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中国化学快报（英文版）
中国化学快报（英文版）

梁晓天

月刊

1001-8417

cclbj@imm.ac.cn

010-63165638

100050

北京市先农坛街1号

中国化学快报（英文版）/Journal Chinese Chemical LettersCSCDCSTPCD北大核心SCI
查看更多>>本刊是由中国科协主管、中国化学会主办、中国医学科学院药物所承办的学术期刊，是由著名化学家梁晓天院士主编。是中国化学界通向世界的窗口，内容覆盖化学全领域。本刊的办刊宗旨是“新、快、准”，我们将坚持这个宗旨，力求及时反映化学研究中各个相关领域内的最新进展及热点问题，主要读者群是科研人员、研究生、大学教师。现已被国内外多家数据库收录，如SCI　Search、Chemical Abstract、Research Alert、Chemistry Citation Index、《日本科技文献速报》、万方数据数字化期刊群、中国学术期刊过刊全文数据库、中国学术期刊（光盘版）、中国学术期刊文摘、中文期刊全文数据库、俄罗斯Рж期刊源等。
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    Uniform lithium deposition induced by copper phthalocyanine additive for durable lithium anode in lithium-sulfur batteries

    Ting HuYuxuan GuoYixuan MengZe Zhang...
    447-452页
    查看更多>>摘要：Copper phthalocyanine(CuPc)is adopted as an electrolyte additive to stabilize lithium anode for lithium-sulfur(Li-S)batteries.CuPc with a planar molecular structure and lithiophilic N-containing group,is likely to be adsorbed on the surface of Li anode to form a coating layer,which can restrict the direct contact between Li anode and solvents,and guide the uniform deposition of Li+ions.The Li‖Li symmetric cells demonstrate a stable cycle performance,and Li‖Cu cells show high Coulombic efficiencies.In Li-S batter-ies,the formed stable solid-electrolyte interface(SEI)film containing copper sulfides can protect Li anode from the polysulfide corrosion and side reactions with the electrolyte,leading to the compact and smooth surface morphology of Li anode.Therefore,the Li-S batteries with CuPc additive deliver much higher ca-pacity,better cycle performance and rate capability as compared to the one without CuPc additive.
      原文链接:
    • 万方数据
    • 维普

    Suppression of multistep phase transitions of O3-type cathode for sodium-ion batteries

    Shengyu ZhaoQinhao ShiWuliang FengYang Liu...
    453-458页
    查看更多>>摘要：O3-type layered oxide cathodes have been widely investigated due to their high reversible capacities and sufficient Na+reservoirs.However,such materials usually suffer from complex multistep phase transitions along with drastic volume changes,leading to the unsatisfied cycle performance.Herein,we report a Mg/Ti co-doped O3-type NaNi0.5Mn0.5O2,which can effectively suppress the complex multistep phase transition and realize a solid-solution reaction within a wide voltage range.It is confirmed that,the Mg/Ti co-doping is beneficial to enhance the structural stability and integrity by absorbing micro-strain and distortions.Thus,the as obtained sample delivers an outstanding cyclic performance(82.3％after 200 cycles at 1 C)in the voltage range of 2.0-4.0V,and a high discharge capacity of 86.6 mAh/g after 100 cycles within the wide voltage range(2.0-4.5V),which outperform the existing literatures.This co-doping strategy offers new insights into high performance O3-type cathode for sodium ion batteries.
      原文链接:
    • 万方数据
    • 维普

    Dual-additives enable stable electrode-electrolyte interfaces for long life Li-SPAN batteries

    Zhenqiang GuoHuicong YangQian WeiShengjun Xu...
    459-465页
    查看更多>>摘要：Sulfurized polyacrylonitrile(SPAN)is proposed as a promising cathode material for lithium sulfur bat-teries.However,the continuous side reactions at the electrolyte-electrode interfaces as well as the slow redox kinetics of SPAN cathode deteriorate the electrochemical performance.In this study,an electrolyte with dual-additives comprising 2-fluoropyridine(2-FP)and lithium difluorobis(oxalato)phosphate(LiDF-BOP)was used to improve the performance of Li‖ SPAN cells.2-FP has a lower lowest occupied molecular orbital energy than that of the solvents in the electrolyte,leading to its prior reduction.A LiF-rich film can be formed on the electrode,effectively improving the stability of the electrolyte-electrode interfaces and prolonging the life.Simultaneously,LiDFBOP could form an electrolyte-electrode interface film contain-ing a large amount of LixPOyFz species,compensating for the kinetic deterioration caused by the lower ionic conductive of LiF formed at the electrolyte-electrode interface.Hence,an electrode-interface film with good chemical stability and high Li+transport was established by LiF and LixPOyFz-rich species.The Li‖SPAN cell with the electrolyte containing dual-additives demonstrates an excellent capacity retention of 97.5％after 200 cycles at 1.0 C,25 ℃,comparing to 56.2％capacity retention without additives.More-over,the rate capacities of cells with dual-additives can reach 1128.1 mAh/g at 5 C,comparing to only 813.5 mAh/g using electrolyte without additives.Our results shown that the dual-additives in electrolyte provide a promising strategy for practical application of lithium sulfur batteries with SPAN cathodes.
      原文链接:
    • 万方数据
    • 维普

    In-situ imaging electrocatalysis in a solid-state Li-O2 battery with CuSe nanosheets as air cathode

    Peng JiaYunna GuoDongliang ChenXuedong Zhang...
    466-470页
    查看更多>>摘要：The development of highly efficient catalysts in the cathodes of rechargeable Li-O2 batteries is a consider-able challenge.To enhance the electrochemical performance of the Li-O2 battery,it is essential to choose a suitable catalyst material.Copper selenide(CuSe)is considered as a more promising cathode catalyst material for Li-O2 battery due to its better conductivity and rich electrochemical active sites.However,its electrochemical reaction and fundamental catalytic mechanism remain unclear till now.Herein,in-situ environmental transmission electron microscopy technique was used to study the catalysis mechanism of the CuSe nanosheets in Li-O2 batteries during discharge and charge processes.It is found that Li2O was formed and decomposed around the ultrafine-grained Cu during the discharge and charge processes,respectively,demonstrating excellent cycling.This indicate that the freshly formed ultrafine-grained Cu in the conversion reaction catalyzed the latter four-electron-transfer oxygen reduction reaction,leading to the formation of Li2O.Our study provides important understanding of the electrochemistry of the Li-O2 nanobatteries,which will aid the development of high-performance Li-O2 batteries for energy storage applications.
      原文链接:
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    ～2.5 nm pores in carbon-based cathode promise better zinc-iodine batteries

    Yajun HouChuanzheng ZhuQiang WangXiaomeng Zhao...
    471-476页
    查看更多>>摘要：The relationship mechanism between the material pore structures and cathodic iodine chemistry plays a vital role in efficient Zn-I2 batteries,but is unclear,retarding further advances.This work innovatively indicates a great contribution of～2.5nm pore structure of nanocarbons to efficient iodine adsorption,rapid I-↔ I2 conversion,and polyiodide inhibition,via scrupulously designing catalysts with controllable pore sizes systematically.The I2-loading within the designed nitrogen-doped nanocarbons can reach up to as high as 60.8 wt％.The batteries based on the cathode deliver impressive performances with a large capacity of 178.8 mAh/g and long-term cycling stability more than 4000 h at 5.0 C.Notably,these is no polyiodide such as I3-and I5-detected during the charge-discharge processes from comprehensive elec-trochemical cyclic voltammetry,X-ray photoelectron spectroscopy,and Raman technique.This work pro-vides a novel knowledge-guided concept for rational pore design,promising better Zn-I2 batteries,which is also hoped to benefit other advanced energy technologies,such as Li-S,Li-ion,and Al-I2 batteries.
      原文链接:
    • 万方数据

    Crystal engineering regulation achieving inverse temperature symmetry breaking ferroelasticity in a cationic displacement type hybrid perovskite system

    Na WangWang LuoHuaiyi ShenHuakai Li...
    477-481页
    查看更多>>摘要：Ferroelastic hybrid perovskite materials have been revealed the significance in the applications of switches,sensors,actuators,etc.However,it remains a challenge to design high-temperature ferroelastic to meet the requirements for the practical applications.Herein,we reported an one-dimensional organic-inorganic hybrid perovskites(OIHP)(3-methylpyrazolium)CdCl3(3-MBCC),which possesses a mmmF2/m ferroelastic phase transition at 263 K.Moreover,utilizing crystal engineering,we replace-CH3 with-NH2 and-H,which increases the intermolecular force between organic cations and inorganic frameworks.The phase transition temperature of(3-aminopyrazolium)CdCl3(3-ABCC),and(pyrazolium)CdCl3(BCC)in-creased by 73 K and 10 K,respectively.Particularly,BCC undergoes an unconventional inverse temperature symmetry breaking(ISTB)ferroelastic phase transition around 273 K.Differently,it transforms from a high symmetry low-temperature paraelastic phase(point group 2/m)to a low symmetry high-temperature fer-roelastic phase(point group(1))originating from the rare mechanism of displacement of organic cations phase transition.It means that crystal BCC retains in ferroelastic phase above 273 K until melting point(446 K).Furthermore,characteristic ferroelastic domain patterns on crystal BCC are confirmed with po-larized optical microscopy.Our study enriches the molecular mechanism of ferroelastics in the family of organic-inorganic hybrids and opens up a new avenue for exploring high-temperature ferroic materials.
      原文链接:
    • 万方数据
    • 维普

    Modulating the degree of O vacancy defects to achieve selective control of electrochemical CO2 reduction products

    Tianbo JiaLili WangZhouhao ZhuBaikang Zhu...
    482-486页
    查看更多>>摘要：Conversion of CO2 into high-value products using electrochemical CO2 reduction(ECR)technology is an effective way to alleviate global warming and reach carbon neutrality.The oxygen vacancies in heteroge-nous catalysis are generally considered as a powerful method to enhance the performance of ECR by promoting CO2 adsorption and activation.However,the extent of defects in oxygen vacancies-activity re-lation has rarely been studied.Herein,we prepared Cu-Cd bimetallic catalysts with adjustable oxygen defect degree by controlling the amount of cadmium addition.Fourier transform infrared spectroscopy characterization results reveal that the formation of oxygen vacancies is attributed to the asymmetric stretching of Cu-O by the addition of cadmium.Electrochemical results show that the oxygen defect de-gree can modulate the selectivity of ECR products.A low degree of oxygen defects(CuO)is generally associated with lower product Faraday efficiency(FEC2/FEC1 ≈ 114％),but overabundant oxygen vacancies(CuO2.625-CdO0.375)are not entirely favorable to improving ECR activity(FEC2/FEC1 ≈ 125％)and single se-lectivity,while an appropriate degree of oxygen vacancies(CuO2.75-CdO0.25)can facilitate the ECR process toward single product selective production(FEC2/FEC1≈ 296％).The theoretical calculation showed that the O vacancy formed on CuO and the interface between CdO and CuO were conducive to enhancing the formation of*COOH intermediate and promoting the generation of ethylene products.This study pro-vides a new approach and insight into the selective production of single products for future industrial applications of ECR.
      原文链接:
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    Evolution exploration and structure prediction of Keggin-type group IVB metal-oxo clusters

    Run-Han LiTian-Yi DangWei GuanJiang Liu...
    487-492页
    查看更多>>摘要：The fascinating chemical structure and broad application prospect of Keggin-type polyoxometalates(POMs)have attracted many chemists to explore and discover continuously.Unlike the traditional Keggin,larger metal atomic radius,higher metal coordinated numbers,lower metal valence states and other fea-tures allow the group IVB metal-based Keggin(IVB-Keggin)more space and unknown in terms of struc-ture and performance.Herein,density functional theory(DFT)calculations were performed to explore the influences including cores,shells,caps,and terminal ligands,et al.on IVB-Keggin,and analyze the possibility of novel structure synthesis.From the perspective of multi-layer onion-like clusters,molecu-lar energy level,host-guest interaction energy,surface charge and covalent bond polarity can be further adjusted to achieve the oriented design of functional IVB-Keggin.These insights are expected to provide theoretical support for experimental synthesis,opening a new perspective to understand the growth of Keggin.
      原文链接:
    • 万方数据
    • 维普

    Polyphenol-mediated interfacial deposition strategy for supported manganese oxide catalysts with excellent pollutant degradation performance

    Dong ChengYouyou FengBingxi FengKe Wang...
    493-498页
    查看更多>>摘要：In persulfate-based advanced oxidation process(PS-AOPs),fixing nanosized metal oxide on processable substrates is highly desirable to avoid the aggregation and loss of nanocatalysts during the practical ap-plication.However,it is still challenging to develop a versatile strategy for the deposition of metal oxide nanocatalysts on various substrates with different physicochemical properties.Herein,polyphenols are utilized as a"molecular glue"and reductant to mediate the interfacial deposition of MnO2 nanocatalysts on different substrates.MnO2 nanocatalysts were in-situ grown on macroscope mineral substrates(e.g.,airstone)via an interfacial redox strategy between tannic acid(TA)and oxidized KMnO4,and then em-ployed as a fixed catalyst of peroxymonosulfate(PMS)activation for treating pharmaceutical and personal care products(PPCPs)in water.The fixed MnO2 exhibited superior catalytic performance toward differ-ent PPCPS via a singlet oxygen(1O2)-dominated nonradical oxidation pathway.PPCPs in the secondary effluent of wastewater treatment plants could be effectively removed by a fixed-bed column of the fixed MnO2 with long term stability.Redox cycle of Mn4+/Mn3+and surface hydroxyl group of the fixed MnO2 was proved to be responsible for the activation of PMS.This work provides a new avenue for developing fixed metal oxides for sustainable water treatment.
      原文链接:
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    • 维普

    Boosting the performance of LiNi0.90Co0.06Mn0.04O2 electrode by uniform Li3PO4 coating via atomic layer deposition

    Mingjiao LuZhixing WangGui LuoHuajun Guo...
    499-503页
    查看更多>>摘要：Ultra-high nickel material is considered to be a promising cathode material.However,with the increase of nickel content,the interfacial side reactions between the cathode and electrolyte become increas-ingly serious.Herein,an atomically controllable ionic conductor Li3PO4(LPO)coating is deposited on the LiNi0.90Co0.06Mn0.04O2(NCM9064)based electrode by the atomic layer deposition method.The results shows that the LPO coating is uniformly and densely covered on the surface of secondary particles of NCM9064,helping to prevent the direct contact between the electrolyte and cathode during the charging-discharging process.In addition,the coating layer is electrochemically stable.As a result,the interfacial side reactions during the long cycle are effectively suppressed,and the solid electrolyte interphase layer at the interface is stabilized.The electrode with 20 layers of LPO deposition(ALD-LPO-20)exhibits an excellent capacity retention of 81％after 200 cycles in 2.8-4.3 V at 25 ℃,which is 18％higher than the unmodified material(ALD-LPO-0).Besides,the moderate LPO coating improves the rate capability and high temperature cycling performance of NCM9064.This study provides a method for the modification of ultra-high nickel cathode materials and corresponding electrodes.
      原文链接:
    • 万方数据