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Frontiers of Materials science 2024年第2期18卷 61-74页

作者： Jie Meng Hongmei Liu Sainan Zhang Baogui Ye Min feng Daoai Wang School of chemistry and Chemical engineering Lanzhou Jiaotong UniversityLanzhou 730000China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China qingdao Centerof Resource chemistry and New Materials Qingdao 266100China Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai Yantai 265503China

The solar-to-hydrogen conversion using the photoelectrochemical(PEC)method is a practical approach to producing clean ***,it relies on the availability of photocatalyst *** this work,a novel photocatalyst comprising molybdenum telluride quantum dots(MoTe_(2) QDs)-modified titanium dioxide nanorods(TiO_(2) NRs)was prepared for the enhancement of the PEC water splitting performance after combination with a Al_(2)O_(3) layer using the atomic layer deposition(ALD)***_(2) QDs were initially prepared,and then they were loaded onto TiO_(2) NRs using a warm water bath-based heating *** a layer of Al_(2)O_(3) was deposited onto resulted TiO_(2) NRs/MoTe_(2) QDs,the composite TiO_(2) NRs/MoTe_(2) QDs/Al_(2)O_(3) was finally *** simulated sunlight(100 mW·cm^(-2)),such a composite exhibited a maximum photocurrent density of 2.25 mA·cm^(-2) at 1.23 V(versus RHE)and an incident photon-to-electron conversion efficiency of 69.88%at 380 nm,which are 4.33 and 6.66 times those of pure TiO_(2) NRs,***,the composite photocatalyst fabricated in this work may have promising application in the field of PEC water splitting,solarcells andotherphotocatalyticdevices.

关键词： MoTe_(2)quantum dot TiO_(2)nanorod Al_(2)O_(3) atomic layer deposition photoelectrochemistry

Absorption properties and mechanism of lightweight and broadband electromagnetic wave-absorbing porous carbon by the swelling treatment

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1701-1712页

作者： Jianghao Wen Di Lan Yiqun Wang Lianggui Ren Ailing feng Zirui Jia Guanglei Wu College of Materials and chemistry&Chemical engineering Chengdu University of TechnologyChengdu 610059China School of Materials science and engineering Hubei University of Automotive TechnologyShiyan 442002China institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China institute of Physics&Optoelectronics technology Baoji University of Arts and SciencesBaoji 721016China

Bioderived carbon materials have garnered considerable interest in the fields of microwave absorption and shielding due to their reproducibility and environmental *** this study,KOH was evenly distributed on biomass Tremella using the swelling induction method,leading to the preparation of a three-dimensional network-structured hierarchical porous carbon(HPC)through *** achieved microwave absorption intensity is robust at-47.34 dB with a thin thickness of 2.1 ***,the widest effective absorption bandwidth,reaching 7.0 GHz(11–18 GHz),is attained at a matching thickness of 2.2 *** exceptional broadband and reflection loss performance are attributed to the 3D porous networks,interface effects,carbon network defects,and dipole *** has outstanding absorption characteristics due to its excellent impedance matching and high attenuation *** uniform pore structures considerably optimize the impedance-matching performance of the material,while the abundance of interfaces and defects enhances the dielectric loss,thereby improving the attenuation ***,the impact of carbonization temperature and swelling rate on microwave absorption performance was systematically *** research presents a strategy for preparing absorbing materials using biomass-derived HPC,showcasing considerable potential in the field of electromagnetic wave absorption.

关键词： biomass hierarchical porous carbon dielectric loss electromagnetic wave absorption

A molecular-Sieving Interphase Towards Low-Concentrated Aqueous Sodium-Ion Batteries

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Nano-Micro Letters 2024年第8期16卷 51-63页

作者： Tingting Liu Han Wu Hao Wang Yiran Jiao Xiaofan du Jinzhi Wang Guangying Fu Yaojian Zhang Jingwen Zhao Guanglei Cui qingdao Industrial Energy Storage Research institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101People’s Republic of China Center of Materials science and Optoelectronics engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Chemical engineering and Advanced Materials The University of AdelaideAdelaideSA 5005Australia Shandong Energy institute Qingdao 266101People’s Republic of China qingdao New Energy Shandong Laboratory Qingdao 266101People’s Republic of China

Aqueous sodium-ion batteries are known for poor rechargeability because of the competitive water decomposition reactions and the high electrode *** have been reported by saltconcentrated and organic-hybridized electrolyte designs,however,at the expense of cost and ***,we report the prolonged cycling of ASIBs in routine dilute electrolytes by employing artificial electrode coatings consisting of NaX zeolite and NaOH-neutralized perfluorinated sulfonic *** as-formed composite interphase exhibits a molecularsieving effect jointly played by zeolite channels and size-shrunken ionic domains in the polymer matrix,which enables high rejection of hydrated Na^(+)ions while allowing fast dehydrated Na^(+)*** this coating to electrode surfaces expands the electrochemical window of a practically feasible 2 mol kg^(-1) sodium trifluoromethanesulfonate aqueous electrolyte to 2.70 V and affords Na_(2)MnFe(CN)_(6)//NaTi_(2)(PO_(4))_(3) full cells with an unprecedented cycling stability of 94.9%capacity retention after 200 cycles at 1 *** with emerging electrolyte modifications,this molecular-sieving interphase brings amplified benefits in long-term operation of ASIBs.

关键词： molecular sieving effect Electrode coatings Aqueous sodium ion batteries Dilute aqueous electrolytes

Carbon steel anticorrosion performance and mechanism of sodium lignosulfonate

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Rare Metals 2024年第1期43卷 356-365页

作者： Bo-Kai Liao Rui-Xuan Quan Ping-Xian feng Huan Wang Wei Wang Li Niu School of chemistry and Chemical engineering Guangzhou Key Laboratory of Sensing Materials and DevicesJoint Institute of Guangzhou University and Institute of Corrosion Science and TechnologyGuangzhou UniversityGuangzhou 510006China

Lignin is a typical biological macromolecule with a three-dimensional network structure and abundant functional groups. It has excellent ionic complexation ability and amphiphilic molecular structure *** this study, the carbon steel anticorrosion performance of sodium lignosulfonate(SLS) in an acid solution was evaluated using the weight loss method, electrochemical measurements, scanning vibration electrode technique(SVET), and surface characterization methods. SLS exhibited excellent corrosion inhibition efficiency for Q235carbon steel in 1 mol·L^(-1) HCl, reaching a maximum value of 98%. A low SLS concentration of 20 mg·L^(-1) resulted in the maximum corrosion inhibition efficiency, which remained nearly constant at higher SLS *** SVET test demonstrated that the formation of an SLS adsorption film can impede corrosion. This study confirms the significance of the application of green biomass resources in the field of metal corrosion protection and green functional materials.

关键词： Lignin Sodium lignosulfonate Corrosion inhibitor Carbon Steel

Effect of Phase Separation Size on the Properties of Self-healing Elastomer

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Chinese Journal of Polymer science 2024年第6期42卷 798-804页

作者： Jun Xu Lei Zhu Xian-Qi feng Cong sui Wen-Peng Zhao Shou-Ke Yan School of Chemical engineering Qingdao University of Science&TechnologyQingdao266042China College of engineering Yanching institute of TechnologyLangfang065210China Key Laboratory of Rubber-plastics Qingdao University of Science&TechnologyQingdao266042China State Key Laboratory of Chemical Resource engineering Beijing University of Chemical TechnologyBeijing100029China

Regulation of phase structure has been recognized as one of the most effective ways to fabricate self-healing polymers with high mechanical *** mechanical properties of the resultant polymers are certainly affected by the size of separated phase ***,the study on this aspect is absence,because it can hardly exclude the influence of variation in monomer proportion required for tuning the separated phase ***,we report the first study on tuning the phase size through reversible addition-fragmentation chain transfer(RAFT)polymerization without changing the proportion of *** expected,the size of separated phase has been successfully mediated from 15 nm to 9 nm by tuning the molecular weight of the chain transfer *** is found that the mechanical strength and the self-healing efficiency of the resultant polymers increase simultaneously with the decrease of phase *** study on the formation kinetics of hydrogen bonds reveals that the decrease of phase size can facilitate the re-bonding rate of hydrogen bonds,even if the migration of polymer chains is restricted.

关键词： Self-healing polymers Phase separation Reversible addition-fragmentation chain transfer

Bifunctional core–shell co-catalyst for boosting photocatalytic CO_(2) reduction to CH_(4)

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Nano Research 2024年第3期17卷 1259-1266页

作者： Fangxu Dai Mingming Zhang Jishu Han Zhenjiang Li Shouhua feng Jun Xing Lei Wang Key Laboratory of Eco-chemical engineering Ministry of EducationCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China College of Materials science and engineering Qingdao University of Science and TechnologyQingdao 266042China College of Environment and Safety engineering Qingdao University of Science and TechnologyShandong Engineering Research Center for Marine Environment Corrosion and Safety ProtectionQingdao 266042China

Solar-light-driven CO_(2) reduction CO to CH_(4) and C2H6 is a complex process involving multiple elementary reactions and energy ***,achieving high CH_(4) activity and selectivity remains a significant ***,we integrate bifunctional Cu2O and Cu-MOF(MOF=metal-organic framework)core–shell co-catalysts(Cu2O@Cu-MOF)with semiconductor TiO_(2).Experiments and theoretical calculations demonstrate that Cu2O(Cu+facilitates charge separation)and Cu-MOF(Cu2+improves the CO_(2) adsorption and activation)in the core–shell structure have a synergistic effect on photocatalytic CO_(2) reduction,reducing the formation barrier of the key intermediate*COOH and**** photocatalyst exhibits high CH_(4) yield(366.0μmol·g^(-1)·h^(-1)),efficient electron transfer(3283μmol·g^(-1)·h^(-1))and hydrocarbon selectivity(95.5%),which represents the highest activity of Cu-MOF-based catalysts in photocatalytic CO_(2) reduction *** work provides a strategy for designing efficient photocatalysts from the perspective of precise regulation of components.

关键词： bifunctional co-catalyst core–shell photocatalytic CO_(2)reduction

Ionic liquids inhibit the dynamic transition fromα-helices toβ-sheets in peptides

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Fundamental Research 2024年第4期4卷 777-784页

作者： Ju Liu Yanlei Wang feng Huo Hongyan He Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Mesoscience and EngineeringCAS Key Laboratory of Green Process and EngineeringInstituteof Process EngineeringChineseAcademyof SciencesBeijing100190China Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial TechnologyHenan UniversityZhengzhou 450000China university of Chinese Academyof sciences Beijing100049China

Abnormalities in the transition betweenα-helices andβ-sheets(α-βtransition)may lead to devastating neurodegenerative diseases,such as Parkinson's syndrome and Alzheimer's *** liquids(ILs)are potential drugs for targeted therapies against these diseases because of their excellent bioactivity and designability of ***,the mechanism through which ILs regulate the aα-βtransition remains ***,a combination of GPU-accelerated microsecond molecular dynamics simulations,correlation analysis,and machine learning was used to probe the dynamicalα-βtransition process induced by ILs of 1-alkyl-3-methylimidazolium chloride([C_(n)mim]cl)and its molecular ***,the cation of [C_(n)mim]+in ILs can spontaneously insert into the peptides as free ions(n≤10)and clusters(n≥11).such insertion can significantly inhibit theα-β,transition and the inhibiting ability for the clusters is more significant than that of free ions,where[Ciomim]+and[C_(12)mim]+can reduce the maximumβ-sheet content of the peptide by 18.5% and 44.9%,***,the correlation analysis and machine learning method were used to develop a predictive model accounting for the influencing factors on theα-βtransition,which could accurately predict the effect of ILs on theα-β***,these quantitative results may not only deepen the understanding of the role of ILs in theα-βtransition but also guide the development of the IL-based treatments for related diseases.

关键词： α-βtransition moleculardynamics simulation lonic liquids Machine learning Membrane channel protein

A review of ultra-high temperature heat-resistant energetic materials

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Defence technology（防务技术） 2024年第8期38卷 33-57页

作者： Rongzheng Zhang Yuangang Xu feng Yang Pengcheng Wang Qiuhan Lin Hui Huang Ming Lu School of chemistry and Chemical engineering Nanjing University of Science and TechnologyNanjing 210094China institute of Chemical Materials China Academy of Engineering PhysicsMianyang 621900China

Heat-resistant energetic materials refer to a type of energetic materials that possess a high melting point,high stability and operational safety. By studying the structures of these energetic materials has showed that the thermal stability can be enhanced by introducing amino groups to form intra/inter-molecular hydrogen bonds, constructing conjugate systems and designing symmetrical structures. This article aims to review the physical and chemical properties of ultra-high temperature heat-resistant energetic compounds and provide valuable theoretical insights for the preparation of ultra-high temperature heatresistant energetic materials. We also analyze the selected 20 heat-resistant energetic materials with decomposition temperatures higher than 350℃, serving as templates for the synthesis of various highperformance heat-resistant energetic materials.

关键词： Heat-resistant energetic materials Organic synthesis Conjugated Hydrogen bond Symmetrical structure Stabilization

Inimitable 3D pyrolytic branched hollow architecture with multi-scale conductive network for microwave absorption

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Journal of Materials science & technology 2024年第6期173卷 170-180页

作者： Jiajun Li Qianqian Zhu Jiahui Zhu Yuhang Cheng Zirui Jia feng Lu Chao Wang Guanglei Wu institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China College of chemistry and Chemical engineering Qingdao UniversityQingdao266071China Technical Center of qingdao Customs Qingdao266002China

To solve the electromagnetic pollution problem,the reasonable structure design and component control of the electromagnetic absorber is *** this work,three-dimensional(3D)pyrolytic branched hollow architecture carbon PBHAC/MoS_(2)composites were prepared via a hydrothermal and calcination two-step *** narrow-gap nano-size MoS_(2)acquired after vulcanization and micro-size 3D branched carbon skeleton PBHAC possess intensified conduction ***,the presence of potential differences between different phases creates a space charge region at the heterogeneous interface,resulting in strong interfacial *** resulting 3D branched hollow PBHAC/MoS_(2)composites exhibit optimized impedance matching and multiple loss ***,the 3D branched hollow carbon PBHAC/MoS_(2)composites have the best electromagnetic wave(EMW)absorption *** minimum reflection loss(RLmin)is-57.8 dB at 1.93 mm and the maximum effective absorption bandwidth(EAB_(max))is 6.08 GHz at 2 mm,which indicates the excellent EMW absorption performance of the ***,this composite is expected to be a microwave absorber with the characteristics of“thin,light,wide,and strong”.

关键词： Dielectric loss MoS_(2) Impedance matching Schottky barrier Microwave absorption

Near-zero-adhesion-enabled intact wafer-scale resist-transfer printing for high-fidelity nanofabrication on arbitrary substrates

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International Journal of Extreme Manufacturing 2024年第1期6卷 313-326页

作者： Zhiwen Shu Bo feng Peng Liu Lei Chen Huikang Liang Yiqin Chen Jianwu Yu Huigao duan College of Mechanical and Vehicle engineering National Engineering Research Centre for High Efficiency GrindingHunan UniversityChangsha 410082People’s Republic of China Greater Bay Area institute for Innovation Hunan UniversityGuangzhou 511300People’s Republic of China School of Mechanical engineering Hunan University of Science and TechnologyXiangtan 411201People’s Republic of China Shenzhen Research institute Hunan UniversityShenzhen 518000People’s Republic of China

There is an urgent need for novel processes that can integrate different functional nanostructures onto specific substrates,so as to meet the fast-growing need for broad applications in nanoelectronics,nanophotonics,and fexible *** direct-lithography methods are difficult to use on fexible,nonplanar,and biocompatible ***,this fabrication is usually accomplished by nanotransfer ***,large-scale integration of multiscale nanostructures with unconventional substrates remains challenging because fabrication yields and quality are often limited by the resolution,uniformity,adhesivity,and integrity of the nanostructures formed by direct ***,we proposed a resist-based transfer strategy enabled by near-zero adhesion,which was achieved by molecular modification to attain a critical surface energy *** approach enabled the intact transfer of wafer-scale,ultrathin-resist nanofilms onto arbitrary substrates with mitigated cracking and wrinkling,thereby facilitating the in situ fabrication of nanostructures for functional *** this approach,fabrication of three-dimensional-stacked multilayer structures with enhanced functionalities,nanoplasmonic structures with~10 nm resolution,and MoS2-based devices with excellent performance was demonstrated on specific *** results collectively demonstrated the high stability,reliability,and throughput of our strategy for optical and electronic device applications.

关键词： resist-based transfer printing near-zero adhesion critical surface energy wafer-scale nanofabrication in situ fabrication optoelectronic devices