检索结果-南通市图书馆

Constructing long-cycling crystalline C_(3)N_(4)-based carbonaceous anodes for sodium-ion battery via N configuration control

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

Carbon Energy 2024年第1期6卷 159-171页

作者： Ying Wang Hongguan Li shuanlong di Boyin Zhai Ping Niu Antonios Kelarakis Shulan Wang Li Li School of Metallurgy Northeastern UniversityShenyangLiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyangLiaoningChina Department of Chemistry College of ScienceNortheastern UniversityShenyangLiaoningChina School of Natural Sciences UCLan Research Centre for Smart MaterialsUniversity of Central LancashirePrestonUK Foshan Graduate School of Innovation Northeastern UniversityFoshanGuangdongChina

Carbon nitrides with two-dimensional layered structures and high theoretical capacities are attractive as anode materials for sodium-ion batteries while their low crystallinity and insufficient structural stability strongly restrict their practical *** carbon nitrides with conductive carbon may relieve these ***,little is known about the influence of nitrogen(N)configurations on the interactions between carbon and C_(3)N_(4),which is fundamentally critical for guiding the precise design of advanced C_(3)N_(4)-related ***,highly crystalline C_(3)N_(4)(poly(triazine imide),PTI)based all-carbon composites were developed by molten salt *** importantly,the vital role of pyrrolic-N for enhancing charge transfer and boosting Na+storage of C_(3)N_(4)-based composites,which was confirmed by both theoretical and experimental evidence,was spot-highlighted for the first *** elaborately controlling the salt composition,the composite with high pyrrolic-N and minimized graphitic-N content was *** from the formation of highly crystalline PTI and electrochemically favorable pyrrolic-N configurations,the composite delivered an unusual reverse growth and record-level cycling stability even after 5000 cycles along with high reversible capacity and outstanding full-cell capacity *** work broadens the energy storage applications of C_(3)N_(4) and provides new prospects for the design of advanced all-carbon electrodes.

关键词： anode highly crystalline C_(3)N_(4) N configuration sodium-ion batteries ultra-long cyclic stability

An Amorphous Anode for Proton Battery

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

Nano-Micro Letters 2023年第2期15卷 182-197页

作者： Huan Liu Xiang Cai Xiaojuan Zhi shuanlong di Boyin Zhai Hongguan Li Shulan Wang Li Li Department of Chemistry College of ScienceNortheastern UniversityShenyang 110819LiaoningPeople’s Republic of China School of Light Industry and Chemical Engineering Dalian Polytechnic UniversityDalian 116034LiaoningPeople’s Republic of China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningPeople’s Republic of China School of Metallurgy Northeastern UniversityShenyang 110819People’s Republic of China

Developing advanced electrode materials is crucial for improving the electrochemical performances of proton ***,the anodes are primarily crystalline materials which suffer from inferior cyclic stability and high electrode ***,we propose amorphous electrode materials for proton batteries by using a general ion-exchange protocol to introduce multivalent metal cations for activating the host *** Al^(3+)as an example,theoretical and experimental analysis demonstrates electrostatic interaction between metal cations and lattice oxygen,which is the primary barrier for direct introduction of the multivalent cations,is effectively weakened through ion exchange between Al^(3+)and pre-intercalated K+.The as-prepared Al-MoOx anode therefore delivered a remarkable capacity and outstanding cycling stability that outperforms most of the state-of-the-art *** assembled full cell also achieved a high voltage of 1.37 *** work opens up new opportunities for developing high-performance electrodes of proton batteries by introducing amorphous materials.

关键词： Proton batteries Amorphous electrode Multivalent cations Remarkable cycling stability High voltage

Crystallinity engineering of carbon nitride protective coating for ultra-stable Zn metal anodes

在线全文

学校读者我要写书评

暂无评论

Electron 2024年第1期2卷 177-187页

作者： Chen Liu Yuxin Zhu shuanlong di Jiarui He Ping Niu Antonios Kelarakis Marta Krysmann Shulan Wang Li Li School of Metallurgy Northeastern UniversityShenyangChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyangChina Foshan Graduate School of Innovation Northeastern UniversityFoshanChina Department of Chemistry College of ScienceNortheastern UniversityShenyangChina UCLan Research Centre for Smart Materials School of Natural SciencesUniversity of Central LancashirePrestonUK School of Dentistry University of Central LancashirePrestonUK

Ineffective control of dendrite growth and side reactions on Zn anodes significantly retards commercialization of aqueous Zn-ion *** conventional interfacial modification strategies that are primarily focused on component optimization or microstructural tuning,herein,we propose a crystallinity engineering strategy by developing highly crystalline carbon nitride protective layers for Zn anodes through molten salt ***,the highly ordered structure along with sufficient functional polar groups and pre-intercalated Kþendows the coating with high ionic conductivity,strong hydrophilicity,and accelerated ion diffusion *** calculations also confirm its enhanced Zn adsorption capability compared to commonly reported carbon nitride with amorphous or semi-crystalline structure and bare *** from the aforementioned features,the as-synthesized protective layer enables a calendar lifespan of symmetric cells for 1100 h and outstanding stability of full cells with capacity retention of 91.5%after 1500 *** work proposes a new conceptual strategy for Zn anode protection.

关键词： crystalline carbon nitride crystallinity engineering long cycling life uniform Zn deposition Zn metal anode

An ultralong-life SnS-based anode through phosphate-induced structural regulation for high-performance sodium ion batteries

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

Science Bulletin 2022年第20期67卷 2085-2095,M0004页

作者： Ying Wang Hongguan Li Silin Chen Boyin Zhai shuanlong di Guangying Gao Sangwook Lee Sangeun Chun Shulan Wang Li Li School of Metallurgy Northeastern UniversityShenyang 110819China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Department of Chemistry College of ScienceNortheastern UniversityShenyang 110819China School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea School of Industrial Technology Advances Kyungpook National UniversityDaegu 41566Republic of Korea

As a star representative of transition metal sulfides, Sn S is viewed as a promising anode-material candidate for sodium ion batteries due to its high theoretical capacity and unique layered structure. However,the extremely poor electrical conductivity and severe volume expansion strongly hinder its practical application while achieving a high reversible capacity with long-cyclic stability still remains a grand challenge. Herein, different from the conventional enhancement method of elemental doping, we report a rational strategy to introduce PO_(4)^(3-)into the Sn S layers using phytic acid as the special phosphorus ***, the presence of PO_(4)^(3-)in the form of Sn–O–P covalent bonds can act as a conductive pillar to buffer the volume expansion of Sn S while expanding its interlay spacing to allow more Na+storage, supported by both experimental and theoretical evidences. Profiting from this effect combined with microstructural metrics by loading on high pyridine N-doped reduced graphene oxide, the as-prepared material presented an unprecedented ultra-long cyclic stability even after 10,000 cycles along with high reversible capacity and excellent full-cell performances. The findings herein open up new opportunities for elevating electrochemical performances of metal sulfides and provide inspirations for the fabrication of advanced electrode materials for broad energy use.

关键词： SnS Phytic acid Sodium ion batteries Ultra-long cyclic stability Anode

蒲公英萜醇对人乳腺癌细胞MCF-7增殖及凋亡的影响

在线全文

学校读者我要写书评

暂无评论

食品科学 2018年第17期39卷 140-144页

作者：朱坤丁米娜杨洋车拴龙陈丽艳延边大学医学院生物化学与分子生物学教研室吉林延吉133002 延边大学医学院病理学教研室吉林延吉133002

目的:探讨蒲公英萜醇对人乳腺癌细胞MCF-7增殖、凋亡的影响及其可能的分子机制。方法:体外培养人乳腺癌细胞MCF-7,采用噻唑蓝比色法和平板克隆实验检测蒲公英萜醇对MCF-7细胞增殖的影响;Hoechst 33342荧光染色法检测细胞凋亡的形态变化;... 详细信息

目的:探讨蒲公英萜醇对人乳腺癌细胞MCF-7增殖、凋亡的影响及其可能的分子机制。方法:体外培养人乳腺癌细胞MCF-7,采用噻唑蓝比色法和平板克隆实验检测蒲公英萜醇对MCF-7细胞增殖的影响;Hoechst 33342荧光染色法检测细胞凋亡的形态变化;Western blot法检测凋亡相关蛋白的表达。结果:蒲公英萜醇对人乳腺癌细胞MCF-7有明显的增殖抑制作用(P<0.05);Hoechst染色结果显示,给药后细胞核内染色质凝集,核固缩,可见凋亡小体;Western blot结果显示,蒲公英萜醇可极显著提高Bax/Bcl-2的比值(P<0.01)以及上调活化型Caspase-3/9的表达(P<0.01),下调PARP的表达(P<0.01)。结论:蒲公英萜醇能够明显抑制人乳腺癌细胞MCF-7增殖,并通过线粒体途径诱导其凋亡。

关键词：乳腺癌蒲公英萜醇凋亡线粒体途径

在线全文

学校读者我要写书评

暂无评论

高校图书馆破窗现象及其治理

创新科技 2016年第8期16卷 83-85页

作者：周拴龙张楠郑州大学信息管理学院河南郑州450000

破窗理论是管理学现代经典理论之一,其核心思想为,如若环境中的不良现象被放任存在,会诱使人们仿效,甚至变本加厉。本文就高校图书馆管理中破窗现象进行分析,并提出其治理方法及其优化方案。

关键词：破窗理论高校图书馆图书馆管理

在线全文

学校读者我要写书评

暂无评论

缅甸蒂洛瓦真空预压法地基处理效果分析

港工技术 2022年第4期59卷 101-105页

作者：牛建光刘拴龙中交第一航务工程勘察设计院有限公司天津300220

介绍了真空预压法在缅甸蒂洛瓦地区软土地基处理工程中的应用情况,通过对地基处理过程中的监测与检测,表明该方法对本场地软土地基加固效果良好,为本地区同类工程优化设计、节约成本积累了经验。通过对比理论计算的沉降量与实测沉降曲... 详细信息

介绍了真空预压法在缅甸蒂洛瓦地区软土地基处理工程中的应用情况,通过对地基处理过程中的监测与检测,表明该方法对本场地软土地基加固效果良好,为本地区同类工程优化设计、节约成本积累了经验。通过对比理论计算的沉降量与实测沉降曲线推算的最终沉降量,可知理论计算时沉降经验系数取值至关重要,本地区沉降经验系数取值为0.9时,理论计算沉降量与实测沉降曲线推算的最终沉降量基本吻合。

关键词：缅甸真空预压监测与检测沉降经验系数

维普期刊数据库博看期刊

Sonic 2024多波束系统在港池航道测量中的应用

在线全文

学校读者我要写书评

暂无评论

港工技术 2017年第3期54卷 113-116页

作者：刘海宝刘拴龙中交第一航务工程勘察设计院有限公司天津300222

本文主要介绍了Sonic 2024电子多波束系统的工作原理、技术参数,以及其在港池航道测量中的具体操作流程,包括设备安装、参数校准,水深测量以及后续的数据处理、相邻条带重叠比对、测量结果分析等,为Sonic 2024电子多波束系统在港池航道... 详细信息

本文主要介绍了Sonic 2024电子多波束系统的工作原理、技术参数,以及其在港池航道测量中的具体操作流程,包括设备安装、参数校准,水深测量以及后续的数据处理、相邻条带重叠比对、测量结果分析等,为Sonic 2024电子多波束系统在港池航道测量中的应用提供参考借鉴。

关键词： Sonic 2024 电子多波束系统水深测量

在线全文

学校读者我要写书评

暂无评论

深基坑地连墙在开挖过程中的变形趋势

港工技术 2017年第5期54卷 74-76页

作者：刘拴龙张书杰中交第一航务工程勘察设计院有限公司天津300222

本文基于真实基坑工程监测数据,通过深基坑开挖过程中地连墙的墙顶水平位移、垂直位移以及地连墙的深层水平位移分析地连墙的变化趋势,可为同类型基坑工程提供借鉴。

关键词：深基坑地连墙基坑监测水平位移垂直位移