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Au nanoclusters anchored on TiO_(2) nanosheets for high-efficiency electroreduction of nitrate to ammonia

Nano Research 2024年第3期17卷 1209-1216页

作者： Miaosen Yang Tianran Wei Jia He Qian Liu Ligang Feng Hongyi Li Jun Luo Xijun Liu School of Chemical Engineering Northeast Electric Power UniversityJilin 132012China Nanchang Institute of Technology Nanchang 330044China State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830017China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China Institute for New Energy Materials and Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Institute for Advanced Study Chengdu UniversityChengdu 610106China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Guangzhou Panyu Polytechnic Guangzhou 511483China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaLonghua DistrictShenzhen 518110China

Electrocatalytic nitrate reduction reaction(NO_(3)RR)offers a unique rationale for green NH_(3) synthesis,yet the lack of high-efficiency NO_(3)RR catalysts remains a great *** this work,we show that Au nanoclusters anchored on TiO_(2) nanosheets can efficiently catalyze the conversion of NO_(3)RR-to-NH_(3) under ambient conditions,achieving a maximal Faradic efficiency of 91%,a peak yield rate of 1923μg·h^(-1)·mgcat.-1,and high durability over 10 consecutive cycles,all of which are comparable to the recently reported metrics(including transition metal and noble metal-based catalysts)and exceed those of pristine TiO_(2).Moreover,a galvanic Zn-nitrate battery using the catalyst as the cathode was proposed,which shows a power density of 3.62 mW·cm^(-2) and a yield rate of 452μg·h^(-1)·mgcat.-*** simulations further indicate that the atomically dispersed Au clusters can promote the adsorption and activation of NO_(3)-species,and reduce the NO_(3)RR-to-NH_(3) barrier,thus leading to an accelerated cathodic *** work highlights the importance of metal clusters for the NH_(3) electrosynthesis and nitrate removal.

关键词： NH3 electrosynthesis Zn-nitrate battery Au nanoclusters nitrate reduction reaction(NRR) TiO_(2)nanosheets

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Emerging Atomically Precise Metal Nanoclusters and Ultrasmall Nanoparticles for Efficient Electrochemical Energy Catalysis:Synthesis Strategies and Surface/Interface Engineering

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Electrochemical Energy Reviews 2024年第1期7卷 305-332页

作者： Mingjie Wu Fang Dong Yingkui Yang Xun Cui Xueqin Liu Yunhai Zhu Dongsheng Li Sasha Omanovic Shuhui Sun Gaixia Zhang State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200HubeiChina Department of Chemical Engineering McGill UniversityMontrealQC H3A 0C5Canada Institut National de la Recherche Scientifique(INRS) Centre Energie Materiaux TelecommunicationsVarennesQC J3X 1P7Canada Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials ChinaCollege of Materials and Chemical EngineeringThree Gorges UniversityYichang 443002JiangxiChina Department of Electrical Engineering École de Technologie Supérieure(ÉTS)MontrealQC H3C 1K3Canada

Atomically precise metal nanocluster and ultrasmall nanoparticle catalysts have garnered significant interest in electrocatalysis applications due to their unique geometric and electronic *** an intermediate state between single-atom catalysts(SACs)and nanoparticles in size,nanoclusters with specific low nuclearity provide designated metallic states with multiple atoms or surface sites for the adsorption and transformation of reactants/*** unique catalytic properties of nanoclusters offer a novel platform for designing effective and efficient electrocatalysts,potentially surpassing the SACs in certain catalytic *** review summarizes and discusses the latest progress of nanoclusters and ultrasmall nanoparticles for various electrocatalysis applications,including oxygen reduction reaction(ORR),oxygen evolution reaction(OER),CO_(2) reduction reaction(CO_(2)RR),nitrogen reduction reaction(NRR),hydrogen evolution reaction(HER),various chemicals oxidation reaction(COR),***,this review highlights surface/interface chemical modification strategies and structure-properties relationships,drawing from the atomic-level insights to determine electrocatalytic ***,we present the challenges and opportunities associated with nanocluster or ultrasmall nanoparticle electrocatalysts.

关键词： Electrocatalysts Nanoclusters Ultrasmall nanoparticles Surface Interface engineering Single-atom catalysts(SACs)

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Temperature‑Arousing Self‑Powered Fire Warning E‑textile Based on p-n Segment Coaxial Aerogel Fibers for Active Fire Protection in Firefighting Clothing

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Nano-Micro Letters 2023年第12期15卷 141-160页

作者： Hualing He Yi Qin Zhenyu Zhu Qing Jiang Shengnan Ouyang Yuhang Wan Xueru Qu Jie Xu Zhicai Yu State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Textile Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Hubei Key Laboratory of Biomass Fibers and Eco‑Dyeing and FinishingWuhan Textile UniversityWuhan 430200People’s Republic of China Jiangsu New Horizon Advanced Functional Fiber Innovation Center Co. Ltd.Suzhou 215000People’s Republic of China

Firefighting protective clothing is a crucial protective equipment for firefighters to minimize skin burn and ensure safety firefighting operation and rescue mission.A recent increasing concern is to develop self-powered fire warning materials that can be incorporated into the firefighting clothing to achieve active fire protection for firefighters before the protective clothing catches fire on ***,it is still a challenge to facilely design and manufacture thermoelectric(TE)textile(TET)-based fire warning electronics with dynamic surface conformability and ***,we develop an alternate coaxial wet-spinning strategy to continuously produce alternating p/n-type TE aerogel fibers involving n-type Ti_(3)C_(2)T_(x)MXene and p-type MXene/SWCNT-COOH as core materials,and tough aramid nanofiber as protective shell,which simultaneously ensure the flexibility and high-efficiency TE power *** such alternating p/n-type TE fibers,TET-based self-powered fire warning sensors with high mechanical stability and wearability are successfully fabricated through stitching the alternating p-n segment TE fibers into aramid *** results indicate that TET-based fire warning electronics containing 50 p-n pairs produce the open-circuit voltage of 7.5 mV with a power density of 119.79 nW cm-2 at a temperature difference of 300℃.The output voltage signal is then calculated as corresponding surface temperature of firefighting clothing based on a linear relationship between TE voltage and *** fire alarm response time and flame-retardant properties are further *** self-powered fire warning electronics are true textiles that offer breathability and compatibility with body movement,demonstrating their potential application in firefighting clothing.

关键词： Self-powered fire warning Coaxial wet spinning P-n segment thermoelectric fiber Thermoelectric textiles Active fire protection

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Wet-milling synthesis of immobilized Pt/Ir nanoclusters as promising heterogeneous catalysts

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Nano Research 2022年第4期15卷 3065-3072页

作者： Peng Du Kai Huang Xiaoyuan Fan Jingteng Ma Naveed Hussain Ruyue Wang Bohan Deng Binghui Ge Haolin Tang Ru Zhang Ming Lei Hui Wu State Key Laboratory of Information Photonics and Optical Communications&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 Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Being a typical state of the art heterogeneous catalyst,supported noble metal catalyst often demonstrates enhanced catalytic ***,a facile synthetic method for realizing large-scale and low-cost supported noble metal catalyst is strictly *** this end,by making use of the strong metal-support interaction(SMSI)and mechanochemical reaction,we introduce an efficient synthetic route to obtain ultrafine Pt and Ir nanoclusters immobilized on diverse substrates by wet chemical *** further demonstrate the scaling-up effect of our approach by large-scale ball-milling production of Pt nanoclusters immobilized on TiO_(2)*** synthesized Pt/Ir@Co_(3)O_(4)catalysts exhibit superior oxygen evolution reaction(OER)performance with only 230 and 290 mV overpotential to achieve current density of 10 and 100 mA·cm^(-2),beating the catalytic performance of Co_(3)O_(4)supported Pt or Ir clusters and commercial Ir/*** is envisioned that the present work strategically directs facile ways for fabricating supported noble metal heterogeneous catalysts.

关键词： heterogeneous catalysts metal clusters wet milling large-scale production strong metal–support interaction

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Bioactive calcium and mangnesium phosphate bone adhesive for enhanced vascularization and bone regeneration

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Journal of materials Science & technology 2023年第33期164卷 246-257页

作者： Jiawei Liu Honglei Kang Wenying Wei Rong Tu Takashi Goto Feng Li Honglian Dai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Biomedical Materials and Engineering Research Center of Hubei ProvinceWuhan University of TechnologyWuhan 430070China Department of Orthopedics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou 521000China New Industry Creation Hatchery Center Tohoku UniversitySendai 980-8579Japan

Bone adhesive is a promising material for the treatment of bone fractures,which is helpful for the fast and effective reduction and fixation of broken ***,the existing adhesives bond weakly to bone tissues,and are non-absorbable,or hard to cure under wet ***,inspired by the cement-based adhesive used in the industry field,we report a bioactive calcium and magnesium phosphate bone adhesive(MPBA)with the properties of facile preparation,robust adhesion,and *** is equipped with similar strength to cancellous bones and shows reliable bonding performance for various interfaces,such as Ti6Al4V,Al2O3,and poly(ether-ether-ketone).MPBA achieves excellent bonding ability for the above interfaces with the bonding strengths of 2.28±0.47,2.32±0.15,and 1.44±0.38 MPa,***,it also shows reliable fixation ability for bovine bone *** bonding behavior to materials and bones suggests that MPBA could be used for both fracture treatment and implant ***,MPBA possesses good biological activity,which could promote the vascularization process and osteogenic ***,in vivo experiments confirmed MPBA can effectively restore bone strength and promote bone regeneration.

关键词： Fracture Calcium magnesium phosphate cement Bone adhesives

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High-Performance Flexible Magnetic textile Fabricated Using Porous Juncus effusus Fiber for Biomechanical Energy Harvesting

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Engineering 2025年第3期46卷 267-277页

作者： Junyao Gong Chunhua Zhang Liangjun Xia Zhaozixuan Zhou Weihao Long Zhuan Fu Sijie Zhou Hua Ji Lixin Du Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China College of Textile Science and Engineering Zhejiang University of Science and TechnologyHangzhou 310018China College of Textiles Donghua UniversityShanghai 201620China Winner Medical Co. Ltd.Wuhan 430200China Luthai Textile Co. Ltd.Zibo 255100China

Mechanical energy produced by human motion is ubiquitous,continuous,and usually not utilized,making it an attractive target for sustainable electricity-harvesting *** this study,flexible magnetic-Juncus effusus(M-JE)fibers were prepared from plant-extracted three-dimensional porous Juncus effusus(JE)fibers decorated with polyurethane and magnetic *** M-JE fibers were woven into fabrics and used for mechanical energy harvesting through electromagnetic *** M-JE fabric and induction coil,attached to the human wrist and waist,yielded continuous and stable voltage(2 V)and current(3 mA)during *** proposed M-JE fabric energy harvester exhibited good energy harvesting potential and was capable of quickly charging commercial capacitors to power small electronic *** proposed M-JE fabric exhibited good mechanical energy harvesting performance,paving the way for the use of natural plant fibers in energy-harvesting fabrics.

关键词： Juncus effusus Magnetic fabrics Electromagnetic induction Energy harvest Mechanical-electrical energy conversion

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FeNi@CNS nanocomposite as an efficient electrochemical catalyst for N_(2)-to-NH_(3) conversion under ambient conditions

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Journal of materials Science & technology 2022年第8期103卷 59-66页

作者： Tayiba Ilyas Fazal Raziq Nasir Ilyas Liuxin Yang Sharafat Ali Amir Zada Syedul Hasnain Bakhtiar Yong Wang Huahai Shen Liang Qiao School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 10084China Department of Chemistry Abdul Wali Khan University of MardanMardanKPK 23200Pakistan Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Institute of Nuclear Physics and Chemistry Chinese Academy of Engineering PhysicsMianyang 621900China

The electrocatalytic nitrogen reduction reaction(NRR)has emerged as a promising renewable energy source and a feasible strategy as an alternative to Haber-Bosch ammonia(NH_(3))***,finding an efficient and cost-effective robust catalyst to activate and cleave the extremely strong triple bond in nitrogen(N_(2))for electrocatalytic NRR is still a ***,a FeNi@CNS nanocomposite as an efficient catalyst for N_(2) fixation under ambient conditions is *** FeNi@CNS nanocomposite was prepared by a simple water bath process and *** FeNi@CNS is demonstrated to be a highly efficient NRR catalyst,which exhibits better NRR performance with exceptional Faradaic efficiency of 9.83%and an NH_(3) yield of 16.52μg h^(−1) cm^(−2) in 0.1 M Na_(2)SO_(4) aqueous ***,high stability and reproducibility with consecutive 6 cycles for two hours are also demonstrated throughout the NRR electrocatalytic process for 12 ***,the FeNi@CNS catalyst encourages N_(2) adsorption and activation as well as effectively suppressing competitive ***,this earth-abundant FeNi@CNS catalyst with a subtle balance of activity and stability has excellent potential in NRR industrial applications.

关键词： Electrocatalytic nitrogen reduction Transition-metal alloy FeNi@CNS catalyst N_(2)fixation to NH_(3)

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Templated synthesis of patterned gold nanoparticle assemblies for highly sensitive and reliable SERS substrates

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Nano Research 2023年第4期16卷 5056-5064页

作者： Jianping Peng Peijiang Liu Yutong Chen Zi-Hao Guo Yanhui Liu Kan Yue South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft MatterSouth China University of TechnologyGuangzhou 510640China National Key Laboratory for Reliability Physics and Its Application Technology of Electrical Component the 5th Electronics Research Institute of the Ministry of Information IndustryGuangzhou 510610China College of Textiles&Clothing Laboratory of New Fiber Materials and Modern TextileState Key laboratory of Bio-Fibers and Eco-TextilesQingdao UniversityQingdao 266000China

Formation of plasmonic structure in closely packed assemblies of metallic nanoparticles(NPs)is essential for various applications in sensing,renewable energy,authentication,catalysis,and ***,a surface-enhanced Raman scattering(SERS)substrate is fabricated for trace detection with ultrahigh sensitivity and *** SERS substrate is constructed from a simple yet robust strategy through in situ growth patterned assemblies of Au NPs based on a polymer brush templated synthesis *** from the dense and uniform distribution of Au NPs,the resulting Au plasmonic nanostructure demonstrates a very strong SERS effect,while the outer polymer brush could restrict the excessive growth of Au NPs and the patterned design could achieve uniform distribution of Au *** results,an ultra-low limit of detection(LOD)of 10^(−15)M,which has never been successfully detected in other work,is determined for 4-acetamidothiophenol(4-AMTP)molecules and the Raman signals in the random region show good signal homogeneity with a low relative standard deviation(RSD)of 7.2%,indicating great sensitivity and reliability as a SERS *** LOD values of such Au plasmonic nanostructures for methylene blue,thiram,and R6G molecules can also reach as low as 10^(−10)M,further indicating that the substrate has a wide range of applicability for SERS *** the help of finite difference time domain simulations(FDTD)calculation,the electric field distribution of the Au plasmonic nanostructures is simulated,which quantitatively matches the experimental ***,the Au plasmonic nanostructures show good shelf stability for at least 10 months of storage in an ambient environment,indicating potentials for practical applications.

关键词： templated synthesis patterned Au nanostructures surface-enhanced Raman scattering polymer brush plasmonic nanostructures

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Temperature Variations of the Human Skin and Clothing During Exercise 16

Temperature Variations of the Human Skin and Clothing During...

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16th textile Bioengineering and Informatics Symposium, TBIS 2023

作者： Sun, Xiao-Xi Jiang, Pei-Qing Wu, Xi Li, Wen-Bin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Hubei Wuhan430200 China Glorious Sun Guangdong School of Fashion Huizhou University Guangdong Huizhou516007 China Deakin University Institute for Frontier Materials Geelong3216 Australia

ISBN: (纸本)9781713879473

Temperature variation is a key factor in clothing design. It is important to monitor the temperature variations of human skin and clothing in real time under different exercise levels. Herein, using an innovative wearable monitor, the variations of skin temperature and clothing temperature during exercise under different conditions were explored. It was proven that the clothing temperature variation trend was almost the same as the human skin temperature variation, but relatively extreme conditions would lead to different temperature variations on human skin and clothing during exercise. The temperature difference between neighboring clothing layers was greater than that between the upper and bottom sides of a single layer. In addition, the temperature difference between adjacent layers of clothing varied from different clothing types. The results and experimental apparatus provided will provide the research basis for the development of comfortable sportswear. © TBIS 2023. All rights reserved.

关键词： Surface temperature

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PDA@ BaTiO₃/CB doping enhances the piezoelectric properties of PVDF membrane for energy harvesting and sensor components

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Journal of Environmental Chemical Engineering 2025年第2期13卷

作者： Zhang, Tianyi Yang, Bo Hao, Ming Hu, Xiaodong Liu, Yanbo Wang, Xiaoxiao School of Textile Science and Engineering State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Hubei Wuhan430200 China School of Textile Science and Engineering State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin300387 China

Flexible piezoelectric nanogenerators (PENGs) are emerging as sustainable power sources for self-charging wearable electronic devices due to their capability to harvest mechanical energy from the environment. Here, we have developed a high-output flexible PENGs based on electrospun composite nanofibers involving poly(vinylidene fluoride) (PVDF), barium titanate modified by dopamine hydrochloride (PDA@BTO) with an enhanced electroactive phase. On addition of 3 wt% PDA@BTO nanoparticles, the electroactive β-phase of the PVDF is found to be intensified to ∼88.05 % as account of the synergistic interfacial interaction between the PDA@BTO nanoparticles and the ferroelectric host polymer substrate on electrospinning. The introduction of carbon black (CB) promotes piezoelectric charge transfer and increases output power. The PBTO/CB/PVDF composite nanofibers delivered the highest VOC of 55 V and the optimal ISC 3.1 μA with 3 % PBTO and 1 % CB. The fabricated PENG based PBTO/CB/PVDF composite nanofibers successfully charged capacitors with capacities of 0.1 μF, 0.33 μF, and 1 μF to voltages of 1.9 V, 3.2 V, and 10 V within 400 s, respectively. The device has response time of 0.1 s and the d33 piezoelectric constant of 1.7 pC/N. The piezoelectric devices exhibited minimal variation in voltage and excellent stability over 900 cycles and the prepared piezoelectric device can light up to 20 LEDs. The potential of the piezoelectric composite nanofiber membranes for assembling mechanical energy collectors and piezoelectric sensors was demonstrated. © 2025 Elsevier Ltd

关键词： Barium titanate

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