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Skin care design for lithium metal protection with cosmetics introduction

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Journal of Energy Chemistry 2020年第9期29卷 383-389,I0011页

作者： Yurong Tu Qingtao Ma Aoxuan Wang Xinyue Zhang Guojie Li Jiayan Luo xingjiang liu Key Laboratory for Green Chemical Technology of Ministry of Education State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Ministry of Education Key Laboratory of Materials Processing and Mold(Zhengzhou University)Zhengzhou 450002HenanChina National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power SourcesTianjin 300384China

Lithium metal anode(LMA)is the ultimate"Holy Grail"electrode for next generation high-energy-density ***,its instinct high reactivity is a formidable challenge and has intensified side reactions,destabilized the electrode/electrolyte interface and restricted the operating conditions strictly,thus hampering its practical ***,we"make up"the Li metal(M-Li)by constructing vaselinecoated layer by a simple dip-coating or casting *** the chemically stable and hydrophobic vaseline protective layer,the stability of Li towards humid and corrosive atmosphere has been greatly *** M-Li guaranteed stable and prolonged cycling life after the anode suffering from corrosion in moist air(relative humidity-65%)or corrosive electrolyte(with 10,000 ppm H2O or S)both in symmetric cells and LiFePO4 full *** work illustrates a convenient,economic,and industrial applicable method for stable LMA.

关键词： Li metal anode Interface Vaseline Corrosion resistance Industrial process

Anti-corrosive, weatherproof and self-healing polyurethane developed from hydrogenated hydroxyl-terminated polybutadiene toward surface-protective applications

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Frontiers of Materials Science 2022年第2期16卷 153-165页

作者： Yuanyuan liu Xin DU Hui WANG Yu YUAN liuhe WEI xingjiang liu Ailing SUN Yuhan LI College of Chemistry and Green Catalysis Center Zhengzhou UniversityZhengzhou 450001China Zhengzhou Key Laboratory of Elastic Sealing Materials Zhengzhou 450001China

Self-healing polyurethane(PU)faces aging deterioration due to active dynamic bonds,which remain a challenging predicament for practical *** this work,a novel strategy is developed to address this predicament by leveraging the hydrophobicity and gas barrier of hydrogenated hydroxyl-terminated polybutadiene(HHPB).The dynamic oxime-carbamate bonds derived from 2,4-pentanedione dioxime(PDO)enable the elastomer to exhibit surface self-repairability upon applied mild heat and achieve~99.5%mechanical self-healing *** mechanical properties remained nearly intact after 30-d exposure to thermal oxidation,xenon lamp,acids,bases,and *** permeability,positron annihilation lifetime spectroscopy(PALS),and contact angle measurements reveal the pivotal role of gas barrier,free volume,and hydrophobicity in blocking undesirable molecules and ions which effectively protects the elastomer from ***-PU also exhibits excellent adhesion to steel *** shear strength achieves(3.02±0.42)MPa after heating at 80°C for 4 h,and(3.06±0.2)MPa after heating at 130°C for 0.5 *** its outstanding anti-corrosive and weatherproof performances,this self-healable elastomer is a promising candidate in surface-protective applications.

关键词： hydrogenated hydroxyl-terminated polybutadiene hydrophobicity anti-aging performance self-healing surface protection

A novel monoclinic manganite/multi-walled carbon nanotubes composite as a cathode material of lithium-air batteries

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Chinese Science Bulletin 2014年第24期59卷 2973-2979页

作者： Ming Zhang Qiang Xu Lin Sang Fei Ding xingjiang liu School of Chemical Engineering and Technology Tianjin University National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power Sources

A novel composite of monoclinic manganite/multi-walled carbon nanotubes(c-MnOOH/MWCNTs)composite as a cathode material of lithium-air batteries was successfully synthesized by a simple one-step hydrothermal *** to the unique three-dimensional network of c-MnOOH embedded in the porous structure of MWCNTs,the c-MnOOH/MWCNTs composite could have an advantage of high electrocatalytic activities over those of two other kinds of cathode materials(MWCNTs and c-MnOOH/MWCNTs mixture).The results of chargedischarge tests showed that the c-MnOOH/MWCNTs composite as a cathode material of lithium-air batteries could effectively enhance the catalytic activity for the oxygen evolution reduction(OER)*** lithium-air battery based on c-MnOOH/MWCNTs composite exhibits low charge potential and high discharge capacity.

关键词：碳纳米管复合材料阴极材料空气电池单斜晶系水锰矿多壁碳纳米管电催化活性锂

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实用化高比能准固态锂离子电池体系的研究

电池工业 2024年第3期28卷 132-141页

作者：赵冬梅李杨于智航刘兴江中国电子科技集团公司第十八研究所化学与物理电源重点实验室天津300384

针对锂离子电池中电解液易泄漏、易燃烧,甚至引发爆炸等潜在安全问题,本文将单一的醚类小分子物质作为单体,与LiPF_(6)基电解液混合制备预聚前驱体,在60℃下原位衍生为非流动态的黏弹性凝聚体。通过调控单体比例、优化原位固化工艺,制... 详细信息

针对锂离子电池中电解液易泄漏、易燃烧,甚至引发爆炸等潜在安全问题,本文将单一的醚类小分子物质作为单体,与LiPF_(6)基电解液混合制备预聚前驱体,在60℃下原位衍生为非流动态的黏弹性凝聚体。通过调控单体比例、优化原位固化工艺,制备出高镍/高硅准固态锂离子电池。经测试,2.1 Ah电池体系在0.3 C电流下循环寿命达600圈,保持率比同期液态高1.8%。由更高硅含量的负极构成的36 Ah电池体系的比能量高达351 Wh/kg,500圈循环容量保持率达88.36%,准固态锂离子电池具有优异的低温性能,-20℃下容量保持率达85.6%,结果表明固化电解质在电池层内部及层间起到了良好的结构稳定性作用。该高比能准固态锂离子电池体系的开发为后续固态电池的进一步实用化提供了切实可行的途径。

关键词：固化电解质原位固化工艺准固态锂离子电池循环寿命比能量

A red-emitting water-soluble fluorescent probe for biothiol detection with a large Stokes shift

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Chinese Chemical Letters 2019年第3期30卷 563-565页

作者： Lei Yang Haiqing Xiong Yuanan Su Huihui Tian xingjiang liu Xiangzhi Song College of Chemistry & Chemical Engineering Central South University College of Chemistry & Molecular Engineering Zhengzhou University Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety

In this work, we presented a fluorescent probe(MCQ-DNBS) for selective and sensitive detection of biothiols based on a methylated chromenoquinoline(MCQ) derivative. Probe MCQ-DNBS was constructed by masking the OH group in MCQ with a common sensing unit, 2,4-dinitrobezensulfonate group(DNBS) for biothiols. Due to the photo-induced electron transfer(PET) process between MCQ and DNBS, this probe was weekly fluorescent. Upon the addition of biothiols(Cys, Hcy and GSH), this probe emitted a strong red fluorescence(λ_(em max)=613 nm) with a large Stokes shift(115 nm). In addition,fluorescence imaging of biothiols in living cells was successfully realized using MCQ-DNBS as a detector.

关键词： Fluorescent probe Biothiol Water-soluble Red-emitting Large Stokes shift

Depolarization of Li-rich Mn-based oxide via electrochemically active Prussian blue interface providing superior rate capability

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Carbon Energy 2023年第5期5卷 48-56页

作者： Youchen Hao Xifei Li Wen liu Jingjing Wang Hui Shan Wenbin Li xingjiang liu Liangxu Lin Xianyou Wang Xueliang Sun Shaanxi International Joint Research Centre of Surface Technology for Energy Storage Materials Xi'an Key Laboratory of New Energy Materials and DevicesInstitute of Advanced Electrochemical Energy&School of Materials Science and EngineeringXi'an University of TechnologyXi'anChina Science and Technology on Power Sources Laboratory Tianjin Institute of Power SourcesTianjinPR China Strait Institute of Flexible Electronics(SIFE Future Technologies)Fujian Normal UniversityFuzhouFuzhouChina Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education School of ChemistryXiangtan UniversityXiangtanHunanChina Department of Mechanical and Materials Engineering University of Western OntarioLondonOntarioCanada

The high-rate cyclability of Li-rich Mn-based oxide(LMO)is highly limited by the electrochemical polarization resulting from the slow kinetic of the Li2MnO3 ***,the Prussian blue(PB)coating layer with specific redox potential is introduced as a functionalized interface to overcome the side effect and the escaping of O on the surface of LMO,especially its poor rate *** detail,the PB layer can restrict the large polarization of LMO by sharing overloaded current at a high rate due to the synchronous redox of PB and ***,an enhanced high rate performance with capacity retention of 87.8%over 300 cycles is obtained,which is superior to 50.5%of the pristine *** strategies on the high-rate cyclability of Li-rich Mn-based oxide compatible with good low-rate performances may attract great attention for pursuing durable performances.

关键词： Li-rich Mn-based oxide Prussian blue coating layer synchronous redox high-rate cyclability

Microfluidic-oriented synthesis of enriched iridium nanodots/carbon architecture for robust electrocatalytic nitrogen fixation

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Green Energy & Environment 2024年第3期9卷 544-555页

作者： Hengyuan liu xingjiang Wu Yuhao Geng Xin Li Jianhong Xu The State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing100084China

Electrocatalytic nitrogen reduction reaction(NRR)is considered as a promising candidate to achieve ammonia synthesis because of clean electric energy,moderate reaction condition,safe operating process and harmless ***,the chemical inertness of nitrogen and poor activated capacity on catalyst surface usually produce low ammonia yield and faradic ***,the microfluidic technology is proposed to efficiently fabricate enriched iridium nanodots/carbon *** to in-situ co-precipitation reaction and microfluidic manipulation,the iridium nanodots/carbon nanomaterials possess small average size,uniform dispersion,high conductivity and abundant active sites,producing good proton activation and rapid electrons transmission and moderate adsorption/desorption *** a result,the as-prepared iridium nanodots/carbon nanomaterials realize large ammonia yield of 28.73 μg h^(-1) cm^(-2) and faradic efficiency of 9.14%in KOH ***,the high ammonia yield of 11.21 μg h^(-1) cm^(-2) and faradic efficiency of 24.30%are also achieved in H_(2)SO_(4) *** microfluidic method provides a reference for large-scale fabrication of nano-sized catalyst materials,which may accelerate the progress of electrocatalytic NRR in industrialization field.

关键词： Iridium nanodots Carbon Microfluidic technology Efficient synthesis Electrocatalytic nitrogen fixation

Electrochemical reversibility of magnesium deposition-dissolution on aluminum substrates in Grignard reagent/THF solutions

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Chinese Science Bulletin 2013年第27期58卷 3385-3389页

作者： CHENG Gang XU Qiang ZHANG Ming DING Fei liu xingjiang JIAO LiFang School of Chemical Engineering and Technology Tianjin University National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power Sources Institute of New Eenergy Material Chemistry Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education Nankai University

The electrochemical behavior of magnesium deposition-dissolution on scratched aluminum foils in Grignard reagent/tetrahydrofuran (THF) solutions (1 mol L-1 EtMgBr/THF), which is regarded as a potential electrolyte of rechargeable magnesium batteries, was studied by using various methods such as cyclic voltammetry (CV), scanning electron microscopy (SEM), X-ray diffraction (XRD) and charge-discharge (deposition-dissolution) tests. The results present that the obtained magnesium deposits do not exhibit the morphology of dendrite and the Mg-Al alloy is not found on the surface of aluminum foils. The magnesium deposited on the aluminum substrates have excellent electrochemical cyclic performance in 1 mol L-1 EtMgBr/THF solution. The aluminum can be used as a candidate material of the negative current collector for rechargeable magnesium batteries.

关键词： THF溶液电化学行为沉积铝箔格氏试剂溶解可逆性十二烷基硫酸钠

Processable Potassium Metal Anode for Stable Batteries

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Energy & Environmental Materials 2022年第4期5卷 1278-1284页

作者： Zhenghang Wei Aoxuan Wang Xuze Guan Guojie Li Zhiwei Yang Chengde Huang Jing Zhang Libin Ren Jiayan Luo xingjiang liu Key Laboratory for Green Chemical Technology of Ministry of Education State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Key Laboratory of Materials Processing and Mold Zhengzhou UniversityMinistry of EducationZhengzhou 450002China Jiangxi Key Laboratory of Nanobiomaterials Institute of Advanced MaterialsEast China Jiaotong UniversityNanchang 330013China National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power SourcesTianjin 300384China Shanghai Key Lab of Advanced High-Temperature Materials and Precision Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The future of high-energy density electrochemical energy storage systems relies on the advancement of rechargeable batteries that utilize reactive metals as *** the alkaline metal,secondary battery systems because of abundant resource,high capacity and low redox potential,potassium(K)metal secondary battery(KMB)is expected to replace the existing lithiumion battery as a versatile platform for high-energy density,cost-effective energy storage ***,the difficulty in processing metal K results in nonstandard electrodes and hinders the development of ***,the mobility of the K metal anode due to its unique lowmelting point character at elevated temperatures in practical conditions leads to severe instability and risks in chemical/electrochemical ***,we fabricate a processable and moldable composite K metal anode by encapsulating K into reduced graphene oxide(rGO).The composite electrode can be engineered into various shapes discretionarily with precise sizes and stabilize the K metal anode at relatively high ***,the composite anode exhibits excellent cycling performance at high current density(8 mA cm^(-2)) with dendrite-free *** with a Prussian blue cathode,the rGO-K composite anode shows much improved electrochemical performance and extended lifetime.

关键词： K metal anode K metal battery processibility reduced graphene oxide stability