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Polymer electrolytes for flexible zinc-air batteries:Recent progress and future directions

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Nano Research 2024年第7期17卷 6058-6079页

作者： Jing Wu Wen-Ya Wu Suxi Wang Dan Kai Enyi Ye Warintorn Thitsartarn Janet Beng Hoon Tan Jianwei xu Qingyu Yan Qiang Zhu Xian Jun Loh Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)1 Pesek RoadJurong IslandSingapore 627833Singapore Institute of Materials Research and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)2 Fusionopolis WayInnovis#08-03Singapore 138634Singapore School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang LinkSingapore 637371Singapore Department of Material Science and Engineering National University of Singapore9 Engineering Drive 1#03-09 EASingapore 117575Singapore

This review article delves into the development of electrolytes for flexible zinc-air batteries(FZABs),a critical component driving the advancement of flexible *** started by surveying the current advancements in electrolyte technologies,including solid-state and gel-based types,and their contributions to enhance the flexibility,efficiency,and durability of ***,we explored the challenges in this domain,focusing on maintaining electrolyte stability under mechanical stress,ensuring compatibility with flexible substrates,optimizing ion conductivity,and under harsh environmental ***,the key issues regarding interface details between electrolyte and the electrodes are covered as *** then discussed the future of electrolyte development in FZABs,highlighting potential avenues such as materials development,sustainability,in-situ studies,and battery *** review offers an in-depth overview of the advancements,challenges,and potential breakthroughs in creating electrolytes for FZABs over the past five *** serves as a guide for both researchers and industry professionals in this dynamic area.

关键词： flexible zinc-air batteries electrolyte polymer hydrogel electrolyte-electrode interface

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TPS-PBAT复合材料的制备及表征

塑料科技 2024年第5期52卷 117-120页

作者：姜林旭王晓广夏发明方可苏小雅武汉纺织大学湖北武汉430200 湖北顶新环保生物质材料有限公司湖北黄石435200 山东润泉生物科技有限公司山东枣庄277000

以钠基蒙脱土为填充物制备Na-GMMT/TPS粒料(简称TPS),将TPS按不同比例与PBAT共混,通过双螺杆挤出机制备TPS-PBAT复合材料。通过万能材料试验机、X射线衍射系统(XRD)、热重分析仪(TG)和扫描电子显微镜(SEM),对TPS-PBAT复合材料的结构和... 详细信息

以钠基蒙脱土为填充物制备Na-GMMT/TPS粒料(简称TPS),将TPS按不同比例与PBAT共混,通过双螺杆挤出机制备TPS-PBAT复合材料。通过万能材料试验机、X射线衍射系统(XRD)、热重分析仪(TG)和扫描电子显微镜(SEM),对TPS-PBAT复合材料的结构和性能进行表征。结果表明:以TPS为基体时,复合材料可以在保持良好断裂伸长率的前提下,大幅提升拉伸强度。TPS-PBAT-4复合材料的断裂伸长率为233.3%,拉伸强度为18.9 MPa。随着TPS含量的提升,复合材料的衍射峰逐渐平缓,说明TPS的添加降低了复合材料的结晶度。TPS的加入,提升了玉米淀粉和PBAT的热稳定性。以PBAT为基体时,TPS与PBAT的相容性较差。以TPS为基体时,TPS与PBAT之间没有明显的界限,表现出较好的相容性。

关键词：钠基蒙脱土 TPS PBAT 力学性能

Effective rare earth extraction from Nd-Fe-B waste by liquid cuprum extraction method

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Journal of Rare Earths 2020年第12期38卷 1337-1343页

作者： Ke xu Junru xiao Zhongwu Liu School of Materials Science and Engineering South China University of TechnologyGuangzhou 510640China Dongguan Hyper Tech Co. Ltd.Dongguan 523808China

Recovery of rare earth(RE)elements from Nd-Fe-B waste is one of the ways to solve the problem of socalled RE-crisis,An alternative approach of extracting RE elements from Nd-Fe-B waste by molten Cu extraction based on liquid-solid diffusion and reaction is reported in this *** extraction process,product microstructure and extraction efficiency were systematically *** results show that the extraction rate of RE at 1200℃is about 20%higher than that at 1100℃.The enhanced extraction efficiency at 1200℃results from the fact that the liquid Fe and Fe2 B are not co-soluble with Cu,Reducing the mass ratio of Cu to waste and the size of the waste scraps is also beneficial to enhancing the separation of RE and Fe *** addition,the extraction time should be well controlled,for example,less than 2 h at 1100℃,in order to avoid the increased Fe content in the extracted *** on optimized process,the RE elements ca n be almost fully extracted from the *** work thus provides an effective method to recover the RE elements.

关键词： Nd-Fe-B waste Rare earth extraction Liquid extraction Scrap particles Extraction efficiency

Innovations in measuring and mitigating phytohemagglutinins,a key food safety concern in beans

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Food Quality and Safety 2024年第1期8卷 1-11页

作者：吕晨泽房智慧杨素宁康徐敏 Arnaud Buhot Yanxia Hou 胡培雅徐沛 Key Laboratory of Specialty Agri-products Quality and Hazard Controlling Technology of Zhejiang Province College of Life SciencesChina Jiliang UniversityHangzhouChina University Grenoble Alpes CEACNRSINAC-SyMMESGrenobleFrance

Phytohemagglutinin(PHA)is a seed storage protein and a type of lectin originally discovered in the common bean(Phaseolus vulgaris)for its blood-agglutinating *** to its interactions with gut epithelia and digestive enzymes and its potential to trigger allergic reactions,PHA can lead to various symptoms in the human *** a result,it has been regarded as a signifcant antinutritional factor in beans and other *** several published works have summarized its structural,biochemical,and toxicological features,there is a scarcity of literature that reviews the detection,quantifcation,and reduction of PHA in beans,which is fundamental for the development of safer bean *** this review,we present a comprehensive analysis of traditional and innovative bio-sensing methods for measuring PHA,including the recently available ultrapure liquid chromatography–tandem mass spectrometry and emerging aptamer sensor-based techniques,while discussing their respective advantages and *** also revisit existing studies dedicated to creating PHA-depleted common bean varieties and explore the potential for reducing PHA content in beans without compromising their resistance to biotic ***,we offer insights into the potential for controlling PHA content using the latest biotechnologies and breeding ***,this review compiles rare and valuable information from studies that solely focuses on detection and depletion of PHA to shed light on and apply technological advancements in addressing potential food safety risks associated with the consumption of common beans.

关键词： Phytohemagglutinin common bean food safety breeding quantifcation.

东北地区黑土地保护利用与乡村振兴的融合机理及互馈理路研究——基于典型村庄的过程追踪调查

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自然资源学报 2024年第5期39卷 1193-1207页

作者：李政宏吕晓徐畅牛善栋王亚男东北大学文法学院沈阳110169

化解东北地区乡村贫困与黑土地退化高度重叠问题,需探索统筹实施黑土地保护利用与乡村振兴的系统策略,发现其背后的因果关系。在解析东北地区黑土地保护利用与乡村振兴二者间融合机理的基础上,运用过程追踪法对典型案例村庄开展调查,厘... 详细信息

化解东北地区乡村贫困与黑土地退化高度重叠问题,需探索统筹实施黑土地保护利用与乡村振兴的系统策略,发现其背后的因果关系。在解析东北地区黑土地保护利用与乡村振兴二者间融合机理的基础上,运用过程追踪法对典型案例村庄开展调查,厘清二者间的互馈理路,明晰内在因果传导路径。研究发现:(1)二者在目标上高度统一、内涵上高度融合、利益上相互协调、措施上相互补充;(2)从驱动机制、链接机制、助推机制解析二者间的互馈理路,要求推动要素层整合优化、政策层中介链接、资源层转化提升;(3)要素驱动型、政策主导型、资源赋能型三类村庄发展历程具有差异化的因果传导路径。需从保护黑土资源本底、加快生产要素驱动、健全政策统筹机制、采取差异化发展路径四个方面支撑二者统筹发展。

关键词：黑土地保护利用乡村振兴融合机理互馈理路过程追踪

Cleaning of two mirrors in the first mirror unit using radiofrequency capacitively coupled plasma

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Plasma Science and Technology 2024年第9期26卷 165-171页

作者： Chenxue WANG Rong YAN Yuming LIU Su xu Lei MU Wei ZHENG Rui DING Junling CHEN Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China School of Computer Engineering Anhui Sanlian UniversityHefei 230601People’s Republic of China

First mirror(FM)cleaning,using radio frequency(RF)plasma,has been proposed to recover FM reflectivity in nuclear fusion reactors such as the International Thermonuclear Experimental Reactor(ITER).To investigate the influence of simultaneous cleaning of two mirrors on mirror cleaning efficiency and uniformity,experiments involving single-mirror cleaning and dual-mirror cleaning were conducted using RF capacitively coupled plasma in the *** the test and simultaneous cleaning of two mirrors,the FM and second mirror(SM),both measuring 110 mm×80 mm,were placed inside the first mirror unit(FMU).They were composed of 16 mirror samples,each with a dimension of 27.5 mm×20 *** mirror samples consist of a titanium-zirconium-molybdenum alloy substrate,a 500 nm Mo intermediate layer and a 30 nm Al_(2)O_(3) surface coating as a proxy for Be *** cleaning of a single first mirror(SFM)and the simultaneous cleaning of the FM and SM(DFM and DSM)lasted for 9 h using Ar plasma at a pressure of 1 *** total reflectivity of mirror samples on the DSM did not fully recover and varied with location,with a self-bias of−140 *** a self-bias of−300 V,the total reflectivity of mirror samples on the SFM and DFM was fully *** energy dispersive spectrometer results demonstrated that the Al_(2)O_(3) coating had been completely removed from these mirror ***,the mass loss of each mirror sample on the SFM and DFM before and after cleaning varied depending on its location,with higher mass loss observed for mirror samples located in the corners and lower loss for those in the *** with SM cleaning,the simultaneous cleaning of two mirrors reduced the difference between the highest and lowest mass ***,this mass loss for the mirror samples of the DFM facing the DSM was *** indicated that mirror samples cleaned face to face in the FMU simultaneously could influence each other,highlighting the need for special attention in

关键词： first mirror unit dual-mirror cleaning reflectivity sputtering rate

Phase Engineering of MXene Derivatives Via Molecular Design for High-Rate Sodium-Ion Batteries

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Energy & Environmental Materials 2024年第5期7卷 126-134页

作者： Hui Zhang Xingwu Zhai Xin Cao Zhihao Liu Xinfeng Tang Zhihong Hu Hang Wang Zhandong Wang Yang xu Wei He Wei Zheng Min Zhou Zheng Ming Sun Hefei National Laboratory for Physical Sciences at the Microscale School of Chemistry and Materials Science University of Science and Technology of China School of Materials Science and Engineering Southeast University National Synchrotron Radiation Laboratory University of Science and Technology of China Department of Chemistry University College London School of Chemistry and Chemical Engineering Southeast University

Since 2019, research into MXene derivatives has seen a dramatic rise; further progress requires a rational design for specific functionality. Herein, through a molecular design by selecting suitable functional groups in the MXene coating, we have implemented the dual N doping of the derivatives,nitrogen-doped TiO2@nitrogen-doped carbon nanosheets （N-TiO2@NC）, to strike a balance between the active anatase TiO2at low temperatures, and carbon activation at high temperatures. The NH3reduction environment generated at 400℃as evidenced by the in situ pyrolysis SVUV-PIMS process is crucial for concurrent phase engineering. With both electrical conductivity and surface Na+availability, the N-TiO2@NC achieves higher interface capacitive-like sodium storage with long-term stability. More than100 mAh g-1is achieved at 2 A g-1after 5000 cycles. The proposed design may be extended to other MXenes and solidify the growing family of MXene derivatives for energy storage.

关键词： high-rate sodium-ion batteries molecular design MXene derivative phase engineering

基于原型监测的分离式加筋土桥台工作性能数值分析

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江苏大学学报（自然科学版） 2024年第2期45卷 234-241页

作者：胥昕怡徐超同济大学土木工程学院上海200092 同济大学岩土及地下工程教育部重点实验室上海200092

依托明巢高速公路分离式加筋土桥台工程原型监测,用FLAC2D软件建立桥台数值模型,并将数值模拟得到的桥台受力及变形情况与桥台原型监测结果进行对比验证.考虑到填料类型及其压实工序与填料力学性能的相关性,模拟分析了填料内摩擦角对加... 详细信息

依托明巢高速公路分离式加筋土桥台工程原型监测,用FLAC2D软件建立桥台数值模型,并将数值模拟得到的桥台受力及变形情况与桥台原型监测结果进行对比验证.考虑到填料类型及其压实工序与填料力学性能的相关性,模拟分析了填料内摩擦角对加筋土桥台工作性能的影响.结果表明:随着填料内摩擦角的增大,分离式桥台的水平土压力和竖向土压力都有所减少,并且竖向位移、水平位移及筋材应变也有所减少;当填料内摩擦角增大到一定程度时,其对承载性能的优化作用有所减少;工程中选取加筋土填料时,根据现场施工情况确定填料的内摩擦角,并权衡工作性能及经济效益,做出合理的选择.

关键词：非承重式加筋土桥台分离式加筋土桥台数值模拟填料内摩擦角工作性能

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电离氢区S187的大尺度CO多谱线观测

天文学报 2024年第5期65卷 1-36页

作者：徐小云陈学鹏张世瑜孙燕中国科学院紫金山天文台南京210023 中国科学技术大学天文与空间科学学院合肥230026

大质量恒星强烈的反馈深刻影响其周围的星际介质,并可能触发下一代恒星形成.S187是位于银河系第2象限的大质量恒星形成区,呈现出“扫集-坍缩”的触发式恒星形成模式.基于“银河画卷”巡天^(12)CO/^(13)CO/C^(18)O(J=1-0,下文J=1-0为简... 详细信息

大质量恒星强烈的反馈深刻影响其周围的星际介质,并可能触发下一代恒星形成.S187是位于银河系第2象限的大质量恒星形成区,呈现出“扫集-坍缩”的触发式恒星形成模式.基于“银河画卷”巡天^(12)CO/^(13)CO/C^(18)O(J=1-0,下文J=1-0为简便起见省略)谱线数据,对S187区域分子云的基本性质开展了研究,探索了该区域大质量恒星对分子云的反馈.利用GaussPy+和聚类算法,在该区域证认了32个分子云,并结合Gaia(Global Astrometric Interferometer for Astrophysics)卫星恒星消光数据测量得到其中8个分子云的距离.S187区域由^(13)CO和C^(18)O示踪的相对致密的气体含量相比于银道面第2象限大部分区域的分子云高出1–2个量级.S187区域分子云中证认了243个^(13)CO团块和98个C^(18)O团块,其中有7个^(13)CO团块和5个C^(18)O团块有形成大质量恒星的潜力.研究结果显示,大质量恒星的反馈对其周围分子云的聚集作用明显,为下一代大质量恒星的形成提供了条件.

关键词：星际介质:云星际介质:电离氢区恒星:形成射电谱线:星际介质星际介质:个别:S187