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Calcium ion pinned vanadium oxide cathode for high-capacity and long-life aqueous rechargeable zinc-ion batteries

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Science China Chemistry 2020年第12期63卷 1767-1776页

作者： Min Du Feng Zhang Xiaofei Zhang Wentao Dong yuanhua sang Jianjun Wang Hong Liu Shuhua Wang State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinan 250022China

Rechargeable aqueous zinc ion batteries (ZIBs),with the easy operation,cost effectiveness,and high safety,are emerging candidates for high-energy wearable/portable energy storage ***,the unsatisfactory energy density and undesired long-term cycling performance of the cathode hinder the development of ***,we report the chemical preintercalation of a small amount of calcium ions into V2O5 as the cathode *** cathode of Ca0.04V2O5·1.74H2O (CVO)was demonstrated to have a high specific capacity of 400 mA h g^-1at the current density of 0.05 A g^-1and 187 mA h g^-1at 10 A g^-1,along with impressive capacity retention (100%capacity retention at 10 A g^-1 for 3,000 cycles).Meanwhile,the CVO//Zn battery exhibits a high energy density of 308 Wh kg^-1and a power density of 467 W kg^-1at 0.5 A g^-*** superior performance originates from the pinning effect of the calcium ions and the lubricating effect of the structural *** energy storage mechanism of the CVO cathode was also investigated in *** new phase (Zn3(OH)2V2O7·2H2O) generated upon cycling participates in the electrochemical reaction and thus contributes to the excellent electrochemical *** small amount of Ca^2+ pre-inserted into the interlayer of V2O5 sheds light on constructing cathodes with high energy density for ZIBs.

关键词： aqueous zinc-ion battery ion pre-intercalation vanadium pentoxide phase transition energy storage mechanism

Fabrication and laser output of transparent Nd:YAG ceramics from microwave synthesized precursors

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Rare Metals 2011年第6期30卷 607-615页

作者： ZHANG Xiaolin LIU Duo WANGJiyang YU Haohai QIN Haiming sang yuanhua LIU Hong State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China

We report the laser output of transparent Nd：YAG （Nd：Y3Al5O12） ceramics fabricated from Nd：YAG precursors through the microwave-assisted homogenous precipitation （MAHP） method. Pure phase and uniform Nd：YAG nano-powders with average sizes less than 100 nm were obtained by heating treatment *** Nd：YAG precursor particles aged for 6 d in vessel with humidity of 30%-50% at 25℃. Transparent Nd：YAG ceramic pellets were obtained by vacuum sintering at 1730℃ for 10 h. Laser output （305 roW） with a slope efficiency of 5.1% was realized through an end-pumped configuration. Our results indicate that the MAHP method could potentially be used for the fabrication of laser ceramic products,

关键词： precipitation Nd:YAG transparent ceramics laser output

极化电极均匀化设计调控铌酸锂周期极化占空比

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人工晶体学报 2024年第3期53卷 449-457,I0004页

作者：刘齐鲁郑名扬高洋张龙喜宋于坤王孚雷刘宏王东周桑元华山东大学晶体材料国家重点实验室济南250100 济南量子技术研究院济南250022

准相位匹配(QPM)理论上能够充分利用晶体的非线性光学系数、无走离效应,在光学频率转换中具有非常大的优势。铌酸锂晶体(LiNbO_(3),LN)具有高非线性光学系数、宽通光范围和低生长成本,因此基于铌酸锂铁电畴结构设计获得的周期极化铌酸... 详细信息

准相位匹配(QPM)理论上能够充分利用晶体的非线性光学系数、无走离效应,在光学频率转换中具有非常大的优势。铌酸锂晶体(LiNbO_(3),LN)具有高非线性光学系数、宽通光范围和低生长成本,因此基于铌酸锂铁电畴结构设计获得的周期极化铌酸锂晶体(PPLN)成为准相位匹配技术的理想选择。目前制备PPLN晶体最常用的方法是外加电场极化法,制备过程中,电极结构的参数对极化过程至关重要。本研究基于实时监测下的电场极化过程,结合有限元分析,对不同电极结构的空间电场分布进行分析,发现电极边缘出现电场极大值,而电极内部的电场分布相对均匀。基于这一现象,本文提出了一种多通道电极结构的设计方案,以实现极化空间内部电场的均匀分布。本研究采用十通道电极进行极化实验,通过表征每个通道的占空比,发现内部八个通道的占空比大小均匀且在50%±5%范围,通过晶体的倍频实验验证发现十通道周期极化样品中中间通道相对边缘通道的非线性转换效率明显提升并分布均匀,证明其中间通道具有占空比可控的均匀极化结构,为极化空间电场均匀化设计提供了一种高效合理的设计方案。

关键词：铌酸锂周期极化铌酸锂非线性光学空间电场分布有限元分析

Synthesis and characterization of lithium niobium borate glasses containing neodymium

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Journal of Rare Earths 2016年第12期34卷 1199-1205页

作者： W.H.A.Kamaruddin M.S.Rohani M.R.Sahar LIU Hong sang yuanhua AOMRG Lab Physics Department Faculty of Science Universiti Teknologi Malaysia State Key Laboratory of Crystal Materials Shandong University

A series of（90–x）Li2B4O7-10Nb2O5-xNd2O3 glass samples（x=0, 5 mol.%, 10 mol.%, 15 mol.%, 20 mol.% and 25 mol.%） were synthesized using melt quenching technique. X-ray diffraction（XRD）, differential thermal analyzer（DTA）, Fourier transformed infrared（FTIR）, ultraviolet-visible-near-infrared（UV-Vis-NIR） spectrometer and photoluminescence（PL） spectroscopic characterizations were made to examine the influence of Nd3＋ concentration on the physical, structural and optical properties. Various physical properties such as glasses density, molar volume, thermal stability, ion concentration, polar on radius, inter-nuclear distance, field strength, cut-off wavelength, energy band gap and Urbach energy were calculated. The samples were amorphous in nature and confirmed from XRD pattern. The FTIR spectra revealed the presence of BO3 and BO4 functional groups. UV-Vis-NIR spectra exhibited nine prominent bands centered at 353, 430, 475, 524, 583, 681, 745, 803, 875 nm corresponding to the transitions from the ground state to ^4D（3/2）, ^2P（1/2）, ^2G（9/2）, ^4G（7/2）, ^4G（5/2）, ^4F（9/2）, ^4F（7/2）, ^4F（5/2）, ^4F（3/2） excited states, respectively. Moreover, the emission spectra at 355 nm excitation displayed three peaks centered at 903 nm（^4F（3/2）→^4I（9/2））, 1059 nm（^4F（3/2）→^4I（11/2）） and 1333 nm（^4F（3/2）→^4I（13/2））, respectively. Fluorescence lifetime was recorded between 53.69 to 28.43 μs. It was found that varying concentration of Nd^（3＋） ions strongly affected the physical, structural and optical properties of the glass samples.

关键词： borate glass neodymium optical properties band gap luminescence rare earths

Microstructure and domain engineering of lithium niobate crystal films for integrated photonic applications

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Light(Science & Applications) 2020年第1期9卷 71-88页

作者： Dehui Sun Yunwu Zhang Dongzhou Wang Wei Song Xiaoyan Liu Jinbo Pang Deqiang Geng yuanhua sang Hong Liu Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanJinan 250022China Jinan Institute of Quantum Technology Jinan 250101China CETC Deqing Huaying Electronics Co. Ltd.Huzhou 313200China Crystrong Photoelectric Technology Co. Ltd.Jinan 250100China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China

Recently,integrated photonics has attracted considerable interest owing to its wide application in optical communication and quantum *** the numerous photonic materials,lithium niobate film on insulator(LNOI)has become a promising photonic platform owing to its electro-optic and nonlinear optical properties along with ultralow-loss and high-confinement nanophotonic lithium niobate waveguides fabricated by the complementary metal-oxide-semiconductor(CMOS)-compatible microstructure engineering of ***,ferroelectric domain engineering in combination with nanophotonic waveguides on LNOI is gradually accelerating the development of integrated nonlinear photonics,which will play an important role in quantum technologies because of its ability to be integrated with the generation,processing,and auxiliary detection of the quantum states of ***,we review the recent progress in CMOS-compatible microstructure engineering and domain engineering of LNOI for integrated lithium niobate photonics involving photonic modulation and nonlinear *** believe that the great progress in integrated photonics on LNOI will lead to a new generation of ***,there remains an urgent need for efficient methods for the preparation of LNOI that are suitable for large-scale and low-cost manufacturing of integrated photonic devices and systems.

关键词： lithium quantum Microstructure

Weaker Interactions in Zn^(2+)and Organic Ion-pre-intercalated Vanadium Oxide toward Highly Reversible Zinc-ion Batteries

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Energy & Environmental Materials 2021年第4期4卷 620-630页

作者： Feng Zhang Xiucai Sun Min Du Xiaofei Zhang Wentao Dong yuanhua sang Jianjun Wang Yanlu Li Hong Liu Shuhua Wang State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinan 250022China

Driven by safety issues,environmental concerns,and high costs,rechargeable aqueous zinc-ion batteries(ZIBs)have received increasing attention in recent years owing to their unique ***,the sluggish kinetics of divalent charge Zn^(2+)in the cathode materials caused by the strong electrostatic interaction and their unsatisfactory cycle life hinder the development of ***,organic cations and Zn^(2+)ions co-pre-inserted vanadium oxide([N(CH_(3))_(4)]_(0.77),Zn_(0.23))V_(8)O_(20)·3.8H_(2)O are reported as the cathode for ultra-stable aqueous ZIBs,in which the weaker electrostatic interactions between Zn^(2+)and organic ion-pinned vanadium oxide can induce the high reversibility of Zn^(2+)insertion and extraction,thereby improving the cycle *** is demonstrated that([N(CH_(3))_(4)]_(0.77),Zn_(0.23))V_(8)O_(20)·3.8H_(2)O cathodes deliver a discharge capacity of 181 mA h g^(-1)at8 A g^(-1)and ultra-long life span(99.5%capacity retention after 2000 cycles).A reversible Zn^(2+)/H^(+)ions(de)intercalation storage process and pseudocapacitive charge storage are *** weaker interactions between organic ion and Zn^(2+)open a novel avenue for the design of highly reversible cathode materials with long-term cycling stability.

关键词： [N(CH_(3))_(4),Zn]V_(8)O_(20)·3.8H_(2)O nanosheets aqueous zinc-ion battery highly reversible organic ion pre-intercalation zinc-carbon interactions

High Performance Supercapacitors from Hierarchical Porous Carbon Aerogels Based on Sliced Bread

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Chinese Journal of Chemistry 2017年第5期35卷 699-706页

作者： Pin Hao Guanwei Cui Xifeng Shi Junfeng Xie Xinyuan Xia yuanhua sang C. P. Wong Hong Liu Bo Tang College of Chemistry Chemical Engineering and Materials Science Institute of Materials and Clean Energy Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals Shandong Normal University Jinan Shandong 250014 China State Key Laboratory of Crystal Materials Shandong University Jinan Shandong 250100 China School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30032 the United States

Supercapacitor electrodes with porous structure based on renewable,eco-friendly and cost-effective materials have caused extensive concern in energy storage *** bread,the common food ingredient,mainly containing glucose polymers,can be a promising candidate to fabricate porous supercapacitor *** porous carbon aerogels by using sliced bread as the raw material were synthesized through a carefully controlled aerogel carbonization-activation ***,the specific surface area and the pore size distribution of the porous carbon were controlled by the activation temperature,which result in the varied performance of the carbon aerogel as a *** investigation measurements revealed that the hierarchical porous carbon aerogel shows an excellent capacitor behavior for construction of a symmetric supercapacitor,which demonstrated a high specific capacitance of 229 F·g-1 at discharge current of 0.2 A·*** addition,the fabricated supercapacitor displayed excellent capacitance retention of 95.5% over 5000 cycles.

关键词： carbon aerogel sliced bread supercapacitor energy density cycling stability

Oxygen vacancies and N-doping in organic–inorganic pre-intercalated vanadium oxide for high-performance aqueous zinc-ion batteries

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InfoMat 2022年第11期4卷 106-118页

作者： Feng Zhang Min Du Zhenyu Miao Houzhen Li Wentao Dong yuanhua sang Hechun Jiang Wenzhi Li Hong Liu Shuhua Wang State Key Laboratory of Crystal Materials Shandong UniversityJinanPeople's Republic of China School of Materials Science and Engineering Liaocheng UniversityLiaochengPeople's Republic of China Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinanPeople's Republic of China

Pre-intercalation of metal ions into vanadium oxide is an effective strategy for optimizing the performance of rechargeable zinc-ion battery(ZIB)***,the battery long-lifespan achievement and high-capacity retention remain a *** the electronic conductivity while simultaneously prompting the cathode diffusion kinetics can improve ZIB electrochemical ***,N-doped vanadium oxide(N-(Zn,en)VO)via defect engineering is reported as cathode for aqueous *** annihilation and electron paramagnetic resonance clearly indicate oxygen vacancies in the *** functional theory(DFT)calculations show that N-doping and oxygen vacancies concurrently increase the electronic conductivity and accelerate the diffusion kinetics of zinc ***,the presence of oxygen vacancies substantially increases the storage sites of zinc ***,N-(Zn,en)VO exhibits excellent electrochemical performance,including a peak capacity of 420.5 mA h g^(-1)at 0.05 A g^(-1),a high power density of more than 10000 W kg^(-1)at 65.3 Wh kg^(-1),and a long cycle life at 5 A g^(-1)(4500 cycles without capacity decay).The methodology adopted in our study can be applied to other cathodic materials to improve their performance and extend their practical applications.

关键词： aqueous zinc ion batteries cathode nitrogen doping organic–inorganic pre-intercalation oxygen vacancy

Intracellular pH-responsive iron-catechin nanoparticles with osteogenic/anti-adipogenic and immunomodulatory effects for efficient bone repair

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Nano Research 2022年第2期15卷 1153-1161页

作者： Ying Kong Feng Liu Baojin Ma Wenhan Wang Liang Li Xiaoying Xu Zhaoyang Sun Hongru Yang yuanhua sang Dong Li Gang Li Chao Liu Shuhua Wang Hong Liu State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Department of Periodontology School and Hospital of StomatologyCheeloo College of MedicineShandong University&Shandong Key Laboratory of Oral Tissue Regeneration&Shandong Engineering Laboratory for Dental Materials and Oral Tissue RegenerationJinan 250012China Department of Pharmacology School of Basic Medical SciencesShandong UniversityJinan 250012China Department of Pathology Jinan Women and Childrens Health HospitalJinan 250000China Department of Oral and Maxillofacial Surgery Qilu Hospital of Shandong UniversityJinan 250012China Cryomedicine Laboratory Qilu Hospital of Shandong UniversityJinan 250012China Neurological Surgery Qilu Hospital of Shandong UniversityJinan 250012China Advanced Medical Research Institute Shandong UniversityJinan 250100China Institute for Advanced Interdisciplinary Research University of JinanJinan 250022China

Osteoimmunomodulation was identified as a new and important strategy to enhance osteogenic differentiation together with other osteogenic ***,approaches regulating osteogenic differentiation and macrophage polarization to remodel an osteoinductive microenvironment are separate and ***,the design and synthesis of one biomaterial that couples the osteogenic performance and immunomodulatory ability is a major challenge for efficient bone *** this study,self-assembled iron-catechin nanoparticles(Fe-cat NPs)were designed based on the coordinated reaction between iron ions and catechin and synthesized via a facile one-pot ***,Fe-cat NPs show intracellular pH-responsive disassembly and release catechin molecules under the low pH of lysosomes after *** strategy delivers catechin intracellularly and then enhances the osteogenic differentiation while inhibits the adipogenic differentiation of human adipose-derived stem cells(hADSCs).More importantly,Fe-cat NPs remodel the osteogenic immune microenvironment by resisting inflammation and promoting M2 polarization of *** a promising metal-organic nanodrug,the intracellular pH-responsive Fe-cat NPs significantly enhance the therapeutic effect of bone regneration by orchestrating osteogenic differentiation and immunomodulation,which may have great potential in bone tissue engineering.

关键词： Fe-catechin nanoparticles osteogenesis adipogenesis immunomodulation intracellular pH-responsive