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3D Porous MXene Aerogel through Gas Foaming for Multifunctional PressureSensor

Research 2022年第4期2022卷 321-331页

作者： Yongfa Cheng Li Li Zunyu Liu Shuwen Yan Feng Cheng Yang Yue Shuangfeng Jia Jianbo Wang Yihua Gao Luying Li Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Luoyu Road 1037Wuhan 430074China Information Materials and Intlligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China School of Physics and Technology Center for Electron MicroscopyMOE Key Laboratory of Artificial Micro-and Nano-Structures and the Institute for Advanced StudiesWuhan UniversityWuhan 430072China

The development of smart wearable electronic devices puts forward higher requirements for future flexible electronics. The design of highly sensitive and high-performance flexible pressure sensors plays an important role in promoting the development of flexible electronic devices. Recently, MXenes with excellent properties have shown great potential in the field of flexible electronics. However, the easy-stacking inclination of nanomaterials limits the development of their excellent properties and the performance improvement of related pressure sensors. Traditional methods for constructing 3D porous structures have the disadvantages of complexity, long period, and difficulty of scalability. Here, the gas foaming strategy is adopted to rapidly construct 3D porous MXene aerogels. Combining the excellent surface properties of MXenes with the porous structure of aerogel, the prepared MXene aerogels are successfully used in high-performance multifunctional flexible pressure sensors with high sensitivity (306 kPa^(-1)), wide detection range (2.3 Pa to 87.3 kPa), fast response time (35 ms), and ultrastability (>20,000 cycles), as well as self-healing, waterproof, cold-resistant, and heat-resistant capabilities. MXene aerogel pressure sensors show great potential in harsh environment detection, behavior monitoring, equipment recovery, pressure array identification, remote monitoring, and human-computer interaction applications.

关键词： MXene porous Porous

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Microstructure and mechanical properties of TC4 joints brazed with Ti-Zr-Cu-Sn amorphous filler alloy

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Rare Metals 2021年第7期40卷 1881-1889页

作者： Hui-Hui Zhang Zhen-Duo Cui Sheng-Li Zhu Shi-Wei Guo Xian-Jin Yang Akihisa Inoue School of Materials Science and Engineering Tianjin UniversityTianjin 30007China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin 300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300072China Department of Physics King Abdulaziz UniversityJeddah 22254Saudi Arabia

The Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)(at%)amorphous filler alloy in a ribbon form was prepared by melt *** Ti-6 Al-4 V alloy was brazed in vacuum furnace by using the Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)amorphous filler *** effects of brazing temperature and holding time on the interfacial microstructure and mechanical properties of the Ti-6 Al-4 V brazed joints were *** brazed joints are composed ofα-Ti,β-Ti,and(Ti,Zr)_(2)Cu *** shear strength of the joints increases with brazing temperature increasing from 1153 to 1193 K and holding time from 10 to 15 min,while decreases with brazing temperature and time further *** temperature brazing results in the formation of microcracks and voids in the seams,which are harmful for the shear strength of the *** the joint brazed at 1193 K for 15 min,a fineα+βWidmansta¨tten structure beneficial to the mechanical property is formed,and the joint exhibits relatively high joint strength of 180 MPa.

关键词： Amorphous alloy Brazing Titanium alloy Microstructure Mechanical property

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The Active Sites and Corresponding Stability Challenges of the M-N-C Catalysts for Proton Exchange Membrane Fuel Cell

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Chinese Journal of Chemistry 2023年第6期41卷 710-724页

作者： Ruolin Peng Zhongkun Zhao Hongmin Sun Yongping Yang Tinglu Song Yao Yang Jiankun Shao Haibo Jin Hongtao Sun Zipeng Zhao Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications Experimental Center of Advanced MaterialsSchool of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China The Harold and Inge Marcus Department of Industrial and Manufacturing Engineering The Pennsylvania State UniversityUniversity ParkPA16802-4400USA School of Engineering Westlake UniversityHangzhouZhejiang 310030China State Key Laboratory of Explosion Science and Technology Bejing Institute of TechnologyBeijing 100081China The Materials Research institute The Pennsylvania State UniversityUniversityParkPA16802-4400UA

Proton exchange membrane fuel cells(PEMFCs)as promising alternatives to traditional internal combustion engines have attracted massive concerns to promote their wide application in ***,the biggest challenge to the commercialization of PEMFCs remains the high cost due to the adoption of the platinum group metal(PGM)catalysts in the cathode.

关键词： Proton exchange membrane fuel cell Electrocatalysis Oxygen reduction reaction M-N-C catalysts Active sites Stability Degradation mechanisms

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双膦酸型自组装单分子层的中心氟化策略实现高效有机太阳能电池（英文）

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science China Materials 2025年第5期68卷 1408-1414页

作者：刘航高兴邦辛雨菲王若晗钟浩林阚斌万相见陈永胜刘永胜 The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai University School of Materials Science and Engineering National Institute for Advanced MaterialsNankai University Renewable Energy Conversion and Storage Center Nankai University

目前,广泛用于正型有机太阳能电池的空穴提取层(HEL)材料是PEDOT:PSS.然而, PEDOT:PSS的酸性会腐蚀氧化铟锡(ITO)电极,降低器件的稳定性.本文采用中心氟化策略,设计合成了一种双膦酸型自组装单分子层(SAM)材料3BPIC-cF.与PEDOT:PSS相比,... 详细信息

目前,广泛用于正型有机太阳能电池的空穴提取层(HEL)材料是PEDOT:PSS.然而, PEDOT:PSS的酸性会腐蚀氧化铟锡(ITO)电极,降低器件的稳定性.本文采用中心氟化策略,设计合成了一种双膦酸型自组装单分子层(SAM)材料3BPIC-cF.与PEDOT:PSS相比, 3BPIC-cF修饰的ITO基底具有更高的光透过率和更好的界面相容性.氟原子的引入使得3BPIC-cF具有更大的偶极矩和更深的最高占据轨道能级,导致ITO/3BPIC-cF基底具有比ITO/PEDOT:PSS基底更大的功函数.这些优势有利于空穴的提取,降低界面阻抗并抑制界面处的非辐射复合.使用3BPIC-cF作为HEL的有机太阳能电池实现了19.34%的光伏效率,优于PEDOT:PSS器件(PCE=18.64%).此外,基于3BPIC-cF的光伏器件具有比基于PEDOT:PSS的器件更高的稳定性.本研究为面向高效有机太阳能电池中SAM分子的设计与合成提供了有价值的指导.

关键词： organic solar cells self-assembled monolayer fluorination strategy hole extraction layer

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Bifunctional self-segregated electrolyte realizing high-performance zinc-iodine batteries

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InfoMat 2024年第12期6卷 112-123页

作者： Xueting Hu Zequan Zhao Yongqiang Yang Hao Zhang Guojun Lai Bingan Lu Peng Zhou Lina Chen Jiang Zhou School of Materials Science and Engineering Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsCentral South UniversityChangshaHunanthe people's Republic of China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHong Kong SARthe people's Republic of China Department of Chemical Engineering Massachusetts Institute of TechnologyCambridgeMassachusettsUSA School of Physics and Electronics Hunan UniversityChangshaHunanthe people's Republic of China Hunan Provincial Key Defense Laboratory of High Temperature Wear-Resisting Materials and Preparation Technology Hunan University of Science and TechnologyXiangtanHunanthe people's Republic of China School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)ShenzhenGuangdongthe people's Republic of China

Static rechargeable zinc-iodine(Zn-I_(2))batteries are superior in safety,costeffectiveness,and sustainability,giving them great potential for large-scale energy storage ***,the shuttle effect of polyiodides on the cathode and the unstable anode/electrolyte interface hinder the development of Zn-I_(2)***,a self-segregated biphasic electrolyte(SSBE)was proposed to synergistically address those *** strong interaction between polyiodides and the organic phase was demonstrated to limit the shuttle effect of ***,the hybridization of polar organic solvent in the inorganic phase modulated the bonding structure,as well as the effective weakening of water activity,optimizing the interface during zinc *** a result,the Zn-I_(2)coin cells performed a capacity retention of nearly 100%after 4000 cycles at 2 mA cm^(-2).And a discharge capacity of 0.6 Ah with no degradation after 180 cycles was achieved in the pouch cell.A photovoltaic energy storage battery was further achieved and displayed a cumulative capacity of 5.85 *** successfully designed energy storage device exhibits the application potential of Zn-I_(2)batteries for stationary energy storage.

关键词： bifunctional modification self-segregated electrolyte shuttle-free zinc-iodine batteries

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New sustainable polymers with on-demand depolymerization property

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science China Chemistry 2024年第9期67卷 2803-2841页

作者： Yangyang Sun Zesheng An Yanshan Gao Rongrong Hu Ye Liu Hua Lu Xiao-Bing Lu Xuan Pang Anjun Qin Yong Shen Youhua Tao Yu-Zhong Wang Junpeng Wang Gang Wu Guang-Peng Wu Tie-Qi Xu Xing-Hong Zhang Yuetao Zhang Zhenbiao Zhang Jian-Bo Zhu Miao Hong Zhibo Li State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdao266042China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth China University of TechnologyGuangzhou 510640China State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart MaterialsDalian University of TechnologyDalian 116024China Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE) National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan)College of ChemistryState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610064China School of Polymer Science and Polymer Engineering the University of AkronAkronOH 44325USA MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationSuzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

To combat the crisis of today's synthetic polymers arising from unsustainable production and disposal,it is essential for the synthetic polymer community to reshape the current polymer industry with sustainable *** an emerging class of sustainable polymers,the development of chemically depolymerizable polymers(CDPs),which can undergo closed-loop depolymerization/repolymerization cycles to reproduce virgin polymers without the loss of properties from recovered monomers,offers an ideal solution to preserve finite natural resources,provides a feasible solution to the end-of-life issue of polymer waste,and thereby establishes a circular materials ***,two grand key challenges have been encountered in the establishment of practically useful CDPs:how to balance polymerization and depolymerization ability and how to unify conflicted depolymerizability and physical ***,this critical review article presents our vision for summarizing feasible strategies to overcome the above two significant challenges and the design principles for constructing an ideal CDP by highlighting selected major progress made in this rapidly expanding field.

关键词： chemically depolymerizable polymers sustainable polymers depolymerization monomer recovery degradation plastics

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Host-Guest Strategy Enabling Nonhalogenated Solvent Processing for High-Performance All-Polymer Hosted Solar Cells

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Chinese Journal of Chemistry 2023年第9期41卷 1066-1074页

作者： Yuting Huang Haiyang Chen Qunping Fan Ziyuan Chen Junyuan Ding Heyi Yang Zhe Sun Rui Zhang Weijie Chen Changduk Yang Feng Gao Yaowen Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu 215123China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhouJiangsu 215123China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu 215123China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong UniversityXi'anShaanxi 710049China Department of Energy Engineering School of Energy and Chemical EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and Technology(UNIST)UlsanRepublic of Korea Department of Physics Chemistry and Biology(IFM)Linkoping UniversityLinkopingSweden

The power conversion efficiencies(PCEs)of all-polymer solar cells(all-PSCs),usually processed from low-boiling-point and toxic sol-vents,have reached high values of 18%.However,poor miscibility and uncontrollable crystallinity in polymer blends lead to a nota-ble drop in the PCEs when using green solvents,limiting the practical development of ***,a third component(guest)BTO was employed to optimize the miscibility and enhance the crystallinity of PM6/PY2Se-F host film processed from green solvent toluene(TL),which can effectively suppress the excessive aggregation of PY2Se-F and facilitate a nano-scale interpenetrating net-work morphology for exciton dissociation and charge *** a result,TL-processed all-polymer hosted solar cells(all-PHSCs)exhibited an impressive PCE of 17.01%.Moreover,the strong molecular interaction between the host and guest molecules also en-hances the thermal stability of the *** host-guest strategy provides a unique approach to developing high-efficiency and stable all-PHSCs processed from green solvents,paving the way for the industrial development of all-PHSCs.

关键词： All-polymer solar cells Host-guest systems Crystal engineering Nonhalogenated green solvent Stability Morphology Miscibility Ternary blend solar cells

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Constructing bifunctional Co/MoC@N-C catalyst via an in-situ encapsulation strategy for efficient oxygen electrocatalysis

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Journal of Energy Chemistry 2021年第8期30卷 538-546,I0011页

作者： Hui Huang Lingjun Kong Ming Liu Jie He Wei Shuang Yunhua Xu Xian-He Bu School of Materials Science and Engineering National Institute for Advanced MaterialsTKL of Metal and Molecule Based Material ChemistryNankai University300071 TianjinChina School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education)and Tianjin Key Laboratory of Composite and Functional MaterialsTianjin University300072 TianjinChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai University300071 TianjinChina

The large-scale application of Zn-air battery requires the development of efficient,low-cost,and stable bifunctional electrocatalysts for the oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).Herein,an electrocatalyst of a Co/Mo C-nanoparticles embedded N-doped carbon(Co/Mo C@N-C)was prepared via the in-situ encapsulation of Co_(2)(CO)_(8)and Mo(CO)6 in ZIF-8 using ball-milling,followed by pyrolysis under an Ar *** used as a bifunctional electrocatalyst,the as-prepared Co/Mo C@N-C showed an ORR half-wave potential of 0.824 V in an alkaline medium and an overpotential of only 290 m V for the OER at 10 m A cm^(-2),which was 70 m V lower than Ru O_(2).The Co/Mo C@N-C was also evaluated as a cathode in a solid-state Zn-air battery and delivered a higher peak discharge power density and better cycling stability(over 1600 min)than Pt/C-Ru O_(2).Most importantly,our work provides a new strategy to prepare bifunctional catalysts and promotes their applications in the energy conversion field.

关键词： In-situ ZIF-8 Bifunctional electrocatalyst New strategy

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Pressure-induced magnetic phase and structural transition in SmSb_(2)

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Chinese Physics B 2024年第6期33卷 473-478页

作者：李涛王舒阳陈绪亮陈春华房勇杨昭荣 Science Island Branch of Graduate School University of Science and Technology of ChinaHefei 230026China Anhui Key Laboratory of Low-Energy Quantum Materials and Devices High Magnetic Field LaboratoryHFIPSChinese Academy of SciencesHefei 230031China Jiangsu Laboratory of Advanced Functional Materials Department of PhysicsChangshu Institute of TechnologyChangshu 215500China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

Motivated by the recent discovery of unconventional superconductivity around a magnetic quantum critical point in pressurized CeSb_(2),here we present a high-pressure study of an isostructural antiferromagnetic(AFM) SmSb_(2) through electrical transport and synchrotron x-ray diffraction *** P_(C)~2.5 GPa,we found a pressure-induced magnetic phase transition accompanied by a Cmca→P4/nmm structural phase *** the pristine AFM phase below P_(C),the AFM transition temperature of SmSb_(2) is insensitive to pressure;in the emergent magnetic phase above P_(C),however,the magnetic critical temperature increases rapidly with increasing *** addition,at ambient pressure,the magnetoresistivity(MR) of SmSb_(2) increases suddenly upon cooling below the AFM transition temperature and presents linear nonsaturating behavior under high field at 2 *** increasing pressure above P_(C),the MR behavior remains similar to that observed at ambient pressure,both in terms of temperature-and field-dependent *** leads us to argue an AFM-like state for SmSb_(2) above P_(C).Within the investigated pressure of up to 45.3 GPa and the temperature of down to 1.8 K,we found no signature of superconductivity in SmSb_(2).

关键词： high pressure antiferromagnet magnetoresistivity structural transition

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High-Transconductance,Highly Elastic,Durable and Recyclable All-Polymer Electrochemical Transistors with 3D Micro-Engineered Interfaces

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Nano-Micro Letters 2022年第11期14卷 237-255页

作者： Wenjin Wang Zhaoxian Li Mancheng Li Lvye Fang Fubin Chen Songjia Han Liuyuan Lan Junxin Chen Qize Chen Hongshang Wang Chuan Liu Yabin Yang Wan Yue Zhuang Xie School of Materials Science and Engineering Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices and Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSun Yat-Sen UniversityGuangzhou 510275People’s Republic of China State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China

Organic electrochemical transistors(OECTs)have emerged as versatile platforms for broad applications spanning from flexible and wearable integrated circuits to biomedical monitoring to neuromorphic computing.A variety of materials and tailored micro/nanostructures have recently been developed to realized stretchable OECTs,however,a solid-state OECT with high elasticity has not been demonstrated to ***,we present a general platform developed for the facile generation of highly elastic all-polymer OECTs with high transconductance(up to 12.7 mS),long-term mechanical and environmental durability,and *** prototyping of these devices was achieved simply by transfer printing lithium bis(trifluoromethane)sulfonimide doped poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)(PEDOT:PSS/LiTFSI)microstructures onto a resilient gelatin-based gel electrolyte,in which both depletion-mode and enhancement-mode OECTs were produced using various active ***,the elaborate 3D architectures of the PEDOT:PSS were engineered,and an imprinted 3D-microstructured channel/electrolyte interface combined with wrinkled electrodes provided performance that was retained(>70%)through biaxial stretching of 100%strain and after 1000 repeated cycles of 80%***,the anti-drying and degradable gelatin and the self-crosslinked PEDOT:PSS/LiTFSI jointly enabled stability during>4 months of storage and on-demand disposal and *** work thus represents a straightforward approach towards high-performance stretchable organic electronics for wearable/implantable/neuromorphic/sustainable applications.

关键词： Conducting polymer Gelatin organohydrogel electrolyte Organic electrochemical transistor Stretchable electronics Soft lithography

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