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Enhanced piezoelectricity of Cu-doped K(Ta,Nb)O_(3) single crystals

Journal of Materiomics 2024年第5期10卷 1017-1025页

作者： Fulin Zhang Songtao Fan Yingxu Zhu Wendie Chen Bing Liu Yuguo Yang Limei Zheng Yuanyuan Zhang Xianshun Lv Xuping Wang advanced Materials Institute Qilu University of Technology(Shandong Academy of Sciences)Jinan250014China Qilu University of technology(shandong Academy of Sciences) Advanced Materials InstituteKey Laboratory of Light Conversion Materials and Technology of Shandong Academy of SciencesJinan250014China School of Physics Shandong UniversityJinan250100China

As a class of solid solution material,K(Ta,Nb)O3(KTN)single crystals have attracted significant interest due to their excellent piezoelectric and electro-optic *** this study,the piezoelectric properties of KTN were improved through Cu *** the advantages of composition-regulating phase transition,a large,high-quality Cu:KTN crystal measuring 30 mm×25 mm×20 mm in size was grown using the improved top seeded solution growth ***-doped KTN exhibited better piezoelectric properties than pure KTN,and the full matrix parameters were *** dielectric,piezoelectric,and electromechanical coupling responses(ε^(T)_(11)-2,136,d_(33)∼303 pC/N,k_(t)∼0.515,and k33∼0.672)were successfully *** realize the optimized orientation of the piezoelectric properties,the orientation dependence of the single domain properties was investigated,and the mechanism of Cu doping to improve piezoelectric properties was *** found that 0.36%(in mass)Cu doped crystal consisted of A-site substitution,following ferroelectric and domain *** small ferroelectric domain sizes led to a large domain wall mobility rate and high domain wall density,which contributed to high piezoelectric *** work revealed the effect of A-position doping on piezoelectric properties and provided a theoretical and experimental foundation for the performance optimization of KTN-based materials.

关键词： Solid solution material Lead-free piezoelectric Enhanced piezoelectricity

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Recent Progress in All-Solution-Processed Organic Solar Cells

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Chinese Journal of Chemistry 2024年第2期42卷 190-198页

作者： Yixuan Xu Qian Wang Wentao Zou Xu Zhang Yanna Sun Yuanyuan Kan Ping Cai Ke Gao School of Materials Science and Engineering&Guangxi key laboratory of Information Materials Guilin University of Electronic TechnologyGuilinGuangxi 541004China shandong Provincial key laboratory for Science of Material Creation and Energy conversion Science Center for Material Creation and Energy ConversionInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdaoShandong 266237China

All-solution-processed organic solar cells(OSCs)(from the bottom electrode to the top electrode)are highly attractive thanks to their low cost,lightweight and high-throughput ***,achieving highly efficient all-solution-processed OSCs remains a significant *** of the key issues is the lack of high-quality solution-processed electrode systems that can replace indium tin oxide(ITO)and vacuum-deposited metal *** this paper,we comprehensively review recent advances in all-solution-processed osCs,and classified the devices as the top electrode materials,including silver nanowires(AgNWs),conducting polymers and composite conducting *** correlation between electrode materials,properties of electrodes,and device performance in all-solution-processed OSCs is *** addition,the critical roles of the active layer and interface layer are also ***,the prospects and challenges of all-solution-processed OSCs are presented.

关键词： Organic solar cells All-solution-processed organic solar cells Solution-processed electrodes High performance Silver nanowires Conductive polymers Composite conducting materials

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Effect of icosahedral phase formation on the stress corrosion cracking(SCC)behaviors of the as-cast Mg-8%Li(in wt.%)based alloys

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Journal of Magnesium and Alloys 2024年第1期12卷 225-236页

作者： Shuo Wang Daokui Xu Dongliang Wang Zhiqiang Zhang Baojie Wang key Lab of electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang110819China key laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China Engineering Research Center of advanced Materials Preparing technology Ministry of EducationNortheastern UniversityShenyang110819China School of Environmental and Chemical Engineering Shenyang Ligong UniversityShenyang110159China Binzhou Institute of technology BinzhouShandong Province256606China shandong key laboratory of advanced Aluminium Materials and technology BinzhouShandong Province256606China

Through exploring the stress corrosion cracking(SCC)behaviors of the as-cast Mg-8%Li and Mg-8%Li-6%Zn-1.2%Y alloys in a 0.1 M NaCl solution,it revealed that the SCC susceptibility index(I_(SCC))of the Mg-8%Li alloy was 47%,whilst the I_(SCC)of the Mg-8%Li-6%Zn-1.2%Y alloy was 68%.Surface,cross-sectional and fractography observations indicated that for the Mg-8%Li alloy,theα-Mg/β-Li interfaces acted as the preferential crack initiation sites and propagation paths during the SCC *** regard to the Mg-8%Li-6%Zn-1.2%Y alloy,the crack initiation sites included the I-phase and the interfaces of I-phase/β-Li andα-Mg/β-Li,and the preferential propagation paths were the I-phase/β-Li andα-Mg/β-Li ***,the SCC of the two alloys was concerned with hydrogen embrittlement(HE)mechanism.

关键词： Magnesium-lithium alloy Stress corrosion cracking I-phase Fracture analysis

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The application of metal-organic frameworks and their derivatives for lithium-ion capacitors

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新型炭材料（中英文） 2024年第5期39卷 872-895页

作者： ZHAO Sha-sha ZHANG Xiong LI Chen AN Ya-bin HU Tao WANG Kai SUN Xian-zhong MA Yan-wei key laboratory of High Density electromagnetic Power and Systems(Chinese Academy of Sciences) Institute of Electrical EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China shandong key laboratory of advanced electromagnetic conversion technology Institute of Electrical Engineering and Advanced Electromagnetic Drive TechnologyQilu ZhongkeJinan 250013China

There is an urgent need for lithium-ion capacitors(LICs)that have both high energy and high power densities to meet the continuously growing energy storage *** effectively balance the high energy density of traditional rechargeable batteries with the superior power density and long life of supercapacitors(SCs).Nevertheless,the development of LICs is still hampered by limited kinetic processes and capacity mismatch between the cathode and ***-organic frameworks(MOFs)and their derivatives have received significant attention because of their extensive specific surface area,different pore structures and topologies,and customizable functional sites,making them compelling candidate materials for achieving high-performance ***-derived carbons,known for their exceptional electronic conductivity and large surface area,provide improved charge storage and rapid ion ***-derived transition metal oxides contribute to high specific capacities and improved electrochemical ***,MOF-derived metal compounds/carbons provide combined effects that increase both the capacitive and Faradaic reactions,leading to a superior overall *** review begins with an overview of the fundamental principles of LICs,followed by an exploration of synthesis strategies and ligand selection for MOF-based composite *** then analyzes the advantages of original MOFs and their derived materials,such as carbon materials and metal compounds,in enhancing LIC ***,the review discusses the major challenges faced by MOFs and their derivatives in LIC applications and offers future research directions and recommendations.

关键词： Lithium-ion capacitors MOFs Transition metal oxide Energy density Power density

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Construction of an alternative NADPH regeneration pathway improves ethanol production in Saccharomyces cerevisiae with xylose metabolic pathway

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Synthetic and Systems Biotechnology 2024年第2期9卷 269-276页

作者： Yali Qiu Wei Liu Meiling Wu Haodong Bao Xinhua Sun Qin Dou Hongying Jia Weifeng Liu Yu Shen State key laboratory of Microbial technology Institute of Microbial TechnologyShandong UniversityQingdao266237China advanced Medical Research Institute Shandong UniversityJinan250012China

Full conversion of glucose and xylose from lignocellulosic hydrolysates is required for obtaining a high ethanol ***,glucose and xylose share flux in the pentose phosphate pathway(PPP)and glycolysis pathway(EMP),with glucose having a competitive advantage in the shared metabolic *** this work,we knocked down ZWF1 to preclude glucose from entering the *** reduced the[NADPH]level and disturbed growth on both glucose or xylose,confirming that the oxidative PPP,which begins with Zwf1p and ultimately leads to CO_(2) production,is the primary source of NADPH in both glucose and *** glucose depletion,gluconeogenesis is necessary to generate glucose-6-phosphate,the substrate of *** re-established the NADPH regeneration pathway by replacing the endogenous NAD^(+)-dependent glyceraldehyde-3-phosphate dehydrogenase(GAPDH)gene TDH3 with heterogenous NADP^(+)-GAPDH genes GDH,gapB,and *** the resulting strains,the strain BZP1(zwf1Δ,tdh3::GDP1)exhibited a similar xylose consumption rate before glucose depletion,but a 1.6-fold increased xylose consumption rate following glucose depletion compared to the original strain BSGX001,and the ethanol yield for total consumed sugars of BZP1 was 13.5%higher than *** suggested that using the EMP instead of PPP to generate NADPH reduces the wasteful metabolic cycle and excess CO_(2)^(++) release from oxidative ***,we used a copper-repressing promoter to modulate the expression of ZWF1 and optimize the timing of turning off the ZWF1,therefore,to determine the competitive equilibrium between glucose-xylose *** strategy allowed fast growth in the early stage of fermentation and low waste in the following stages of fermentation.

关键词： Saccharomyces cerevisiae Xylose Ethanol NADPH Glyceraldehyde-3-phosphate dehydrogenase

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Engineering S-scheme W_(18)O_(49)/ZnIn_(2)S_(4)heterojunction by Co_(x)P nanoclusters for enhanced charge transfer capability and solar hydrogen evolution

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Nano Research 2024年第9期17卷 8095-8103页

作者： Xiaojie Liu Erkang Liu Zixian Wang Wen Zhang Mingyu Dou Hua Yang Changhua An Dacheng Li Jianmin Dou shandong Provincial key laboratory of Chemical Energy Storage and Novel Cell technology School of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252059China Tianjin key laboratory of Organic Solar Cell and Photochemical conversion School of Chemistry and Chemical EngineeringTianjin Key Laboratory of Advanced Functional Porous MaterialsInstitute for New Energy Materials and Low-Carbon TechnologiesTianjin University of TechnologyTianjin 300384China Institute of Powder Metallurgy and advanced Ceramics School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Enhancement of the light-absorption response and utilization of the photogenerated carriers represent a robust strategy for the design of high-performance *** this work,grafting Co_(x)P nanoclusters onto S-scheme heterojunction of W18O49/ZnIn2S4(WO/ZIS-CoxP)with strong response to the ultraviolet-visible-near infrared ray(UV-vis-NIR)region has been achieved,which possesses efficient electron-transfer-channel,and boosts charge-separation and transport *** as-prepared WO/ZIS-Co_(x)P yields an impressive solar-driven hydrogen production rate of 45 mmol·g^(-1)·h^(-1).The increased photocatalytic performance is attributed to the synergistic effect of the composite catalyst:(1)The local surface plasmon resonance-induced“hot electron”injection of W_(18)O_(49)significantly increases the electron density;(2)the engineered S-scheme directional electron transfer promotes charge separation and enhances the reducing capability of photoexcited electrons;and(3)Co_(x)P as electron-trap site for accelerating surface proton reduction *** work provides a platform to impart nonprecious co-catalyst for engineering S-scheme heterojunction,serving a class of efficient solar-driven photocatalyst towards hydrogen production.

关键词： hydrogen cocatalyst photocatalysis S-scheme hot electron

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Bimetallic selenide heterostructure with directional built-in electricfield confined in N-doped carbon nanofibers for superior sodium storage with ultralong lifespan

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Journal of Energy Chemistry 2024年第4期91卷 407-416页

作者： Junying Weng Degui Zou Wenyong Yuan Pengfei Zhou Minghui Ding Jin Zhou Hailin Cong Fangyi Cheng School of Materials Science and Engineering Shandong University of TechnologyZibo 255000ShandongChina School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255000ShandongChina key laboratory of advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Constructing heterostructure is considered as an effective strategy to address the sluggish electronic and ionic kinetics of anode materials for sodium ion batteries(SIBs).However,realizing the orientated growth and uniform distribution of the heterostructure is still a great ***,the regulated novel CoSe_(2)/NiSe_(2)heterostructure confined in N-doped carbon nanofibers(CoSe_(2)/NiSe_(2)@N-C)are prepared by using Co/Ni-ZIF template,in which,the CoSe_(2)/NiSe_(2)heterostructures realize uniform distribution on a micro *** from the unique heterostructure and N-doped carbon nanofibers,the CoSe_(2)/NiSe_(2)@N-C deliveries superior rate capability and durable cycle lifespan with a reversible capacity of 400.5 mA h g^(-1)after 5000 cycles at 2 A g^(-1).The Na-ion full battery with CoSe_(2)/NiSe_(2)@N-C anode and layered oxide cathode displays a remarkable energy density of 563 W h kg^(-1)with 241.1 W kg^(-1)at 0.1 A g^(-1).The theoretical calculations disclose that the periodic and directional built-in electric-field along with the heterointerfaces of CoSe_(2)/NiSe_(2)@N-C can accelerate electrochemical reaction *** in(ex)situ experimental measurements reveal the reversible conversion reaction and stable structure of CoSe_(2)/NiSe_(2)@N-C during Na+insertion/*** study highlights the potential ability of precisely controlled heterostructure to stimulate the electrochemical performances of advanced anode for SIBs.

关键词： CoSe_(2)/NiSe_(2) heterostructure Built-in electric-field Rate capability Ultralong lifespan Sodium ion batteries

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Re-usable Cd_(0.9)Zn_(0.1)S-ZnO@C/PVDF piezo-photocatalytic film with exceptional hydrogen evolution capability triggered by the synergetic advantages of piezoelectricity and S-Scheme heterojunction

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Journal of Energy Chemistry 2024年第9期96卷 164-176页

作者： Ping Su Dong Zhang Minghui Zhu Tengteng Liang Nan Yang Huaihao Zhao Dafeng Zhang Junchang Liu Peiqing Cai Xipeng Pu School of Materials Science and Engineering Shandong Provincial Key Laboratory of Chemical Energy Science and Novel Cell TechnologyLiaocheng UniversityLiaocheng 252000ShandongChina School of Physics Science and Information technology Shandong Key Laboratory of Optical Communication Sciencend TechnologyLiaocheng UniversityLiaocheng 252000ShandongChina College of Optical and Electronic technology China Jiliang UniversityHangzhou 310018ZhejiangChina

Piezoelectric materials have advantages of fine-tuning photocatalytic performance through harvesting mechanical energy and open a new avenue in facilitating green catalytic ***,polyvinylidene fluoride(PVDF),a flexible piezoelectric material,was introduced to synthesize a novel Cd_(0.9)Zn_(0.1)S-ZnO@C/PVDF(CZS-ZO@C/PVDF)piezo-photocatalytic film by spin coating and immersion phase conversion *** from the piezoelectricity of PVDF and the internal electric field(IEF)of CZS-ZO@C Step-scheme(S-Scheme)heterojunction,CZS-ZO@C/PVDF was able to induce a hydrogen generation rate of 34.9 mmol g^(−1)h^(−1)activated by ultrasound and visible light(U-L),which is∼17.5 times of Cd_(0.9)Zn_(0.1)S/PVDF(CZS/PVDF)and∼7.4 times of the photocatalysis rate activated by visible light only(L).Piezoelectric measurements and COMSOL simulation illustrated the excellent piezoelectricity of CZS-ZO@C/PVDF film,which exhibits a piezoelectric coefficient(d33)of 9.9 pm V−1 and a piezoelectric potential of 874 mV(under 0.5 MPa).The reaction mechanism for the exceptional piezo-photocatalytic performance was finally disclosed through density functional theory(DFT)calculation and electrochemical *** study enriches the application scope of piezoelectric materials in sustainable energy catalysis and provides a new direction to develop efficient piezoelectric photocatalysts.

关键词： Piezo-photocatalysis Heterojunction Cd_(0.9)Zn_(0.1)S Zno@c PVDF

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Progresses and Prospects of Asymmetrically Coordinated Single Atom Catalysts for Lithium-Sulfur Batteries

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Energy & Environmental Materials 2024年第4期7卷 48-63页

作者： Rong Zhou Shaonan Gu Meng Guo Shuzheng Xu Guowei Zhou key laboratory of Fine Chemicals in Universities of shandong Jinan Engineering Laboratory for Multi-scale Functional Materials School of Chemistry and Chemical Engineering Qilu University of Technology(Shandong Academy of Sciences)

Lithium-sulfur batteries (LSBs) are widely regarded as promising next-generation batteries due to their high theoretical specific capacity and low material ***,the practical applications of LSBs are limited by the shuttle effect of lithium polysulfides (LiPSs),electronic insulation of charge and discharge products,and slow LiPSs conversion reaction kinetics.

关键词： asymmetrical coordination conversion catalysis Li-S batteries shuttle effect single atom catalysts

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Spontaneous anchoring Cl intoα-Co(OH)_(2) as efficient and stable oxygen reduction electrocatalysts for seawater battery

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Rare Metals 2024年第7期43卷 3074-3083页

作者： Wang Zheng Xue-Rong Zheng Qi Lu Yan-Hui Cao Yang Wang Hai-Peng Fu Jin-Feng Zhang Yi-Da Deng Wen-Bin Hu School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of EducationTianjin UniversityTianjin 300072China State key laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228China key laboratory of electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang 110819China

Seawater battery is an advanced energy storage system that enables conversion of chemical energy to electricity by consuming metals,dissolved oxygen and seawater in anode,cathode and electrolyte,***,the oxygen reduction reaction(ORR)activity and stability of electrocatalysts can be easily deactivated due to the severe Cl~-permeation and corrosion in seawater ***,we developed a structural buffer engineering strategy by spontaneously anchoring Cl~-intoα-Co(OH)_(2) as efficient and stable ORR electrocatalysts,in which the ultrathinα-Co(OH)_(2) nanosheets were synthesized using an ultrafast solution high-temperature shock(SHTS)*** large lattice space(~0.8 nm)of layeredα-Co(OH)_(2) ensured the spontaneously penetration of Cl~-into the lattice structure and replaced part of OH~-to formα-Co(OH)_(2-x)Cl_*** continuous leaching and compensating of saturated Cl inα-Co(OH)_(2-x)Cl_x could enhance the Cl~-corrosion resistance and modulate electronic structure of Co metallic sites,thus improving the ORR electrocatalytic activity and stability in seawater ***α-Co(OH)_(2-x)Cl_x seawater batteries display superior onset and half-wave potentials of 0.71 and 0.66 V,respectively,which are much better than the counterparts ofα-Co(OH)_(2) and ofβ-Co(OH)_(2) with no Cl~-penetrating and no buffer ***α-Co(OH)_(2-x)Cl_x-based seawater batteries display stable open-circuit potential of 1.69 V and outstanding specific capacity of 1345 mAh·g^(-1).

关键词： Seawater battery Oxygen reduction electrocatalyst Solution high-temperature shock Structural buffer engineering

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