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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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    Photochemical synthesis and group transfer reactions of azoxy compounds

    Mei PengWei-Min He
    1-2页

    The 4th CCL Organic Chemistry Forum held in Zhangye

    Yingxiao ZongYangfei WeiXiaoqing LiuJunke Wang...
    3-6页

    Defect engineered electrocatalysts for C-N coupling reactions toward urea synthesis

    Shengkai LiYuqin ZouChen ChenShuangyin Wang...
    7-14页
    查看更多>>摘要:Urea is extensively used in agriculture and chemical industry,and it is produced on an industrial scale from CO2 and Haber-Bosch NH3 under relatively high temperature and high pressure conditions,which demands high energy input and generates masses of carbon footprint.The conversion of CO2 and N sources(such as NO2-,NO3-,and N2)through electrocatalytic reactions under ambient conditions is a promising alternative to realize efficient urea synthesis.Of note,the design of electrocatalyst is one of the key factors that can improve the efficiency and selectivity of C-N coupling reactions.Defect engineer-ing is an intriguing strategy for regulating the electronic structure and charge density of electrocatalysts,which endows electrocatalysts with excellent physicochemical properties and optimized adsorption en-ergy of the reaction intermediates to reduce the kinetic barriers.In this minireview,recent advances of defect engineered electrocatalysts in urea electrosynthesis from CO2 and various N reactants are firstly introduced.Mechanistic discussions of C-N coupling in these advances are presented,with the aim of directing future investigations on improving the urea yield.Finally,the prospects and challenges of de-fect engineered electrocatalysts for urea synthesis are discussed.This overview is expected to provide in-depth understanding of structure-reactivity relationship and shed light on future electrocatalytic C-N coupling reactions.

    Surface chemical microenvironment engineering of catalysts by organic molecules for boosting electrocatalytic reaction

    Xianxu ChuLu WangJunru LiHui Xu...
    15-24页
    查看更多>>摘要:Electrocatalysis is a surface-sensitive process,in which the catalytic activity of electrocatalyst highly re-lates to the surface adsorption/desorption behaviors of the reactants/intermediates/products on the cat-alytically active sites.Surface chemical microenvironment engineering via organic molecules functional-ization is a promising strategy to tune the electrocatalytic activity since it can well modify the elec-trode/electrolyte interface and alter the reaction pathways.In this review,we summarize the recent progress of surface microenvironment engineering of electrocatalysts induced by organic molecules func-tionalization,with the special focus on the organic molecule-assisted growth mechanism and unique electronic effect.More importantly,the applications of organic molecule functionalized catalysts in var-ious electrocatalytic reactions are also systematically summarized,along with a deep discussion on the conclusion and perspective.This work will open a new avenue for the construction and modification of advanced electrocatalysts based on organic molecule-mediated interface engineering.

    A new popular transition metal-based catalyst:SmMn2O5 mullite-type oxide

    Yatian DengDao WangJinglan ChengYunkun Zhao...
    25-35页
    查看更多>>摘要:Catalyst with high performance has drawn increasing attention recently due to its significant advantages in chemical reactions such as speeding up the reaction,lowering the reaction temperature or pressure,and proceeding without itself being consumed.Despite the superior catalytic performance of precious metal catalysts,transition metal oxides offer a promising route for substitution of precious metals in catalysis arising from their low cost,intrinsic activity and sufficient stability.Mullite-type oxide SmMn2O5 exhibits a unique crystal structure containing double crystalline fields,and nowadays is used widely as the catalyst in different chemical reactions,including the reactions of vehicle emissions reduction and oxygen evolution reaction,gas sensors,and metal-air batteries,promoting attention in catalytic perfor-mance enhancement.To our knowledge,there is no review article covering the comprehensive informa-tion of SmMn2O5 and its applications.Here we review the recent progress in understanding of the crys-tal structure of SmMn2O5 and its basic physical properties.We then summarize the catalytic sources of SmMn2O5 and reaction mechanisms,while the strategies to improve catalytic performance of SmMn2O5 are further presented.Finally,we provide a perspective on how to make further progress in catalytic applications.

    Hydrothermal liquefaction of biomass for jet fuel precursors:A review

    Shengfei DongZiyu LiuXiaoyi Yang
    36-49页
    查看更多>>摘要:Climate change is an important issue facing the world today and carbon reduction has become the fo-cus of attention for all countries.Alternative bio-fuels are an important means to achieve carbon emis-sion reduction.The production of jet fuel precursors from biomass by hydrothermal liquefaction(HTL)has received a lot of attention due to its mild conditions and environmental friendliness.Lignocellulosic biomass and algal biomass are considered as the second and the third generation biomasses as promising raw materials for alternative fuel preparation.Among them,lignocellulosic biomass has been extensively studied due to its wide range of sources and can be divided into one-step HTL and stepwise HTL accord-ing to the process method.Algal biomass has been extensively studied experimentally due to its short growth cycle and the fact that it can sequester large amounts of carbon without taking up arable land.In this paper,the feedstock composition of different biomasses is reviewed for the HTL of biomass.A detailed review of the process characteristics,reaction pathways and influencing factors for the HTL pro-duction of jet fuel precursors from lignocellulosic biomass and algal biomass is also presented.Theoretical references are provided for further process optimization and bio-crude quality upgrading.

    Water molecules regulation for reversible Zn anode in aqueous zinc ion battery:Mini-review

    Jie ZhouQuanyu LiXiaomeng HuWeifeng Wei...
    50-61页
    查看更多>>摘要:With the low cost,excellent safety and high theoretical specific capacity,aqueous zinc-ion batteries(AZ-IBs)are considered as a potential rival for lithium-ion batteries to promote the sustainable development of large-scale energy storage technologies.However,the notorious Zn dendrites and low Coulombic effi-ciency(CE)limit further development of AZIBs,due to the unstable electrochemical deposition/stripping behavior of Zn anode in aqueous zinc ion electrolytes.In this review,critical issues and advances are summarized in electrolyte engineering strategies.These strategies are focused on active water molecules during electrochemical process,including high-concentration electrolytes,ionic liquids,gel-polymer elec-trolytes and functional additives.With suppressed active water molecules,the solvation and de-solvation behavior of Zn2+can be regulated,thereby modulating the electrochemical performance of Zn anode.Finally,the inherent problems of these strategies are discussed,and some promising directions are pro-vided on electrolytes engineering for high performance Zn anode in AZIBs.

    Thermal pyrolysis conversion of methane to hydrogen(H2):A review on process parameters,reaction kinetics and techno-economic analysis

    Yi Herng ChanZhe Phak ChanSerene Sow Mun LockChung Loong Yiin...
    62-73页
    查看更多>>摘要:Hydrogen(H2)is a promising renewable energy which finds wide applications as the world gears toward low-carbon economy.However,current H2 production via steam methane reforming of natural gas or gasification of coal are laden with high CO2 footprints.Recently,methane(CH4)pyrolysis has emerged as a potential technology to generate low-carbon H2 and solid carbon.In this review,the current state-of-art and recent progress of H2 production from CH4 pyrolysis are reviewed in detail.Aspects such as funda-mental mechanism and chemistry involved,effect of process parameters on the conversion efficiency and reaction kinetics for various reaction media and catalysts are elucidated and critically discussed.Temper-ature,among other factors,plays the most critical influence on the methane pyrolysis reaction.Molten metal/salt could lower the operating temperature of methane pyrolysis to<1000 ℃,whereas plasma technology usually operates in the regime of>1000 ℃.Based on the reaction kinetics,metal-based cata-lysts were more efficient in lowering the activation energy of the reaction to 29.5-88 kj/mol from that of uncatalyzed reaction(147-420.7 kj/mol).Besides,the current techno-economic performance of the pro-cess reveals that the levelized cost of H2 is directly influenced by the sales price of carbon(by-product)generated,which could offset the overall cost.Lastly,the main challenges of reactor design for efficient product separation and retrieval,as well as catalyst deactivation/poisoning need to be debottlenecked.

    A review of covalent organic frameworks for metal ion fluorescence sensing

    Deshuai ZhenChunlin LiuQiuhui DengShaoqi Zhang...
    74-83页
    查看更多>>摘要:The concentration of metallic elements is closely associated with overall health.However,the discharge of untreated industrial wastewater can lead to metal-containing pollutants entering the human body through the food chain,disrupting the organism's homeostasis and posing a risk to human health.Co-valent organic framework materials(COFs)have emerged as a novel porous material for detecting or adsorbing metal ions due to their unique pore structure,topological structure and flexible design.This paper summarizes the role,toxicity,and sources of metal ions related to human health,as well as the design,synthesis and performance of COFs fluorescent materials for detecting these elements.The inter-action mechanism of different fluorescent COFs and metal ions are discussed.Additionally,the remaining challenges and prospects of COFs fluorescence sensors are provided.We believe this review will be useful in directing the development of fluorescent COFs towards metal ions.

    Applications of flexible electrochemical electrodes in wastewater treatment:A review

    Jiqing LiuQi DangLiting WangDejin Wang...
    84-92页
    查看更多>>摘要:T he advancement of energy storage technology has paved the way for the application of electrochemi-cal processes in achieving low-carbon and precise environmental pollution reduction.Electrodes play a crucial role in efficiently removing organic pollutants and heavy metals.To implement electrochemical pollution control technology in practical engineering,flexible electrode preparation is vital.This review highlights recent progress in flexible electrode research,focusing on the selection and structural design of flexible electrode materials.It summarizes the latest advancements in current collectors,active mate-rials,and preparation methods to enhance conductivity,flexibility,and cycle stability.The application of flexible electrodes in water pollution control is categorized into three aspects:Organic pollutants,inor-ganic pollutants,and composite pollutants.Finally,the challenges and research requirements for enhanc-ing electrode flexibility in environmental governance are discussed,along with prospects for their future applications.