检索结果-南通市图书馆

Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

Nano-Micro Letters 2025年第2期17卷 447-462页

作者： Haonan zhang Cheng Hao Tongtong fu Dian Yu Jane Howe Kaiwen Chen Ning Yan Hao Ren Huamin Zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑Thin Electromagnetic Wave Absorber

引用

Nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu xiao Shangru Zhai Chuang Xue Guangping Zheng Deqing zhang Renchao Che Junye Cheng Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).Nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Integrating lipidomics and gut microbiota to study the anti-hyperlipidemia effect of Sargentodoxae Caulis extract

引用

Traditional Medicine Research 2025年第1期10卷 1-11页

作者： xiao-xiao zhang Li Jia Xiu-Jun Zhan Charity Ngina Qing-Rui zhang xiao-Ge Li Qi-Bao Jiang Shi Bai Miao-Miao Jiang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjin 301617China Haihe Laboratory of Modern Chinese Medicine Tianjin 301617China School of Medicine Taizhou UniversityTaizhou 318000China.

Background:Sargentodoxae Caulis(SC)is the vine stem of Sargentodoxa Cuneata(Oliv.)Rehd.&*** in ***,and it in traditional Chinese medicine has been known for promoting blood circulation and removing blood stasis as recorded in the ancient book“Illustrated Classics of Materia Medica”.It has been used effectively to treat blood stasis too in modern clinical ***,the anti-hyperlipidemia effect of SC is not fully *** paper aims at exploring the use of SC stems to improve the balance of blood lipids in the body,and its new role in treating ***:The effects of SC extract on hyperlipidemia were explored by combining lipidomics and gut ***,we explored the potential mechanism of SC in treating hyperlipidemia by pathway ***:The results showed that the stem extract of SC could restore the physiological and biochemical indices of hyperlipidemia in mice,as well as repair the morphological and structural damage to *** to the Model group,the SC extract significantly reduced the liver index,epididymal fat index,and Lee’s *** also significantly decreased serum levels of total cholesterol,triglycerides,low-density lipoprotein cholesterol,peroxisome proliferator-activated receptor gamma(PPAR-γ),D-lactate,and free fatty acids,while significantly increasing the relative content of peroxisome proliferator-activated receptor alpha(PPAR-α).These changes were statistically ***-targeted lipidomics,based on LC-MS,were utilized to investigate the lipid metabolism characteristics in serum,liver,and epididymal fat of the *** was observed that,compared to the blank group,the Model group exhibited significant changes primarily in glycerol lipids and *** treatment group also displayed alterations in these lipids.A total of 38,81,and 27 differential lipids were identified in serum,liver,and epididymal fat samples,*** these,14 common differenti

关键词： hyperlipidemia Sargentodoxae Caulis lipidomics intestinal flora

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

内蒙古典型草原土壤真菌群落结构对季节土层交互的响应

引用

草地学报 2024年第11期32卷 3408-3416页

作者：聂佳明张晓馥张起迪郭晓冬蔡思萌董永旺刘慧艳赵鸿彬无内蒙古农业大学内蒙古呼和浩特010010 内蒙古农业大学/麦类种质创新利用自治区高等学校重点实验室内蒙古呼和浩特010010 内蒙古农业大学/内蒙古自治区生物制造重点实验室内蒙古呼和浩特010010 内蒙古农业大学/草原资源教育部重点实验室内蒙古呼和浩特010010

为探究草原土壤真菌群落结构对季节与土层交互的响应规律及其影响因素,本研究以内蒙古典型草原土壤为研究对象,采用高通量测序测定不同生长季、不同土层的真菌群落结构特征,探讨真菌群落结构变化与土壤理化性质的关系。结果显示,土壤有... 详细信息

为探究草原土壤真菌群落结构对季节与土层交互的响应规律及其影响因素,本研究以内蒙古典型草原土壤为研究对象,采用高通量测序测定不同生长季、不同土层的真菌群落结构特征,探讨真菌群落结构变化与土壤理化性质的关系。结果显示,土壤有机质、速效氮、速效磷和土壤体积含水量随土层的加深而显著降低(P4水平上有28种真菌具有显著差异。同时,土壤真菌丰度和多样性与速效氮、速效磷、土壤体积含水量和土壤温度均呈显著正相关(P<0.05),与pH值和土壤有机质呈显著负相关(P<0.05)。本试验结果为草地资源的可持续利用以及草原生态系统的稳定性研究提供数据支持。

关键词：土壤真菌群落结构季节与土层交互变化土壤理化性质典型草原

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Accuracy of empirical and paraboloid magnetic field models estimated by Cluster magnetic data

Accuracy of empirical and paraboloid magnetic field models e...

引用

第十二届全国日地空间物理学术讨论会

作者： zhang xiao-fang~1 fu Yang~2 YAN Wei~1 (1.Meteorology Institute,PLA Science and Technology University,Nanjing 211101,China 2.Beijing Institute of Applied Meteorology,Beijing 100029,China)

＜正＞Cluster Ⅱ passing through the Birkeland current regions and the ring current inbetween,this paper compares the empirical magnetic field model T96、T01 and the paraboloid model A2000 with Cluster Ⅱ magnetic ***...

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

胜利油田高凝原油复配降凝剂的研制

引用

青岛大学学报（工程技术版） 2009年第2期24卷 77-83页

作者：张拂晓方龙聂兆广张晓东青岛大学化学化工与环境学院山东青岛266071

由丙烯酸十八酯、马来酸酐和醋酸乙烯酯三元共聚物的胺解改性物MAVA和EVA复配物为原料,通过复配制备了一种高凝原油降凝剂,该降凝剂对43℃的胜利油田高凝原油具有明显的降凝效果;用红外光谱和核磁共振氢谱表征了所合成的MAVA的结构;用DS... 详细信息

由丙烯酸十八酯、马来酸酐和醋酸乙烯酯三元共聚物的胺解改性物MAVA和EVA复配物为原料,通过复配制备了一种高凝原油降凝剂,该降凝剂对43℃的胜利油田高凝原油具有明显的降凝效果;用红外光谱和核磁共振氢谱表征了所合成的MAVA的结构;用DSC曲线研究了降凝剂的结晶性能。分别将EVA复配物、MAVA和复配降凝剂按总加剂质量浓度400μg/g加入到胜利油田高凝原油中,原油凝点相应降低了5℃、4℃和11℃,结果表明,EVA复配物和MAVA之间存在协同降凝效应;研究了原油加降凝剂前后的粘度、蜡晶形态以及DSC曲线的变化,研究结果表明,所制备的复配降凝剂对胜利油田高凝原油确实存在改性作用。

关键词：降凝剂凝点胺解复配

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Na_2O加入量对Li_2O-ZnO-SiO_2微晶玻璃性能的影响

引用

超硬材料工程 2007年第4期19卷 27-32页

作者：张小福卢安贤张红霞中南大学湖南长沙410083 河南工业大学河南郑州450052

文章研究了向Li2O-ZnO-SiO2微晶玻璃中加入Na2O,以降低其软化温度和高温熔体粘度,使其能用作金刚石砂轮结合剂。研究结果表明:当向Li2O-ZnO-SiO2微晶玻璃中加入Na2O时,Na2O降低Li2O-ZnO-SiO2微晶玻璃软化温度的作用不十分明显,加入量达1... 详细信息

文章研究了向Li2O-ZnO-SiO2微晶玻璃中加入Na2O,以降低其软化温度和高温熔体粘度,使其能用作金刚石砂轮结合剂。研究结果表明:当向Li2O-ZnO-SiO2微晶玻璃中加入Na2O时,Na2O降低Li2O-ZnO-SiO2微晶玻璃软化温度的作用不十分明显,加入量达12.94%(mol%)时,玻璃的软化温度仍有1263K(仍高于金刚石磨料要求烧成温度低于1173k的要求),而此时玻璃的热膨胀系数已达到14.7×10-6(远高于金刚石磨料的热膨胀系数3.17×10-6),同时微晶玻璃的结构遭到破坏,微晶玻璃的的抗折强度也随Na2O加入量的增加而降低。因此,Na2O应与其它低熔物共同作用才能改善Li2O-ZnO-SiO2微晶玻璃性能,使之能用作金刚石砂轮结合剂。

关键词： Li2O-ZnO-SiO2 微晶玻璃陶瓷结合剂金刚石砂轮 Na2O

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

半导体光放大器非线性效应探讨

引用

天中学刊 2010年第2期25卷 13-15页

作者：张晓伏王其华黄淮学院电子科学与工程系河南驻马店463000

在分析半导体光放大器的增益饱和及非线性相移的基础上,论述了半导体光放大器的5种非线性效应,探讨了基于半导体光放大器非线性效应的波长转换器的工作原理.

关键词：半导体光放大器非线性效应波长转换器

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于主动锁模光纤激光器的时钟分频研究

引用

牡丹江师范学院学报（自然科学版） 2010年第2期36卷 26-28页

作者：张晓伏梁立成黄淮学院电子科学与工程系河南驻马店463000 驻马店高级技工学校河南驻马店463000

以主动锁模为核心,用主动锁模的同步锁模技术,给出了系统模型.时钟分频采用锁相环反馈控制调制频率平均处理方法,提高系统稳定度,实验仿真给出了激光器锁模脉冲波形和光孤子光谱.

关键词：主动锁模相位同步窄带滤波器锁相环

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Graphene Aerogel Composites with Self‑Organized Nanowires‑Packed Honeycomb Structure for Highly Efficient Electromagnetic Wave Absorption

引用

Nano-Micro Letters 2025年第2期17卷 533-547页

作者： xiao You Huiying Ouyang Ruixiang Deng Qiuqi zhang Zhenzhong Xing xiaowu Chen Qingliang Shan Jinshan Yang Shaoming Dong State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory of Inorganic Coating Materials CAS Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210People’s Republic of China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China University of Chinese Academy of Sciences Beijing 100039People’s Republic of China

With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave ***,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss *** macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene *** unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric ***,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 ***,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.

关键词： Hierarchical porous structure Interface High-temperature resistance Graphene aerogel composites Electromagnetic wave absorption

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：