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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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    Alloy as advanced catalysts for electrocatalysis:From materials design to applications

    Pingfan ZhangShihuan HongNing SongZhonghui Han...
    104-122页
    查看更多>>摘要：With the deep integration of electrochemical research with energy,environment,catalysis,and other fields,more and more new electrochemical catalytic reactions have entered our research field.Alloy cat-alysts have recently emerged as a new type of nanomaterial due to the rapid development of kinetic controlled synthesis technology.These materials offer several advantages over monometallic catalysts,in-cluding larger element combinations,complex geometries,bifunctional sites,and reduced use of precious metals.This paper provides a review of alloy electrocatalysts that are designed and prepared specifically for electrocatalytic applications.The use of alloy materials in electrocatalyst design is also discussed,high-lighting their widespread application in this field.First,various synthesis methods and synthesis mech-anisms are systematically summarized.Following that,by correlating the properties of materials with the structure,relevant strategies toward advanced alloy electrocatalysts including composition regulation,size,morphology,surface engineering,defect engineering,interface engineering and strain engineering are classified.In addition,the important electrocatalytic applications and mechanisms of alloy electro-catalysts are described and summarized.Finally,the current challenges and prospects regarding the de-velopment of alloy nanomaterials are proposed.This review serves as a springboard from a fundamental understanding of alloy structural dynamics to design and various applications of electrocatalysts,partic-ularly in energy and environmental sustainability.
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    MXene-derived quantum dots based photocatalysts:Synthesis,application,prospects,and challenges

    Hao DengYuxin HuiChao ZhangQi Zhou...
    123-133页
    查看更多>>摘要：In recent years,the emerging two-dimensional material-MXenes has attracted widespread attention in the field of photocatalysis due to its high conductivity,suitable Fermi level,tunable elemental composi-tion,and excellent photoelectric properties.The zero-dimensional quantum dots(MQDs)derived from 2D MXenes not only inherit the characteristics of MXenes but also exhibit better performance due to the quantum size effect.Based on the above excellent physical and chemical properties,MQDs are often used as co-catalysts of photocatalysts,and show excellent co-catalytic properties.At the same time,compared with other cocatalysts(precious metals,metal oxides,metal sulfides),it has the advantages of low cost and high conductivity.Therefore,understanding the status of MQDs in the field of photocatalysis is crucial for their further development.In this review,we summarized the synthesis and modification methods of MQDs in recent years,as well as their photocatalytic applications in H2 production,CO2 reduction,N2 fix-ation,pollutant degradation,and other aspects.In addition,the challenges and prospects faced by MQDs are also proposed,providing theoretical guidance for the further development of MQD-based photocata-lysts.
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    Indium-based electrocatalysts for CO2 reduction to C1 products

    Qin ChengMing HuangQingqing YeBangwei Deng...
    134-145页
    查看更多>>摘要：Electrocatalytic CO2 reduction at mild conditions is a promising strategy to transform greenhouse gases into fuels or value-added chemicals to solve the increasingly serious environmental and energy problems.The most crucial factor in determining the CO2 reduction performance is to develop efficient electrocat-alysts with high selectivity and stability.Among the various electrocatalysts,indium-based catalysts have attracted extensive attention due to their non-toxicity,low cost,and high formic acid/formate selectivity.In this work,we comprehensively review the recent development and research progress of indium-based electrocatalysts for CO2RR.The reaction mechanism,reaction pathways,structure-activity relationship,and strategies to enhance the activity of CO2RR on indium-based catalysts have also been briefly pre-sented and discussed.Finally,the existing challenges and future developments for indium-based high-performance catalysts for CO2RR are proposed.
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    Recent advances on decomplexation mechanisms of heavy metal complexes in persulfate-based advanced oxidation processes

    Shili WangMamitiana Roger RazanajatovoXuedong DuShunli Wan...
    146-154页
    查看更多>>摘要：In some industrial wastewater,heavy metals combine with organic complexing agents to form heavy metal complexes(HMCs).These HMCs can be difficult to decompose and remove through conventional techniques due to their higher stability than free heavy metal ions.In recent years,persulfate based ad-vanced oxidation processes(PS-based AOPs)have been recognized as a viable technique for HMCs degra-dation.Nevertheless,a comprehensive and in-depth understanding of the relevant HMCs decomplexation mechanisms in PS-based AOPs is still lacking.This review delineates the current progress of HMCs de-complexation in PS-based AOPs.We discuss the distinctions between the two widely used oxidant types in PS-based AOPs techniques.Moreover,we summarize and highlight the decomplexation mechanisms based on electron and energy transfer,and degradation pathways of HMCs.We also emphasize the ef-fects of environmental water constituents,namely pH,inorganic ions,and natural organic matter(NOM),on HMCs decomplexation.Ultimately,we identify the existing challenges and perspectives that will steer the direction of advancing PS-based AOPs to remove HMCs.
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    New insights into the effect of hard carbons microstructure on the diffusion of sodium ions into closed pores

    Mingxin SongLijing XieFangyuan SuZonglin Yi...
    155-160页
    查看更多>>摘要：Closed pores formed in hard carbons play an essential role in sodium storage at plateau region.How-ever,the effect of different structural features on the diffusion of sodium ions into closed pores remains unclear.Herein,a precursor reconstruction strategy is conducted to regulate carbon microstructures in-cluding interlayer spacing,defect concentration,and closed pore volume by changing the ratio of aro-matic and polysaccharide components.Aromatic structure parts tend to develop disordered carbons with fewer defects,larger interlayer spacing,and smaller closed pore volume,while polysaccharide compo-nents prefer to form disordered carbons with more defects,smaller interlayer spacing,and larger closed pore volume.Through the correlation analysis of microstructure features and the sodium storage capac-ity below 0.1 V.It finds that the intercalation capacity is proportional to the ratio of pseudo-graphitic domains,whereas the pore filling capacity appeared at lower potential gradually decreases with the in-creasing defect concentration due to homo-ionic repulsion effect,without linear correlation with short-range microcrystalline and closed pore volume.The optimized sample with suitable interlayer spacing and defect concentration exhibits a high plateau capacity of 241.7 mAh/g.This work provides insights into the exploitation of closed pore sodium storage performance.
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    Integrated interconnected porous and lamellar structures realized fast ion/electron conductivity in high-performance lithium-sulfur batteries

    Ya SongMingxia ZhouZhu ChenHuali Nie...
    161-167页
    查看更多>>摘要：The practical application of high-energy-density lithium-sulfur(Li-S)batteries have been highly praised for energy storage devices,while are largely hindered by the"shuttling effect".Herein,core-shell carbon spheres composed of interlinked porous core and lamellar shell were designed to restrain the polysulfide shuttling.The microporous structure with pore size of around 1 nm effectively trap lithium polysulfides.Furthermore,the interconnected porous core shortens the ion transfer distance and the lamellar carbon shell endows the carbon spheres with fast electron conduction,finally facilitating polysulfide conversion kinetics.Therefore,the Li-S batteries with the carbon spheres as the interlayer show high discharge spe-cific capacity of 1002mAh/g at 2C with 574mAh/g remaining after 600 cycles,and high areal capacity of 5.48 mAh/cm2 with sulfur loading of 4.67 mg/cm2 at 0.1 C.The corresponding pouch cells also exhibit stable cycling stability with an initial discharge specific capacity of 1082 mAh/g at 0.1 C.
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    Interfacial/bulk synergetic effects accelerating charge transferring for advanced lithium-ion capacitors

    Chang LiuZirui SongXinglan DengShihong Xu...
    168-175页
    查看更多>>摘要：The exploration of advanced materials through rational structure/phase design is the key to develop high-performance lithium-ion capacitors(LICs).However,high complexity of material preparation and diffi-culty in quantity production largely hinder the further development.Herein,Cu5FeS4-x/C(CFS@C)hetero-junction with rich sulfur vacancies has successfully achieved from natural bornite,presenting low cost-effective and bulk-production prospect.Density functional theory(DFT)calculations indicate that rich vacancies in bulk phase can decrease band gap of bornite and thus improve its intrinsic electron conduc-tivity,as well as the heterojunction spontaneously evokes a built-in electric field between its interfacial region,largely reducing the migration barrier from 1.27 eV to 0.75 eV.Benefited from these merits,the CFS@C electrodes deliver outperformed lithium storage performance,e.g.,high reversible capacity(822.4 mAh/g at 0.1 A/g),excellent cycling stability(up to 820 cycles at 2 A/g and 540 cycles at 5 A/g with re-spective capacity retention of over or nearly 100％).With CFS@C as anode and porous carbon nanosheets(PCS)as cathode,the assembled CFS@C//PCS LIC full cells exhibit high energy/power density characteris-tics of 139.2 Wh/kg at 2500 W/kg.This work is expected to offer significant insights into structure modi-fications/devising toward natural minerals for advanced energy-storage systems.
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    Lead-free hybrid two-dimensional double perovskite with switchable dielectric phase transition

    Tian YangYi LiuLina HuaYaoyao Chen...
    176-179页
    查看更多>>摘要：Molecular dielectric switches constitute a type of intelligent materials that are highly coveted for their distinctive advantages of switchable dielectric responses,lightweight,and mechanical flexibility.Two-dimensional(2D)hybrid perovskites have demonstrated excellent promise for assembling dielectric switches,in which the dynamic motions of organic moieties afford driving force to trigger switchable dielectric phase transition.Here,we successfully assembled a new lead-free hybrid double perovskite,(CHA)4CuBiBr8(1,CHA=cyclohexylammonium),adopting a typical 2D structural motif,which shows di-electric anisotropy and bistable behaviors during the reversible phase transition near Tc=378K(the Curie temperature).That is,its dielectric constants could be switched and tuned between high-dielectric and low-dielectric states.Structure analyses reveal that the ordered-disordered transformation of the organic CHA+moiety and distortion of inorganic framework account for its phase transition.This result will stim-ulate further exploration of molecular dielectric switches in this 2D environmentally friendly family.
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    Two-dimensional conjugated coordination polymer monolayer as anode material for lithium-ion batteries:A DFT study

    Xin-Tong ZhaoJin-Zhi GuoWen-Liang LiJing-Ping Zhang...
    180-184页
    查看更多>>摘要：Nowadays,lithium-ion batteries(LIBs)play a crucial role in modern society in the aspect of portable electronic devices and large-scale smart grids.However,the current performance of lithium-ion batteries has been unable to meet the growing expectations of society and scientific community.Herein,we have synthetically investigated availability of 2D Ni-TABQ monolayer as anode based on DFT for LIBs applica-tions.Our findings have demonstrated that 2D Ni-TABQ monolayer is a semiconductor with a small band gap of 0.2 eV,which suggest that the electronic property of 2D Ni-TABQ monolayer would take place an evident shift from semiconductor property to metallic property after Li adsorption.Furthermore,we checked the stability of 2D Ni-TABQ monolayer and investigated the viability of exfoliation from bulk multilayer Ni-TABQ to form 2D Ni-TABQ monolayer in the light of exfoliation energy and binding energy.We continuously studied electrochemical properties of 2D Ni-TABQ monolayer with respect of theoreti-cal specific capacity,Li-ion diffusion barriers and open-circuit voltage.During the charging process,2D Ni-TABQ monolayer can achieve a high specific capacity of 722 mAh/g with an open-circuit voltage range from 1.12 V to 0.22 V.These aforementioned results make the 2D Ni-TABQ monolayer a promising anode for LIBs.
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    Exploring centimeter-sized crystals of bismuth-iodide perovskite toward highly sensitive X-ray detection

    Xin DongJing LiangZhijin XuHuajie Wu...
    185-188页
    查看更多>>摘要：Lead-halide perovskites exhibit outstanding performance in X-ray detection due to their intrinsic fea-tures such as high charge carrier mobility,large atomic number,and long carrier lifetime,but the tox-icity of lead is regarded as the major factor hindering their development.Here,we introduce organic molecule(R)-(-)-2-methylpiperazine(R-MPz)into the bismuth-based structure to synthesize lead-free(R)-(H2MPz)Bil5(R-MBI).The high-quality centimeter-sized single crystals have been obtained,which show a low dark current and superior environmental stability.Particularly,the single-crystal device of R-MBI exhibits a high μτ product up to 1.88 × 10-4 cm2/V and a low trap density of 1.21 × 1010 cm-3.Further,the detector displays excellent detection sensitivity of 263.58 μC Gyair-1 cm-2 and a favorable low detection limit of 4.35 μGyair/s,both of which meet the requirement for medical diagnostics.These find-ings shed light on the exploration of innovative bismuth-based hybrid perovskites for high-performance X-ray detection.
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