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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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    A tetraaldehyde-derived porous organic cage and covalent organic frameworks:Syntheses,structures,and iodine vapor capture

    Xinyi CaoYucheng JinHailong WangXu Ding...
    426-431页
    查看更多>>摘要：Dynamic covalent imine reactions between 2',3'-dimethoxy-[1,1':4',1"-terphenyl]-3,3",5,5"-tetracarbal-dehyde(DMTT)and cyclohexanediamine,p-phenylenediamine,and benzidine,respectively,generate a porous organic cage(DMPOC)and two covalent organic frameworks(COFs),USTB-29,and USTB-30.DM-POC shows a[3+6]topological cage-like structure according to single crystal X-ray diffraction result.In contrast,both microcrystalline USTB-29 and USTB-30 exhibit two-dimensional monoporous structures in an eclipsed AA stacking style based on powder X-ray diffraction and theoretical simulations.In addition,DMPOC is capable of efficiently absorbing the iodine vapor with an outstanding uptake of 5.10 g/g,much higher than that of USTB-29(3.07 g/g)and USTB-30(3.16 g/g).Cage to COFs transformations have been re-alized from DMPOC to USTB-29 and USTB-30 via the imine bond exchange with slightly increased iodine vapor uptake.Mechanism investigations uncover that both nitrogen and oxygen atoms of POC and COFs contribute to iodine vapor capture due to the formation of charge transfer matter,and loose interaction introducing adaptive expanding voids of DMPOC is suggested to capture more iodine vapor than that of COFs with strong π-π interactions.
      原文链接:
    • 万方数据
    • 维普

    Polyethylene imine functionalized porous carbon framework for selective nitrogen dioxide sensing with smartphone communication

    Xiaxia XingXiaoyu ChenZhenxu LiXinhua Zhao...
    432-436页
    查看更多>>摘要：Highly selective and remotely communicable nitrogen dioxide(NO2)sensing may contribute to future In-ternet of Things in environmental monitoring.However,room-temperature NO2 sensing materials such as carbon materials is still less than satisfactory due to their insensitive interaction with target gas.Here,polyethylene imine functionalized three-dimensional(3D)carbon framework(PEI/C framework)has been developed for enhanced selective NO2 sensing,via combined template synthesis and subsequent dop-ing.Typically,the 3D PEI/C framework is observed porous shape with irregular coating.Beneficially,the response of C framework to NO2 increases while those of interfering gases decrease after being function-alized with PEI.Remarkably,the sensor prototypes show a 100 ppb-concentration detection limit at room temperature.Theoretically,such excellent NO2 sensing is attributed to the large specific surface ratio of porous 3D PEI/C framework,in which PEI serves as an active layer for target NO2,while a passivated one for interfering gases.Practically,such PEI/C framework sensor prototype is simulated for NO2 sensing de-vice and communicated with a smartphone,showing great potential in future intelligent environmental monitoring.
      原文链接:
    • 万方数据
    • 维普

    A stable radiochromic semiconductive viologen-based metal-organic framework for dual-mode direct X-ray detection

    Xuying YuJiarong MiYulan HanCai Sun...
    437-441页
    查看更多>>摘要：Direct X-ray detectors,which directly convert X-rays into electrical signals through semiconductors,have higher space solution than scintillator-mediated indirect X-ray ones and are high desirable for early cancer detection and other applications,but the mainstream commercial α-Se detector is still largely limited by high production costs,large leakage current and low stability.This article reports an eas-ily prepared,stable radiochromic semiconductive metal-organic framework(MOF),(MV)[Cd3(tdc)4]-2H2O(RCS-1,H2tdc=2,5-thiophenedicarboxylic acid;MV2+=methyl viologen cation)with direct X-ray de-tecting ability.With a large bulk resistivity of 8.40 × 109 Ω cm,this material ensures minimal dark current and low noise for X-ray detection.Additionally,it exhibits higher sensitivity to W Kα X-rays(98.58 μC Gy-1 cm-2)than α-Se(～20 μC Gy-1 cm-2).Meanwhile,unlike most reported direct X-ray de-tecting semiconductors,compound RCS-1 shows remarkable color change upon X-ray irradiation owing to the presence of photochromism-active viologen cations.This feature offers an appealing visual detecting ability to direct X-ray detectors that provide only the electrical signals.
      原文链接:
    • 万方数据
    • 维普

    Two UV organic-inorganic hybrid antimony-based materials with superior optical performance derived from cation-anion synergetic interactions

    Pu ZhangXiang MaoXuehua DongLing Huang...
    442-446页
    查看更多>>摘要：Finding suitable strategies to effectively enhance the optical properties of materials are the goal be-ing pursued by researchers.Herein,cation-anion synergetic interactions strategy was proposed to de-velop two novel organic-inorganic hybrid antimony-based optical materials,(C3H5N2)SbF2SO4(Ⅰ)and(C5H6N)SbF2SO4(Ⅱ),which were obtained by introducing Sb3+cation containing stereochemically active lone-pair(SCALP)and organic π-conjugated cations into sulphate system.The synergistic interactions of the organic π-conjugated cations,the inorganic[SbO2F2]3-seesaw anions and the[SO4]2-distorted tetrahedra anions make their ultraviolet(UV)absorption edges approach 297 and 283 nm,respectively,and raise their birefringence up to 0.193@546 nm and 0.179@546 nm,respectively.Interestingly,although the two compounds have the same stoichiometric ratio and similar one-dimensional(1D)chain struc-ture,they show opposite macroscopic symmetry,where the NCS compound(Ⅱ)exhibits a large second-harmonic generation(SHG)response(1.6 times that of KH2PO4)).The two reported compounds are found to be promising UV optical materials in the experimental tests.
      原文链接:
    • 万方数据
    • 维普

    F127 assisted fabrication of Ge/rGO/CNTs nanocomposites with three-dimensional network structure for efficient lithium storage

    Hui GuMingyue GaoKuan ShenTianli Zhang...
    447-451页
    查看更多>>摘要：To solve the volume expansion and poor electrical conductivity of germanium-based anode materi-als,Ge/rGO/CNTs nanocomposites with three-dimensional network structure are fabricated through the dispersion of polyethylene-polypropylene glycol(F127)and reduction of hydrogen.An interesting phe-nomenon is discovered that F127 can break GeO2 polycrystalline microparticles into 100 nm nanopar-ticles by only physical interaction,which promotes the uniform dispersion of GeO2 in a carbon net-work structure composed of graphene(rGO)and carbon nanotubes(CNTs).As evaluated as anode mate-rial of Lithium-ion batteries,Ge/rGO/CNTs nanocomposites exhibit excellent lithium storage performance.The initial specific capacity is high to 1549.7 mAh/g at 0.2 A/g,and the reversible capacity still retains 972.4 mAh/g after 100 cycles.The improved lithium storage performance is attributed to that Ge nanopar-ticles can effectively slow down the volume expansion during charge and discharge processes,and three-dimensional carbon networks can improve electrical conductivity and accelerate lithium-ion transfer of anode materials.
      原文链接:
    • 万方数据

    Converting LiNO3 additive to single nitrogenous component Li2N2O2 SEI layer on Li metal anode in carbonate-based electrolyte

    Kunyao PengXianbin WangXingbin Yan
    452-457页
    查看更多>>摘要：With the increasing demand for high energy density energy storage device,Li metal has received inten-sive attention for its ultrahigh capacity and the lowest redox potential.LiNO3 is widely used as electrolyte additive for ether electrolyte,which can improve the cycle performance of Li metal anode.Compared to ethers,carbonates are more suitable for Li metal batteries with high voltage cathode because they have a wider electrochemical window.However,LiNO3 performs poor solubility in carbonate electrolyte,re-stricting its application in high voltage Li battery.Herein,we presented a facile method to introduce abundant LiNO3 additive to carbonate electrolyte system by introducing LiNO3-PAN es as the interlayer of the cell.LiNO3-PAN es is in sufficient contact with the electrolyte so that it can continuously releases LiNO3 to assist the formation of Li2N2O2-rich single nitrogenous component SEI layer on Li surface.With the help of LiNO3-PAN es,Li metal anode shows excellent cycle stability even at a high current density of 4mA/cm2,so that the cycle performance of the full cells was significantly improved,whether in the anode-free Cu||LFP cell or the Li||NCM622 cell.
      原文链接:
    • 万方数据

    A hydrogen-bonded organic framework containing fluorescent carbazole and responsive pyridyl units for sensing organic acids

    Liangji ChenZhen YuanFudong FengXin Zhou...
    458-463页
    查看更多>>摘要：Hydrogen-bonded organic frameworks(HOFs)are a promising candidate for optical sensing,but the lack of effective design strategies poses significant challenges to the construction of HOFs for organic acid sensing.In this work,the first HOF for organic acid sensing is reported by constructing a multiple-pyridine carbazole-based dense HOF,namely HOF-FJU-206,from a tripyridine-carbazole molecular 3,6-bis(pyridin-4-yl)-9-(4-(pyridin-4-yl)phenyl)-9H-carbazole(CPPY)with carbazole center for luminescence,pyridyl sites for its responsive of hydrogen proton,and narrow channels in the dense framework for the diffusion of hydrogen protons.HOF-FJU-206 exhibits differential responsively fluorescence sensing and recovery properties to formic,acetic,and propionic acids with different molecular sizes and pKa value(acid dissociation constant).The dissociation degree of various acids can be determined by analyzing the slope of changes in both peak wavelength and intensity of in-situ fluorescence,which easily enables the dual-corrective recognition of different acids.The varying degree of protonation at pyridine sites is proved to be the reason for differential sensing of various acids,as demonstrated by 1H NMR spectra,X-ray photoelectron spectroscopy(XPS)characterization,and modeling studies.
      原文链接:
    • 万方数据
    • 维普

    Visual identification of silver ornament by the structural color based on Mie scattering of ZnO spheres

    Jie RenHao ZongYaqun HanTianyi Liu...
    464-468页
    查看更多>>摘要：Structural colors originated from Mie scattering of dielectric spheres can be regulated by the coupling ef-fect between them and substrates.Here a rapid visual identification method of silver ornaments was pro-posed by the coupling effect of ZnO spheres with them.Both simulation and experimental results proved that,by coupling with different metal substrates,the Mie resonance scattering peaks of ZnO spheres with dimeter of 700 nm showed different degrees of redshift,which lead to different structural color appeared when ZnO spheres deposited on different metal surfaces with a similar appearance.A red structural color was displayed on the surface of the real silver ornament and a yellow-green structural color was shown on the surface of the cupronickel ornament.This method is quite simple and low-cost because it only needs to spray the dispersion of ZnO spheres on the ornament surface.Due to the mild chemical prop-erties of the ZnO,covering and erasing ZnO spheres on the surface of silver would not corrode the silver ornament.Finally,an atomizer method was used for portable and daily testing.This work opens new perspectives on the visual identification of silver.
      原文链接:
    • 万方数据
    • 维普

    Regulating local chemical environment in O3-type layered sodium oxides by dual-site Mg2+/B3+substitution achieves durable and high-rate cathode

    Guangchang YangShenglong YangJinlian YuYishun Xie...
    469-474页
    查看更多>>摘要：The O3-Na0.85Ni0.2Fe0.4Mn0.4O2 layered oxide cathode material possesses the advantages of high spe-cific capacity,low cost,and simple synthesis.However,sluggish kinetics and complicated phase tran-sition caused by the large size difference between Na+and tetrahedral gaps lead to poor rate and cy-cling performance.Therefore,a scalable and feasible strategy was proposed to modulate local chem-ical environment by introducing Mg2+and B3+into O3-Na0.85Ni0.2Fe0.4Mn0.4O2,which can distinctly improve kinetic transport rate as well as electrochemical performance.The capacity retention of O3-(Na0.82Mg0.04)(Ni0.2Fe0.4Mn0.4)B0.02O2(NFMB)increases from 43.3％and 12.4％to 89.5％and 89.0％at 1 C and 3 C after 200 cycles,respectively.Moreover,the electrode still delivers high rate capacity of 93.9 mAh/g when current density increases to 10 C.Mg2+ions riveted on Na layer act as a"pillar"to stabi-lize crystal structure and inhibit structural change during the desodiumization process.B3+ions entering tetrahedral interstice of the TM layer strengthen the TM-O bond,lower Na+diffusion energy barrier and inhibits the slip of TM layer.Furthermore,the assembled full batteries with the modified cathode ma-terial deliver a high energy density of 278.2 Wh/kg with commercial hard carbon as anode.This work provides a strategy for the modification of high-performance SIB layered oxide materials to develop the next-generation cost-effective energy storage grid systems.
      原文链接:
    • 万方数据

    Development of Mg-Al LDH and LDO as novel protective materials for deacidification of paper-based relics

    Sinong WangShanshan JinXue YangYanyan Huang...
    475-480页
    查看更多>>摘要：Acidification of paper-based relics is a common problem,leading to their degradation and eventual loss.Paper deacidification is highly dependent on a limited variety of alkaline materials,and the develop-ment of new materials that are safe,efficient and easy-to-prepare is highly demanded to ensure a high level of safety and effective protection of paper-based relic.This study proposes the introduction of lay-ered double hydroxide(LDH)and its calcined product,mixed metal oxide(layered double oxide(LDO)),as innovative protective materials for the deacidification of paper with varying levels of acidity.The re-sults demonstrate that treatment with Mg-Al LDH/LDO can effectively modify the pH of acidic paper(e.g.,pH～4.0-6.4)to a neutral or weakly basic state,maintaining this desirable pH range even under long-term accelerated aging condition.Remarkably,LDH proves to be well-suited for the protection of slightly acidified paper(e.g.,pH＞5.5),while LDO serves as an especially option for the deacidification of severely acidified paper(e.g.,pH ≤ 5.5).During aqueous deacidification,due to the memory effect of the LDH-based materials,LDO is converted to rehydrated LDH,which creates a mild and appropriate al-kaline retention in the paper,avoiding damage caused by strong alkalinity such as cellulose degradation and pigment fading during subsequent long-term natural preservation of the paper.Furthermore,Mg-Al LDH/LDO materials also exhibit flame-retardant and bacteriostatic properties.This opens up opportunities for the safe,efficient and multifunctional protection of acidified paper-based relics.
      原文链接:
    • 万方数据
    • 维普