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Promoting effect of d-band center and in-situ precipitation strategy on sulfur evolution reaction

Journal of Energy Chemistry 2025年第5期104卷 740-748页

作者： Jun Pu Yun Tan Jiasen Yin Zihan Shen Shoujie Liu Kai Zhang Lei Zhou Yagang Yao Key Laboratory of Functional Molecular Solids Ministry of EducationAnhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002AnhuiChina National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093JiangsuChina State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Materials Science and Engineering Anhui UniversityHefei 230601AnhuiChina School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Department of Electrical Engineering Eindhoven University of TechnologyEindhoven MB 5600the Netherlands

The slow conversion of polyphase in lithium-sulfur(Li-S)batteries not only intensifies the shuttle effect of lithium polysulfides(LiPSs),but also causes the continuous accumulation of inactive sulfur species,resulting in rapid capacity attenuation and sluggish dynamic ***,the promoting effect of atomic interface stress on sulfur reaction was investigated via CoFe-CoFe_(2)O_(4)heterogeneous nanosheets with a cavity *** strain force induced by the in-situ precipitation of Co Fe bimetallic alloy in oxide matrix increased the d-band center,which was conducive to the interaction between catalyst and Li *** sulfur cathode based on this two-dimensional(2D)nanosheet design showed an extremely high capacity of 751 mAh g^(-1)at 4 *** with a sulfur loading of 5.55 mg cm^(-2),its area capacity was still as high as 7.15 mAh cm^(-2).Meanwhile,the enhanced stability greatly improved the practical potential of Li-S batteries.

关键词： 2D nanosheets In-situ precipitation Strain effect D-band center Li-S batteries

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Photonic crystals constructed by isostructural metal-organic framework films

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Nano Research 2023年第7期16卷 9569-9576页

作者： Zhihuan Li Jianxi Liu Haoze Wu Jiao Tang Zhongyang Li Yadong Xu Feng Zhou Weimin Liu State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Electronic Information School Wuhan UniversityWuhan 430072China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Metal-organic framework(MOF)-on-MOF structure allows stacking various types of MOFs with different lattice constants for molecule sieving or ***,the multilayered MOFs-based optical devices have incoherent interference due to the lattice-mismatch at the interface and refractive index(RI)*** paper reports isostructural MOFs-based photonic crystals(PCs)designed by stacking Bragg bilayers of lattice-matched MOFs thin films through a layer-by-layer assembly *** nanoparticles(NPs)were homogenously encapsulated in some layers of the MOFs(HKUST-1@NPs)to tune their intrinsic RI during the spraying coating *** isostructural MOFs-based PCs were constructed on a large scale by sequentially spraying coating the low RI layer of HKUST-1 and high RI layer of HKUST-1@NPs to form the desired number of Bragg bilayers.X-ray photoelectron spectroscopy(XPS)depth profiling proved the Bragg bilayers and the homogenous encapsulation of nanomaterials in certain layers of *** of the PCs was tailored by the thickness and RI of the Bragg bilayers,which had a great consistent with finite difference time domain(FDTD)***,reflectivity of the isostructural MOFs-based PCs was up to 96%.We demonstrated high detection sensitivity for chemical sensing on the PCs,which could be advanced by encapsulating different types of nanomaterials and designing wide-band isostructural MOFs-based PCs.

关键词： metal-organic frameworks(MOFs) MOF on MOF liquid phase epitaxy(LPE) hybrid photonic crystals(PCs) specific sensing

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Strain engineering of anisotropic light-matter interactions in onedimensional P-P chain of SiP_(2)

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Nano Research 2022年第8期15卷 7378-7383页

作者： Fanghua Cheng Junwei Huang Feng Qin Ling Zhou Xueting Dai Xiangyu Bi Caorong Zhang Zeya Li Ming Tang Caiyu Qiu Yangfan Lu Huiyang Gou Hongtao Yuan National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied SciencesNanjing UniversityNanjing 210000China College of Materials Science and Engineering National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400030China Center for High Pressure Science and Technology Advanced Research Beijing 100094China

Strain engineering can serve as a powerful technique for modulating the exotic properties arising from the atomic structure of *** have been demonstrated that one-dimensional(1D)structure can serve as a great platform for modulating electronic band structure and phonon dispersion via strain ***,in a van der Waals material silicon diphosphide(SiP_(2)),quasi-1D zigzag phosphorus–phosphorus(P–P)chains are embedded inside the crystal structure,and can show unique phonon vibration modes and realize quasi-1D *** those optical properties by the atom displacements via strain engineering is of great interest in understanding underlying mechanism of such P–P chains,however,which remains ***,we demonstrate the strain engineering of Raman and photoluminescence(PL)spectra in quasi-1D P–P chains and resulting in anisotropic manipulation in SiP_(2).We find that the phonon frequencies of SiP_(2)in Raman spectra linearly evolve with a uniaxial strain along/perpendicular to the quasi-1D P–P chain ***,by applying tensile strain along the P–P chains,the band gap energy of strained SiP_(2)can significantly decrease with a tunable value of~55 *** on arsenic(As)element doping into SiP_(2),the strain-induced redshifts of phonon frequencies decrease,indicating the stiffening of the phonon vibration with the increased arsenic doping *** results provide an opportunity for strain engineering of the light–matter interactions in the quasi-1D P–P chains of SiP_(2)crystal for potential optical applications.

关键词： strain engineering silicon diphosphide Raman photoluminescence

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Boosting fast interfacial Li^(+)transport in solid-state Li metal batteries via ultrathin Al buffer layer

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Nano Research 2023年第5期16卷 6825-6832页

作者： Shengnan Zhang Qing Sun Guangmei Hou Jun Cheng Linna Dai Jianwei Li Lijie Ci Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials(Ministry of Education) Research Center for Carbon NanomaterialsSchool of Materials Science and EngineeringShandong UniversityJinan 250061China School of Light Industry and Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Lab of Advanced Welding and Joining School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China School of Science Hubei University of TechnologyWuhan 430068China University of Health and Rehabilitation Sciences Qingdao266071China

Na superionic conductor(NASICON)-type Li_(1.5)Al_(0.5)Ge_(0.5)P_(3)O_(12)(LAGP)solid state electrolytes(SSEs)have attracted significant interests thanks to the prominent ionic conductivity(>10^(–4)S·cm^(–1))at room temperature and superb stability in ***,its application has been hindered by the lithium dendrites and the intrinsic interfacial instability of LAGP towards metallic Li,***,by magnetron sputtering(MS),an ultrathin Al film is deposited on the surface of the LAGP pellet(Al-LAGP).By in-situ alloying reaction,the spontaneously formed LiAl buffer layer inhibits the side reaction between LAGP SSEs and Li metal,induces the uniform distribution of interfacial electric field as *** functional theory(DFT)calculations demonstrate that the LiAl alloy surface promotes the diffusion of lithium atoms due to the lower energy barrier,thereby inhibiting the formation of lithium ***,the Li/Al-LAGP-Al/Li symmetric cells show a low resistance of 210Ωand a durable lifespan over 1,200 h at a high current density of 0.1 mA·cm^(-2).Assembled all solid state lithium metal batteries(ASSLMBs)with LiFePO_(4)(LFP)cathode significantly improve cycle stability and rate performance,proving a promising stabilization strategy towards the NASIOCN type electrolyte/anode interface in solid state Li metal batteries.

关键词： Li_(1.5)Al_(0.5)Ge_(0.5)P_(3)O_(12) solid-state battery Li+transport interfacial modification Al buffer

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Biomimetic Surface Texturing with Tunable Stimulus-Responsive Friction Anisotropy

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Journal of Bionic engineering 2024年第6期21卷 2942-2954页

作者： Khan Rajib Hossain Yuanhua Zheng Xinle Yao Haiyuan Hu Zhongying Ji Xiaolong Wang State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing100039China Department of Orthodontics Gansu Provincial HospitalLanzhou730000China School of Chemistry and Chemical Engineering Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous RegionShihezi UniversityShihezi832003China

Micro-and nano-structures are intentionally incorporated into various biological surfaces,such as fish scales,snakeskin,and burr-covered plant leaves,to enhance their interactions with other *** mechanical anisotropy affects friction,interlocking,propulsion,and mobility on *** study investigates a novel method for developing a robust,stratified,soft,lubricating coating on a surface.3-Methacryloyloxypropyl-trimethoxysilane(MPS)is a cohesive adhesion promoter that functions by infiltrating Polydimethylsiloxane(PDMS)silicone elastomers to maintain low friction levels and high mechanical load-bearing *** makes it easier for organic and inorganic materials to adhere to the surface of the initiator layer P(AAm-co-AA-co-PDMS/Fe).We investigate how the tough hydrogel layer of the module impacts the lubricating ability of the multilayer coating when the tough hydrogel layer of the module adheres to the bio-based polyurethane *** 1,000 sliding cycles with a 1 N load,the improved PDMS’s Coefficient of Friction(COF)remains steady and low(COF<0.81).We recommend using the suggested structure and a standard set of optimal variables to enhance the functional efficiency of such *** conclusion,we have demonstrated the optimal simulation of these parameters for stimulus-responsive,adjustable surface systems.

关键词： Biomimetic surface Stimuli-responsive Friction anisotropy 3D printing Coefficient of friction

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Super wear-resistant WB_(4)–B super-hard ceramic by in-situ formed lubrication film in high moisture

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Journal of Advanced Ceramics 2024年第12期13卷 1955-1964页

作者： Guixin Hou Wenyuan Chen Qichun Sun Juanjuan Chen Jiao Chen Hui Tan Jun Cheng Shengyu Zhu Jun Yang Weimin Liu State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai Yantai 264006China

Only a few materials demonstrate ultralow wear performance in specific fragile *** propose a selfadaptive wear strategy to achieve excellent wear resistance at high moisture contents through a super-hard substrate and an in situ lubrication *** prepare“self-adaptive”super wear-resistant WB_(4)–B ceramic with a wear rate of 1×10^(−7)mm^(3)·N−1·m^(−1)in dry environments,which relies on the superhardness of WB_(4)and B dual phases to maintain microstructural *** wear rate decreases further to 1×10^(−8)mm^(3)·N−1·m^(−1),accompanied by a low friction coefficient of approximately 0.1,due to the in situ H_(3)BO_(3)/WO_(3)lubrication film in the moist *** addition,this excellent wear resistance performance remains stable under a high contact stress of 2.81 GPa and long friction cycles of 1×10^(5).The excellent wear resistance of WB_(4)–B ceramic,as well as their excellent adaptability under harsh conditions,improves component performance and reliability in environments that are often considered challenging for traditional materials.

关键词： ultralow wear super-hard WB_(4) lubricating film tribo-pair

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Effective CO_(2)activation of enriched oxygen vacancies for photothermal CO_(2)methanation

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Journal of materials science & Technology 2024年第22期189卷 203-210页

作者： Peipei Du Guoqiang Deng Zhonghua Li Junchuan Sun Lu Wang Yongqiang Yang Jun Wang Yaguang Li Xiaoming Xu Yuanming Zhang Wangxi Liu Gang Liu Zhigang Zou Zhaosheng Li Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Jiangsu Key Laboratory of Nano Technology Nanjing UniversityNanjing 210093China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Science and Engineering The Chinese University of Hong KongShenzhen 518172China Research Center for Solar Driven Carbon Neutrality Engineering Research Center of Zero-carbon Energy Buildings and Measurement TechniquesMinistry of EducationThe College of Physics Science and TechnologyInstitute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China

Oxygen vacancies have been widely concerned with the facilitation effects of CO_(2)activation for CO_(2)***,little attention has been paid to the generation of active intermediate species induced by enriched oxygen ***,we discovered that CeNiO_(3−δ)catalyst enriched oxygen vacancies can efficiently activate CO_(2)and realize high activity for photothermal CO_(2)*** situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)proved that oxygen vacancies are beneficial to the formation of reactive intermediate species of polydentate carbonate over CeNiO_(3−δ),which is crucial for efficient CO_(2)*** results revealed mechanistic insights into how effective CO_(2)activation induced by oxygen vacancies can be manipulated by adjusting the adsorption intermediate species.

关键词： Oxygen vacancies CO_(2)activation Active intermediate species Photo-thermal CO_(2)methanation CeNiO_(3)

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In situ observation of the pseudoelasticity of twin boundary

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Journal of materials science & Technology 2023年第35期166卷 200-207页

作者： Jingpeng Hou Keliang Qiu Fengshi Li Zhenyu Yang Yonghai Yue Yongjun Tian Zhongchang Wang Lin Guo School of Chemistry Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing 100191China Institute of Solid Mechanics School of Aeronautics Sciences and EngineeringBeihang UniversityBeijing 100191China Center for High Pressure Science State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China International Iberian Nanotechnology Laboratory(INL) Braga 4715-330Portugal

Twin boundary(TB)is a special and fundamental internal interface that plays a key role in altering the mechanical and physical properties of ***,the atomistic deformation mechanism of TB re-mains under debate,of which the most concerned aspect is how TB would affect the mechanical strength and plasticity of a ***,we introduce our new discovery that the pseudoelastic strain of a TB can recover with decomposition and escape of pile-up dislocations,demonstrated by imposing a sponta-neous pseudoelastic deformation with recoverable plastic bending strain up to 5.1%on a *** found that the steps on the curved TB gradually annihilated during the migration of the TB,which was in-duced by the slip of decomposition dislocations on the *** TB not only provides local strain harden-ing through interaction with dislocations during the loading stage but also acts as a channel for the fast movement of decomposition dislocations during the recovery ***,the TB can maintain excellent pseudoelasticity under a multicycle bending test,which may play an important role in improving the fa-tigue resistance of *** findings could open up a new avenue for optimizing the mechanical properties of materials by manipulating their twin boundaries at the nanoscale.

关键词： Twin boundary Pseudoelasticity Migration Dislocation-twin boundary interaction

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A series of heterometallic 3d-4f polyoxometalates as single-molecule magnets

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Chinese Chemical Letters 2023年第3期34卷 438-441页

作者： Shurong Li Zhenzhang Weng Linpeng Jiang Rongjia Wei Haifeng Su Lasheng Long Lansun Zheng Xiangjian Kong Collaborative Innovation Center of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China College of Chemistry and Materials Science Jinan UniversityGuangzhou 510632China

Three sandwich-like[Ln_(2)Fe_(2)(B-α-FeW_9O_(34))_(2)]^(10-) clusters(Ln_(2)Fe_(4),Ln=Dy(1),Ho(2),and Y(3)) were obtained by reacting Na_9[B-α-SbW_9O_(33)],Ln_(2)O_(3),FeCl_(3)·6H_(2)O and KH_(2)PO_(4).The[B-α-FeW_9O_(34)]^(11-) units were formed via the in situ conversion of lacunary polyoxometalates(POM)[B-α-SbW_9O_(33)]^(9-)and the Ln^(3+)ions were generated from the slow dissolution of Ln_(2)O_(3),both of which play important roles in the synthesis of Ln_(2)Fe_(4).Ln_(2)Fe_(4) is the first 3d-4f cluster assembled from d-metal heteroatom-containing *** Dy_(2)Fe_(4) cluster exhibits single-molecule magnet properties with an 80 K energy barrier in an optimal DC *** voltammetry tests and controlled-potential coulometry experiments show that the polyoxometalate Fe heteroatom in clusters 1-3 is also electrochemically active.

关键词： Polyoxometalates 3d-4f Cluster Lanthanide Single-molecule magnet

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Electrochemical imaging uncovers the heterogeneity of HER activity by sulfur vacancies in molybdenum disulfide monolayer

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Chinese Chemical Letters 2025年第3期36卷 212-216页

作者： Xiaoli Deng Xiangchao Lu Yang Cao Qianjin Chen Key Laboratory of Science and Technology of Eco-Textile Ministry of EducationCollege of Chemistry and Chemical EngineeringDonghua UniversityShanghai 201620China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

engineering of sulfur vacancies on the basal plane of molybdenum disulfide(MoS_(2))may provide effective way to promote the catalytic *** the sulfur vacancy density has previously been correlated with catalytic activity,direct evidence that vacancies create surfaces with enhanced electrocatalytic activity is still ***,we used a combination of scanning electrochemical cell microscopy(SECCM)with submicrometer resolution and photoluminescence imaging to show that sulfur vacancies in monolayer MoS_(2)microflakes lead to significant spatial heterogeneity in the electrochemical hydrogen evolution reaction(HER)***,colocated multi-microscopy unveils that regions with superior HER activity are associated with sulfur vacancy *** the vacancy density increases,the triangular flakes display significantly enhanced and spatially uniformly distributed electrocatalytic *** multi-microscopic imaging approach using SECCM convincingly highlights the spatial heterogeneity of electrocatalytic activity across monolayer MoS_(2)by sulfur vacancy engineering.

关键词： Nanoelectrochemistry Scanning electrochemical cell microscopy MoS_(2)monolayers Hydrogen evolution reaction Sulfur vacancy

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