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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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    Unveiling the intrinsic properties of single NiZnFeOx entity for promoting electrocatalytic oxygen evolution

    Zhihao GuJiabo LeHehe WeiZehui Sun...
    181-186页
    查看更多>>摘要：Although considerable research efforts have been devoted to the design and development of non-noble electrocatalysts for oxygen evolution reaction(OER),substantial enhancement of OER performance with commercial-scale water electrolysis remains a big challenge.This could result from the difficulties in detecting the intrinsic properties and overlooking the assembly process for electrochemical OER pro-cess.Here,we employ a microjet collision method to investigate the intrinsic OER activities of individ-ual NiZnFeOx entities with and without a moderate magnetic field.Our results demonstrate that single NiZnFeOx nanoparticles(NPs)show the excellent OER performance with a lowest onset potential(～1.35V vs.RHE)and a greatest magnetic enhancement(～118％)among bulk materials,single agglomerations and NPs.Furthermore,we explore the utility of theoretical investigation by density functional theory(DFT)calculations for studying OER process on NiZnFeOx surfaces without and with spin alignment,indicating monodispersed NiZnFeOx NPs with totally spin alignment facilitates the OER process under the external magnetic field.It is found that the well-dispersion of NiZnFeOx NPs would increase the electrical conduc-tivity and the surface spin state,resulting in promoting their OER activities.This work provides a test for uncovering the essential roles of NPs assembly to a significant promotion of their magnet-assisted OER.
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    Graphene from microwave-initiated upcycling of waste polyethylene for electrocatalytic reduction of chloramphenicol

    Qiang CaoXue-Feng ChengJia WangChang Zhou...
    187-192页
    查看更多>>摘要：Waste polyolefin plastics,accounting for 50％of all plastic waste,represent a tremendously unexploited carbon source.Efficiently upcycling polyolefin waste into value-added carbon materials for waste wa-ter treatment avoiding using noble metals is challenging but economically and environmentally sustain-able.In this work,MAX-Ti3AlC2 supported Fe selectively catalyzes polyolefin into few-layered graphene in 5 min under microwave treatment.Graphene and MAX supported Fe(Fe@MLC)can completely(99.9％)degrade chloramphenicol(CAP)within 60 min,retain robust after 10 cycles and work efficiently at a wide pH range(3.87-13.03),avoiding the usage of noble metal.Moreover,the electrochemical active sur-face area(ECSA)of Fe@MLC is 2.7 times higher than that of commercial Pt/C.This work provides a cheap and efficient catalyst that promotes deconstruction of plastic wastes and indirectly degrades antibiotics thereby realizes the treatment of waste water with waste plastic.
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    Magnesium doping to improve the light to heat conversion of OMS-2 for formaldehyde oxidation under visible light irradiation

    Tingting LiuPengfei SunWei ZhaoYingshuang Li...
    193-198页
    查看更多>>摘要：Mg-doped manganese oxide octahedral molecular sieve(Mg-OMS-2)catalysts were prepared by hy-drothermal method.The photothermal degradation performance of these catalysts for formaldehyde(HCHO)in batch system and continuous system was investigated.The light absorption of OMS-2 was increased by Mg-doped,especially for near infrared light,which promoted surface temperature reach a maximum of 214.8 ℃ under xenon irradiation.At this temperature,the reinforced surface lattice oxy-gen and oxygen vacancy that formed by lattice distortion via Mg-doped were activated.The best HCHO elimination efficiency was achieved over Mg0.2/OMS-2 catalyst with Mg2+/Mn2+=1/5,which could re-duce HCHO from 250 ppm to 10 ppm within 20 min.The in situ DRIFTS was also carried out to monitor the changes in the content of reaction intermediates and analyze the degradation paths of HCHO.It was found the HCHO was attacked by formed·OH and·O2-to generate formate species and carbonate species,and finally transformed to CO2 and H2O.This photothermal catalytic oxidation process exhibited a high efficiency purification of HCHO without the help of extra energy consumption.
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    Covalent organic frameworks doped with manganese-metal organic framework for peroxymonosulfate activation

    Yinyin XuYuanyuan LiJingbo FengChen Wang...
    199-203页
    查看更多>>摘要：A novel N,O modified Mn3O4@porou1s carbon catalyst(NOC-Mn3O4)was prepared by direct carboniza-tion using the manganese-metal organic framework(Mn-MOF)and covalent organic framework(COF)as precursors to activate peroxymonosulfate(PMS)for the degradation of bisphenol A(BPA)and rhodamine B(RhB).Benefiting from the N and O co-doping of COF,larger specific surface area,faster electron trans-fer and Mn cycling,the optimum 1NOC-Mn3O4 could significantly improve the degradation performance of BPA and RhB(92.1％and 96.9％within 30 min)as compared to C-Mn3O4 without COF doping.In addi-tion,1NOC-Mn3O4 showed good reusability and strong anti-interference ability.Radical quenching exper-iments,X-ray photoelectron spectroscopy(XPS),Electron paramagnetic resonance spectrometer(EPR)and electrochemical tests showed that the 1NOC-Mn3O4/PMS system degraded BPA and RhB by both radical and non-radical pathways.Moreover,the possible degradation pathways of BPA and RhB were proposed by liquid chromatography-mass spectrometry(LC-MS).Except for that,the toxicity of BPA,RhB and their intermediates were evaluated.This study opens up a new prospect for the design of COF-doped PMS catalysts.
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    Efficient electroreduction of nitrate via enriched active phases on copper-cobalt oxides

    Ling FangSha WangShun LuFengjun Yin...
    204-209页
    查看更多>>摘要：Electrochemical conversion of nitrate(NO3-)to ammonia(NH3)can target two birds with one stone well,in NO3--containing sewage remediation and sustainable NH3 production.However,single metal-based catalysts are difficult to drive high-efficient NO3-removal due to the multi-electron transfer steps.Herein,we present a tandem catalyst with simple structure,Cu-Co binary metal oxides(Cu-Co-O),by en-gineering intermediate phases as catalytic active species for NO3-conversion.Electrochemical evaluation,X-ray photoelectron spectroscopy,and in situ Raman spectra together suggest that the newly-generated Cu-based phases was prone to NO3-to NO2-conversion,then NO2-was reduced to NH3 on Co-based species.At an applied potential of-1.1 V vs.saturated calomel electrode,the Cu-Co-O catalyst achieved NO3--N removal of 90％and NH3 faradaic efficiency of 81％for 120 min in 100 mL of 50mg/L NO3--N,consuming only 0.69 kWh/mol in a two-electrode system.This study provides a facile and efficient engi-neering strategy for developing high-performance catalysts for electrocatalytic nitrate conversion.
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    Efficient NOx abatement by passive adsorption over a Pd-SAPO-34 catalyst prepared by solid-state ion exchange

    Linhui LiuWuwan XiongMingli FuJunliang Wu...
    210-213页
    查看更多>>摘要：Palladium-exchanged chabazite(Pd-CHA)zeolites as passive NOx adsorbers(PNAs)enable efficient pu-rification of nitrogen oxides(NOx)in cold-start diesel exhausts.Their commercial application,however,is limited by the lack of facile preparation method.Here,high-performance CHA-type Pd-SAPO-34 zeo-lite was synthesized by a modified solid-state ion exchange(SSIE)method using PdO as Pd precursor,and demonstrated superior PNA performance as compared to Pd-SAPO-34 prepared by conventional wet-chemistry strategies.Structural characterization using Raman spectroscopy and X-ray diffraction revealed that the SSIE method avoided water-induced damage to the zeolite framework during Pd loading.Mech-anistic investigations on the SSIE process by in situ infrared spectroscopy and X-ray photoelectron spec-troscopy disclosed that,while PdO precursor was mainly converted to Pd2+cations coordinated to the zeolite framework by consuming the-OH groups of the zeolite,a portion of PdO could also undergo thermal decomposition to form highly dispersed Pd0 clusters in the pore channels.This simplified and scalable SSIE method paves a new way for the cost-effective synthesis of defect-free high-performance Pd-SAPO-34 zeolites as PNA catalysts.
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    Reinforced concrete-like Na3.5V1.5Mn0.5(PO4)3@graphene hybrids with hierarchical porosity as durable and high-rate sodium-ion battery cathode

    Tao LongPeng ChenBin FengCaili Yang...
    214-219页
    查看更多>>摘要：Realizing high-rate capability and high-efficiency utilization of polyanionic cathode materials is of great importance for practical sodium-ion batteries(SIBs)since they usually suffer from extremely low elec-tronic conductivity and limited ionic diffusion kinetics.Herein,taking Na3.5V1.5Mn0.5(PO4)3(NVMP)as an example,a reinforced concrete-like hierarchical and porous hybrid(NVMP@C@3DPG)built from 3D graphene("rebar")frameworks and in situ generated carbon coated NVMP("concrete")has been devel-oped by a facile polymer assisted self-assembly and subsequent solid-state method.Such hybrids deliver superior rate capability(73.9 mAh/g up to 20 C)and excellent cycling stability in a wide temperature range with a high specific capacity of 88.4 mAh/g after 5000 cycles at 15 C at room temperature,and a high capacity retention of 97.1％after 500 cycles at 1 C(-20 ℃),and maintaining a high reversible capacity of 110.3 mAh/g in full cell.This work offers a facile and efficient strategy to develop advanced polyanionic cathodes with high-efficiency utilization and 3D electron/ion transport systems.
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    Self assembled electron blocking and lithiophilic interface towards dendrite-free solid-state lithium battery

    Caixia LiYi QiuYufeng ZhaoWuliang Feng...
    220-225页
    查看更多>>摘要：The poor interfacial contact is one of the biggest challenges that solid-state lithium batteries suffer from.Reducing the solid-state electrolyte surface energy by transforming the interface from lithiophobic to lithiophilic is effective to promote the interfacial contact,but electronic conductive interphases usually increase the risk of electron attack,thus leading to uncontrollable Li dendrite growth.Herein,we propose a self-assembled thermodynamic stable LiI interphase to simultaneously improve the interfacial contact between the garnet electrolyte Li7La3Zr2O12(LLZO)and Li anode,and prohibit the electron attack.The direct contact between LLZO and Li and the high temperature Li melting process was ascribed to Zr4+reduction,which facilitated Li dendrite formation and propagation.With the modification of the high lithiophilic I2 thin film,the area specific interfacial resistance of LLZO/Li was reduced from 1525 Ω/cm2 to 57 Ω/cm2.More importantly,LLZO was protected from being reduced due to the outstanding electronic insulativity of the LiI interphase,which leaded to a high critical current density of 1.2/7.0 mA/cm2 in the time/capacity-constant modes,respectively.
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    Engineering and understanding SnS0.5Se0.5@N/S/Se triple-doped carbon nanofibers for enhanced sodium-ion batteries

    Fanjun KongYixin GeShi TaoZhengqiu Yuan...
    226-230页
    查看更多>>摘要：Tin-based chalcogenides have attracted tremendous attention as an anode material for sodium storage owing to their unique structure and high theoretical capacity.Unfortunately,the large volume change and poor conductivity lead to sluggish reaction kinetics and poor cycling performance.Herein,SnS0.5Se0.5 nanoparticles coupled with N/S/Se triple-doped carbon nanofibers(SnS0.5Se0.5@NSSe-C)are designed and synthesized through electrospinning and annealing process.Benefiting from the synergistic effects of SnS0.5Se0.5 and NSSe-C,the SnS0.5Se0.5@NSSe-C nanofibers exhibit a high reversible capacity and ultralong cycle life at higher current density for sodium-ion batteries.Furthermore,the sodium storage mechanism and electrochemical reaction kinetics of the SnS0.5Se0.5@NSSe-C composite are characterized by the in-situ measurements.The theoretical calculations further reveal the structural advantages of SnS0.5Se0.5@NSSe-C composite,which exhibits a high adsorption energy of Na+.This work can provide a novel idea for the synthesis of ternary tin-based chalcogenides and is beneficial for the investigation of their reaction kinetics.
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    Enabling superior electrochemical performance of NCA cathode in Li5.5PS4.5Cl1.5-based solid-state batteries with a dual-electrolyte layer

    Ziling JiangShaoqing ChenChaochao WeiZiqi Zhang...
    231-236页
    查看更多>>摘要：LiNi0.8Co0.15Al0.05O2(NCA)is a promising cathode for sulfide-based solid-state lithium batteries(ASSLBs)profiting from its high specific capacity and voltage plateau,which yielding high energy density.How-ever,the inferior interfacial stability between the bare NCA and sulfides limits its electrochemical per-formance.Hereien,the dual-electrolyte layer is proposed to mitigate this effect and enhance the battery performances of NCA-based ASSLIBs.The Li3lnCl6 wih high conductivity and excellent electrochemcial stability act both as an ion additives to promote Li-ion diffusion across the interface in the cathode and as a buffer layer between the cathode layer and the solid electrolyte layer to avoid side reactions and improve the interface stability.The corresponding battery exhibits high discharge capacities and superior cyclabilities at both room and elevated temperatures.It exhibits discharge performance of 237.04 and 216.07 mAh/g at 0.1 and 0.5 C,respectively,when cycled at 60 ℃,and sustains 95.9％of the capacity after 100 cycles at 0.5 C.The work demonstrates a simple strategy to ensure the superior performances of NCA in sulfide-based ASSLBs.
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