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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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    Strong metal-support interaction between AuPd nanoparticles and oxygen-rich defect ZrO2 for enhanced catalytic 5-hydroxymethylfurfural oxidation

    Yunlei ZhangYiran LiuWen GuanMengxue Cao...
    507-511页
    查看更多>>摘要：The unique properties of metal oxide surfaces,crystal surfaces and defects play vital roles in biomass upgrading reactions.In this work,hierarchical porous bowl-shaped ZrO2(HB-ZrO2)with mixed crystal phase was designed and employed as the support for loading AuPd bimetal with different proportions to synthesize AuPd/HB-ZrO2 catalysts.The effects of surface chemistry,oxygen defects,bimetal interaction and metal-support interaction of AuPd/HB-ZrO2 on catalytic performance for the selective oxidation of 5-hydroxymethylfurfural(HMF)to 2,5-furandicarboxylic acid(FDCA)were systematically investigated.The Au2Pd1/HB-ZrO2 catalyst afforded a satisfactory FDCA yield of 99.9％from HMF oxidation using O2 as the oxidant in water,accompanied with an excellent FDCA productivity at 97.6 mmol g-1 h-1.This work offers fresh insights into rationally designing efficient catalysts with oxygen-rich defects for the catalytic upgrading of biomass platform chemicals.
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    Cubic S/N co-doped TiO2 with rich oxygen vacancies from Ti-MOFs for efficient elimination of formaldehyde

    Qing GaoLei SunZhihua WangJiguang Deng...
    512-515页
    查看更多>>摘要：The cubic S/N co-doped TiO2(TNSx,x is the calcination temperature)photocatalysts with rich oxygen va-cancies were obtained by high temperature calcination of sulfur powder and titanium-based MOFs NH2-MIL-125 for the photocatalytic removal of gaseous formaldehyde(a volatile organic compound).Among the obtained catalysts,the presence of oxygen vacancies restricted photogenerated electron and holes re-combination.98.00％removal of gaseous formaldehyde in 150 min could be achieved over TNS600 by xenon lamp.The removal efficiency for formaldehyde was well retained for five cycle experiment.The results from PL,TRPL and EIS revealed that TNS600 had the best separation efficiency of photogenerated electrons and holes,and the enhanced charge separation led to a significant increase in photocatalytic activity.The photocatalytic oxidation mechanism indicated that the·OH and·O2-radicals were mainly involved in the efficient elimination of gaseous formaldehyde and were able to mineralize formaldehyde to H2O and CO2.
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    Rapid analysis of metal ions and organic compounds in strong acidic solutions by nano-ESI mass spectrometry

    Jiaquan XuTing LiZhendong YuLili Song...
    516-520页
    查看更多>>摘要：Rapid analysis of metal ions and organic compounds in strong acidic solutions is of sustainable interest in multiple disciplines.However,complicated and time-consuming pretreatments are always required for MS analysis of the compounds in strong acidic solutions.Otherwise,it will result in a weak signal and cause serious damage to the mass spectrometer.Herein,a simple method inherited from nano-ESI MS was developed for rapid analysis of strong acidic solutions.Nanoliter(nL)strong acidic solution was first loaded in the nano-ESI emitter,followed by evaporation to remove the H+and leave the analytes on the wall of the nano-ESI emitter.The evaporation process can be completed within 1 min because of the extremely tiny volume(≤1 nL)of the loaded solution.Then,the dried analytes on the wall of the nano-ESI emitter were redissolved by loading a new solvent,followed by nano-ESI MS analysis.By using this method,metal ions and organic compounds in the strong acidic solution can be detected with low sample consumption(1 nL),high speed(＜2 min/sample),high sensitivity(limit of detection=0.2 μg/L),and high accuracy(＞90％).Proof-of-concept applications of the present method have been successfully achieved for the analysis of gastric juice(pH of the sample=1),monitoring reaction catalyzed by strong acid(pH of the system=0),and micro-area analysis of ores(pH of the extraction solvent=0),showing great application potential in multiple fields.
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    Highly uniform Co-Cu bimetallic sulfides for rechargeable alkaline aqueous zinc batteries

    Xiaofang BaiYuwei ZhaoMangwei CuiTianshuo Guo...
    521-526页
    查看更多>>摘要：Rechargeable alkaline aqueous zinc batteries(RAZBs)have attracted increasing attention.However,most RAZBs are hindered by the limited availability of cathode materials.The practical electrochemical perfor-mance of most cathode materials is lower than the theoretical value due to their poor electrical conduc-tivity and low utilization capacity.In this work,we develop a facile hydrothermal procedure to prepare highly uniform bimetallic sulfides as novel cathode materials for RAZBs.Copper-cobalt binary metallic oxides materials possess higher conductivity and larger capacity compared with their mono-metal oxides compounds due to bimetallic synergistic effects and multiple oxidation states.Furthermore,bimetallic sulfide compounds have smaller bond energy and longer bond length than their oxides,leading to less structural damage,faster kinetics of electrochemical reactions,and better stability.The as-prepared Co-Cu bimetallic sulfides show enhanced electrochemical performance due to various valences of Co and Cu as well as the existence of S.As a result,aqueous Zn/CuCo2S4 battery shows a high specific capacity of 117.4 mAh/g at 4 A/g and a good cycle life of over 8000 cycles.Based on PANa hydrogel electrolytes,a flexible Zn/CuCo2S4 battery demonstrates excellent cycling stability.This battery can also meet the requirements of electronic devices with different shapes and performs well in extreme environments,such as freezing,drilling,and hammering.This work opens new avenues to obtain high-rate and long-life cathode mate-rials for RAZBs by utilizing the synergistic effects of bimetallic sulfides and provides a new platform for flexible energy storage devices.
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    Weak interaction-steered evolution of polyoxovanadate-based metal-organic polyhedra from transformation via interlock to packing

    Yan-Hu WangKe-Wei TongChao-Qin ChenJing Du...
    527-533页
    查看更多>>摘要：A bottleneck in biomimetic synthesis consists in the full copy of,for example,the hierarchical structure of proteins directed by weak interactions.By contrast with covalent bonds bearing definite orientation and high stability,weak intermolecular forces within a continuous dynamic equilibrium can be hardly tamed for molecular design.In this endeavor,a ligand-dominated strategy that embodies tunable electrostatic repulsion and π…π stacking was first employed to shape polyoxovanadate-based metal-organic polyhe-dra(VMOPs).Structural evolution involving transformation,interlock,and discovery of an unprecedented prototype of the Star of David was hence achievable.Not only as a handy tool for the primary structural control over VMOPs,these weak forces allow for an advanced management on the spatial distribution of such manmade macromolecules as well as the associated physicochemical behaviors,representing an ideal model for simulating and interpreting the conformation-function relationship of proteins.
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    Vinyltrimethylsilane as a novel electrolyte additive for improving interfacial stability of Li-rich cathode working in high voltage

    Bing JiangHao LiBi LuoLehao Liu...
    534-538页
    查看更多>>摘要：Boosting the interfacial stability between electrolyte and Li-rich cathode material at high operating volt-age is vital important to enhance the cycling stability of Li-rich cathode materials for high-performance Li-ion batteries.In this work,vinyltrimethylsilane as a new type of organic silicon electrolyte additive is studied to address the interfacial instability of Li-rich cathode material at high operating voltage.The cells using vinyltrimethylsilane additive shows the high capacity retention of 73.9％after 300 cycles at 1 C,whereas the cells without this kind of additive only have the capacity retention of 58.9％.The im-provement of stability is mainly attributed to the additive helping to form a more stable surface film for Li-rich cathode material,thus avoiding direct contact between the electrolyte and the cathode material,slowing down the dissolution of metal ions and the decomposition of the electrolyte under high oper-ating voltage.Our findings in this work shed some light on the design of stable cycling performance of Li-rich cathode toward advanced Li-ion batteries.
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    Synergistic Co-doping effect of CNTs and PVP in Na4MnCr(PO4)3 cathode as a strategy for improving the electrochemical performance of SIBs

    Ruoyu ChenDenys S.ButenkoShilin LiXinyu Zhang...
    539-543页
    查看更多>>摘要：In order to solve the contradiction between the rapidly growing energy demand and the excessive ex-ploitation of fossil fuels,it is urgent to research and develops more environmentally friendly and efficient energy storage technologies.Therefore,the development of high-performance cathode materials to en-hance the energy density of SIB is currently one of the most important topics of scientific research.Ad-vanced high-voltage and low-cost cathode material for SIBs,a composite of carbon-coated Na4MnCr(PO4)3(NASICON-type),polyvinylpyrrolidone(PVP),and modified carbon nanotubes(CNTs)is prepared by sol-gel and freeze-drying method.Due to the high conductivity of CNTs,the conductivity of the compos-ite is significantly improved,and its initial capacity is increased to 114 mAh/g at 0.5 C and 96 mAh/g at 5 C(Mn2+/Mn4+conversion for voltage windows 1.4-4.3 V).Moreover,the multi-electrons transfer of Cr3+/Cr4+and Mn2+/Mn4+can provide a high capacity of 165 mAh/g at 0.1 C and 102 mAh/g at 5 C in the high voltage window of 1.4-4.6 V.Furthermore,PVP can effectively inhibit the Jahn-Teller effect caused by Mn ion,making the composite have more excellent high-rate performance and stabil-ity.In addition,GITT,EIS and CV curves were drawn to better reveal the excellent kinetic properties of Na4MnCr(PO4)3@C@PVP@CNT cathode,and the mechanism of its performance improvement is deeply studied and discussed.Accordingly,the co-doping of CNTs and PVP is a simple way to high conductivity and fast charging of cathode materials for SIBs.
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    Mitochondria-targeted Janus mesoporous nanoplatform for tumor photodynamic therapy

    Min DongRui TangJing LiJiajia Zhao...
    544-547页
    查看更多>>摘要：Photodynamic therapy(PDT)is an effective treatment method for tumors.But the specifically accumu-lated of photosensitizer was very difficult in the tumor site,which greatly limited the efficacy of PDT.Here,mitochondria-targeted Janus mesoporous nanoplatform(JPMO-Pt-CTPP-ZnPc)for PDT was prepared,the nanoplatform has uniform size(275 nm)and good dispersion and biocompatibility.The confocal laser scanning microscopy(CLSM)revealed the signal of ZnPc of JPMO-Pt-CTPP-ZnPc were higher than JPMO-Pt-ZnPc in tumor cells,and flow cytometry results showed the cell uptake efficiency of JPMO-Pt-CTPP-ZnPc was 2.5-fold higher than that of JPMO-Pt-ZnPc.This revealed the modification of CTPP significantly improves the targeting ability of the nanoplatform.In vitro anti-tumor experiment showed the JPMO-Pt-CTPP-ZnPc significantly inhibited the growth of tumor cells upon the irradiation of low-power laser,and the survival rate of cells incubated with 60 μg/mL JPMO-Pt-CTPP-ZnPc was only 3％.Simultaneously,com-pared with JPMO-Pt-ZnPc(not modified with mitochondria targeting molecules CTPP),the PDT efficacy of JPMO-Pt-CTPP-ZnPc was significantly better,as it has targeted mitochondria in cells.
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    Mitigated lattice distortion and oxygen loss of Li-rich layered cathode materials through anion/cation regulation by Ti4+-substitution

    Kaicheng ZhangYu TianXuanjin ChenShan Hu...
    548-552页
    查看更多>>摘要：Lithium-rich layered cathode material(LLM)can meet the requirement of power lithium-ion energy stor-age devices due to the great energy density.However,the de/intercalation of Li+will cause the irre-versible loss of lattice oxygen and trigger transition metal(TM)ions migrate to Li+vacancies,resulting in capacity decay.Here we brought Ti4+in substitution of TM ions in Li12Mn0.54Ni0.13Co0.13O2,which could stabilize structure and expand the layer spacing of LLM.Moreover,optimized Ti-substitution can regulate the anions and cations of LLM,enhance the interaction with lattice oxygen,increase Ni3+and Co3+,and improve Mn4+coordination,improving reversibility of oxygen redox activation,maintaining the stable framework and facilitating the Li+diffusion.Furthermore,we found 5％Ti-substitution sample delivered a high discharge capacity of 244.2 mAh/g at 50mA/g,an improved cycling stability to 87.3％after 100 cycles and enhanced rate performance.Thereby Ti-substitution gives a new pathway to achieve high re-versible cycle retention for LLMs.
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    Understanding AIE and ACQ phenomenon of organometallic iridium(Ⅲ)complexes by simple cationization engineering

    Weilin SongHuiting MaoYing GaoYaxuan Yao...
    553-557页
    查看更多>>摘要：Understanding the relationship between structure and properties is critical to the development of solid-state luminescence materials with desired characteristics and performance optimization.In this work,we elaborately designed and synthesized a pair of mononuclear iridium(Ⅲ)complexes with similar struc-tures but different degrees of cationization.[Ir2-f][2PF6]with two counterions is obtained by simple N-methylation of the ancillary ligand of[Ir1-f][PF6]which is a classic cationic iridium(Ⅲ)complex.Such a tiny modification results in tremendously different optical properties in dilute solutions and powders.[Ir1-f][PF6]exhibits weak light in solution but enhanced emission in solid-state as well as poly(methyl methacrylate)matrix,indicative of its aggregation-induced emission(AIE)activity.On the sharp con-trary,[Ir2-f][2PF6]is an aggregation-caused quenching(ACQ)emitter showing strong emission in the iso-lated state but nearly nonemissive in aggregation states.Benefiting from the appealing characteristics of mechanochromic luminescence and AIE behavior,[Ir1-f][PF6]has been successfully applied in reversible re-writable data recording and cell imaging.These results might provide deep insights into AIE and ACQ phenomenon of iridium(Ⅲ)complexes and facilitate the development of phosphorescent materials with promising properties.
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