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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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    Modulating the p-band center of carbon nanofibers derived from Co spin state as anode for high-power sodium storage

    Zhijia ZhangYuwen ZhaoYanhao WeiMengmeng Zhang...
    537-541页
    查看更多>>摘要：Carbon nanofibers(CNFs)have received extensive and in-depth studied as anodes for sodium-ion bat-teries(SIBs),and yet their initial Coulombic efficiency and rate capability remain enormous challenge at practical level.Herein,CNFs anchored with cobalt nanocluster(CNFs-Co)were prepared using chemical vapor deposition and thermal reduction methods.The as-prepared CNFs-Co shows a high initial Coulom-bic efficiency of 91％and a high specific discharge capacity of 246 mAh/g at 0.1 A/g after 200 cycles as anode for SIBs.Meanwhile,the CNFs-Co anode still delivers a high cycling stability with 108 mAh/g after 1000 cycles at 10 A/g.These excellent electrochemical properties could be attributed to the involved spin state Co,which endows CNFs with large interplanar spacing(0.39 nm)and abundant vacancy defects.Im-portantly,the spin state Co downshifts the p-band center of carbon and strengthens the Na+adsorption energy from-2.33 eV to-2.64 eV based on density functional theory calculation.This novel strategy of modulating the carbon electronic structure by the spin state of magnetic metals provides a reference for the development of high-performance carbon-based anode materials.
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    Alkyl-thiophene-alkyl linkers to construct double-cable conjugated polymers for single-component organic solar cells

    Wenbin LaiSafakath KaruthedathChengyi XiaoLei Meng...
    542-546页
    查看更多>>摘要：In this work,semirigid linkers of the alkyl-thiophene-alkyl structure are developed to construct double-cable polymers.Three alkyl units,propyl(C3H6),hexyl(C6H12),and dodecyl(C12H24),are applied as semi-rigid linkers,yielding three double-cable polymers:PBC6-T,PBC12-T,and PBC24-T,respectively.PBC12-T which uses C6H12-thiophene-C6H12 linkers is found to exhibit the best device efficiency of 5.56％,while PBC6-T and PBC24-T with shorter or longer linkers yield device efficiencies of only 2.65％and 1.09％in single-component organic solar cells(SCOSCs).Further studies reveal that PBC12-T exhibits higher crys-tallinity and improved charge transport,resulting in better efficiencies.Our work provides an approach to construct double-cable conjugated polymers with long alkyl linkers,and it shows the importance of the linker length for the photovoltaic performance of SCOSCs.
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    Cost-effective natural graphite reengineering technology for lithium ion batteries

    Pei LiuHongbin WangTao HuangLiewu Li...
    547-551页
    查看更多>>摘要：Graphite tailings produced by natural graphite is usually regarded as garbage to be buried underground,which would result in a certain waste of resources.Here,in order to explore the utilization of natural graphite tailings(NGT),a liquid-polyacrylonitrile(LPAN)is used to modify the NGT fragments and ag-gregate them together to form secondary graphite particles with low surface area and high tap density.Moreover,the modified NGT show much better electrochemical performances than those of original one.When tested in full cells coupled with NMC532 cathode,the material achieves a high rate capability and cycle stability at the cutoff voltage of 4.25 V as well as 4.45 V,which maintains 84.32％capacity retention after 500 cycles at 1 C rate(4.25 V),higher than that of the pristine one(73.65％).The enhanced perfor-mances can be attributed to the use of LPAN to create a unique carbon layer upon graphite tailings to reconstruct surface and repair defects,and also to granulate an isotropic structure of secondary graphite particles,which can help to weaken the anisotropy of Li+diffusion pathway and form a uniform,com-plete and stable solid-electrolyte-interface(SEI)on the surface of primary NGT fragments to promote a fast Li+diffusion and suppress lithium metal dendrites upon charge and discharge.
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    Graphdiyne scaffold anchored highly dispersed ruthenium nanoparticles as an efficient cathode catalyst for rechargeable Li-CO2 battery

    Yiru MaHuiqi QuWenna WangZiyang Guo...
    552-557页
    查看更多>>摘要：Lithium(Li)-CO2 battery is rising as an attractive energy-storage system with the competence of CO2 conversion/fixation.However,its practical development is seriously hindered by the high overpotential.Herein,a rational design on a highly catalytic Li-CO2 battery electrode built by graphdiyne powder as a multi-functional laminar scaffold with anchored highly dispersed Ru nanoparticles is explored.The strong interaction between the abundant acetylenic bond sites of graphdiyne scaffold and Ru nanoparti-cles can effectively promote the electrochemical progress and reduce the voltage polarization.The unique channels architecture of the cathodic catalyst with enough space not only accelerates CO2 diffusion and electrons/Li+transport,but also allows a large amount of accommodation for discharged product(Li2CO3)to assure an advanced capacity.The corresponding Li-CO2 battery displays an advanced discharged ca-pacity of 15,030 mAh/g at 500 mA/g,great capacity retention of 8873 mAh/g at 2 A/g,high coulombic efficiency of 97.6％at 500 mA/g and superior life span for 120 cycles with voltage gap of 1.67 V un-der a restricted capacity of 1000 mAh/g at 500 mA/g.Ex/in-situ studies prove that synergy between Ru nanoparticles and acetylene bonds of GDY can boost the round-trip CO2RR and CO2ER kinetics.
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    Mitigating the dissolution of V2O5 in aqueous ZnSO4 electrolyte through Ti-doping for zinc storage

    Zihe WeiXuehua WangTing ZhuPing Hu...
    558-562页
    查看更多>>摘要：Aqueous zinc-ion batteries(AZIBs)have become a hotspot for electrochemical energy storage owing to the high safety,low cost,environmental friendliness,and favorable rate performance.However,the seri-ous dissolution of cathode materials in aqueous electrolytes would lead to poor cyclability,which should be addressed before commercialization.Herein,we designed a Ti-doped V2O5 with yolk-shell microspher-ical structure for AZIBs.The Ti doping stabilizes the crystal structure and relieves the dissolution of V2O5 in aqueous ZnSO4 electrolyte.The optimized sample,Ti0.2V18O4.9,delivers a high capacity(355 mAh/g at 0.05 A/g)as well as good capacity retention(89％after 2500 cycles at 1.0 A/g).This work provides an ef-fective strategy to mitigate the dissolution of cathode material in aqueous ZnSO4 electrolyte for cyclability enhancement.
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    Rocking-chair ammonium ion battery with high rate and long-cycle life

    Tongkai WangXiaojuan LiShunshun ZhaoHongxia Bu...
    563-567页
    查看更多>>摘要：Aqueous rechargeable ammonium-ion batteries(AIBs)have drew considerable attention because of their capacity for high rates,low cost,and high safety.However,developing desired electrodes requiring stable structure in the aqueous fast ammoniation/de-ammoniation becomes urgent.Herein,an ammonium ion full battery using Cu3[Fe(CN)6]2(CuHCF)acting to be a cathode and barium vanadate(BVO)acting to be an anode is described.Its excellent electrochemical behavior of Prussian blue analogs and the perfectly matched lattice structure of NH4+is expected.And the open structure of vanadium compounds satisfies the fast ammoniation/de-ammoniation of NH4+is also achieved.As a result of these synergistic effects,the BVO//CuHCF full cell retains 80.5 percent of its capacity following 1000 cycling.These achievements provide new ideas for developing low-cost and long-life AIBs.
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