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Highly stable Zn anodes realized by 3D zincophilic and hydrophobic interphase buffer layer

Nano Research Energy 2024年第3期3卷 28-38页

作者： Yunfei Shen Pengjie Fu Jianjie Liu Kaisheng Sun Huanzhang Wen Ping Liu Heng Lv Tiantian Gu Xiaodong Yang Long Chen School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering Shihezi UniversityShihezi 832003China Key Laboratory of Ecophysics and Department of Physics College of ScienceShihezi UniversityShihezi 832003China

Aqueous zinc-ion batteries(AZIBs)are promising contenders for energy storage systems owing to their low cost and high ***,their practical application is hindered by uncontrolled Zn dendrites and other side ***,the three-dimensional(3D)TiO2/Cu2Se/C heterostructure layer derived from MXene/Cu-MOF is constructed on the Zn anode to control the deposition/dissolution behavior,which has numerous active sites,better electrical conductivity and excellent structural *** on DFT calculation,the built-in electric field(BIEF)formed of TiO2/Cu2Se/C can enhance charge transfer and ionic diffusion to inhibit the ***,hydrophobic coating has the ability to impede the corrosion and hydrogen evolution reaction(HER)of zinc ***,TiO2/Cu2Se/C@Zn enable the stable and reversible Zn plating/stripping process with the outstanding lifetime of 1100 h at 2 mA·cm^(-2) and even 650 h at 10 mA·cm^(-2).The batteries constructed with commercial MnO2 cathodes demonstrate the remarkable capacity(248.7 mAh·g−1 at 0.1 A·g−1)and impressive cycle stability(with 71.3%capacity retention after 300 cycles).As well as extending the life of AZIBs,this study is also motivating for other metal anode based secondary batteries.

关键词： zinc anode heterostructure built-in electric field zincophilic hydrophobic

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In situ observation of the electrochemical behavior of Li–CO_(2)/O_(2)batteries in an environmental transmission electron microscope

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Carbon Energy 2024年第4期6卷 244-255页

作者： Peng Jia Yunna Guo Dongliang Chen Jingming Yao Xuedong Zhang Jianguo Lu Yuqing Qiao Liqiang Zhang Hebei Key Laboratory of Applied Chemistry College of Environmental and Chemical EngineeringYanshan UniversityQinhuangdaoChina State Key Laboratory of Metastable Materials Science and Technology Clean Nano Energy CenterYanshan UniversityQinhuangdaoChina State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhouChina Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtanChina

Li–CO_(2)/O_(2)batteries,a promising energy storage technology,not only provide ultrahigh discharge capacity but also capture CO_(2)and turn it into renewable *** electrochemical reaction pathways'ambiguity,however,creates a hurdle for their practical *** study used copper selenide(CuSe)nanosheets as the air cathode medium in an environmental transmission electron microscope to in situ study Li–CO_(2)/O_(2)(mix CO_(2)as well as O_(2)at a volume ratio of 1:1)and Li–O_(2)batteries as well as Li–CO_(2)*** discharge reactions take place successively in the Li–CO_(2)/O_(2)–CuSe nanobattery:(I)4Li^(+)+O_(2)+4e^(−)→2Li_(2)O;(II)Li_(2)O+CO_(2)→Li_(2)CO_(3).The charge reaction proceeded via(III)2Li_(2)CO_(3)→4Li^(+)+2CO_(2)+O_(2)+4e^(−).However,Li–O_(2)and Li–CO_(2)nanobatteries showed poor cycling stability,suggesting the difficulty in the direct decomposition of the discharge *** fluctuations of the Li–CO_(2)/O_(2)battery's electrochemistry were also shown to depend heavily on O_(2).The CuSe‐based Li–CO_(2)/O_(2)battery showed exceptional electrochemical *** Li^–CO_(2)/O_(2)battery offered a discharge capacity apex of 15,492 mAh g^(−1) and stable cycling 60 times at 100 mA g^(−1).Our research offers crucial insight into the electrochemical behavior of Li–CO_(2)/O_(2),Li–O_(2),and Li–CO_(2)nanobatteries,which may help the creation of high‐performance Li–CO_(2)/O_(2)batteries for energy storage applications.

关键词： CuSe nanosheets electrochemical reaction in situ environmental transmission electron microscopy Li-CO_(2)battery Li-CO_(2)/O_(2)battery Li-O_(2)battery

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In situ irradiated XPS investigation on S-scheme TiO_(2)/Bi_(2)S_(3)photocatalyst with high interfacial charge separation for highly efficient photothermal catalytic CO_(2)reduction

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Journal of Materials Science & technology 2024年第22期189卷 86-95页

作者： Jing Yang Juan Wang Guohong Wang Kai Wang Jinmao Li Li Zhao Hubei Key Laboratory of Pollutant Analysis and Reuse Technology College of Chemistry and Chemical EngineeringHubei Normal UniversityHuangshi 435002China Hubei Key Laboratory of Polymer Materials School of Materials Science and EngineeringHubei UniversityWuhan 430062China

The combination of S-scheme heterojunction and photothermal effect is a promising strategy to achieve efficient CO_(2)photoreduction into solar fuel due to the boosted charge carrier separation efficiency and faster surface reaction ***,unique photothermal-coupled TiO_(2)/Bi_(2)S_(3)S-scheme heterojunction nanofibers were fabricated and applied to a full-spectrum CO_(2)photoreduction *** functional theory calculation and experimental analyses have confirmed the generation of the internal electric field and the S-scheme electron transfer pathway,leading to a highly efficient charge carrier *** to the excellent photothermal conversion capacity of Bi_(2)S_(3),the photogenerated electron transfer rate,and surface reaction rate were further accelerated in hybrid *** the synergistic effect of Sscheme heterojunction and photothermal effects,the optimal TiO_(2)/Bi_(2)S_(3)nanofibers achieved 7.65μmol h^(–1)of CH_(4)production rate,which is 5.24 times higher than that of pristine TiO_(2).Moreover,the morphology reconstruction of Bi_(2)S_(3)in hybrids facilitates the CH4 selectivity was significantly improved from 64.2%to 88.7%.Meanwhile,the CO_(2)photoreduction reaction route over TiO_(2)/Bi_(2)S_(3)nanofibers was investigated based on in-situ Fourier transform infrared *** work provides some useful hints for designing highly efficient photothermal-coupled photocatalysts for CO_(2)photoreduction.

关键词： TiO_(2)/Bi_(2)S_(3) S-scheme heterojunction Photocatalytic CO_(2)reduction Photothermal effect

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Hypoxia-triggered photothermal/drug combination therapy of tumors using a perylene diimide molecular capsule

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Science China Chemistry 2025年第3期68卷 1009-1017页

作者： Fei Yang Guo Wang Kecheng Huang Yanqing Xu Xiao Feng Weizhi Wang Wei Wei Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information TechnologySchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory for Optical Materials and Photonic Devices Department of ChemistryCapital Normal UniversityBeijing 100048China

Hypoxia is a common characteristic of tumors and associated with poor outcome in most cancer types,thus hypoxia-triggered combined therapeutic systems with well-defined structure hold significant promise for achieving specific and effective tumor ***,a water-soluble perylene diimide(PDI)cyclophane“Gemini Box”(GBox-1^(4+))is demonstrated as both a hypoxia-responsive photothermal agent and a drug capsule for tumor-specific combination ***,owing to the covalent enclosure of PDI chromophore by double-sided molecular straps,GBox-1^(4+)can significantly stabilize labile PDI radical anions generated through bioreduction at the lesion site of hypoxic tumors,leading to high-efficiency near-infrared photothermal ablation of ***,GBox-1^(4+)can act as a molecular capsule to bind water-insoluble antitumor drugs camptothecin and hydroxycamptothecin in 1:1 host-guest stoichiometry with high affinities,greatly enhancing the water solubility of ***,such drug-loading cyclophane system as a hypoxia-activated photothermal/drug combined therapeutic platform exhibits more effective inhibition of tumor growth than the single treatment under identical *** study significantly extends the application range of host-guest cyclophane systems and opens a promising avenue to structurally uniform combined therapeutic agents against hypoxic tumors with improved specificity.

关键词： hypoxia-responsive photothermal agent cyclophanes host-guest system near-infrared combination therapy

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A semi-immobilized sulfur-rich copolymer backbone with conciliatory polymer skeleton and conductive substrates for high-performance Li-S batteries

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Journal of Energy Chemistry 2023年第6期81卷 510-518,I0012页

作者： Tianpeng Zhang Zihui Song Jinfeng Zhang Wanyuan Jiang Runyue Mao Borui Li Siyang Liu Xigao Jian Fangyuan Hu School of Materials Science and Engineering State Key Laboratory of Fine ChemicalsFrontiers Science Center for Smart Materials Oriented Chemical EngineeringTechnology Innovation Center of High Performance Resin Materials(Liaoning Province)Key Laboratory of Energy Materials and Devices(Liaoning Province)Dalian University of TechnologyDalian 116024LiaoningChina School of Chemical Engineering State Key Laboratory of Fine ChemicalsFrontiers Science Center for Smart Materials Oriented Chemical EngineeringTechnology Innovation Center of High Performance Resin Materials(Liaoning Province)Key Laboratory of Energy Materials and Devices(Liaoning Province)Dalian University of TechnologyDalian 116024LiaoningChina

Sulfur-rich polymers have gained a great deal of attention as the next-generation active materials in lithium-sulfur(Li-S)batteries due to their low cost,environmental compatibility,naturally sulfur uniform dispersion,and distinctive structure covalently bonding with sulfur ***,the poor electrical conductivity and undesirable additional shuttle effect still hinder the commercial application of sulfur-rich ***,we report a flexible semi-immobilization strategy to prepare allylterminated hyperbranched poly(ethyleneimine)-functionalized reduced graphene oxide(A-PEI-EGO)as sulfur-rich copolymer *** semi-immobilization strategy can effectively reconcile the demand for polymer skeleton and conductive substrates through forming quaternary ammonium groups and reducing oxygen-containing functional groups,resulting in enhanced skeleton adsorption capacity and substrate electronic conductivity,***,the stable covalent bonding connection based on polymer molecules(A-PEI)not only completely prevents the additional shuttle effect of lithiation organic molecules and even sulfur-rich oligomers,but provides more inverse vulcanization active *** a result,the as-prepared A-PEI-EGO-S cathodes display an initial discharge capacity of1338 m A h g^(-1)at a rate of 0.1 C and an outstanding cycling stability of 0.046%capacity decay per cycle over 600 *** under 6.2 mg cm^(-2)S-loaded and sparing electrolyte of 6μL mg^(-1),the A-PEI-EGO-S cathode can also achieve a superior cycling performance of 98%capacity retention after 60 cycles,confirming its application potential.

关键词： Li-S batteries Sulfur-rich polymers Semi-immobilization strategy Demand reconciliation Outstanding cycling stability

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Center-concave nanosheets of core-shell WO3@Prussian blue based handheld microchip-devices for ultrasensitive lysine determination

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Chinese Journal of chemical engineering 2024年第12期76卷 21-29页

作者： Huaiyu Song Meiyue Wang Tao Liu Zhengkun Liu Ying Xie Zhenyu Chu Wanqin Jin State Key Laboratory of MaterialseOriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China Quzhou Membrane Material Innovation Institute Nanjing Tech UniversityQuzhou 324000China

Lysine is one of the essential amino acids for human body,and its imbalance is a major cause to anemia,aging process,leukemia cell proliferation and tumor ***,its monitoring is dominative to the prevention the disease progress and guidance to the clinical ***,traditional inhospital detection methods,such as colorimetry and fluorometric,often suffer the disadvantages of high cost and long *** drawbacks show a difficulty in the home-in and dairy monitoring for the lysine regulation in *** this study,we have proposed an ultrasensitive microchipbased portable device to achieve the onsite and precise determination of lysine within only 10 *** microchip was functionalized through constructing a center-concave nanosheet of core-shell WO_(3)@Prussian blue(WO_(3)@PB)to remarkably strengthen the generation and transfer of the detection *** this special architecture,the core WO_(3)nanosheet can be exposed at the center region of this nanocomposite to effectively promote the enzymatic oxidation,while the PB shell enables to strongly reduce the H_(2)O_(2)produced by the enzymatic *** above synergetic effects,a handheld device was designed to support the plug-and-play microchip,which performed an outstanding accuracy for the lysine detection in blood.

关键词： Center-concave nanosheets Core-shell WO3@PB Lysine detection Blood analysis

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Construction of Ni single-atom coordinated with doped N and S elements for mild hydrogenation of methyl acrylate to methyl propionate

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Nano Research 2025年第1期18卷 217-224页

作者： Taolue Sun Chen Jian Gang Wang Hui Zhao Guoliang Zhang Zengxi Li Chunshan Li State Key Laboratory of Mesoscience and Engineering CAS Key Laboratory of Green Process and EngineeringBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Huizhou Institute of Green Energy and Advanced Materials Huizhou 516081China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516081China

Although the nickel-based catalyst is able toexhibit comparative catalytic activity to noble metal formethyl acrylate hydrogenation,it requires strict reactioncondition,which can be improved by regulation ofcoordination *** this study,we constructed akind of Ni single-atom coordinated with N and S(Ni-NSC)through the pyrolysis of organic Ni-based precursors at600℃.The existence and fine structure of Ni single-atom were confirmed by the spherical electron microscopicobservation in combination with the X-ray absorption spectroscopy(XAS)*** addition,the catalytichydrogenation assessment suggested that the as-prepared Ni-NSC catalyst exhibited higher activity and stability than theNi/NSC supported catalyst prepared by incipient wetness impregnation *** remarkable catalytic activity was dueto the high dispersion and density of Ni single-atom and weak adsorption energy of intermediates on these Ni sites.

关键词： methyl acrylate mild hydrogenation Ni single-atom coordination environment adsorption energy

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Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation

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Green Energy & Environment 2025年第1期10卷 203-213页

作者： Muning Chen Jiemei Zhou Jing Ma Weigang Zheng Guanying Dong Xin Li Zhihong Tian Yatao Zhang Jing Wang Yong Wang School of Chemical Engineering Zhengzhou UniversityZhengzhou450001HenanChina State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemical Engineering Nanjing Tech UniversityNanjing211816JiangsuChina Singapore Membrane Technology Centre Nanyang Environment and Water Research InstituteNanyang Technological UniversitySingapore637141Singapore Engineering Research Center for Nanomaterials Henan UniversityKaifeng475004HenanChina State Key Laboratory of Coking Coal Resources Green Exploitation Zhengzhou UniversityZhengzhou 450001China School of Energy and Environment Southeast UniversityNanjing210096JiangsuChina

Mixed matrix membranes(MMMs)have demonstrated significant promise in energy-intensive gas separations by amalgamating the unique properties of fillers with the facile processability of ***,achieving a simultaneous enhancement of permeability and selectivity remains a formidable challenge,due to the difficulty of achieving an optimal match between polymers and *** this study,we incorporate a porous carbon-based zinc oxide composite(C@ZnO)into high-permeability polymers of intrinsic microporosity(PIMs)to fabricate *** dipole–dipole interaction between C@ZnO and PIMs ensures their exceptional compatibility,mitigating the formation of non-selective voids in the resulting ***,C@ZnO with abundant interconnected pores can provide additional low-resistance pathways for gas transport in *** a result,the CO_(2) permeability of the optimized C@ZnO/PIM-1 MMMs is elevated to 13,215 barrer,while the CO_(2)/N_(2) and CO_(2)/CH_(4) selectivity reached 21.5 and 14.4,respectively,substantially surpassing the 2008 Robeson upper ***,molecular simulation results further corroborate that the augmented membrane gas selectivity is attributed to the superior CO_(2) affinity of C@*** summary,we believe that this work not only expands the application of MMMs for gas separation but also heralds a paradigm shift in the application of porous carbon materials.

关键词： Mixed matrix membranes Polymers of intrinsic microporosity CO_(2)separation Porous carbon materials

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Single-atom Zn confined in hierarchical hollow microstructure as an acid/base-resistant microwave absorption materials

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Nano Research 2024年第8期17卷 6785-6794页

作者： Yue Lou Jiao Li Xiaokun Li Zhenyu Zhu Zhan Shi Biao Xu School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China

Developing acid/base-resistant and low-price microwave-absorbing materials with lighter weight is highly desired for practical applications in extreme ***,we demonstrate the successful synthesis of the N-doped porous carbon(NC)material with hierarchical pore structure by the spray pyrolysis *** large specific surface area(SBET=707.53 m^(2)·g^(−1))of materials enables multiple scattering of incident electromagnetic waves,and N doping greatly enhances the electrical conductivity of the ***,single-atom Zn can adjust the local electronic structure of adjacent sites such as carbon and nitrogen atoms,induce the center of polarization,and thus change the dielectric and electronic properties of the host *** porous carbon coating of single-atom Zn avoids the deterioration of electromagnetic parameters caused by the accumulation of magnetic particles under high-temperature *** the same time,they can also be used in various complex environments,such as acidic and basic ***,NC-1000,with high surface area,low density,and good chemical stability,obtained a minimum reflection loss(RLmin)of−50.5 dB and an effective absorption bandwidth(EAB)exceeding 5.1 GHz at the thickness of 1.9 *** soaking in the strong acid and base solution,the electromagnetic wave absorption performance of the material decreased by<15%.Widely available raw materials and a simple preparation scheme are expected to expedite industrial mass production for this novel type of materials.

关键词： hierarchical hollow microstructure microwave absorption metal-organic framework(MOF) impedance matching singleatom Zn acid/base-resistant

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Recent advances in crystal phase induced surface-enhanced Raman scattering

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Chinese chemical Letters 2024年第9期35卷 111-118页

作者： Ce Liang Qiuhui Sun Adel Al-Salihy Mengxin Chen Ping Xu MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China

Surface-enhanced Raman scattering(SERS)spectroscopy has emerged as a powerful analytical technique for detecting and identifying trace chemical and biological *** this review,we present an indepth discussion of recent advances in the field of crystal phase manipulation to achieve exceptional SERS *** on transition metal dichalcogenides,(hydr)oxides,and carbides as exemplary materials,we illustrate the pivotal role of crystal phase regulation in enhancing SERS *** exploring the correlation between crystal phases and SERS responses,we uncover the underlying principles behind these strategies,thereby shedding light on their potential for future SERS *** addressing the current challenges and limitations,we also propose the prospects of the crystal phase strategy to facilitate the development of cutting-edge SERS-based sensing technologies.

关键词： Surface-enhanced Raman scattering Crystal phase manipulation Transition metal dichalcogenides Transition metal oxides Transition metal carbides

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