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Methylene blue intercalated vanadium oxide with synergistic energy storage mechanism for highly efficient aqueous zinc ion batteries

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Journal of Energy Chemistry 2023年第2期77卷 269-279,I0007页

作者： Yunxiao Tong Ying Zang Senda Su Yinggui Zhang Junzhuo Fang Yongqing Yang xiaoman li Xiang Wu Fuming Chen Jianhua Hou Min Luo State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering School of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021NingxiaChina School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870LiaoningChina Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials School of Physics and Telecommunication EngineeringSouth China Normal UniversityGuangzhou 510006GuangdongChina College of Environment Science and Engineering Yangzhou UniversityYangzhou 225009JiangsuChina

With the rise of aqueous multivalent rechargeable batteries,inorganic-organic hybrid cathodes have attracted more and more attention due to the complement of each other’s ***,a strategy of designing hybrid cathode is adopted for high efficient aqueous zinc-ion batteries(AZIBs).Methylene blue(MB)intercalated vanadium oxide(HVO-MB)was synthesized through sol-gel and ion exchange *** with other organic-inorganic intercalation cathode,not only can the MB intercalation enlarge the HVO interlayer spacing to improve ion mobility,but also provide coordination reactions with the Zn^(2+)to enhance the intrinsic electrochemical reaction kinetics of the hybrid *** a key component for the cathode of AZIBs,HVO-MB contributes a specific capacity of 418 mA h g^(-1) at 0.1 A g^(-1),high rate capability(243 mA h g^(-1) at 5 A g^(-1))and extraordinary stability(88%of capacity retention after 2000cycles at a high current density of 5 A g^(-1))in 3 M Zn(CF_(3)SO_(3))_(2) aqueous *** electrochemical kinetics reveals HVO-MB characterized with large pseudocapacitance charge storage behavior due to the fast ion migration provided by the coordination reaction and expanded interlayer ***,a mixed energy storage mechanism involving Zn^(2+)insertion and coordination reaction is confirmed by various ex-situ ***,this work opens up a new path for constructing the high performance cathode of AZIBs through organic-inorganic hybridization.

关键词： Synergistic energy storage mechanism Aqueous zinc-ion batteries Vanadium oxides Pre-intercalation strategy Methylene blue

Broadband interference of received pulse for single normal mode and solitary internal wave localization

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Chinese Journal of Acoustics 2020年第2期39卷 151-163页

作者： PIAO Shengchun ZHANG Shizhao liU Jiaqi li xiaoman IQBAL Kashif Acoustic Science and Technology Laboratory Harbin Engineering University Harbin 150001 Key Laboratory of Marine Information Acquisition and Security Harbin Engineering UniversityMinistry of Industry and Information Technology Harbin 150001 College of Underwater Acoustic Engineering Harbin Engineering University Harbin 150001

To analyze the solitary internal wave(SIW) influence on acoustic field interference pattern and thereby monitor SIW, for broadband pulse signal propagating through SIWs, we adopt a parabolic equation model, and simulate the variation of received single normal mode(SNM) pulse sequence with SIW position, and analyze the spatiotemporal interference characteristics and mechanism of the sequence. Based on the coupled mode theory, we derive the relationship between SIW position and interference striation slope(ISS). The relationship can monitor the SIW position precisely, with greatly improved precision and robustness compared with previous work. Furthermore, based on the SNM interference pattern periodicity in frequency, we also develop another method to estimate SIW range, with better real-time property than the first method. The SIW-normal mode interference relationship can be used for improving acoustic field localization in the presence of SIWs, which has great value for oceanology,marine engineering, marine military and so on. Besides, the relationship can be expanded to other detection for local variation, e.g., detecting metal flaw and locating dramatic variation in seabed topography.

关键词： pulse mode wave

Pan-genome of Raphanus highlights genetic variation and introgression among domesticated,wild,and weedy radishes

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Molecular Plant 2021年第12期14卷 2032-2055页

作者： Xiaohui Zhang Tongjin liu Jinglei Wang Peng Wang Yang Qiu Wei Zhao Shuai Pang xiaoman li Haiping Wang Jiangping Song Wenlin Zhang Wenlong Yang Yuyan Sun Xixiang li Key Laboratory of Biology and Genetic improvement of Horticultural Crops Ministry of AgricultureInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China College of Horticulture Jinling Institute of TechnologyNanjing 210038China Institute of Vegetables Research Zhejiang Academy of Agricultural SciencesHangzhou 310021China Berry Genomics Corporation Beijing 100015China

Post-polyploid diploidization associated with descending dysploidy and interspecific introgression drives plant genome evolution by unclear *** is an economically and ecologically important Brassiceae genus and model system for studying post-polyploidization genome evolution and ***,we report the de novo sequence assemblies for 11 genomes covering most of the typical sub-species and varieties of domesticated,wild and weedy radishes from East Asia,South Asia,Europe,and *** among the species,sub-species,and South/East Asian types coincided with Quaternary glaciations.A genus-level pan-genome was constructed with family-based,locus-based,and graph-based methods,and whole-genome comparisons revealed genetic variations ranging from single-nucleotide polymorphisms(SNPs)to inversions and translocations of whole ancestral karyotype(AK)*** gene flow occurred between wild,weedy,and domesticated *** fre-quencies of genome reshuffling,biased retention,and large-fragment translocation have shaped the genomic *** variety-specific gene-rich blocks showed large structural *** translocation and tandem duplication of dispensable genes were revealed in two large rearrangement-rich *** resistance genes mostly resided on specific and dispensable *** causing the loss of function of enzymes modulating gibberellin deactivation were identified and could play an important role in phenotype divergence and adaptive *** study provides new insights into the genomic evolution underlying post-polyploid diploidization and lays the foundation for genetic improve-ment of radish crops,biological control of weeds,and protection of wild species'germplasms.

关键词： Raphanus pan-genomes post-polyploid diploidization gene flow speciation

铝硅酸盐玻璃中基于局域过剩电荷模型的Bi近红外发光调控

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硅酸盐学报 2022年第4期50卷 902-912页

作者：李晓曼郭海曲阜师范大学物理工程学院山东曲阜273165 浙江师范大学物理与电子信息工程学院浙江金华321004

玻璃中铋离子的超宽带近红外(NIR)发光应用前景广泛,但Bi近红外中心的稳定性问题限制了其实际应用。为此,本工作以铋掺杂钇铝硅酸盐玻璃为研究对象,对可有效调控铋近红外发光行为的局域过剩电荷模型进行了补充与拓展,通过调控玻璃网络... 详细信息

玻璃中铋离子的超宽带近红外(NIR)发光应用前景广泛,但Bi近红外中心的稳定性问题限制了其实际应用。为此,本工作以铋掺杂钇铝硅酸盐玻璃为研究对象,对可有效调控铋近红外发光行为的局域过剩电荷模型进行了补充与拓展,通过调控玻璃网络中引入的网络修饰体(Y^(3+))和低于四价的可取代Si^(4+)的网络形成体(Al^(3+)),在铋离子周围建成了局域过剩负电荷场,从而有效调控了铋离子在钇铝硅酸盐玻璃中的近红外发光行为(包括其价态、吸收和发光强度与峰位);同时提出了Bi近红外中心的分布规律:Bi^(0)主要分布在Si-O-Si/Si-O-Al网络结构多元环中,而Bi^(+)主要分布在Si网络框架结构的缝隙沟道内。一方面,解决了钇铝硅酸盐玻璃,甚至其他碱金属、碱土金属(锂/钠/钾、镁/钙/锶/钡等)铝硅酸盐玻璃中铋近红外中心的稳定性问题,为铋激光玻璃的设计和后期光纤制备奠定了实验与理论基础;另一方面,也证实了局域过剩电荷模型的有效性和普适性,为其他多价态发光离子(例如Eu、Ce、Cu、Ag、Sn等)的价态稳定化和网络分布可调化提供了新思路、新方法。

关键词：局域过剩电荷模型铋近红外发光钇铝硅酸盐玻璃

The design of multi-function nursing wheelchair

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Computer Aided Drafting,Design and Manufacturing 2013年第1期23卷 68-70页

作者： li xiaoman WANG Zhengxing ZHANG Shuai li Fei ZHANG li School of Machinery and Automobile Engineering Hefei University of Technology Zhejiang Henglin Chair Industry Co. Ltd.

In order to reduce nursing intensity and improve freedom of the elderly and the disabled, a multi-function nursing wheelchair which can switch chair to bed and realize many kinds of posture transformation is designed. This paper introduces the mechanical structure design （position adjustment mechanism and variable wheelbase mechanism） and control design of posture transformation unit of multifunctional nursing wheelchair.

关键词： posture transformation position adjustment mechanism variable wheelbase the control system design

Blue–green color-tunable emissions in novel transparent Sr2LuF7:Eu/Tb glass-ceramics for WLEDs

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Chinese Optics Letters 2020年第5期18卷 44-49页

作者： xiaoman li Shaoshuai Zhou Rongfei Wei Xueyun liu Bingqiang Cao Hai Guo School of Physics and Physical Engineering Shandong Provincial Key Laboratory of Laser Polarization and Information TechnologyQufu Normal UniversityQufu 273165China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Department of Physics Zhejiang Normal UniversityJinhua 321004China Laboratory of Infrared Materials and Devices Advanced Technology Research InstituteNingbo UniversityNingbo 315211China

To introduce ordered nano-structures inside a transparent amorphous matrix with superior optical and mechanical properties bears scientific and technological importance,yet limited success has been ***,via simple melting-quenching and subsequent thermal activation,we report the successful preparation of transparent nano-structured glass-ceramics embedded in Sr2Lu F7 nano-crystals(~26 nm),as evidenced by X-ray diffraction,transmission electron microscopy(TEM),and high resolution *** successful incorporation of dopants into formed Sr2Lu F7 nano-crystals with low phonon energy results in highly tunable blue–green photoemission,which depends on excitation wavelength,dopant type,and *** found that Eu3+and Eu2+ions co-exist in this hybrid optical material,accompanied by the broadband blue emission of Eu2+and sharp red emissions of Eu3+.A series of optical characterizations are summoned,including emission/excitation spectrum and decay curve measurement,to reveal the reduction mechanism of Eu3+to Eu2+.Furthermore,near green–white photoemission is achieved via the enrichment of Tb3+/Eu3+into crystallized Sr2Lu F7 *** temperature-dependent visible photoemission reveals thermal activation energy increases with the precipitation of Sr2Lu F7 nano-crystals in a glass matrix,suggesting better thermal stability of glass-ceramics than precursor *** results could not only deepen the understanding of glass-ceramics but also indicate the promising potential of Eu3+/Tb3+-ions-doped Sr2Lu F7 glass-ceramics for UV pumped white light emitting diodes(WLEDs)with good thermal stability.

关键词： glass-ceramics:Sr2LuF7nano-crystals WLED:luminescent materials

人机交互对工作创新行为的影响机制研究——来自智慧电厂的证据

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外国经济与管理 2024年第10期46卷 105-120页

作者：李晓曼陈丽首都经济贸易大学劳动经济学院北京100070 厦门大学经济学院福建厦门361005

在“弱人工智能”时代,人工智能技术还无法在岗位层面实现对员工的完全替代,却可在更深层次的角色分工层面实现部分工作角色的替代,即成为员工的协作者,由此组织中便出现了人机交互的全新工作方式。基于压力认知评价理论,本文探讨了两... 详细信息

在“弱人工智能”时代,人工智能技术还无法在岗位层面实现对员工的完全替代,却可在更深层次的角色分工层面实现部分工作角色的替代,即成为员工的协作者,由此组织中便出现了人机交互的全新工作方式。基于压力认知评价理论,本文探讨了两种差异化的交互类型——人机增强型交互和人机阻滞型交互对工作创新行为的影响机制,通过对多时点搜集的203名来自智慧电厂员工的数据进行分析,结果发现:(1)增强型交互正向影响工作创新行为,而阻滞型交互负向抑制工作创新行为;(2)技术替代感在人机交互与工作创新行为之间起中介作用;(3)工匠精神正向调节增强型交互、负向调节阻滞型交互对技术替代感的作用。本研究突破了传统人—技术互动关系的研究视角(岗位、任务等),从认知维度探索了工业智能与员工的竞合关系及其组织后果,为管理者深入理解人机全新工作模式从而实施有效管理策略促进员工协同技术进行工作创新提供了实践启示。

关键词：人工智能人机增强型交互人机阻滞型交互技术替代感工作创新行为工匠精神

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我国劳务派遣问题刍议

中国人力资源开发 2009年第6期26卷 88-89页

作者：李晓曼首都经济贸易大学

本文针对我国劳务派遣中存在的问题,解析了实际就业过程中派遣供需双方对灵活性和保障性的诉求冲突,提出了平衡劳务派遣灵活性与保障性的相关对策。

关键词：劳务派遣灵活性保障性平衡

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共价有机框架材料作为金属离子电池正极材料

化学进展 2024年第3期36卷 430-447页

作者：周文博李晓曼罗民宁夏大学化学化工学院煤炭高效利用与绿色化工国家重点实验室银川750021

共价有机框架材料(Covalent organic frameworks,COFs)是一种具有周期性二维或三维网状结构的多孔有机材料,其结构由两种或更多有机分子通过共价键连接而成。COFs具有骨架密度低、比表面积大、孔隙率高、结构可设计性和功能可修饰性等特... 详细信息

共价有机框架材料(Covalent organic frameworks,COFs)是一种具有周期性二维或三维网状结构的多孔有机材料,其结构由两种或更多有机分子通过共价键连接而成。COFs具有骨架密度低、比表面积大、孔隙率高、结构可设计性和功能可修饰性等特点,在储能领域展现出巨大的潜力。由于其丰富的氧化还原活性位点和开放的框架结构,COFs作为金属离子电池正极材料有着独特的优势。然而COFs导电性差、能量密度低、可用的活性位点较少和离子传输通道的阻塞等缺陷限制了其在储能领域的应用。本文系统综述了COFs作为金属离子电池正极材料的最新研究现状,包括对COFs的种类、合成方法以及设计策略进行总结,从不同活性基团的角度对其电化学储能机理进行概述,并介绍了COFs在不同金属离子电池方面的应用。最后总结和展望了COFs在储能领域应用的前景和挑战。

关键词：共价有机框架材料储能氧化还原活性位点金属离子电池