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Deciphering Water Oxidation Catalysts:The Dominant Role of Surface Chemistry over Reconstruction Degree in Activity Promotion

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Nano-Micro Letters 2025年第3期17卷 340-354页

作者： Li An Jianyi Li Yuanmiao Sun Jiamin Zhu Justin Zhu Yeow Seow Hong Zhang Nan Zhang Pinxian Xi Zhichuan J.Xu Chun‑Hua Yan State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceFrontiers Science Center for Rare IsotopesCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000People’s Republic of China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Faculty of Materials Science and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Key Laboratory of Electromagnetic Materials and Devices National Center for International Research On Photoelectric and Energy MaterialsSchool of Materials and EnergyElectron Microscopy CenterYunnan UniversityKunming 650091People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU‑HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871People’s Republic of China

Water splitting hinges crucially on the availability of electrocatalysts for the oxygen evolution *** surface reconstruction has been widely observed in perovskite catalysts,and the reconstruction degree has been often correlated with the activity ***,a systematic study on the roles of Fe substitution in activation of perovskite LaNiO_(3)is *** substituting Fe content influences both current change tendency and surface reconstruction ***_(0.9)Fe_(0.1)O_(3)is found exhibiting a volcano-peak intrinsic activity in both pristine and reconstructed among all substituted perovskites in the LaNi_(1-x)Fe_(x)O_(3)(x=0.00,0.10,0.25,0.50,0.75,1.00)*** reconstructed LaNi_(0.9)Fe_(0.1)O_(3)shows a higher intrinsic activity than most reported NiFe-based ***,density functional theory calculations reveal that Fe substitution can lower the O 2p level,which thus stabilize lattice oxygen in LaNi0.9Fe0.1O3 and ensure its long-term ***,it is vital interesting that activity of the reconstructed catalysts relied more on the surface chemistry rather than the reconstruction *** effect of Fe on the degree of surface reconstruction of the perovskite is decoupled from that on its activity enhancement after surface *** finding showcases the importance to customize the surface chemistry of reconstructed catalysts for water oxidation.

关键词： Oxygen evolution reaction Perovskite oxides Doping Activation and reconstruction

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Thermodynamic and experimental evaluation of the sustainable recycling of magnesium alloy scrap by vacuum distillation based on vapor-liquid equilibrium

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Journal of Magnesium and Alloys 2025年第1期13卷 283-295页

作者： Lipeng Wang Dong Liang Yang Tian Jianxue Chai Rui Li Shuji Wu Bin Yang Baoqiang Xu Yong Deng Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province Kunming University of Science and TechnologyKunmingChina State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunmingChina Engineering Research Center of Aluminum Industry of Yunnan Province Kunming University of Science and TechnologyKunmingChina National Engineering Research Center of Vacuum Metallurgy Kunming University of Science and TechnologyKunmingChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunmingChina Shanxi Regal Advanced Material Co. Ltd.Yuncheng CityChina

Magnesium(Mg)alloys are widely used lightweight structural materials for automobiles and help reduce carbon ***,their use increases the production of Mg alloy scrap,which is recycled at a much lower rate than aluminum,and its greater complexity poses challenges to existing recycling *** vacuum distillation can be used to recycle Mg alloy scrap,this requires optimizing and maximizing metal recirculation,but there has been no thermodynamic analysis of this *** this study,the feasibility and controllability of separating inclusions and 23 metal impurities were evaluated,and their distribution and removal limits were *** analyses and experimental results showed that inclusions and impurity metals of separation coefficient lgβ_(i)≤-5,including Cu,Fe,Co,and Ni below 0.001 ppm,could be removed from the *** Zn entered the recycled Mg,while impurities with-1

关键词： Magnesium alloy Scrap recycling Thermodynamic analysis Impurity removal Vacuum distillation

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Enhancing performance of fullerene-based organic electrochemical transistors via side-chain engineering

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Nano Research 2025年第2期18卷 905-912页

作者： Wenxin Fang Zijie Li Chengdong Wang Xiaowei Zhao Junyu Li Gang Ye Fengwei Huo Li Qiu Yanxi Zhang Wei Huang Institute of Flexible Electronics(IFE Future Technologies)Xiamen UniversityXiamen 361005China Yunnan Key Laboratory of Electromagnetic Materials and Devices National Center for International Research on Photoelectric and Energy MaterialsSchool of Materials and EnergyYunnan UniversityKunming 650091China Sinopec Shanghai Research Institute of Petrochemical Technology Shanghai 201028China Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsSchool of Materials Science and EngineeringHubei UniversityWuhan 430062China Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(NanjingTech)Nanjing 211800China Frontiers Science Center for Flexible Electronics MIIT Key Laboratory of Flexible Electronics(KLoFE)Northwestern Polytechnical UniversityXi'an 710072China

The performance of organic electrochemical transistors(OECTs)relies on the interaction between organic semiconductors and ***,hydrophilic ethylene glycol(EG)side chains are incorporated into organic semiconductors to improve the channel’s capacity to absorb ***,the EG substituted organic semiconductors tend to swell when immersed in aqueous electrolytes and exhibit microstructural changes induced by dopant *** our research,we introduce an alkyl spacer to create distance between the fullerene and EG *** approach is designed to reduce the negative effects of swelling and balance the ion and electron *** conducted an analysis of OECTs using four fullerene derivatives:no alkyl spacer,butyl,hexyl,and octyl *** OECTs based on fullerene derivatives with butyl and hexyl spacers exhibit enhanced transconductance(g_(m)=11.8 and 19.4 mS)compared to the ones without alkyl *** has also been observed that the butyl and hexyl spacers lead to a more than tenfold increase in volumetric *** increasing the alkyl spacer(octyl group)leads to no transistor *** study uncovers the relationship between alkyl spacers and the performance of OECTs based on fullerene *** will serve as a guideline for designing n-type small molecules for ***,we showcased the potential of utilizing OECTs based on these fullerene derivatives in cation sensing,which is promising for developing sweat sensors.

关键词： organic electrochemical transistors fullerene derivatives ethylene glycol side chains ion and electron conduction

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Effect of surface species on the alcohol-acid adsorption from FTS wastewater on graphene:A structure-capacity study

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Journal of Environmental Sciences 2025年第3期149卷 651-662页

作者： Xiao Liu Xiaolong Zhang Chunyu Geng Qinglan Hao Jie Chang Xin Hu Yongwang Li Botao Teng Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjin 300457China State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer MaterialsCollege of ChemistryNankai UniversityTianjin 300071China National Energy Center for Coal to Liquids Synfuels China Co.Ltd.Beijing 101407China Institute of Sustainability of Chemical Energy and EnvironmentAgency for ScienceTechnology and Research627833Singapore Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal UniversityJinhua 321004China

Fischer-Tropsch synthesis(FTS)wastewater retaining low-carbon alcohols and acids are organic pollutants as a limiting factor for FTS *** this work,the structurecapacity relationships between alcohol-acid adsorption and surface species on graphene were reported,shedding light into their intricate *** graphene oxide(GO)and reduced graphene oxide(rGO)were synthesized via improved Hummers method with flake graphite(G).The physicochemical properties of samples were characterized via SEM,XRD,XPS,FT-IR,and *** alcohol-acid adsorption behaviors and adsorption quantities on G,GO,and rGO weremeasured via theoretical and *** was revealed that the presence of COOH,C=O and C–O species on graphene occupy the adsorption sites and increase the interactions of water with graphene,which are unfavorable for alcoholacid *** equilibrium adsorption quantities of alcohols and acids grow in pace with carbon *** monolayer adsorption occurs on graphene was verified viamodel *** has the highest FTS modeling wastewater adsorption quantity(110 mg/g)due to the reduction of oxygen *** novel findings provide a foundation for the alcoholacid wastewater treatment,as well as the design and development of high-performance carbon-based adsorbent materials.

关键词： Alcohol-acid adsorption Fischer-Tropsch synthesis wastewater Graphene Surface species Density functional theory

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Improved surface hydrophobicity of self-assembled transport layers enables perovskite/silicon tandem solar cells with efficiency approaching 31%

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Journal of Energy Chemistry 2025年第5期104卷 749-755页

作者： Jing Yang Jin Wang Biao Shi Yixin Dong Dongxue Liu Shenhzhi Xu Qian Huang Xiaona Du Fu Zhang Miao Yang Yongcai He Bo He Xiaoning Ru Shengzhong Liu Xixiang Xu Pengyang Wang Ying Zhao Xiaodan Zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage CenterState Key Laboratory of Photovoltaic Materials and CellsNankai UniversityTianjin 300350China Three Gorges Corporation Science and Technology Research InstituteBeijing 101199China Tianjin Key Laboratory of Efficient Utilization of Solar Energy Tianjin 300350China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin 300350China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119ShaanxiChina LONGi Central R&D Institute LONGi Green Energy Technology Co.Ltd.Xi’an 710018ShaanxiChina

[4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid(Me-4PACz)self-assembled monolayer(SAM)as the hole transport materials have been demonstrated remarkable potential in perovskite solar cells(PSCs).However,the hydrophobicity of Me-4PACz presents a critical challenge for the fabrication of high-quality perovskite films due to its poor ***,a doped Al_(2)O_(3)with Me-4PACz to modify the Me-4PACz surface was *** one hand,this approach improved the wettability of the Me-4PACz film,enhancing the coverage,uniformity,and buried interface properties of the perovskite *** the other hand,compared to Al_(2)O_(3)modification alone,doping Al_(2)O_(3)with Me-4PACz allowed direct contact between the perovskite and Me-4PACz,resulting in better buried interface *** a result,we achieved an efficiency of 22.71%for single-junction wide-bandgap perovskite solar cells(1.68 eV).Additionally,the efficiency of perovskite/silicon tandem solar cells was improved from 28.68%to 30.92%,with a significant reduction in ***,the tandem cells demonstrated no degradation after 4200 s of operation at the maximum power point.

关键词： Me-4PACz Tandem solar cell Perovskite/silicon Hydrophic

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Continuous production of Cl-terminated MXenes by bubbling chemical vapor growth in molten salt

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Materials Today 2025年 86卷 1-9页

作者： Zhang, Jikai Tao, Yi Ye, Yuxuan Wang, Haiyang Wu, Xinping Luo, Zicheng Shi, Yu Zhao, Qi Cheng, Zongju Guo, Yu Li, Bin Mai, Bo An, Qinyou Zhang, Xiansheng Du, Zhiguo Yang, Shubin School of Materials Science and Engineering Beihang University Beijing100191 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China College of Textiles and Clothing Qingdao University Qingdao266071 China

Although 2D transition-metal carbides (MXenes) are usually synthesized by selective etching and chemical vapor deposition approaches, they are limited by the slow reaction kinetics, resulting in their continuous production challenging. Here, we demonstrate a bubbling chemical vapor growth (BCVG) method to continuously produce Cl-terminated MXenes by the reaction of CH4 and TiCl4 chemical bubbles with titanium powder in a molten salt. In the molten reaction system, titanium powder would effectively react with TiCl4 to form highly active [TiCl6]y– with low Ti[sbnd]Cl bond dissociation energies. The multivalent [TiCl6]y– could efficiently incorporate the carbon species from CH4 to form [Ti6CCl18] clusters on the surface of bubbles in a low energy barrier, efficiently promoting the reaction kinetics. Subsequently, Cl-terminated MXenes were produced based on the following condensation reaction of [Ti6CCl18] clusters. The resultant MXene (Ti2CClx) exhibits an expanded structure with strong interfacial polarization between its basal planes and the polymer matrix, delivering a good electromagnetic wave absorption performance with a minimum reflection loss (RLmin) value of –52.2 dB at a thin thickness of 2.84 mm. © 2025 Elsevier Ltd

关键词： Condensation reactions

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Achieving excellent strength-ductility-superelasticity combination in high-porosity NiTiNb scaffolds via high-temperature annealing

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材料科学技术（英文版） 2025年第3期206卷 221-233页

作者： Wei Liu Yintao Zhang Binghao Wang Shifeng Liu Yan Wang Ling Zhang Liang Zhang Lai-Chang Zhang Weijie Lu Liqiang Wang State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Affiliated Hospital of Youjiang Medical University for Nationalities Guangxi Health Commission Key Laboratory of Biomedical Materials ResearchBaise 533000China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China International Joint Laboratory for Light Alloys(MOE) College of Materials Science and EngineeringChongqing UniversityChongqing 400045China Centre for Advanced Materials and Manufacturing School of EngineeringEdith Cowan University270 Joondalup DriveJoondalupPerth6027WAAustralia

Metallic scaffolds with lightweight,low elastic modulus,and high energy-absorbing capacity are widely utilized in industrial applications but usually require post-heat treatment to enhance their comprehen-sive mechanical ***,it is unclear how to utilize the impact of β-Nb on the surrounding matrix for NiTiNb ternary alloys to achieve strength-ductility-superelasticity ***,we pre-pared rhomboidal dodecahedral NiTiNb porous scaffolds with a porosity of 85.9％by additive ***,annealing treatment was employed to drastically reduce the phase transformation temperatures and expand the thermal ***,the 850 ℃ annealed scaffold exhibited exceeding double compressive strength of the as-built sample,with a remarkable improvement in ductil-ity and *** the microstructure perspective,high-temperature annealing caused a further eutectic reaction of the unmelted Nb particles with the NiTi matrix and the transformation of mesh-like β-Nb into dispersedly distributed spherical β-Nb *** microstructure evolution after defor-mation indicated that stress-induced martensitic transformation occurred in the matrix away from the NiTi-Nb eutectic region whereas almost no martensite formed nearby β-Nb *** probe tomog-raphy characterization revealed an element diffusion zone in several nanometers surrounding the β-Nb particle,where the substitution of Nb with Ti led to a higher Ni:Ti atomic ratio,lowering transforma-tion *** dynamics simulations illustrated that β-Nb particles can not only entangle dislocations internally,acting as reinforcements but also hinder the twin growth,contributing to strain *** work elucidates the influence of β-Nb particles on the deformation mechanism of the NiTi-Nb eutectic region through in-depth atomic-scale investigation,which can provide inspiration for the improvement of comprehensive mechanical properties of NiTiNb alloys.

关键词： NiTiNb Eutectic alloys Mechanical properties Metallic scaffolds Strain hardening

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Reductive coupling mechanism in layered oxide cathodes for lithium-/sodium-ion batteries

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Science China Materials 2025年第3期68卷 775-779页

作者： Yao Wang Yongchang Liu Institute for Advanced Materials and Technology Beijing Advanced Innovation Center for Materials Genome EngineeringState Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China

With the ever-increasing consumption of traditional fossil fuels,the development of sustainable and renewable energy sources is urgently *** substantial integration of intermittent renewable energy calls for highly efficient energy storage systems[1,2].Rechargeable lithium-ion batteries(LIBs)are currently dominating the market of portable electronic devices and electric vehicles because of their high energy density,outstanding cycling stability,and small self-discharge[3,4].

关键词： lithium coupling cycling

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Energy transfer enhanced photocatalytic hydrogen evolution in organic heterostructure nanoparticles via flash nanoprecipitation processing

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Green Energy & Environment 2025年第2期10卷 390-398页

作者： Miaojie Yu Weiwei Zhang Xueyan Liu Guohui Zhao Jun Du Yongzhen Wu Wei-Hong Zhu Key Laboratory for Advanced Materials and Institute of Fine Chemicals Joint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China

Organic nanophotocatalysts are promising candidates for solar fuels production,but they still face the challenge of unfavorable geminate recombination due to the limited exciton diffusion ***,we introduce a binary nanophotocatalyst fabricated by blending two polymers,PS-PEG5(PS)and PBT-PEG5(PBT),with matched absorption and emission spectra,enabling a Forster resonance energy transfer(FRET)process for enhanced *** heterostructure nanophotocatalysts are processed using a facile and scalable flash nanoprecipitation(FNP)technique with precious kinetic control over binary nanoparticle *** resulting nanoparticles exhibit an exceptional photocatalytic hydrogen evolution rate up to 65 mmol g^(-1) h^(-1),2.5 times higher than that single component *** through fluorescence spectra and transient absorption spectra confirm the hetero-energy transfer within the binary nanoparticles,which prolongs the excited-state lifetime and extends the namely“effective exciton diffusion length”.Our finding opens new avenues for designing efficient organic photocatalysts by improving exciton migration.

关键词： Polymer photocatalysts Nanoparticles Hydrogen evolution Forster resonance energy transfer

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KCl acts as a flux to assist the growth of sub-millimeter-scale metallic 2D non-layered molybdenum dioxide

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Rare Metals 2025年第1期44卷 404-416页

作者： Li-Ying Deng Qing Zhang Wang-Yang Li Xiao-Yuan Ye Yi-Fan Zhao Shen-Zhong Chen Yu-Lan Wang Xing-Hui Wang Hui-Peng Chen Zhi-Yang Yu Qun Yan Shu-Ying Cheng Tai-Liang Guo Wen-Ping Hu Feng Ding Jie Sun National and Local United Engineering Laboratory of Flat Panel Display Technology College of Physics and Information EngineeringFuzhou UniversityFuzhou350100China Fujian Key Laboratory of Agricultural Information Sensing Technology College of Mechanical and Electrical EngineeringFujian Agriculture and Forestry UniversityFuzhou350002China Key Laboratory of Organic Integrated Circuit Department of ChemistrySchool of ScienceMinistry of Education and Tianjin Key Laboratory of Molecular Optoelectronic SciencesTianjin UniversityTianjin300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin300072China College of Physics and Information Engineering Institute of Micro-Nano Devices and Solar CellsFuzhou UniversityFuzhou350108China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou350116China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518000China

Two-dimensional(2D)metal oxides(2DMOs),such as MoO_(2),have made impressive strides in recent years,and their applicability in a number of fields such as electronic devices,optoelectronic devices and lasers has been ***,2DMOs present challenges in their synthesis using conventional methods due to their non-van der Waals *** report that KCl acts as a flux to prepare large-area 2DMOs with sub-millimeter *** systematically investigate the effects of temperature,homogeneous time and cooling rate on the products in the flux method,demonstrating that in this reaction a saturated homogenous solution is obtained upon the melting of the salt and ***,the cooling rate was adjusted to regulate the thickness of the target crystals,leading to the precipitation of 2D non-layered material from the supersaturated solution;by applying this method,the highly crystalline non-layered 2D MoO_(2)flakes with so far the largest lateral size of up to sub-millimeter scale(~464μm)were *** studies have revealed that the 2D MoO_(2)features metallic properties,with an excellent sheet resistance as low as 99Ω·square^(-1 )at room temperature,and exhibits a property of charge density wave in the measurement of resistivity as a function of temperature.

关键词： 2D non-layered materials Metallic Metal oxide Thickness modulation Flux method

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