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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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    Multiple conductive network for KTi2(PO4)3 anode based on MXene as a binder for high-performance potassium storage

    Tong SuYue WangQizhen ZhuMengyao Xu...
    539-544页
    查看更多>>摘要：KTi2(PO4)3 is a promising anode material for potassium storage,but suffers from low conductivity and difficult balance between high capacity and good structural stability.Herein,the Ti3C2Tx MXene is used as a multifunctional binder to fabricate the KTi2(PO4)3 electrode by the traditional homogenizing-coating method.The MXene nanosheets,together with the conductive agent super P nanoparticles,construct a multiple conductive network for fast electron/ion transfer and high electrochemical kinet-ics.Moreover,the network ensures the structural stability of the KTi2(PO4)3 electrode during the de-intercalation/intercalation of 4 K+ions,which is beneficial for simultaneously achieving high capacity and good cycle performance.Therefore,the MXene-bonded KTi2(PO4)3 electrode delivers a reversible capacity of 255.2 mAh/g at 50mA/g,outstanding rate capability with 132.3 mAh/g at 2 A/g,and ex-cellent cycle performance with 151.6 mAh/g at 1 A/g after 2000 cycles.This work not only suggests a high-performance anode material for potassium-ion batteries,but also demonstrates that the MXene is a promising binder material for constructing conductive electrodes in rechargeable batteries.
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    Dual polarization strategy to enhance CH4 uptake in covalent organic frameworks for coal-bed methane purification

    Junhua WangXin LianXichuan CaoQiao Zhao...
    545-548页
    查看更多>>摘要：The purification of low-grade coal-bed methane is extremely important,but challenging,due to the very similar physical properties of CH4 and N2.Herein,we proposed a dual polarization strategy by employing triazine and polyfluoride sites to construct polar pores in COF materials,achieving the efficient separa-tion of CH4 from N2.As expected,the dual polarized F-CTF-1 and F-CTF-2 exhibit higher CH4 adsorption capacity and CH4/N2 selectivity than CTF-1 and CTF-2,respectively.Especially,the CH4 uptake capacity and CH4/N2 selectivity of F-CTF-2 is 1.76 and 1.42 times than that of CTF-2.This work not only developed promising COF materials for CH4/N2 separation,but also provided important guidance for the separation of other adsorbates with similar properties.
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    Core-shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation

    Guo-Hong GaoRun-Ze ZhaoYa-Jun WangXiao Ma...
    549-553页
    查看更多>>摘要：Searching for efficient nonprecious metal-based catalysts toward oxygen evolution reaction(OER)are of significance for seawater electrolysis.Herein,a core-shell-structured hybrid of cobalt phosphide nanowires@NiFe layered double hydroxide nanosheets grown on conductive nickel foam(CoP@NiFe LDH/NF)is prepared by a feasible approach at low temperature.The charming structure can provide numerous phosphide/hydroxide heterogenous interfaces,expose abundant active sites,and boost elec-tron/mass transfer,synergistically enhancing catalytic OER activity.When employed as an electrocatalyst toward the OER,the resultant CoP@NiFe LDH/NF only requires a small overpotential of 287 mV to pro-vide 300mA/cm2 current density as well as long-time durability in 1.0mol/L KOH seawater.The regula-tion of electronic states and surface reconstruction synergistically contribute to highly efficient seawater oxidation.This work provides an opportunity to construct efficient and inexpensive electrocatalysts for hydrogen production.
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    A new class of crystalline X-ray induced photochromic materials assembled from anion-directed folding of a flexible cation

    Hong-Jin LiaoZhu ZhuoQing LiYoshihito Shiota...
    554-557页
    查看更多>>摘要：Electron-deficient viologens are widely used as ligands or structure-directing agents(SDAs)to synthesize crystalline X-ray induced photochromic materials.Here,a new rational strategy of anion-directed fold-ing a flexible cation(H2imb)2+((H2imb)2+=di-protonated 2,3-bis(imidazolin-2-yl)-2,3-dimethylbutane)has been developed.Electron-donating Cl-and(ZnCl4)2-are used to direct folding a flexible electron-deficient(H2imb)2+cation.Three complexes(H2imb)(NO3)2(1),(H2imb)Cl2·H2O(2),and(H2imb)ZnCl4(3)have been synthesized in which(H2imb)2+crystallize in an anti-conformation,88.8°-gauche,and 51.8°-gauche,respectively.In contrary to X-ray silent complex 1,X-ray induced photochromism has been achieved in both complex 2 and 3.An intermolecular charge-transfer mechanism has been elucidated and the anion directed folding of(H2imb)2+has been validated to be critical to yield colored long-lived charge-separated states.
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    Metal-metal bonds in Zintl clusters:Synthesis,structure and bonding in[Fe2Sn4Bi8]3-and[Cr2Sb12]3-

    Ya-Nan YangZi-Sheng LiSourav MondalLei Qiao...
    558-566页
    查看更多>>摘要：We report here the synthesis and characterization of two new members of the M2E12 family of endohe-dral Zintl clusters,[Fe2Sn4Bi8]3-and[Cr2Sb12]3-,both of which contain open-shell metal dimers encap-sulated inside a triple-decker cluster of main-group atoms.The 75-electron[Fe2Sn4Bi8]3-cluster has a D4h-symmetric structure,while[Cr2Sb12]3-,despite having the same 75-electron count,is strongly dis-torted to a geometry that resembles a CrSb8 crown capped by a CrSb4 unit.The structural differences between the two are driven by the increasing availability of 3d electron density in the earlier transi-tion metal,which leads,ultimately,to different electronic configurations in the two clusters.The trends precisely mirror those observed in the ME10 and ME12 families containing a single transition metal ion.
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    Structural evolution and zero-field SMM behaviour in ferromagnetically-coupled disk-type Co7 clusters bearing exclusively end-on azido bridges

    Yijia JiaoYuzhu LiYuting ZhouPeipei Cen...
    567-571页
    查看更多>>摘要：Concise chemistry leads to a family of heptanuclear CoⅡ-clusters,[Co7(N3)12(CH3CN)12][Y2(NO3)4(piv)4]·2CH3CN(DC1)(pivH=pivalic acid),[Co7(N3)12(CH3CN)10(NO3)0.4(Cl)1.6]·4CH3CN(DC2)and[Co7(N3)12(CH3CN)10(NO3)2]·4CH3CN(DC3),in which the metal ions are exclusively bridged by end-on azido ligands to stabilize a beautiful disk-like topology.The resulting clusters exhibit interesting structural transformations and thermodynamically-distinct steady states verified by theoretical calcula-tions.Magnetic studies reveal the first observation of zero-field SMM behaviour in disk-like heptanuclear CoⅡ complexes.
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