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Solution blow spinning mass production of mullite nanofiber from environment friendly aqueous Al–Si solutions

Progress in Natural Science:materials International 2023年第5期33卷 691-700页

作者： Xinpeng Jin Jiugang Li Chi Zhang Keshuai Liu Chong He Wenbin Li School of Textile Science and Engineering Wuhan Textile University State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University

Achieving large-scale production of high-performance mullite ceramic nanofibers posed a formidable ***, an air heating-solution blow spinning technique was designed for the mass fabrication of mullite nanofibers at high speeds, ranging from 6 to 60 ml/h. Spinnable aqueous Al–Si solution systems, employing various aluminum sources, were systematically investigated. The optimization of the solution blow spinning apparatus involved the incorporation of a hot air blow device capable of dispensing streams of hot, dry air. Comprehensive investigations were conducted to examine the impact of variables such as spinning solution viscosity, spinning rate, and spinning distance on the resulting mullite fiber diameter and morphology. Following sintering at 1200°C, mullite fiber cotton was successfully synthesized, exhibiting diameters spanning from 500 nm to 5 μm. These mullite nanofiber cotton demonstrated exceptional attributes, including robust temperature stability(up to 1300°C), remarkable thermal insulation properties and superior filtration efficiency.

关键词： Solution blow spinning Mullite nanofiber Aqueous solution Thermal insulation

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Synergistic Effect of Pore Confinement and Catalysis for Ultra-Stable Potassium-Selenium Batteries

SSRN

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SSRN 2025年

作者： Liang, Shuaitong Li, Yuenan Miao, Junping Liu, Shuoshuo Han, Pengju Li, Xiang Shao, Weili He, Jianxin Xu, Zhiwei International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhongyuan University of Technology Zhengzhou450007 China State Key Laboratory of Separation Membranes and Membrane Processes School of Textiles Science and Engineering Tiangong University Tianjin300387 China

Porous carbon fiber substrates play a pivotal role in enhancing the performance of potassium-selenium (K-Se) battery, as they are key to efficiently confining small Se molecules and regulating selenide reactions. Herein, to address the issues of volumetric expansion and polyselenide formation caused by disordered Se aggregation, a three-dimensional composite material of microporous carbon nanofibers coated with Se and Fe was synthesized, effectively suppressing the shuttle effect of liquid-phase polyselenides. state-of-the-art analytical techniques and theoretical modeling were employed to elucidate the deposition dynamics of Se molecules within micropores and the mitigation mechanisms for volumetric expansion effects. The pore-confinement effect optimizes the spatial distribution of Se, while Fe catalyzed the K2Sex, effectively mitigating the sluggish reaction kinetics associated with K2Sex formation. This study offers a theoretical framework and experimental insights to advance the development of K-Se battery with high energy density and superior cycling stability. © 2025, The Authors. All rights reserved.

关键词： Micropores

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Orbital-level band gap engineering of RuO2 for enhanced acidic water oxidation

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Nature communications 2025年第1期16卷 4845页

作者： Xing Wang Wei Pi Zhaobing Li Sheng Hu Haifeng Bao Weilin Xu Na Yao State Key Laboratory of New Textile Materials and Advanced Processing School of Materials Science and Engineering Wuhan Textile University Wuhan 430200 P. R. China. State Key Laboratory of New Textile Materials and Advanced Processing School of Materials Science and Engineering Wuhan Textile University Wuhan 430200 P. R. China. baohaifeng@***. State Key Laboratory of New Textile Materials and Advanced Processing School of Materials Science and Engineering Wuhan Textile University Wuhan 430200 P. R. China. yaona@***.

Developing efficient and stable oxygen evolution reaction electrocatalysts under acidic conditions is crucial for advancing proton-exchange membrane water electrolysers commercialization. Here, we develop a representative strategy through p-orbital atoms (N, P, S, Se) doping in RuO to precisely regulate the lattice oxygen-mediated mechanism-oxygen vacancy site mechanism pathway. In situ and ex situ measurements along with theoretical calculations demonstrate that Se doping dynamically adjusts the band gap between the Ru-e and O-p orbitals during the oxygen evolution reaction process. This modulation accelerates electron diffusion to the external circuit, promotes the lattice oxygen-mediated process, and enhances catalytic activity. Additionally, it facilitates electron feedback and stabilizes oxygen vacancies, thereby promoting the oxygen vacancy site mechanism process and enhancing catalytic stability. The resulting Se-RuO catalyst achieves efficient proton-exchange membrane water electrolysers performance under industrial conditions with a minimal charge overpotential of 1.67 V to achieve a current density of 1 A cm and maintain long-term cyclability for over 1000 h. This work presents a unique method for guiding the future development of high-performance metal oxide catalysts.

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Incorporating Iron Species into Silicalite-1 Framework Through Iminodisuccinate Ligand to Achieve Superior Catalytic Performance in Propane Dehydrogenation

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Renewables 2025年第2期3卷 87-98页

作者： Haoran Sun Yuyang Han Ziyang Liu Xingwang Zhang Pingping Wu Peng Bai Peng Peng Zifeng Yan State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of PetroleumQingdao 266580 Interdisciplinary Institute of NMR and Molecular Sciences Hubei Provincial Laboratory for Coal Conversion and New Carbon MaterialsSchool of Chemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081

Iron-based catalysts possess the advantages of cost-effectiveness and environmental benignity,showing promising prospects for propane dehydrogenation(PDH)*** this work,with the assistance of the iminodisuccinate(IDS)ligand,Fe species are successfully incorporated into the silicalite-1 zeolite framework through one-pot synthesis,and the thus obtained IDS-S_(1)catalyst shows excellent catalytic performance in PDH,which exhibits a propane conversion rate of 20.8%and a propylene selectivity of 84.8%,and it also shows exceptional catalytic stability(kd=0.003 h^(-1))over 48 h of continuous *** indicate that the framework iron species,instead of extraframework iron species and Brønsted acid sites,are the favorable active centers for *** framework iron species are stabilized by the Si-O structure of the zeolite and possess unique acidic properties,which improve the PDH performance of the catalyst by enhancing propane adsorption activation and facilitating propylene desorption.

关键词： propane dehydrogenation framework iron silicalite-1 zeolite catalyst propane adsorption propylene desorption

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Electron-phonon coupling in lattice engineering of lithium niobate single crystal thin films

arXiv

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arXiv 2025年

作者： Shi, Guoqiang Chen, Kunfeng Hu, Hui Tang, Gongbin Xue, Dongfeng Multiscale Crystal Materials Research Center Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China Institute of Novel Semiconductors State Key Laboratory of Crystal Materials Shandong University Jinan250100 China School of Physics State Key Laboratory of Crystal Materials Shandong University Jinan250100 China Shenzhen Key Laboratory of New Information Display and Storage Materials College of Materials Science and Engineering Shenzhen University Shenzhen518060 China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of China Shenzhen518110 China

Lithium niobate (LN) single crystal thin films are a high-performance photonic platform with applications in electro-optic modulators, nonlinear optical devices, optical frequency combs, and acousto-optic modulators. LN’s significance in photonics parallels silicon’s in electronics, addressing challenges like high power consumption and slow communication speeds, and offering potential for broad applications in optical communications, quantum computing, and artificial intelligence. Despite progress in developing LN-based photonic structures, achieving low-loss, reconfigurable, and large-scale devices requires improved processing techniques. This work introduces a quantum design methodology based on LN’s crystal structure, utilizing electron-phonon coupling through external field perturbations. Multiscale structural analysis is performed with techniques such as time-of-flight secondary ion mass spectrometry, aberration-corrected transmission electron microscopy, and X-ray absorption spectra to identify and control defect structures. Angle-resolved Raman spectroscopy, femtosecond transient absorption spectroscopy, and Density Functional Theory further reveal the mechanisms of electron-phonon coupling. These findings establish a framework for designing LN-based quantum devices with enhanced performance and diverse functionalities. Copyright © 2025, The Authors. All rights reserved.

关键词： Quantum computers

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Long lifespan Li-Se battery: Advances, challenges and prospects

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Journal of Energy Chemistry 2025年 102卷 712-733页

作者： Hongyan Li Thomas L. Madanu Tarek Barakat Wen-Da Dong Alexandru Vlad Xikun Zhang Cheng-Bin Jin Yu Li Bao-Lian Su College of Materials and Chemistry China Jiliang University Hangzhou 310018 Zhejiang China Laboratory of Inorganic Materials Chemistry (CMI) Namur Institute of Structured Matter (NISM) University of Namur 61 rue de Bruxelles B-5000 Namur Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430074 Hubei China Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Université catholique de Louvain Louvain-la-Neuve Belgium

Lithium-selenium (Li-Se) batteries have attracted increasing attention as one of the next-generation battery systems due to much higher electronic conductivity and comparable volumetric capacity of Se compared to the popular sulfur cathode. However, its practical application still faces great challenges, especially the rapid capacity decay triggered by the loss of active Se species. A comprehensive review to uncover the in-depth failure mechanism and provide targeted solutions to promote the stable operation of Li-Se batteries is urgently needed. This review systematically summarizes the strategies in the new perspective, focusing on the optimization of Se utilization in Li-Se batteries by keeping a high Se maintenance in the cathode and accelerating the electrochemical kinetics of lithium polyselenides (LiPSe) conversion. On the basis of structural design and Li 2 Se active material introduction to accommodate volume expansion, blocking shuttle transport of LiPSe by physical/chemical adsorption, bonding Se with polymers or cathode electrolyte interphase (CEI) construction, and catalytic design to accelerate the conversion of LiPSe, different strategies for improving the utilization of Se have been evaluated and discussed. To address the inevitable loss of Se, prospects on inactive Se reactivation and Li protection are detailedly proposed and analyzed referring to the chemistry and corrosion science. Additionally, the perspectives on the future design and comprehensive parameter evaluations for the optimization of Li-Se batteries are recommended. This review comprehensively explains the causes and solutions of capacity fading and provides potential efforts for lifespan expansion of batteries, shedding light on the future development of Li-Se batteries.

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PandaX-xT——A deep underground multi-ten-tonne liquid xenon observatory

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 105-120页

作者： Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Chen Cheng Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Lisheng Geng Karl Giboni Linhui Gu Xunan Guo Xuyuan Guo Zhichao Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Junting Huang Zhou Huang Ruquan Hou Yu Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shuaijie Li Tao Li Qing Lin Jianglai Liu Congcong Lu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yajun Mao Yue Meng Xuyang Ning Binyu Pang Ningchun Qi Zhicheng Qian Xiangxiang Ren Nasir Shaheed Xiaofeng Shang Xiyuan Shao Guofang Shen Lin Si Wenliang Sun Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Xu Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Yuan Wu Mengjiao Xiao Xiang Xiao Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Ying Yuan Zhe Yuan Youhui Yun Xinning Zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Wei Zhang Yang Zhang Yingxin Zhang Yuanyuan Zhang Li Zhao Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou Yubo Zhou Zhizhen Zhou New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Beihang UniversityBeijing 102206China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Southern Center for Nuclear-Science Theory(SCNT) Institute of Modern PhysicsChinesen Academy of SciencesHuizhou 516000China Yalong River Hydropower Development Company Ltd.Chengdu 610051China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China School of Physics Nankai UniversityTianjin 300071China SJTU Paris Elite I

We propose a major upgrade to the existing PandaX-4T experiment at the China Jinping Underground *** new experiment,PandaX-xT,will be a multi-ten-tonne liquid xenon,ultra-low background,and general-purpose *** full-scaled PandaX-xT contains a 43-t liquid xenon active *** an experiment will significantly advance our fundamental understanding of particle physics and *** sensitivity of dark matter direct detection will be improved by nearly two orders of magnitude compared to the current best limits,approaching the so-called“neutrino floor”for a dark matter mass above 10 GeV/c^(2),providing a key test to the Weakly Interacting Massive Particle *** searching for the neutrinoless double beta decay of^(136)Xe isotope in the detector,the effective Majorana neutrino mass can be measured to a 10-41 meV/c^(2) sensitivity,providing a key test to the Dirac/Majorana nature of *** neutrinos and other ultra-rare interactions can also be measured and searched for with an unprecedented background level,opening up new windows of *** on the findings,PandaX-xT will seek the next stage upgrade utilizing isotopic separation of natural xenon.

关键词： dark matter neutrino less double beta decay astrophysical neutrinos liquid xenon

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Scalable Core–Sheath Yarn for Boosting Solar Interfacial Desalination Through Engineering Controllable Water Supply

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Engineering 2023年第11期30卷 153-160页

作者： Xingfang Xiao Luqi Pan Tao Chen Manyu Wang Lipei Ren Bei Chen Yingao Wang Qian Zhang Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Textile Science and EngineeringNational Local Joint Laboratory for Advanced Textile Processing and Clean ProductionWuhan Textile UniversityWuhan 430200China

Tailoring water supply to achieve confined heating has proven to be an effective strategy for boosting solar interfacial evaporation ***,because of salt clogging during desalination,a critical point of constriction occurs when controlling the water rate for confined *** this study,we demonstrate a facile and scalable weaving technique for fabricating core-sheath photothermal yarns that facilitate controlled water supply for stable and efficient interracial solar *** core-sheath yarn comprises modal fibers as the core and carbon fibers as the *** of the core-sheath design,remarkable liquid pumping can be enabled in the carbon fiber bundle of the dispersed superhydrophilic modal *** woven fabrics absorb a high proportion(92%)of the electromagnetic radiation in the solar spectrum because of the weaving structure and the carbon fiber *** one-sun(1 kW·m^(-2))illumination,our woven fabric device can achieve the highest evaporation rate(of 2.12kg·m^(-2)·h^(-1) with energy conversion efficiency:93.7%)by regulating the number of core-sheath *** application tests demonstrate that our device can maintain high and stable desalination performance in a 5 wt%NaCl solution.

关键词： Interfacial solar desalination Photothermal yarn Tunable water supply Core-sheath yarn'Salt clogging

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Study on the preparation and properties of zirconium ceramic fiber toughened composite lightweight alkali-activated slag-based high performance thermal insulation material

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Construction and Building materials 2025年 484卷

作者： Li, Xinlong Qiu, Ruoxiang Sun, Yixun Liu, Yu Tang, Yang Li, Chao Luo, Jusheng Wang, Kaituo School of Resources Environment and Materials State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials Guangxi University Guangxi Nanning530004 China China Nuclear Power Technology Research Institute Co. Ltd China General Nuclear Power Corporation Shenzhen518000 China

With the implementation of the "dual carbon" policy, thermal insulation materials have garnered significant attention in the fields of environmental protection and energy conservation. However, their application has been severely hindered by low mechanical strength and poor high-temperature performance. This paper reports a zirconium ceramic fiber toughened composite lightweight slag-based alkali-activated high performance thermal insulation material (ZCF@LSAAM), and the composition, morphology and performance of ZCF@LSAAM were analyzed and explained using high and low temperature thermal conductivity analyzers, SEM/EDS, XRF, micro-CT and TG-DSC. The compressive and bond strengths of ZCF@LSAAM were 0.2852 and 0.5962 MPa, respectively, and the thermal conductivity at room temperature was 0.0413 W∙m−1∙K−1. Even after 3 h calcination at 600 ºC, the compressive and bond strengths still reached 0.1290 and 0.2937 MPa, respectively, and the thermogravimetric mass loss rate was only 3.66 %, with a thermal conductivity of only 0.1187 W∙m−1∙K−1 at 600 ºC. ZCF@LSAAM has a simple and environmentally friendly preparation process, which meets the requirements of high compressive and bond strength, excellent thermal insulation and high-temperature resistance, and provides a new approach for addressing industrial energy waste and the resulting thermal pollution. © 2025 Elsevier Ltd

关键词： Thermal insulation

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High-content organosilicon waterborne polyurethane and its application in fabric pigment printing

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Colloids and Surfaces A: Physicochemical and Engineering Aspects 2025年 721卷

作者： Ding, Chunyu Li, Xiaoqiang Xiao, Ningning Lin, Guowu Chen, Kunlin Qi, Dongming Sun, Yangyi Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing & Finishing of Textiles Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China Zhejiang Meisheng New Material Co. Shaoxing312000 China Key Laboratory of Eco-Fabric Ministry of Education College of Fabric Science and Engineering Jiangnan University Wuxi214122 China

Organosilicon waterborne polyurethane (OSi-WPU) has gained great attention for its improved water resistance and thermal stability, offering great improvement over conventional two-component WPUs. These improvements are primarily achieved by incorporating organosilicon (OSi) into the PU matrix. However, existing methods such as physical blending or chemical grafting show limitations of poor compatibility and modest reaction efficiency, resulting in uneven distribution and limited silicon (Si) content. Here, we develop an advanced OSi-WPU formulation with up to 2.52 wt% silicon doping along the PU molecular chain, showcasing outstanding water resistance (with water absorption rate reduction by 37.5 % compared to pure PU), enhanced thermal stability (marked by an enhanced glass transition temperature), and good film-forming capability (remarkable smoothness and evenness). The core of our innovative approach lies in the chemical bonding of a carboxylic acid-functionalized polyol and a liner polyol-functionalized Si-segment, synthesized via a Michael addition reaction between unsaturated 2,3-dihydroxypropyl acrylate and γ-aminopropyltriethoxysilane, to the hard segments of the PU prepolymer through urethane linkage, which ensures a high silicon content and uniform distribution throughout the PU structure. Additionally, when this OSi-WPU is blended with various pigments (including red, green, and blank) and applied to fabric substrates, it not only maintains exceptional smoothness and evenness in film-forming properties, but also significantly enhances the abrasion resistance of virous pigments. Our methodological advancement lays a robust foundation for future enhancements in WPU technology. © 2025 Elsevier B.V.

关键词： Grafting (chemical)

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