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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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    Bismuth-based halide double perovskite Cs2KBiCl6:Disorder and luminescence

    Pan LiuYanming SunAlberto J.Fernández-CarriónBowen Zhang...
    504-508页
    查看更多>>摘要：A new bismuth-based halide double perovskite Cs2KBiCl6 was isolated successfully through solid-state re-actions and investigated using X-ray and neutron diffraction.Rather than an ordered structure,the crystal structure consists of shifted Cs,K,Bi,and Cl sites from the ideal positions with fractional occupancy in compensation,leading to variable local coordination of Cs+ions,as revealed by 133Cs solid-state nuclear magnetic resonance spectroscopy.Cs2KBiCl6 displays volume hysteresis at 5-298K range upon heating and cooling.The Cs2KBiCl6 has a direct bandgap of 3.35(2)eV and red-shift luminescence of around 600 nm upon Mn doping compared with the Na analogue.The stabilization of disordered structure in Cs2KBiCl6 is related to two factors including the large-sized K+cation which prefers to coordinate with more than six Cl-,and the Bi3+with 6s2 lone pair which has a preference for a local asymmetric environ-ment.These findings could have general application and help to understand the structure and property of halide perovskites.
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    Hetero-phase zirconia encapsulated with Au nanoparticles for boosting electrocatalytic nitrogen reduction

    Xue XinQiming QuIslam E.KhalilYuting Huang...
    509-513页
    查看更多>>摘要：Electrocatalytic nitrogen reduction reaction(NRR)is considered as an attractive approach for ammonia synthesis under mild conditions.A bottleneck of NRR is the exploration of efficient catalysts for accel-erating reaction kinetics,among which heterogeneous structures possessing distinct atomic arrangement could modify electronic structure,and therefore altering their NRR activity.Here,we report a facile strat-egy for fabricating hetero-phase metal oxides derived from metal organic framework that are further integrated with Au nanoparticles as NRR catalysts.The phase composition of zirconia can be easily ad-justed by simply changing the reaction temperature,where the monoclinic and tetragonal phases with the roughly close proportions have a distinct interface,leading to a strong interaction between Au and ZrO2.The enhanced interaction renders Au to be more electropositive and facilitates stronger binding to N2.As a result,a remarkable ammonia yield of 22.32 μg h-1 mgcat.-1 and a Faradaic efficiency of 31.92％can be achieved at low overpotential.This work is expected to pave the way for the design of hetero-geneous structures and the exploration of hetero-phase nanostructures in boosting the electrocatalytic NRR.
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    Enhanced electrochemical performance of nanoscale single crystal NMC811 modification by coating LiNbO3

    Fengyu ZhangYali LiangZhangran YeLei Deng...
    514-518页
    查看更多>>摘要：Single crystallization is an important strategy to resolve intergranular cracks and unnecessary side reac-tions with electrolytes in layered transition metal oxide cathodes LiNi0.8Mn0.1Co0.1O2(NMC811).Due to the limitations of high-temperature sintering and multi-step calcination,single crystal NMC811 generally shows irregular particles with a size of 2-3 μm.However,the prolonged Li-ion diffusion pathway and the stress generated by the uneven de-/intercalation sluggish Li-ion diffusion kinetics,what is more,cause structural damage such as intragranular cracks.A slow Li extraction rate or particle size reduction will ameliorate the structural damage and improve the cycling stability.As the most promising cathodes for next-generation power batteries,NMC811 required fast charge performance and cycle stability.Particle size reduction appears to be the displacement option.Nanonization is an effective strategy to mitigate intragranular cracks of single crystal NMC811.However,the serious aggregation and increased specific surface area become new challenges.In this article,we synthesized monodisperse nanoscale single crys-tal NMC811 by molten salt method and modified the surface by LiNbO3 coating.The electrochemical performance shows that nanoscale single crystal NMC811 has faster kinetic and higher capacity reten-tion,so the strategy of combining nanonization and surface coating is an alternative way to prepare high specific capacity and cycle stable single crystal NMC811.
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    Sensitizing photoactive metal-organic frameworks via chromophore for significantly boosting photosynthesis

    Lihua MaSong GuoZhi-Ming ZhangJin-Zhong Wang...
    519-522页
    查看更多>>摘要：Photosensitization related to energy/electron transfer process is of great importance to natural photosyn-thesis.Herein,we proposed a promising strategy to improve the sensitizing ability of the typical photoac-tive MOFs(UiO-Ir)by engineering its metal coordination center with NBI(1,8-naphthalenebenzimidizole)chromophore.The resulting MOFs(UiO-Ir-NBI)exhibited a strong sensitizing ability for significantly boosting photosynthesis.Impressively,the catalytic yield of 2-chloroethyl ethyl sulfoxide with UiO-Ir-NBI can reach 99％,over 6 times higher than that with UiO-Ir(16.4％).Moreover,UiO-Ir-NBI exhibited an excellent catalytic stability and a broad substrate tolerance,highlighting its great application prospect.Systematic investigations revealed that the strong visible light absorption,long excited state lifetime and efficient electron-hole separation of UiO-Ir-NBI greatly contributed to harvesting visible light and facili-tating interface electron/energy transfer for efficient solar energy utilization.This work provides a new horizon to boost photosythesis of MOFs by engineering their metal sensitizing centers at a molecular level.
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    Cu2Se@C thin film with three-dimensional braided structure as a cathode material for enhanced Cu2+storage

    Wenhao ChenMuxuan WuHan ChenLue Mo...
    523-528页
    查看更多>>摘要：In the face of multiple challenges brought by the changes of global climate and environment,developing clean energy and updating green energy storage equipment are important ways to achieve carbon peak and carbon neutrality.Aqueous batteries have become a research hotspot due to their advantages of using the multivalent charge carrier,high ionic conductivity,environmental friendliness and cost effectiveness.In this work,the Cu2Se@C(Cu2Se coated on carbon clothes)thin film with a three-dimensional braided structure is fabricated by a simple electrochemical deposition method for Cu2+storage for the first time.Compared with the commercial Cu2Se powder,the well-designed Cu2Se@C film shows enhanced specific capacity(640 mAh/g at 0.5 A/g)and rate performance(542 mAh/g at 5 A/g)as well as superior cy-cling stability(82.7％capacity retention after 1000 cycles at 1 A/g).The Cu2+storage mechanism of the Cu2Se@C electrode is based on a reversible phase transition process of Cu2Se↔Cu2-xSe↔CuSe ↔ CuSe2.In kinetic characteristic analysis,the Cu2Se@C electrode demonstrates faster Cu2+diffusion in discharge process than charge process resulting from the phase transition and the variation of interplanar spacing.This work highlights a facile one-piece design strategy and opens a new gateway for the exploration of advanced aqueous energy storage systems.
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    Rapid detection of nanoplastic particles by a luminescent Tb-based coordination polymer

    Tiankai SunHui MinZongsu HanLiang Wang...
    529-533页
    查看更多>>摘要：Nanoplastics(NPs)in aqueous environment have become a category of emerging pollutants on account of their potential risks to both human health and environment.The detection of NPs is a great challenge due to the lack of sensitive and selective sensing materials with fast response time and wide sensing range of particle sizes.Herein,a Tb-based coordination polymer has been synthesized for luminescent detection of nanopolystyrene with different particle sizes in aqueous solutions,showing a low limit of detection,fast response time within 10 s and high selectivity in the presence of other plastics.The"turn-on"sensing mechanism is studied in detail.This work provides a facile method for the fast detection of NPs.
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