首页期刊导航|中国化学快报(英文版)
期刊信息/Journal information
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。
正式出版
收录年代

    Hybridization chain reaction-based DNA nanomaterials for biosensing,bioimaging and therapeutics

    Zhaoyue LvMengxue HuangPeiran LiMengdi Xu...
    223-231页
    查看更多>>摘要:DNA nanomaterials hold great promise in biomedical fields due to its excellent sequence programma-bility,molecular recognition ability and biocompatibility.Hybridization chain reaction(HCR)is a sim-ple and efficient isothermal enzyme-free amplification strategy of DNA,generating nicked double helices with repeated units.Through the design of HCR hairpins,multiple nanomaterials with desired functions are assembled by DNA,exhibiting great potential in biomedical applications.Herein,the recent progress of HCR-based DNA nanomaterials for biosensing,bioimaging and therapeutics are summarized.Repre-sentative works are exemplified to demonstrate how HCR-based DNA nanomaterials are designed and constructed.The challenges and prospects of the development of HCR-based DNA nanomaterials are dis-cussed.We envision that rationally designing HCR-based DNA nanomaterials will facilitate the develop-ment of biomedical applications.

    Insight into the development of electrolytes for aqueous zinc metal batteries from alkaline to neutral

    An DuanSha LuoWei Sun
    232-241页
    查看更多>>摘要:Aqueous zinc metal batteries are considered as promising candidates for next-generation electrochemi-cal energy storage devices,especially for large-scale energy storage,due to the advantages of high-safety,high energy density and low cost.As the bridge connecting cathode and anode,electrolyte provides a re-alistic operating environment.In alkaline and neutral aqueous zinc metal batteries,issues associated with electrolyte and anode are still intractable.In this review,we reveal the development and evolution of electrolytes for aqueous zinc metal batteries from alkaline to neutral via the description of fundamentals and challenges in terms of comparison and connection.We also elaborate the strategies in electrolytes regulation and highlight the basic roles and progresses in additives engineering.

    Theoretical and experimental design in the study of sulfide-based solid-state battery and interfaces

    Hongjie XuYujie SuChenggong ZhengYuchen Wang...
    242-251页
    查看更多>>摘要:In recent years,due to the increasing demand for portable electronic devices,rechargeable solid-state battery technology has developed rapidly.Lithium-ion batteries are the systems of choice,offering high energy density,flexible and lightweight design,and longer lifespan than comparable battery technologies.Therefore,a better understanding of the relationship between electrochemical mechanism and structural properties from theory and experiment will enable us to accelerate the development of high-performance and security batteries.This review discusses the interplay between theoretical calculation and experi-ment in the study of lithium ion battery materials.We introduce the application of theoretical calculation method in solid-state batteries through the combination of theory and experiment.We present the con-cept and assembly technology of solid-state batteries are reviewed.The basic parameters of solid-state electrolytes,especially sulfide-based solid-state electrolytes and their interface mechanisms with high-voltage cathode materials,are analyzed by theoretical methods.We present an overview on the scientific challenges,fundamental mechanisms,and design strategies for solid-state batteries,especially focusing on the issues of stability on solid-state electrolytes and the associated interfaces with both cathode and electrolyte.Owing to the theoretical models,we can not only reveal the unprecedented mechanism from the atomic scale,but also analyze the interface problems in the battery thoroughly,thus effectively de-signing more promising electrolyte and interface coating materials.It blazed a new trial for engineering an interphase with improved interfacial compatibility for a long-term cyclability.

    High-density triple-phase contact points for enhanced photocatalytic CO2 reduction to methanol

    Hanwen JianKaiming DengTongyu WangChengxi Huang...
    252-256页
    查看更多>>摘要:The efficiency of photocatalytic CO2 reduction reaction(PCRR)is restricted by the low solubility and mo-bility of CO2 in water,poor CO2 adsorption capacity of catalyst,and competition with hydrogen evolution reaction(HER).Recently,hydrophobic modification of the catalyst surface has been proposed as a po-tential solution to induce the formation of triple-phase contact points(TPCPs)of CO2(gas phase),H2O(liquid phase),and catalysts(solid phase)near the surface of the catalyst,enabling direct delivery of highly concentrated CO2 molecules to the active reaction sites,resulting in higher CO2 and lower H+sur-face concentrations.The TPCPs thus act as the ideal reaction points with enhanced PCRR and suppressed HER.However,the initial synthesis of triple-phase photocatalysts tends to possess a lower bulk density of TPCPs due to the simple structure leading to limited active points and CO2 adsorption sites.Here,based on constructing a hydrophobic hierarchical porous TiO2(o-HPT)with interconnected macropores and mesopores structure,we have significantly increased the density of TPCPs in a unit volume of the pho-tocatalyst.Compared with hydrophobic macroporous TiO2(o-MacPT)or mesoporous TiO2(o-MesPT),the o-HPT with increased TPCP density leads to enhanced photoactivity,enabling a high methanol production rate with 1111.5 μmol g-1 h-1 from PCRR.These results emphasize the significance of high-density TPCPs design and propose a potential path for developing efficient PCRR systems.

    Passive daytime radiative cooling coatings with renewable self-cleaning functions

    Qian WuYubo CuiGuifeng XiaJinlong Yang...
    257-262页
    查看更多>>摘要:Passive daytime radiative cooling(PDRC)technology is emerging as one of the most promising solutions to the global problem of spacing cooling,but its practical application is limited due to reduced cooling effectiveness caused by daily wear and tear,as well as dirt contamination.To tackle this problem,we report a novel strategy by introducing a renewable armor structure for prolonging the anti-fouling and cooling effectiveness properties of the PDRC coatings.The armor structure is designed by decorating flu-orinated hollow glass microspheres(HGM)inside rigid resin composite matrices.The HGM serve triple purposes,including providing isolated cavities for enhanced solar reflectance,reinforcing the matrices to form robust armored structures,and increasing thermal emittance.When the coatings are worn,the HGM on the surface expose their concave cavities with numerous hydrophobic fragments,generating a highly rough surface that guarantee the superhydrophobic function.The coatings show a high sunlight reflectance(0.93)and thermal emittance(0.94)in the long-wave infrared window,leading to a cooling of 5 ℃ below ambient temperature under high solar flux(~900 W/m2).When anti-fouling functions are reduced,they can be regenerated more than 100 cycles without compromising the PDRC function by sim-ple wearing treatment.Furthermore,these coatings can be easily prepared using a one-pot spray method with low-cost materials,exhibit strong adhesion to a variety of substrates,and demonstrate exceptional environmental stability.Therefore,we anticipate their immediate application opportunities for spacing cooling.

    Oxide-supported metal catalysts for anaerobic NAD+regeneration with concurrent hydrogen production

    Jianwei LiJoseph W.H.BurnettClaudia Martinez MaciasRussell F.Howe...
    263-267页
    查看更多>>摘要:We report SiO2-supported monometallic Pt,Pd,Au,Ni,Cu and Co catalysts for proton-driven NAD+regen-eration,co-producing H2.All metals are fully selective to NAD+where the order of turnover frequencies(Pt>Pd>Cu>Au,Ni and Co)coincides with those otherwise observed in electrochemical hydrogen evolution reactions.This has revealed that NADH is capable of converting the metal sites into a"cathode"without an external potential and the NADH to NAD+reaction involves transferring electron and hy-drogen atom separately.Electron-deficient Ptδ+(on CeO2)enhances TOF and the heterogeneous Pt/CeO2 catalyst is recyclable without losing any activity/selectivity.

    Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors

    Yingshuang ZhengHuchao LiTing JiangFei Jiao...
    268-271页
    查看更多>>摘要:The compatibility of the gate dielectrics with semiconductors is vital for constructing efficient conduct-ing channel for high charge transport.However,it is still a highly challenging mission to clearly clarify the relationship between the dielectric layers and the chemical structure of semiconductors,especially vacuum-deposited small molecules.Here,interfacial molecular screening of polyimide(Kapton)dielectric in organic field-effect transistors(OFETs)is comprehensively studied.It is found that the semiconduct-ing small molecules with alkyl side chains prefer to form a high-quality charge transport layer on poly-imide(PI)dielectrics compared with the molecules without alkyl side chains.On this basis,the fabricated transistors could reach the mobility of 1.2 cm2 V-1 s-1 the molecule with alkyl side chains on bare PI dielectric.What is more,the compatible semiconductor and dielectric would further produce a low acti-vation energy(EA)of 3.01 meV towards efficient charge transport even at low temperature(e.g.,100 K,0.9 cm2 V-1 s-1).Our research provides a guiding scheme for the construction of high-performance thin-film field-effect transistors based on PI dielectric layer at room and low temperatures.

    Circularly polarized luminescence switch based on a photochromic europium(Ⅲ)helicate derived coordination polymer

    Mei LiYanyan ZhouJingya LiWenru Huang...
    272-277页
    查看更多>>摘要:Chiroptical switches based on circularly polarized luminescence(CPL)have shown the promising appli-cations in advanced information technologies.Herein,a pair of lanthanide coordination polymer enan-tiomers[Eu2(LR)3(BTFPO)2]n and[Eu2(Ls)3(BTFPO)2]n with light-regulated CPL property are designed,which are assembled by a chiral binuclear triple-stranded Eu3+helicates[Eu2(LR/s)3]coordinated with two photochromic triphenylphosphine oxides(BTFPO).Upon the alternative UV and 526 nm light irradia-tion,the complexes show the reversible photochromism,PL and CPL responses.Notably,the luminescence dissymmetry factor,glum of 5D0→7F1(591 nm)transition shows an obvious increase from 0.19 to 0.29 before and after 275 nm light irradiation.Additionally,the emission from Eu3+center is not completely quenched in closed-ring state due to the low photocyclization(ΦO-C)quantum yield of the polymer.The partial maintenance of emissive intensity is of essential importance for the monitor of CPL signal.More importantly,the CPL photo-switching property of the complexes in solid hybrid film is maintained,and still displays the enhanced CPL emission in photostationary state.Further,the potential applications of the doping film in logic gate and anti-counterfeiting were investigated.

    B and Fe co-doped Co2P hollow nanocubes for nitrate electroreduction to ammonia

    Jing MiaoQingling HongLiping LiangGuomin Li...
    278-282页
    查看更多>>摘要:Nitrate(NO3-)electroreduction reaction(NO3-RR)provides an attractive and sustainable route for NO3-pollution mitigation or energy-saved ammonia(NH3)synthesis.In this work,high-quality B and Fe co-doped Co2P hollow nanocubes(B/Fe-Co2P HNCs)are successfully synthesized though simultaneous boronation-phosphorization treatment,which reveal outstanding selectivity,activity,stability for the NO3-to NH3 conversion in neutral electrolyte because of big surface area,fast mass transport,super-hydrophilic surface,and optimized electronic structure.B/Fe-Co2P HNCs can achieve the high NH3 yield rate(22.67 mg h-1 mgcat-1)as well as Faradaic efficiency(97.54%)for NO3-RR,greatly outperforming most of non-precious metal based NO3-RR electrocatalysts.

    Preparing cyclic polymers at high concentrations via self-folding cyclization technique by adjusting the contents of hydrophilic units in linear precursors

    Hao ZhaZuowei WangChao LiuChunyan Hong...
    283-288页
    查看更多>>摘要:Cyclic polymers are a class of polymers that feature endless topology,and the synthesis of cyclic poly-mers has attracted the attention of many researchers.Herein,cyclic polymers were efficiently constructed by self-folding cyclization technique at high concentrations.Linear poly((oligo(ethylene glycol)acrylate)-co-(dodecyl acrylate))(P(OEGA-co-DDA))precursors with different ratios of hydrophilic and hydrophobic moieties were synthesized by reversible addition-fragmentation chain transfer(RAFT)polymerization us-ing a bifunctional chain transfer agent with two anthryl end groups.The amphiphilic linear precursors underwent the self-folding process to generate polymeric nanoparticles in water.By irradiating the aque-ous solution of the nanoparticles with 365 nm UV light,cyclic polymers were synthesized successfully via coupling of anthryl groups.The effects of the ratios of hydrophilic and hydrophobic moieties in linear P(OEGA-co-DDA)copolymers and polymer concentration on the purity of the obtained cyclic polymers were explored in detail via 1H nuclear magnetic resonance(1H NMR),dynamic light scattering(DLS),UV-visible(vis)analysis,three-detection size exclusion chromatography(TD-SEC)and transmission elec-tron microscopy(TEM).It was found that by adjusting the content of the hydrophilic segments in linear precursors,single chain polymeric nanoparticles(SCPNs)can be generated at high polymer concentra-tions.Therefore,cyclic polymers with high purity can be constructed efficiently.This method overcomes the limitation of traditional ring-closure method,which is typically conducted in highly dilute conditions,providing an efficient method for the scalable preparation of cyclic polymers.