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Binder-induced ultrafast ■-intercalation toward a high-voltage,high-power and long-cycling zinc–graphite dual-ion battery

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Rare Metals 2024年第10期43卷 5017-5029页

作者： Gen li {1.-Jun Shi ting Dong Qian Yu Zhi-Fei Mao Xin-Hua {3. Rui wang Bei-Bei He Jun Jin Yan-sheng Gong Huan-Wen wang engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Material Science and ChemistryChina University of Geosciences College of Resources and Environment South-Central Minzu University school of Transportation Science and {1. Beihang University

Metallic zinc is an ideal anode material owing to its high theoretical capacity (81. mAh·g-1.,ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries （ZIBs）.However,the practical application of current ZIBs is significantly restricted by irregular dendrite growth of zinc anode and the low working voltage （usually2 V） of cathode ***,we report a high-voltage Zn-based dualion battery （DIB）,which is constructed by a graphite cathode,a Zn anode,and 3.M liPF6in the ethyl methyl carbonate （EMC） *** the corrosion interaction of li+ions,Zn2+can be easily dissolved from Zn anode into the electrolyte to enable dendrite-free Zn2+plating/stripping at the ***,an aqueous carboxymethyl cellulose （CMC） binder is employed to generate a robust cathode electrolyte interface （CEI） layer on the graphite cathode,which renders ultrafast PF6--de-/intercalation into *** resultant Zn–graphite DIB operates stably at a high cut off voltage of 3.2 V,corresponding to an average output voltage of 2.2 *** 9000cycles at 5C,the high capacity retention of 95.9% can be achieved with～1.0%Coulomb *** on the mass of cathode material,our Zn–graphite battery exhibits ultrafast rate capability （60 C,a discharge time of 44 s） and high energy/power densities (208 Wh·kg-1.t 21. W·kg-1.1.2 Wh·kg-1.t 8692 W·kg-1.,which holds great promise for large-scale energy storage.

关键词： Binder Graphite High-voltage PF6−-de-/intercalation Zn-ion batteries

Effect of Ti Particles on the Microstructure and Mechanical Properties of AZ91.Magnesium Matrix Composites

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Acta Metallurgica Sinica(English Letters) 2024年第3期37卷 513-524页

作者： Lu xiao {1.-{1. {3. Yue Chu Bo Song Jie Zhao Xian-Hua Chen Kai-Hong zheng Fu-sheng Pan College of Materials Science and engineering Chongqing UniversityChongqing 400044China lntelligent Manufacturing and Automobile {1. Chongqing College of Electronic EngineeringChongqing 401331China school of Materials and Energy Southwest UniversityChongqing 400715China Science and technology Research Institute of CNNC 404 Co.LTD Gansu 735100China Institute of New Materials Guangdong Academy of SciencesGuangzhou 510650China

Spherical micro-Ti particle(TiP)-reinforced AZ91.magnesium alloy composites were fabricated by semi-solid stirring assisted ultrasonic vibration,which were then subjected to hot *** microstructure results showed that the addition of Ti particles refined the grain size and decreased the texture intensity of the as-extruded AZ91.*** Al3.i phase with a thickness of 1.0 nm formed at the Ti/Mg interface,which had a non-coherent relationship with the magnesium *** as-extruded 1.vol.%TiP/AZ91.composite exhibited the best comprehensive mechanical properties,with yield strength,ultimate tensile strength,and elongation at break of 3.6 MPa,456 MPa,and 1..6%,respectively,which were significantly higher than those of the AZ91.***,the addition of Ti particles can improve the strength and ductility of the AZ91.alloy,demonstrating the value of magnesium matrix composites for commercial applications.

关键词： Magnesium matrix composites Ti particles Interface Mechanical properties

Intermolecular Acid-Base-Pairs Containing Poly(p-Terphenyl-co-Isatin Piperidinium) for High Temperature Proton Exchange Membrane Fuel Cells

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Energy & Environmental Materials 2024年第3期7卷 410-418页

作者： xiaofeng Hao {1.n li Min xiao Zhiheng Huang Dongmei Han sheng Huang Wei liu Shuanjin wang Yuezhong Meng The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province State Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat-sen University school of Chemical {1. and technology Sun Yat-sen University Institute of Chemistry Henan Provincial Academy of Sciences Research Center of Green Catalysts College of ChemistryZhengzhou University

How to optimize and regulate the distribution of phosphoric acid in matrix,and pursuing the improved electrochemical performance and service lifetime of high temperature proton exchange membrane （HT-PEMs） fuel cell are significant ***,bifunctional poly （p-terphenyl-co-isatin piperidinium） copolymer with tethered phosphonic acid （t-PA） and intrinsic tertiary amine base groups are firstly prepared and investigated as *** distinctive {1. of the copolymer provides a well-designed platform for rapid proton *** not only transports through the hydrogen bond network formed by the adsorbed free phosphoric acid （f-PA）anchored by the tertiary amine base groups,but also rely upon the proton channel constructed by the ionic cluster formed by the t-PA *** the design of the structure,the bifunctional copolymers with lower PA uptake level （1.0%） display prominent proton conductivities and peak power densities (99 mS cm-1.81. mW cm-2at 1.0℃),along with lower PA leaching and higher voltage stability,which is a top leading result in disclosed *** results demonstrate that the design of intermolecular acid-base-pairs can improve the proton conductivity without sacrificing the intrinsic chemical stability or mechanical property of the thin membrane,realizing win-win demands between the mechanical robustness and electrochemical properties of HT-PEMs.

关键词： bifunctional copolymer high temperature proton exchange membrane intermolecular acid–base-pairs phosphonic acid retention phosphonic acid uptake level

Development and performance evaluation of high temperature resistant strong adsorption rigid blocking agent

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Petroleum Science 2024年第4期21卷 2650-2662页

作者： zhe Xu Jin-{1. Sun Jing-Ping liu Kai-He Lv {3.-Dong Dong Zong-Lun wang Tai-Feng Zhang Yuan-Wei Sun Zhi-Wen Dai school of Petroleum {1. China University of Petroleum (East China) CNPC engineering {1. R&D Company limited

As drilling wells continue to move into deep ultra-deep layers, the requirements for temperature resistance of drilling fluid treatments are getting higher and higher. Among them, blocking agent, as one of the key treatment agents, has also become a hot spot of research. In this study, a high temperature resistant strong adsorption rigid blocking agent(QW-{3. was prepared using KH570 modified silica,acrylamide(AM) and allyltrimethylammonium chloride(TMAAC). QW-{3.has good thermal stability,average particle size of {3.46 μm, water contact angle of {3..5., has a strong hydrophilicity, can be well dispersed in water. The experimental results showed that when 2 wt% QW-{3.was added to recipe A(4 wt% bentonite slurry+0.5 wt% DSP-{3.filtration loss depressant)), the API filtration loss decreased from 7.8to 6.4 m L. After aging at 240.C, the API loss of filtration was reduced from 2{3.to {3. m L, which has certain performance of high temperature loss of filtration. At the same time, it is effective in sealing 80-{3.0mesh and {3.0-{3.0 mesh sand beds as well as 3.and 5 μm ceramic sand discs. Under the same conditions,the blocking performance was superior to silica(5 μm) and calcium carbonate(2.6 μm). In addition, the mechanism of action of QW-{3.was further investigated. The results show that QW-{3.with amide and quaternary ammonium groups on the molecular chain can be adsorbed onto the surface of clay particles through hydrogen bonding and electrostatic interaction to form a dense blocking layer, thus preventing further intrusion of drilling fluid into the formation.

关键词： High adsorption Rigid microsphere High temperature resistance Blocking performance

ZIF-8-functionalized polymer electrolyte with enhanced performance for high-temperature solid-state lithium metal batteries

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Rare Metals 2024年第3期43卷 984-994页

作者： Jin-Fang Zhang Yuan-Yuan wang {1.-Feng li Gen-Yan Zhang Ying li Rong liu sheng-liang Hu Tuo-Ping Hu Ruth Knibbe Qing-Bing Xia school of Materials Science and {1. North University of ChinaTaiyuan030051China school of Energy and Power {1. North University of ChinaTaiyuan030051China school of Chemistry and Chemical {1. North University of ChinaTaiyuan030051China school of Mechanical and Mining {1. The University of QueenslandBrisbaneQLD4072Australia

Solid polymer electrolytes(SPEs)with high ionic conductivity are desirable for solid-state lithium metal batteries(SSLMBs)to achieve enhanced safety and energy *** nanofillers into a polymeric matrix to develop nanocomposite solid electrolytes(NCSEs)has become a promising method for improving the ionic conductivity of the ***,a novel ZIF-8-functionalized NCSE was prepared for high-temperature S SLMB s using an in situ radical polymerization *** is found that the ZIF-8 nanoparticles could reduce the crystallinity of polymer segments and offer a Lewis acid surface that promotes the dissociation of lithium bis(trifluoromethanesulfonyl)imide(liTFSI)and stabilizes the TFSI^(-) anion ***,the as-prepared NCSE exhibits an outstanding ionic conductivity of 1.63.10^(-3.S·cm^(-1),an electrochem ical stability window of 5.0 V at 80℃,and excellent interface compatibility with lithium metal anode with a stable polarization over 2000 ***,the assembled SSLMBs with liFePO_(4)cathode show dendrite-free li-metal surface,good rate capability,and stable cycling stability with a capacity retention of 70%over 1000 cycles at a high temperature of 80℃.This work provides valuable insights into promoting the ionic conductivity of SPEs.

关键词： lithium metal batteries Metal-organic frameworks Solid polymer electrolytes lithium metal anode Interfacial compatibility

High-performance sodium storage for cobalt phosphide composite array electrodes

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Rare Metals 2024年第8期43卷 3724-3734页

作者： Man Zhang xiao-Xu {1. Tian-Yi Ji Yang li Da-Wei {3. Shao-Dong li Pei-Pei Ren Ze-Xiang Shen school of Material Science and {1. Shaanxi University of Science and TechnologyXi'an 710021China school of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore

Transition metal phosphides hold great potential as sodium-ion batteries anode materials owing to their high theoretical capacity and modest ***,volume changes and low intrinsic conductivity seriously largely hinder the further development of metal phosphide *** design of phosphide anode materials with reasonable structure is conducive to solving the problems of volume expansion and slow reaction kinetics during the *** this work,a composite material integrating zeo{1.te imidazolate backbone(ZIF) and carbon materials was synthesized by the original growth ***,by the oxidation-phosphating process,CoP nanoarray composites riveted to carbon fiber(CoP@CF) were *** the CoP@CF,CoP nanoparticles are uniformly distributed on ZIF-derived carbon,reducing agglomeration and volume change during *** also provides a highly conductive network for the active material,improving the electrode ***,when evaluated as an anode for sodium-ion batteries,CoP@CF electrode displays enhanced reversible capacity(262 mAh·g^(-1. at 0.1.A·g^(-1.after 1.0 cycles),which is much better than that of pure CF electrode(57 mAh·g^(-1. at 0.1.A·g^(-1. after 1.0 cycles)prepared without the addition of *** rate performance of CoP@CF electrode is also superior to that of pure CF electrode at various current densities from 0.05 to1.A·g^(-1..The sodium storage behavior of CoP@CF was revealed by ex-situ X-ray photoelectron spectroscopy,X-ray diffraction,and synchrotron radiation absorption *** method provides a reference for the design and synthesis of anode materials in sodium-ion batteries.

关键词： Cobalt phosphide Array structure Freestanding anodes Sodium-ion batteries

Imide-pillared covalent organic framework protective films as stable zinc ion-conducting interphases for dendrite-free Zn metal anodes

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Journal of Energy Chemistry 2024年第10期97卷 470-477,I0010页

作者： xiaoman Ye Xuemei xiao Zhijing Wu Xin Wu lin Gu {3. liu school of Chemical {1. and technology Sun Yat-sen UniversityZhuhai 519082GuangdongChina The Key Lab of Low-Carbon Chemistry&Energy Conservation of Guangdong Province Sun Yat-sen UniversityGuangzhou 510275GuangdongChina

The notorious growth of zinc dendrite and the water-induced corrosion of zinc metal anodes(ZMAs)restrict the practical development of aqueous zinc ion batteries(AZIBs).In this work,a zinc metallized,imide-pillared covalent organic framework(ZPC)protective film has been engineered as a stable Zn^(2+)ion-conduc{1. interphase to modulate interfacial kinetics and suppress side reactions for *** to bare Zn,ZPC@Zn exhibits a higher Zn^(2+)ionic conductivity,a larger Zn^(2+)transference number,a lower electronic conductivity,a smaller desolvation activation energy and correspondingly a significant suppression of corrosion,hydrogen evolution and Zn ***,the ZPC@Zn||ZPC@Zn symmetric cell obtains a cycling lifespan over 3.00 h under 5 mA cm^(-2)for 1.mA h cm^(-2).The ZPC@Zn||NH_(4)V_(4)O_(1.)coin-type full battery delivers a specific capacity of 1.5.8 mA h g^(-1.with a retention rate of78.5%at 2 A g^(-1.after 1.00 cycles,and the ZPC@Zn||NH_(4)V_(4)O_(1.) pouch full cell shows a retention of70.1.in reversible capacity at 3.A g^(-1.after 1.00 *** present incorporation of imide-linked covalent organic frameworks in the surface modification of ZMAs will offer fresh perspectives in the search for ideal protective films for the practicality of AZIBs.

关键词： Aqueous zinc ion batteries Zinc metal anodes Surface modification Covalent organic frameworks Imide linkage

Ultrathin surface coating of Cu enab{1.ng long-{1.fe Zn metal anodes

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Rare Metals 2024年第5期43卷 2125-2135页

作者： Sang-Sang liu Ya-Ru {1.ang Wen-Long Chen Ze-Hua wang Yi-Long Dai Fu-Gang Qi Zeng-{3. Ma xiao-Ping Ouyang school of Materials Science and {1. Xiangtan UniversityXiangtan 411105China Key Laboratory of Low Dimensional Materials and Application {1. of Ministry of Education Xiangtan UniversityXiangtan 411105China

Aqueous zinc-ion batteries(AZIBs)are regarded as promising energy storage devices due to their low cost,high capacity,and ecological ***,the severe dendritic growth and side reactions hinder their practical applicability ***,an ultrathin Cu coating layer(~200 nm)is decorated on zinc foils via filtered cathodic vacuum arc deposition {3.,aiming to achieve high-performance *** Cu layer effectively suppresses chemical corrosion and hydrogen evolution reactions and enables preferential(002)Zn deposition during the stripping/plating ***,the Cu@Zn anode represents an elongated cycle life over 4,000 h at 2 mA·cm^(-2)/2 mAh·cm^(-2).Even in conditions of high current density of 5 and 1. mA·cm^(-2),the Cu@Zn anode shows prolonged cycling stability exceeding 4000 and 2000 h,*** advantages also bring high Coulombic efficiency of 99.87%under 5 mAh·cm^(-2)in Cu@Ti||Zn half-cell over 1.00 ***,the Cu@Zn||MnO_(2)full cell demonstrates a superior cyclability with a specific capacity of 203.mAh·g^(-1.after 500 cycles a1.A·g^(-1..

关键词： Zn ion battery Zn metal anode Zn(002)plane Cu coating

Intermolecular Acid-Base-Pairs Containing Poly(p-Terphenyl-co-lsatin Piperidinium)for High Temperature Proton Exchange Membrane Fuel Cells

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Energy & Environmental Materials 2024年第3期7卷 406-414页

作者： xiaofeng Hao {1.n li Min xiao Zhiheng Huang Dongmei Han sheng Huang Wei liu Shuanjin wang Yuezhong Meng The Key Laboratory of Low-carbon Chemistry&Energy Conservation of Guangdong Province State Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275China school of Chemical {1. and technology Sun Yat-sen UniversityZhuhai 519000China Institute of Chemistry Henan Provincial Academy of SciencesZhengzhou 450000China Research Center of Green Catalysts College of ChemistryZhengzhou UniversityZhengzhou 450001China

How to optimize and regulate the distribution of phosphoric acid in matrix,and pursuing the improved electrochemical performance and service lifetime of high temperature proton exchange membrane(HT-PEMs)fuel cell are significant ***,bifunctional poly(p-terphenyl-co-isatin piperidinium)copolymer with tethered phosphonic acid(t-PA)and intrinsic tertiary amine base groups are firstly prepared and investigated as *** distinctive {1. of the copolymer provides a well-designed platform for rapid proton *** not only transports through the hydrogen bond network formed by the adsorbed free phosphoric acid(f-PA)anchored by the tertiary amine base groups,but also rely upon the proton channel constructed by the ionic cluster formed by the t-PA *** the design of the structure,the bifunctional copolymers with lower PA uptake level(1.0%)display prominent proton conductivities and peak power densities(99 mS cm^(-1.,81. mW cm^(-2)at 1.0℃),along with lower PA leaching and higher voltage stability,which is a top leading result in disclosed *** results demonstrate that the design of intermolecular acid-base-pairs can improve the proton conductivity without sacrificing the intrinsic chemical stability or mechanical property of the thin membrane,realizing win-win demands between the mechanical robustness and electrochemical properties of HT-PEMs.

关键词： bifunctional copolymer high temperature proton exchange membrane intermolecular acid-base-pairs phosphonic acid retention phosphonic acid uptake level