SAMs) has significantly elevated the power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs). However, the inherent hydrophobicity of these SAMs poses challenges in the subsequent printing of perovskite films in PSC upscaling. In this work, we incorporated a multifunctional additive, dimethyl suberimidate dihydrochloride (DMSCl 2 ), into the perovskite precursor to enhance the quality of the blade-coated perovskite film on the SAM interlayer. Characterizations revealed that the function groups of the imino (N–H) and methoxy (CH 3 O–) DMSCl 2 facilitate both bonding between perovskite precursor and SAM molecule (Me-4PACz), which facilitates the large-area printing of perovskite film. These interactions also provide effective passivation within the perovskite films and interface defects of PSCs. As a result, a significantly enhanced PCE from 16.62% to 20.37% was obtained for the printed perovskite solar module (93.10 cm 2 ) and 25.27% for the small device (0.09 cm 2 ). Remarkable stability was achieved with 93.3% of their initial PCE after 1000 h of continuous maximum power point (MPP) tracking. This report suggests that multifunctional additive doping provides a convenient route for the upscaling of perovskite solar cells with SAM interlayers.

关键词： Doctor-blading Homogeneity Perovskite solar cell SAMs

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Synergistic Regulation of Texture and Low-Angle Grain Boundaries Enables Mechanically Robust P-Type Bi2Te3- Based Compounds with Superior Thermoelectric Performance

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SSRN 2024年

作者： Chen, Shuo Luo, Tingting Li, Junjie Liao, Lin Liu, Yutian Yang, Zhen Zhong, Shenlong Wu, Jinsong Su, Xianli Yan, Yonggao Poudeu, Pierre Ferdinand Poudeu Zhang, Qingjie Tang, Xinfeng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Materials Science and Engineering University of Michigan at Ann Arbo Ann ArborMI48109 United States

Structural material parameters such as grain size, texture, and grain boundary species play crucial roles in anisotropic thermoelectric materials. In this study, the underlying mechanism for rational regulation of grain size, texture, and grain boundary species is uncovered. The variations in the plastic deformation capability and the atomic diffusion rates at different extrusion temperatures lead to a competition between dynamic recrystallization (DRX) and grain growth, which allows for quantitative regulation over grain size, texture, and low-angle grain boundaries (LAGBs) in the material. As a result, grain size can be effectively tuned from the nanometer scale to the micrometer scale, with the orientation factor F(110) adjusting from 0.23 to 0.41, and the concentration of LAGBs varying between 10.9% and 25.2%. The sample extruded at 673 K exhibits an average grain size of 800 nm, which contribute to the observed compressive strength of 226 MPa and bending strength of 126 MPa. Additionally, the high texture and high density of LAGBs ensure a high carrier mobility of 247 cm2 V-1 s-1. The ZT value of 1.2 enables micro-TEC modules and conventional TEC modules to achieve maximum temperature differences (ΔTmax) of 60 K and 78 K, respectively, at the hot-side temperature of 300 K. © 2024, The Authors. All rights reserved.

关键词： Compressive strength

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Groups-dependent phosphines as the organic redox for point defects elimination in hybrid perovskite solar cells

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Journal of Energy Chemistry 2021年第3期30卷 23-29页

作者： Zhengli Wu Miao Zhang Yifan Liu Yuxi Dou Yinjie Kong Lin Gao Weitao Han Guijie Liang Xiao Li Zhang Fuzhi Huang Yi-Bing Cheng Jie Zhong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200GuangdongChina Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053HubeiChina School of Materiale Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina Department of Materials Science and Engineering Monash UniversityVIC 3800Australia

Lead(Pb)^(0) and iodine(I)^(0) point defects generated during perovskite solar cell(PSC)fabrication and photoconversion form deep band energy levels as the carriers’recombination *** defects not only deteriorate device efficiency,but also facilitate chemical degradation with ion migration,resulting in restricted device ***,we present a novel type of phosphines as the point defects stabilizer for hybrid perovskite solar cells with enhanced *** phosphines with varied side groups of tributyl,trioctyl and triphenyl are exampled as the dopants in perovskite *** group dependent redox properties were observed in the perovskite film,dependent on their molecular weights and steric hinderances of *** partially oxidized tributyl phosphine(TBUP)with additional tributyl phosphine oxides(TBPO)is efficient in reduction of lead(Pb)^(0) and iodine(I)^(0) concentrations during the device fabrication and *** device with TBUP-TBPO pair showed enhanced power conversion efficiency(PCE)to 20.48% and maintain 91.7% of their initial PCEs after 500 h at 65℃ thermal ***,this work presents an efficient route of utilize the phosphine species to reduce point defects in the perovskite film,which promoting further development of novel phosphorous additives with defects stabilization,interface passivation and encapsulation for low-cost solution processed PSCs.

关键词： Redox Perovskite solar cells Phosphine organics Lead defect Stability

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Adsorptive Behavior of Methyl Blue on Graphene Aerogel:A Mechanism Study

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Journal of Wuhan University of technology(materials Science) 2021年第2期36卷 239-242页

作者： SONG Xuyan HE Yunlu PAN Xi WEI Min LI Ran ZHOU Xiaoyu ZHENG Ying LI Junsheng TANG Haolin Technology Centre of Hubei China Tobacco Industry Co. Ltd.Wuhan 430051China College of Urban Construction Wuchang Shouyi UniversityWuhan 430064China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Graphene aerogel was synthesized and used for the removal of methyl blue from aqueous *** effect of solution pH,temperature and adsorption time on the adsorption performance of the graphene aerogel was studied *** addition,investigations were also performed to determine the nature of *** experimental results show that graphene aerogel is a highly efficient adsorbent for the treatment of methyl blue in aqueous *** addition,the adsorption of methyl blue proceeds through a single layer physical adsorption on the graphene *** findings herein are useful for the future development of adsorbent for in water.

关键词： graphene aerogel adsorption methyl blue mechanism

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