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Enabling Argyrodite Sulfides as Superb Solid-State Electrolyte with Remarkable Interfacial Stability Against Electrodes

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Energy & Environmental Materials 2022年第3期5卷 852-864页

作者： Hongjie Xu Guoqin Cao Yonglong Shen Yuran Yu Junhua Hu Zhuo Wang Guosheng Shao School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China State Centre for International Cooperation on Designer Low-Carbon&Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001China Zhengzhou Materials Genome Institute(ZMGI) Building 2Zhongyuanzhigu Xingyang 450100China

While argyrodite sulfides are getting more and more attention as highly promising solid-state electrolytes(SSEs)for solid batteries,they also suffer from the typical sulfide setbacks such as poor electrochemical compatibility with Li anode and high-voltage cathodes and serious sensitivity to humid air,which hinders their practical applications.Herein,we have devised an effective strategy to overcome these challenging shortcomings through modification of chalcogen chemistry under the guidance of theoretical modeling.The resultant Li_(6.25)PS_(4)O_(1.25)Cl_(0.75)delivered excellent electrochemical compatibility with both pure Li anode and high-voltage LiCoO_(2)cathode,without compromising the superb ionic conductivity of the pristine sulfide.Furthermore,the current SSE also exhibited highly improved stability to oxygen and humidity,with further advantage being more insulating to electrons.The remarkably enhanced compatibility with electrodes is attributed to in situ formation of helpful electrolyte–electrode interphases.The formation of in situ anode–electrolyte interphase(AEI)enabled stable Li plating/stripping in the Li|Li_(6.25)PS_(4)O_(1.25)Cl_(0.75)|Li symmetric cells at a high current density up to 1 mA cm^(-2)over 200 h and 2 mA cm^(-2)for another 100 h.The in situ amorphous nano-film cathode–electrolyte interphase(CEI)facilitated protection of the SSE from decomposition at elevated voltage.Consequently,the synergistic effect of AEI and CEI helped the LiCoO_(2)|Li_(6.25)PS_(4)O_(1.25)Cl_(0.75)|Li full-battery cell to achieve markedly better cycling stability than that using the pristine Li_(6)PS_(5)Cl as SSE,at a high area loading of the active cathode material(4 mg cm^(-2))in type-2032 coin cells.This work is to add a desirable SSE in the argyrodite sulfide family,so that high-performance solid battery cells could be fabricated without the usual need of strict control of the ambient atmosphere.

关键词： al oying chemistry argyrodite sulfide compatibility with high-voltage cathode and lithium anode fast solid lithium ion conductor resilience to humid air

In-plane grain boundary induced defect state in hierarchical NiCo-LDH and effect on battery-type charge storage

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Nano Research 2023年第4期16卷 4908-4916页

作者： Jinjin Ban Xiaohan Wen Honghong Lei Guoqin Cao Xinhong Liu Chunyao Niu Guosheng Shao Junhua Hu School of Materials Science and Engineering Industrial Technology Research Institute of Resource and Materials of Henan ProvinceZhengzhou UniversityZhengzhou 450001China State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou University100 Kexue AvenueZhengzhou 450001China Henan Provincial Key Laboratory for Metal Fuel Battery Foguang Power Generation Equipment Co.Ltd50 Holly StreetZhengzhou 450000China International Laboratory for Quantum Functional Materials of Henan School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China

Domain boundaries are regarded as the effective active sites for electrochemical energy storage materials due to defects enrichment therein.However,layered double hydroxides(LDHs)tend to grow into single crystalline nano sheets due to their unique two-dimentional(2D)lattice structure.Previously,much efforts were made on the designing hierarchical structure to provide more exposed electroactive sites as well as accelerate the mass transfer.Herein,we demonstrate a strategy to introduce low angle grain boundary(LAGB)in the flakes of Ni/Co layered double hydroxides(NiCo-LDHs).These defect-rich nano flakes were self-assembled into hydrangea-like spheres that further constructed hollow cage structure.Both the formation of hierarchical structure and grain boundaries are interpreted with the synergistic effect of Ni2+/Co2+ratio in an“etching-growth”process.The domain boundary defect also results in the preferential formation of oxygen vacancy(Vo).Additionally,density functional theory(DFT)calculation reveals that Co substitution is a critical factor for the formation of adjacent lattice defects,which contributes to the formation of domains boundary.The fabricated battery-type Faradaic NiCo-LDH-2 electrode material exhibits significantly enhanced specific capacitance of 899 C·g^(−1)at a current density of 1 A·g^(−1).NiCo-LDH-2//AC asymmetric capacitor shows a maximum energy density of 101.1 Wh·kg^(−1)at the power density of 1.5 kW·kg^(−1).

关键词： sacrificial template grain boundary oxygen vacancy(Vo) hierarchical structure

Durable self-polishing antifouling Cu-Ti coating by a micron-scale Cu/Ti laminated microstructure design

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Journal of Materials Science & Technology 2021年第20期79卷 62-74页

作者： Jiajia Tian Kangwei Xu Junhua Hu Shijie Zhang Guoqin Cao Guosheng Shao State Centre for International Cooperation on Designer Low-Carbon and Environmental Material(SCICDLCEM) School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001China Special Functional Materials Department Luoyang Ship Material Research InstituteLuoyang471023China School of Life Science Zhengzhou UniversityZhengzhou450001China

Marine biofouling is a major issue deteriorating the service performance and lifespan of marine infrastructures.The development of a durable,long-term,and environment-friendly antifouling coating is therefore of significant importance but still a critical challenge in maritime engineering.Herein,we developed a Cu-Ti composite antifouling coating with micron-sized alternating laminated-structure of Cu/Ti by plasma spraying of mechanically mixed Cu/Ti powders.The coating was designed to enable controlled release of Cu ions through galvanic dissolution of Cu laminates from the Cu/Ti micro-galvanic cell in aqueous solution.Results showed that remarkable antifouling efficiency against bacterial survival and adhesion up to~100%was achieved for the Cu-Ti coating.Cu/Ti micro-galvanic cell was in-situ formed within Cu-Ti coating and responsible for its Cu ions release.The successive dissolution of Cu laminates resulted in the formation of micro-channels under Ti laminates near surface,which contributed to controlled slow Cu ions release and self-polishing effect.Thus,environment-friendly antifouling capability and∼200%longer antifouling lifetime than that of the conventional organic antifouling coatings can be achieved for the Cu-Ti coating.On the other hand,as compared to the conventional organic antifouling coatings,the Cu-Ti composite coating presented much higher mechanical durability due to its strong adhesion strength,excellent mechanical properties,and two orders lower wear rate.The present laminated Cu-Ti coating exhibits combination of outstanding antifouling performance and high mechanical durability,which makes this coating very potentially candidates in marine antifouling application.

关键词： Marine antifouling Cu-Ti coating Plasma spraying Micro-galvanic dissolution Durable Self-polishing

Recent advances based on Mg anodes and their interfacial modulation in Mg batteries

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Journal of Magnesium and Alloys 2022年第10期10卷 2699-2716页

作者： Fanfan Liu Guoqin Cao Jinjin Ban Honghong Lei Yan Zhang Guosheng Shao Aiguo Zhou Li zhen Fan Junhua Hu School of Materials Science and Engineering Industrial Technology Research Institute of Resource and Materials of Henan ProvinceZhengzhou UniversityZhengzhou 450001China State Center for International Cooperation on Designer Low-carbon and Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001China Henan Provincial Key Laboratory for Metal Fuel Battery Foguang Power Generation Equipment Co.Ltd50 Holly StreetZhengzhou 450000China School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167China Henan Key Laboratory of Materials on Deep-Earth Engineering School of Materials Science and EngineeringHenan Polytechnic UniversityJiaozuo 454000China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China

Magnesium(Mg)batteries(MBs),as post-lithium-ion batteries,have received great attention in recent years due to their advantages of high energy density,low cost,and safety insurance.However,the formation of passivation layers on the surface of Mg metal anode and the poor compatibility between Mg metal and conventional electrolytes during charge-discharge cycles seriously affect the performance of MBs.The great possibility of generating Mg dendrites has also caused controversy among researchers.Moreover,the regulation of Mg deposition and the enhancement of battery cycle stability is largely limited by interfacial stability between Mg metal anode and electrolyte.In this review,recent advances in interfacial science and engineering of MBs are summarized and discussed.Special attention is given to interfacial chemistry including passivation layer formation,incompatibilities,ion transport,and dendrite growth.Strategies for building stable electrode/interfaces,such as anode designing and electrolyte modification,construction of artificial solid electrolyte interphase(SEI)layers,and development of solid-state electrolytes to improve interfacial contacts and inhibit Mg dendrite and passivation layer formation,are reviewed.Innovative approaches,representative examples,and challenges in developing high-performance anodes are described in detail.Based on the review of these strategies,reference is provided for future research to improve the performance of MBs,especially in terms of interface and anode design.

关键词： Magnesium anode Dendrite Passivation layers Interfacial engineering Solid electrolyte interphase

Enabling High-Performance Sodium Battery Anodes by Complete Reduction of Graphene Oxide and Cooperative In-Situ Crystallization of Ultrafine SnO_(2)Nanocrystals

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Energy & Environmental Materials 2023年第3期6卷 356-365页

作者： Junwu Sang Kangli Liu Xiangdan Zhang Shijie Zhang Guoqin Cao Yonglong Shen Guosheng Shao School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China State Centre for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001China Zhengzhou Materials Genome Institute(ZMGI) XingyangZhengzhou 450100China Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001China

The main bottleneck against industrial utilization of sodium ion batteries(SIBs)is the lack of high-capacity electrodes to rival those of the benchmark lithium ion batteries(LIBs).Here in this work,we have developed an economical method for in situ fabrication of nanocomposites made of crystalline few-layer graphene sheets loaded with ultrafine SnO_(2)nanocrystals,using short exposure of microwave to xerogel of graphene oxide(GO)and tin tetrachloride containing minute catalyzing dispersoids of chemically reduced GO(RGO).The resultant nanocomposites(SnO_(2)@MWG)enabled significantly quickened redox processes as SIB anode,which led to remarkable full anode-specific capacity reaching 538 mAh g^(−1)at 0.05 A g^(−1)(about 1.45 times of the theoretical capacity of graphite for the LIB),in addition to outstanding rate performance over prolonged charge–discharge cycling.Anodes based on the optimized SnO_(2)@MWG delivered stable performance over 2000 cycles even at a high current density of 5 A g^(−1),and capacity retention of over 70.4%was maintained at a high areal loading of 3.4 mg cm^(−2),highly desirable for high energy density SIBs to rival the current benchmark LIBs.

关键词： in situ compositing microwave reduced graphene oxide sodium ion battery sodium ion battery anode ultrafine SnO_(2)nanocrystals

Quantitative study of dimensional stability mechanism and microstructure evolution during precipitation process of 2024Al alloy

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Journal of Materials Science & Technology 2021年第31期90卷 85-94页

作者： Youfang cao Longtao Jiang Deng Gong guoqin Chen Ziyang Xiu Yangming Cheng Xiufang Wang Gaohui Wua School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Advanced Welding Production Technology Harbin Institute of TechnologyHarbin 150001China Shanghai Institute of Microsystem and Information Technology Chinese Academy of SciencesShanghai 200050China

In this paper,we were devoted to quantitatively analyzing the dimensional change of 2024 Al alloy during the aging process.Types of precipitates have been defined and the corresponding volume fraction has been measured with Transmission Electron Microscopy(TEM)and Three-Dimensional Atom Probe Tomography(3 D-APT).Guinier-Preston-Bagaryatsky(GPB)zone(0.86 vol.%)was found after aging for 8 h.GPB zone(0.17 vol.%)and S'phase(1.02 vol.%)was found after aging for 24 h.The reduced dimensional change was attributed to the reduction of matrix lattice parameter.Relative to the initial supersaturated solid solution state,the lattice strain of-2.79×10^(-5)and-5.16×10^(-5)was produced after 8 h and 24 h aging respectively.The difference of the lattice parameters between the precipitates and matrix was also considered.A model was established to quantitatively describe the relationship between the precipitation process and dimensional change of 2024 Al alloy.

关键词： Aluminum alloy Aging Atom probe tomography(APT) Dimensional stability Precipitate

Tribological and mechanical behaviours of resin-based friction materials based on microcrack filling

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Biosurface and Biotribology 2023年第1期9卷 1-8页

作者： Lekai Li Guixiong Gao Jin Tong Jian Zhuang Wei Song Yunhai Ma guoqin Liu Feipeng cao Shengwang Yuan Qifeng Zhang Key Laboratory of Bionic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchunChina

To enhance the friction performance of resin-based friction materials,five types of specimens with different polymer ether ketone(PEEK)contents were fabricated and their physiomechanical behaviours were tested and,their tribological properties were investigated using a JF150F-II constant-speed tester.It was found that the addition of PEEK had a positive influence on the properties of the friction materials,and sample FM-3(the shorthand of‘Friction Materials-3’,containing 2 wt%PEEK)exhibited improved friction performance with a fade ratio and recovery ratio of 8.6%and 101.1%respectively.Among all samples,FM-4(the shorthand of‘Friction Materials-4’,con-taining 3 wt%PEEK)had the lowest specific wear rate with a value of 0.622×10^(−7)cm^(3)(N⋅m)^(−1)at 350℃.The PEEK can fill the microcracks in the composite at a high tem-perature and can also cover the hard abrasive particles to prevent them from directly damaging the composite.The findings from this study afford a foundation for studies to further improve the properties of resin-based friction materials.

关键词： fade ratios friction materials PEEK recovery ratios specific wear rate

Radioactive probe-guided parathyroidectomy for secondary hyperparathyroidism

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Chinese Medical Journal 2014年第13期127卷 2413-2418页

作者： Yuan Fei Yu Weijia Waqas Ahmad Yang Zhixue cao Hua Li Juncheng Jiang guoqin Department of General Surgery the Second Affiliated Hospital ofSoochow University Suzhou Jiangsu 215004 China

Background The value of gamma probes in the surgical treatment of secondary hyperparathyroidism （sHPT） was determined.The aim of this study was to enhance the rate of successful total parathyroidectomy in patients with sHPT using intraoperative gamma probe investigations.Methods We retrospectively analyzed the clinical data of 48 sHPT patients between May 2007 and September 2011.Preoperative 99Tcm-methoxyisobutyl isonitrile （MIBI） scintigraphy and high-frequency ultrasonography were used for parathyroid localization.Thirty-five patients （group Ⅰ） underwent conventional neck exploration and open parathyroidectomy.Thirteen patients （group Ⅱ） underwent gamma probe-guided total parathyroidectomy and parathyroid transplantation.The two groups were compared in terms of the number of parathyroid resections,operative time,and postoperative changes in the blood levels of parathyroid hormone （PTH）,calcium,and phosphate.Results The clinical manifestations,PTH and calcium levels,age distribution,and clinical characteristics did not differ between the two groups.The accuracy of preoperative 99Tcm-MIBI scintigraphy （89.74％） for the diagnosis of hyperparathyroidism did not differ from that of ultrasonography （81.25％）.However,the accuracy of 99TcmMIBI scintigraphy （66.67％） for localizing hyperfunctioning parathyroids was significantly lower than that of ultrasonography （76.86％）.The operation time was significantly longer in group Ⅰ （（120±25） minutes） than in group Ⅱ （（90±30） minutes）.The accuracy of parathyroid identification was significantly higher in group Ⅱ （92.59％） than in group Ⅰ （80.39％）.On average,significantly fewer parathyroid specimens were obtained in group Ⅰ （2.5±0.5） than in group Ⅱ （3.5±0.5）.Compared with group Ⅰ,group Ⅱ showed a significant increase （15.4％） in the number of parathyroid resections.The PTH,calcium,and phosphate levels significantly decreased postoperatively in all patients.Conclusions Intraoperative gamma probe examination confirmed that the excised specimen was parathyroid tissue and improved the

关键词： secondary hyperparathyroidism hyperthyroidism 99Tcm-MIBI imaging gamma probe

Ni2P Nanosheets:A High Catalytic Activity Platform for Electrochemical Detection of Acetaminophen

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Chinese Journal of Chemistry 2021年第7期39卷 1849-1854页

作者： Ming Wei Wenbo Lu guoqin Liu Yimin Jiang Xuebo Liu Liwei Bai Xiaowei cao Jianfeng Jia Haishun Wu Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) School of Chemistry and Material ScienceShanxi Normal UniversityLinfenShanxi041004 China Kangda College of Nanjing Medical University LianyungangJiangsu222000 China Institute of Translational Medicine Medical CollegeYangzhou UniversityYangzhouJiangsu225001 China

Main observation and conclusion Accurate determination of acetaminophen concentration is essential for studying the metabolic status of acetaminophen in clinical practice.In this study,nickel phosphide was used for el... 详细信息

关键词： Acetaminophen Nickel phosphide Electrochemistry Sensors Nanotechnology