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Recent progress in Co-based metal-organic framework derivatives for advanced batteries

Journal of Materials Science & Technology 2022年第1期96卷 262-284页

作者： jianen zhou Qingyun Yang Qiongyi Xie Hong Ou Xiaoming Lin Akif Zeb Lei Hu Yongbo Wu Guozheng Ma Guangzhou Key Laboratory of Materials for Energy Conversion and Storage Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006China Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application School of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu 241000China School of Physics and Telecom Engineering South China Normal UniversityGuangzhou 510006China

To date,Co-based metal-organic frameworks(Co-MOFs)have drawn much attention owing to their advantages of easy preparation,high porosity and adjustable *** of these enticing properties,numerous efforts have been devoted to their applications in energy storage and ***,poor conductivity has become one of the biggest obstacles for large-scale use of pristine ***,many attempts have been carried out to develop various Co-MOF derived materials as electrodes for rechargeable batteries in order to address the above-mentioned shortcoming and to enhance the electrical conductivity with improved stability during ***,in addition to improvement of Li-ion batteries in practical utilization,seeking for other rechargeable batteries is another urgent task due to the high cost and limited sources of metallic ***,by following the recent research progress,this review provides an overview of applications of Co-MOF derived materials in various rechargeable batteries including lithium-ion batteries,sodium-ion batteries,lithium-sulfur batteries,zinc air batteries and other rechargeable batteries,where they have been utilized as cathodes,anodes,separators and ***,we categorize and compare the morphology driven electrochemical performance of various Co-MOF derivatives including porous carbon,cobalt oxides,cobalt chalcogenides,cobalt phosphides and corresponding ***,current challenges for large-scale production and commercialization of Co-MOF derived materials as well as some reasonable solutions have been discussed at the end.

关键词： Co-based metal-organic frameworks Derivatives Electrodes Rechargeable batteries

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Increased Oxygen Vacancies in CuO-ZnO Snowflake-like Composites Drive the Hydrogenation of CO_(2) to Methanol

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China Petroleum Processing & Petrochemical Technology 2024年第2期26卷 22-33页

作者： San Xiaoguang Wu Wanmeng Zhang Lei Meng Dan Chang Xiangshuang Tan jianen Qi Jian College of Chemical Engineering Shenyang University of Chemical TechnologyShenyang 110142China Shenyang Xinghua Aviation Electrical Appliances Co. Ltd.Shenyang 110023China Department of Prosthodontics PLA 964 HospitalChangchun 130000China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Cu/ZnO is widely used in the hydrogenation of carbon dioxide (CO_(2)) to methanol (CH_(3)OH) to improve the lowconversion rate and selectivity generally observed. In this work, a series of In, Zr, Co, and Ni-doped CuO-ZnO catalysts wassynthesized via a hydrothermal method. By introducing a second metal element, the activity and dispersion of the activesites can be adjusted and the synergy between the metal and the carrier can be enhanced, forming an abundance of oxygenvacancies. Oxygen vacancies not only adsorb CO_(2) but also activate the intermediates in methanol synthesis, playing a keyrole in the entire reaction. Co3O4-CuO-ZnO had the best catalytic performance (a CO_(2) conversion rate of 9.17%;a CH_(3)OHselectivity of 92.77%). This study describes a typical strategy for multi-component doping to construct a catalyst with anabundance of oxygen vacancies, allowing more effective catalysis to synthesize CH_(3)OH from CO_(2).

关键词： CuO-ZnO catalyst CO_(2)hydrogenation to CH_(3)OH doping oxygen vacancy synergy

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海南岛抱板杂岩记录的多期构造热事件:锆石和独居石U-Pb年代学的制约

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岩石学报 2024年第1期40卷 119-139页

作者：陈龙耀刘晓春胡娟夏蒙蒙韩建恩中国地质科学院地质力学研究所北京100081 自然资源部古地磁与古构造重建重点实验室北京100081

抱板杂岩(抱板群)是海南岛目前已发现的最古老前寒武纪结晶基底,记录了多期构造热事件,是研究海南岛大地构造属性的重要窗口。本文通过对海南岛冲卒岭地区抱板杂岩变质沉积岩、变质基性岩和伟晶岩脉的锆石和独居石LA-ICP-MS U-Pb年代学... 详细信息

抱板杂岩(抱板群)是海南岛目前已发现的最古老前寒武纪结晶基底,记录了多期构造热事件,是研究海南岛大地构造属性的重要窗口。本文通过对海南岛冲卒岭地区抱板杂岩变质沉积岩、变质基性岩和伟晶岩脉的锆石和独居石LA-ICP-MS U-Pb年代学研究,来确定抱板杂岩所经历的多期构造热事件及其所代表的构造意义。研究结果显示,抱板杂岩主要由中元古代变质沉积岩、花岗质片麻岩和变质基性岩组成,经历了中元古代晚期-新元古代早期(1.3~0.9Ga)、早古生代(470~440Ma)、三叠纪(~230Ma)等多期构造热事件的改造。中元古代晚期-新元古代早期构造热事件与罗迪尼亚超大陆的汇聚有关;早古生代构造热事件与东冈瓦纳古陆北缘的增生造山作用有关;三叠纪构造热事件是印支陆块与华南陆块碰撞拼合的远程响应。综合上述研究成果和区域对比分析,认为海南岛与印支陆块具有相似的前寒武纪结晶基底和多期构造热事件的记录,表明二者具有明显的亲缘关系。

关键词：锆石和独居石U-Pb年龄构造热事件构造属性抱板杂岩海南岛

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T/CMTBA 1010—2021《数控往复走丝电火花线切割机床性能评价规范》团体标准解读

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电加工与模具 2024年第3期 32-36页

作者：王晓娟张旭东张宝华饶佩明周志凯梅建恩苏州电加工机床研究所有限公司江苏苏州215011 杭州华方数控机床有限公司浙江杭州310013 北京安德建奇数字设备股份有限公司北京101400 江苏冬庆数控机床有限公司江苏泰州225400 苏州三光科技股份有限公司江苏苏州215129 苏州市宝玛数控设备有限公司江苏苏州215151

介绍了《数控往复走丝电火花线切割机床性能评价规范》团体标准的制定背景、目的和主要内容,并在检验项目、关键指标等方面与现行行业标准进行了比对,解读了该团体标准的先进性、科学性和实用性。

关键词：往复走丝电火花线切割机床多次切割标准解读

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东昆仑二叠系格曲组火山岩年代学、地球化学特征及其构造意义

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地球学报 2024年第2期45卷 152-164页

作者：张耀玲倪晋宇胡道功韩建恩高万里王超群中国地质科学院地质力学研究所北京100081 五矿勘查开发有限公司北京100089 自然资源部活动构造与地质安全重点实验室北京100081

东昆仑古特提斯造山带经历了从洋壳俯冲到陆-陆碰撞及后碰撞伸展的造山过程,但对古特提斯洋闭合时间一直存在争议,争论的焦点集中在晚二叠世格曲组沉积盆地原型及中上二叠统之间不整合关系代表的构造事件。本文对东昆仑红石山地区格曲... 详细信息

东昆仑古特提斯造山带经历了从洋壳俯冲到陆-陆碰撞及后碰撞伸展的造山过程,但对古特提斯洋闭合时间一直存在争议,争论的焦点集中在晚二叠世格曲组沉积盆地原型及中上二叠统之间不整合关系代表的构造事件。本文对东昆仑红石山地区格曲组火山岩开展了锆石U-Pb年代学与岩石地球化学研究,结果表明,岩石富集Rb、Th、Ba等大离子亲石元素(LILE)而亏损Nb、Ta、Ti、P等高场强元素(HFSE),具有大陆岩浆弧的地球化学特征。火山岩具有高Ba/Th比值(53.6)、Th/Ce比值(0.23)、Nb/Ta比值(18.35)及低Dy/Yb比值(1.42),表明晚二叠世火山岩由枕状玄武岩和洋底沉积物等洋壳物质俯冲至60 km左右深度时熔融所形成。锆石U-Pb定年表明,格曲组下部碎屑岩段流纹质凝灰岩和英安质沉凝灰岩206Pb/238U加权平均年龄分别为(257.5±2.5)Ma和(256.2±4.8)Ma,上部灰岩段粗安质晶屑凝灰岩206Pb/238U加权平均年龄为(251.8±2.3) Ma。结合区域上已报道的格曲组及花岗岩研究成果,认为古特提斯洋在晚二叠世开始向北俯冲消减,沉积于弧前盆地的格曲组为古特提斯洋向北初始俯冲的沉积响应,而格曲组与下伏地层之间的角度不整合关系记录了古特提斯洋晚二叠世开始向北俯冲这一构造事件。

关键词：锆石U-Pb年龄地球化学弧前盆地格曲组东昆仑

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青藏高原南部玛不错湖面变化及其对气候环境的指示

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现代地质 2024年第2期38卷 477-486页

作者：韩建恩邵兆刚张雪锋余苇孟庆伟余佳王津朱大岗中国地质科学院地质力学研究所北京100081 自然资源部古地磁与古构造重建重点实验室北京100081 中国地质科学院北京100037 黄河水利职业技术学院河南开封475004

青藏高原藏南谷地中部的玛不错湖位于印度夏季风和西风影响区内,对气候变化响应敏感。不同年份相同时相的遥感影像反映了湖面的变化特征,是探究区域气候变化的重要对象。湖岸堤和湖成阶地沉积物记录了湖面水位变化的历史,可帮助认识区... 详细信息

青藏高原藏南谷地中部的玛不错湖位于印度夏季风和西风影响区内,对气候变化响应敏感。不同年份相同时相的遥感影像反映了湖面的变化特征,是探究区域气候变化的重要对象。湖岸堤和湖成阶地沉积物记录了湖面水位变化的历史,可帮助认识区域古气候的变化和定量重建湖面波动。本文运用ArcGIS遥感解译、AMS ^( 14)C测年和DEM等方法确定玛不错北岸湖岸堤的高程和湖岸阶地的年代,结合湖成阶地剖面的沉积序列指示的湖面变化过程,重建晚更新世以来玛不错湖面的变化过程。S_(7)-S_(4)湖岸堤阶段,14256~13984 a BP之前,玛不错与其南侧的嘎拉错、多庆错为一体,是一个统一的大湖。S_(7)→S_(4),湖平面总体上呈逐渐下降的趋势,玛不错与多庆错、嘎拉错先后分离形成独立湖泊。S_(4)→S_(3)阶段,湖面逐渐上涨,分离的玛不错与嘎拉错重新连为一体,但这个过程持续时间比较短暂。S_(3)-S_(1)阶段,14256~13984 a BP之后,玛不错成为一个独立的湖泊。S_(3)→S_(1)阶段,湖面整体上呈逐渐下降的趋势。综合来看,晚更新世以来玛不错湖面经历了高→低→高→低的变化过程,湖面升降变化主要受区域大气降水和冰川融水的控制,反映了印度季风的强弱变化和全球气候的变化。近十年来遥感解译的湖面变化显示,玛不错2013-2015年期间呈萎缩状态,2016-2018年期间呈扩张状态,反映近年来青藏高原藏南谷地中部的气候有向暖湿化发展的趋势。该认识对于全球气候变暖背景下青藏高原气候环境变化趋势研究领域提供了新的参考。

关键词：青藏高原玛不错遥感影像湖岸堤湖平面古环境变化

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Natural epitope variants of the hepatitis C virus impair cytotoxic T lymphocyte activity

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World Journal of Gastroenterology 2010年第16期16卷 1953-1969页

作者： Shuping Wang Rico Buchli Jennifer Schiller jianen Gao Rodney S VanGundy William H Hildebrand David D Eckels Department of Pathology University of Utah Pure Protein L.L.C. Oklahoma CityOK 73104United States Jennifer SchillerJianen GaoDepartment of PediatricsMedical College of Wisconsin Department of Pediatrics Medical College of Wisconsin Pure Protein L.L.C. Department of Microbiology and Immunology Health Sciences CenterUniversity of Oklahoma

AIM:To understand how interactions between hepatitis C virus(HCV) and the host's immune system might lead to viral persistence or effective elimination of ***:Nucleotides 3519-3935 of the non-structural 3(NS3) region were amplified by using reverse transcription polymerase chain reaction(PCR).PCR products of the HCV NS3 regions were integrated into a PCR T7TOPO TA vector and then sequenced in both directions using an automated DNA *** major histocompatibility complex binding levels of wild-type and variant peptides were performed by fluorescence polarization-based peptide competition *** with wild type and variant sequences of NS3 were synthesized locally using F-moc chemistry and purified by high-performance liquid *** cytotoxic T lymphocytes(CTLs) clones toward HCV NS3 wild-type peptides were generated through limiting dilution *** CTL clones specifically recognizing HCV NS3 wild-type peptides were tested by tetramer staining and flow *** activity of CTL clones was measured using target cells labeled with the fluorescence enhancing ligand,DELFIA ***:The pattern of natural variants within three human leukocyte antigen(HLA)-A2-restricted NS3 epitopes has been examined in one patient with chronic HCV infection at 12,28 and 63 mo *** obtained may provide convincing evidence of immune selection pressure for all epitopes *** analysis of the extensive sequence variation found within these NS3 epitopes favors a Darwinian selection model of variant *** within the epitopes coincided with the decline of CTL responses,and peptide-binding studies suggested a signif icant impact of the mutation on T cell recognition rather than peptide presentation by HLA *** most variants were either not recognized or elicited low responses,such could antagonize CTL responses to target cells pulsed with wild-type ***:Cross-

关键词： Epitopes Human T Cells Cytotoxic Anergy Viral

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Late Cenozoic Stratigraphy and Paleomagnetic Chronology of the Zanda Basin,Tibet, and Records of the Uplift of the Qinghai-Tibet Plateau

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Acta Geologica Sinica(English Edition) 2008年第1期82卷 63-72页

作者： MENG Xiangang ZHU Dagang SHAO Zhaogang YANG Chaobin HAN jianen YU Jia MENG Qingwei LU Rongping Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China Land and Resources Department of the Tibet Autonomous Region Lhasa 850000 China School of Earth Sciences and Mineral Resources China University of Geosciences Beijing 100083 China

The characteristics of Late Cenozoic tectonic uplift of the southern margin of the Qinghai- Tibet Plateau may be inferred from fluvio-lacustrine strata in the Zanda basin, Ngari, Tibet. Magnetostratigraphic study shows that the very thick fluvio-lacustrine strata in the basin are 5.89- 0.78 Ma old and that their deposition persisted for 5.11 Ma, i.e. starting at the end of the Miocene and ending at the end of the early Pleistocene, with the Quaternary glacial stage starting in the area no later than 1.58 Ma. Analysis of the sedimentary environment indicates that the Zanda basin on the southern Qinghai-Tibet Plateau began uplift at -5.89 Ma, later than the northern Qinghai-Tibet Plateau. Presence of gravel beds in the Guge and Qangze Formations reflects that strong uplift took place at -5.15 and -2.71 Ma, with the uplift peaking at -2.71 Ma.

关键词： Late Cenozoic fluvio-lacustrine strata paleomagnetic chronology uplift of Qinghai-Tibet Plateau Zanda basin

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Double Hopf Bifurcation Analysis of a Coupled Dynamic System

Double Hopf Bifurcation Analysis of a Coupled Dynamic System

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The 16th Annual Conference of Hong Kong Society of Theoretical and Applied Mechanics 2012、The 1st Mainland-Hong Kong Youth Forum on Mechanics 2012、The 8th Shanghai-Hong Kong Forum on Mechanics and Its Application 2012

作者： Yan zhou Wei Zhang Min Sun jianen Chen College of Mechanical Engineering Beijing University of Technology BeijingChina

Recently,Maccari developed a new asymptotic perturbation method(AP method) to obtain the solution of the coupled *** AP method is based on large temporal rescalings and balancing of harmonic terms with simple *** a certain sense the AP method can be considered as an attempt to link the most useful characteristics of harmonic balance and multiple scale methods. Maccari investigated the system of two non-linearly coupled van der Pol oscillators under parametric

关键词： Double Hopf Bifurcation Analysis of a Coupled Dynamic System

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First Report of Late Miocene Mammals Including Chilotherium in the Xining Basin,NE Tibetan Plateau,China

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Acta Geologica Sinica(English Edition) 2017年第3期91卷 1135-1136页

作者： HAN jianen SHAO Zhaogang XU Biao ZHANG Qianqian YU Jia MENG Qingwei MENG Xiangang ZHU Dagang WANG Jin Institute of Geomechanics Chinese Academy of Geological Sciences China University of Geosciences(Beijing) Northeast Agricultural University Chinese Academy of Geological Sciences

Objective Xining basin is located in the northeastern Qinghai- Tibetan Plateau, which tectonic location belongs to a junction of the Kunlun and Qilian mountains. The southern, northern and western parts of the basin are restricted by the Laji, Daban and Riyue mountains fault zones, and go eastward into the Longzhong basin in Gansu Province. A succession of Cenozoic lacustrine sedimentary strata has been well developed in the Xining basin, with sediments over 800 m thick.

关键词： of as In on in First Report of Late Miocene Mammals Including Chilotherium in the Xining Basin,NE Tibetan Plateau,China

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