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Tough Polymeric Hydrogels Based on Amino Acid Derivative Mediated Dynamic Metal Coordination Bonds

Chinese Journal of Polymer science 2024年第10期42卷 1578-1588,I0014页

作者： Meng Li Meng-Yuan Zhang Wu-Xuan Lei Zhu-Ting Lv Qing-Hua Shang Zheng Zhao Jiang-Tao Li Yi-Long Cheng Engineering Research Center of Energy Storage Materials and Devices Ministry of EducationSchool of ChemistryXi’an Jiaotong UniversityXi’an710049China Polymer Materials&Engineering Department School of Materials Science&Engineering Chang’an UniversityXi’an710064China School of Electrical Engineering Xi’an Jiaotong UniversityXi’an710049China Department of Nuclear Medicine the First Affiliated Hospital of ChinaXi’an Jiaotong UniversityXi’an710049China

Abstract The development of physically crosslinked hydrogels with excellent mechanical and sensing properties is of importance for expanding the practical applications of intelligent soft hydrogel ***,after copolymerization of hydroxyl-containing amino acid derivative N-acryloyl serine(ASer)with acrylamide(AM),we introduce Zr4+through an immersion strategy to construct metal ion-toughened non-covalent crosslinked hydrogels(with tensile strength of up to 5.73 MPa).It is found that the synergistic coordination of hydroxyl and carboxyl groups with Zr^(4+)substantially increases the crosslinking density of the hydrogels,thereby imparting markedly superior mechanical properties compared to hydroxyl-free Zr^(4+)-crosslinked hydrogels,such as N-acryloyl alanine(AAla)copolymerized with AM hydrogels(with tensile strength of 2.98 MPa)Through the adjustment of the composition of the copolymer and the density of coordination bonds,the mechanical properties of the hydrogels can be modulated over a wide ***,due to the introduction of metal ions and the dynamic nature of coordination bonds,the hydrogels also exhibit excellent sensing performance and good self-recovery properties,paving the way for the development of flexible electronic substrates with outstanding comprehensive performances.

关键词： Hydrogel Amino acid Metal coordination Mechanical performance Flexible sensor

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Recent advances on the systems metabolically engineered Pseudomonas species as versatile biosynthetic platforms for the production of polyhydroxyalkanoates

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Systems Microbiology and Biomanufacturing 2024年第2期4卷 473-499页

作者： Hye Min Song Seo Young Jo Haeyoung Lee Subeen Jeon Dohye Yun Chaerin Kim Jina Son Yu Jung Sohn Jong-Il Choi Si Jae Park Department of Chemical Engineering and Materials Science Graduate Program in System Health Science and EngineeringEwha Womans UniversitySeoul 03760Republic of Korea Department of Biotechnology and Bioengineering Chonnam National UniversityGwangju 61186Republic of Korea

Pseudomonas *** been considered one of the most promising microbial platform strains due to its versatile metabolism,enabling the valorization of waste materials into value-added chemical *** the native producer of polyhydroxyal-kanoates(PHAs),the biodegradable biopolyesters,it has been widely engineered by various metabolic engineering tools for the production of PHAs composed of short-chain-length and medium-chain-length monomers with adjustable composition from diverse carbon sources,ranging from pure sugars to crude oils and fatty *** review discusses the feasibility of Pseudomonas *** the industrial host strain and the recent advances regarding the systems metabolic engineering strategies for PHAs production in Pseudomonas sp.

关键词： Pseudomonas sp. Polyhydroxyalkanoates Systems metabolic engineering Synthetic biology Fermentation

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Triple-function Mn regulation of NiFe(oxy)hydroxide for oxygen evolution reaction

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材料科学技术（英文版） 2025年第4期207卷 1-9页

作者： Hui Wan Meng-Yuan Xie Bo Li Jian-Hang Nie Tao Huang Lei Li Jing-Hui Shi Ming-Hua Xian Jia-Rong Huang Wangyu Hu Gui-Fang Huang Fei Gao Wei-Qing Huang Department of Applied Physics School of Physics and ElectronicsHunan UniversityChangsha 410082China School of Materials and Environmental Engineering Changsha UniversityChangsha 410082China Department of Applied Physics School of Physics and ElectronicsHunan UniversityChangsha 410082China College of Materials Science and Engineering Hunan UniversityChangsha 410082China Department of Nuclear Engineering and Radiological Sciences University of MichiganAnn ArborMI 48109USA

Transition metal(oxy)hydroxides are potential oxygen evolution reaction(OER)electrocatalysts;however,simultaneously modulating multiple factors to enhance their performance is a grand ***,we report an incorporating heteroatom strategy via one-step hydrothermal approach to adjust more than one factor of Mn-doped NiFe(oxy)hydroxide(Mn-NiFeOOH/LDH)*** doping regulates heterojunction morphology(reducing nanoparticles and becoming thinner and denser nanosheets),Ni/Fe ratio and valence states(Ni2+,Ni3+,and Ni3+Δ)of Ni *** former could effectively increase surface active sites,and the latter two reduce the content of Fe in the Mnx-NiFeOOH/LDH heterojunction,en-abling more Ni2+convert to Ni3+/3+Δ that have higher intrinsic OER *** a result,the first-rank Mn-NiFeOOH/LDH with ultra-low overpotential of 185 mV@20 mA cm-2 and 296 mV@500 mA cm-2,and the improved OER performance are outdo to those of commercial RuO2 catalyst for ***,the Mn-NiFeOOH/LDH affords the earliest initial potential(1.392 V ***),corresponds to a recorded low overpotential(162 mV).Based on the density functional theory(DFT),Mn dopants can alter intermedi-ate adsorption energy and effectively decrease·OOH's energy *** research exhibits a feasible strategy to design low cost electrocatalysts and provide new possibilities for future industrialization.

关键词： Electrocatalysts Triple-function Heteroatoms adjusting DFT Oxygen evolution reaction

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Electrochemically stable lithium-ion and electron insulators(LEIs)for solid-state batteries

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Nano Research 2022年第2期15卷 1213-1220页

作者： Kai Pei So Yeon Kim Ju Li Frontier Institute of Science and Technology Xi'an Jiaotong UniversityXi'an 710049China Department of Materials Science and Engineering and Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

Rechargeable solid-state Li metal batteries demand ordered flows of Li-ions and electrons in and out of solid structures,with repeated waxing and waning of Ubcc phase near contact interfaces which gives rise to various electro-chemo-mechanical *** have been approaches that adopt three-dimensional(3D)nanoporous architectures consisting of mixed ion-electron conductors(MIECs)to combat these ***,there has remained an issue of LiBcc nucleation at the interfaces between different solid components(e.g.,solid electrolyte/MlEC interface),which could undermine the interfacial bonding,thereby leading to the evolution of mechanical instability and the loss of ionic/electronic *** this regard,the present work shows that the Li-ion and electron insulators(LEIs)that are thermodynamically stable against LiBcc could combat such challenges by blocking transportation of charge carriers on the interfaces,analogous to dielectric layers in *** searched the ab initio database and have identified 48 crystalline compounds to be LEI candidates(46 experimentally reported compounds and 2 hypothetical compounds predicted to be stable)with a band gap greater than 3 eV and vanishing Li *** these compounds,those with good adhesion to solid electrolyte and mixed ion-electron conductor of interest,but are lithiophobic,are expected to be the most *** also extended the search to Na or K metal compatible alkali-ion and electron insulators,and identified some crystalline compounds with a property to resist corresponding alkali-ions and electrons.

关键词： electrochemical stability window stress fracture adhesion contact lithium metal anode

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Mechanistic switch in corrosion behavior of magnesium alloy diamond lattice structures induced by argon plasma treatment

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Journal of Magnesium and Alloys 2025年第1期13卷 101-119页

作者： Viviana M.Posadaa Alexandru Marin Tonny Naranjo Juan Ramírez Patricia Fernández-Morales Ken and Mary Alice Lindquist Department of Nuclear Engineering Pennsylvania State UniversityPA USA Department of Mechanical Engineering School of MinesUniversidad Nacional de ColombiaBogotáColombia Department of Nuclear Plasma and Radiological EngineeringCollege of EngineeringUniversity of Illinois at Urbana-ChampaignILUSA Medicine Faculty Universidad Pontificia BolivarianaAntioquiaColombia Corporación para Investigaciones Biológicas AntioquiaColombia Industrial Engineering Faculty Universidad Pontificia BolivarianaAntioquiaColombia Materials Science and Engineering Department Pennsylvania State UniversityUniversity ParkPA16802USA Surface Analysis Laboratory Institute for Nuclear Research PitestiMioveni15400Romania Department of Electronics and Computer Science Pontificia Universidad Javeriana de CaliColombia

Advancing 3D magnesium(Mg)development beyond current limitations requires controlling Mg alloy degradation in pre-designed,low-dimension *** study reveals a mechanistic switch in the corrosion behavior of Mg alloy(3.6%Al,0.8%Zn)diamond lattice structures,induced by plasma nanosynthesis(400 eV Ar^(+)ions,fluence 1×10^(17) ions/cm^(2)).Plasma treatment of the Mg alloy increases surface Mg from 1.5%to 14.5%,enhances carbonate formation,and generates a nanostructured surface with a Mg carbonate layer over an oxide/hydroxide *** vitro and in vivo analyses over 8 wk demonstrate how this treatment fundamentally alters the degradation process and stability of these 3D *** untreated samples initially formed a protective film that subsequently diminished,DPNS-treated samples demonstrated an inverse corrosion behavior.X-ray photoelectron spectroscopy(XPS)and electrochemical impedance spectroscopy(EIS)confirmed the presence of a stable,protective layer composed of magnesium oxide,magnesium hydroxide,and magnesium carbonate on the DPNS-treated *** 14 days,the DPNS-treated sample exhibited a more positive corrosion potential(-0.69 V versus-1.36 V)and a marginally lower current density(0.73 mA/cm^(2)compared to 0.75 mA/c^(2))relative to the *** protective layer,combined with modified surface topology,initiated a core-to-periphery degradation pattern that maintained structural integrity for up to 8 wk *** findings support the conclusion that the DPNS-treated scaffold demonstrates sustained improved corrosion resistance over time compared to the untreated ***-CT revealed plasma-treated samples retained larger struts(504.9±95.3μm at 8 wk)and formed larger H_(2) pockets extending 14.2 mm from the implant center,versus 4.9 mm in *** corrosion behavior switch enhances stability but risks pore clogging,offering insights for tailoring Mg alloy degradation and H_(2) evolution in 3D architectures

关键词： Mg Corrosion resistance Cellular materials Nanotopography Nano-medicine Diirected plasma nanosynthesis

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Chevrel phase: A review of its crystal structure and electrochemical properties

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Progress in Natural science:materials International 2023年第1期33卷 8-15页

作者： Meng Liu Guocheng Lv Tianming Liu Hao Liu Lingchang Kong Lintao Tian Wenxiu Rao Yuxin Li Libing Liao Juchen Guo Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences(Beijing) School of Science China University of Geosciences Materials Science and Engineering Program University of California-Riverside Department of Chemical and Environmental Engineering University of California – Riverside

Chevrel phase compounds have attracted increasing attention as electrochemical energy storage materials and electro-catalysts. Benefiting from their unique crystal structure, Chevrel phase compounds can not only function as the host structures for reversible intercalation of a broad range of cations, but also exhibit high catalytic activity in electrochemical reduction reactions. Here we provide an overview of recent progress in the development of Chevrel phase materials including new understanding of structural features, synthetic methods, and electrochemical properties. A brief conclusion and perspectives on the future development of Chevrel phase materials are also provided.

关键词： Chevrel phase Electrochemical properties Energy storage Electro-catalysis

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Simultaneous thermal preparation of ultra-pure ZnO nano-wires and recovery of pure MnO from waste alkaline batteries

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Ceramics International 2025年第13期51卷 17593-17606页

作者： Behera, Pravas Ranjan Farzana, Rifat Sahajwalla, Veena School of Materials Science and Engineering UNSW Sydney NSW2052 Australia Advanced Materials Technology Department Council of Scientific and Industrial Research – Institute of Minerals and Materials Technology Odisha Bhubaneswar751013 India Australian Nuclear Science and Technology Organisation Locked Bag 2001 Kirrawee DC NSW2232 Australia

A simultaneous preparation of 100 % pure zinc oxide nano-wires and recovery of pure manganese oxide catalysts from waste alkaline batteries was studied by a laboratory scale thermal processing technique with temperature variation (850–950 °C) at various residence times (1–3 h) under a constant Ar atmosphere and 1 atm pressure. The change in structure and morphology of the products obtained at different experimental parameters were analysed through SEM and TEM analysis. The zinc oxide nano-wires obtained at 950 °C, 1 h showed consistency in structure and morphology and also purity as confirmed by XRD, XPS, and EDS results. The obtained zinc oxide nano-wires at 850–950 °C showed a variance in the average diameter from ∼82 to ∼127 nm as observed under TEM with an observed morphological change with increase in temperature/time. Photoluminescence spectra was obtained for ZnO nano-wires which showed two emission bands in UV range and visible range respectively. This thermal investigation process exhibits a roadway to recycle waste alkaline batteries by recovering MnO and ZnO while reducing the burden on landfills and environment alike. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Wire products

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Recent advances and challenges of nitrogen/nitrate electro catalytic reduction to ammonia synthesis

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Frontiers in Energy 2024年第2期18卷 128-140页

作者： Junwen CAO Yikun HU Yun ZHENG Wenqiang ZHANG Bo YU Institute of Nuclear and New Energy Technology(INET) Collaborative Innovation Center of Advanced Nuclear Energy TechnologyTsinghua UniversityBeijing 100084China Department of Chemical Engineering University of WaterlooWaterlooOntario N2L 3G1Canada Institute of New Energy Materials and Engineering School of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China

The Haber-Bosch process is the most widely used synthetic ammonia technology at *** its invention,it has provided an important guarantee for global food ***,the traditional Haber-Bosch ammonia synthesis process consumes a lot of energy and causes serious environmental *** the serious pressure of energy and environment,a green,clean,and sustainable ammonia synthesis route is urgently *** synthesis of ammonia is a green and mild new method for preparing ammonia,which can directly convert nitrogen or nitrate into ammonia using electricity driven by solar,wind,or water energy,without greenhouse gas and toxic gas ***,the basic mechanism of the nitrogen reduction reaction(NRR)to ammonia and nitrate reduction reaction(NO_(3)^(-))to ammonia were *** representative approaches and major technologies,such as lithium mediated electrolysis and solid oxide electrolysis cell(SOEC)electrolysis for NRR,high activity catalyst and advanced electrochemical device fabrication for(NO_(3)^(-))RR and electrochemical ammonia synthesis were *** on the above discussion and analysis,the main challenges and development directions for electrochemical ammonia synthesis were further proposed.

关键词： electrochemical ammonia synthesis nitrogen nitrate nitrogen reduction reaction(NRR)to ammonia nitrate reduction reaction(NO_(3)^(-))RR

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Corrosion techniques and strategies for used fuel containers with copper corrosion barriers under deep geological disposal conditions:A review

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International Journal of Minerals,Metallurgy and materials 2024年第12期31卷 2582-2606页

作者： Yanxin Qiao Tianyu Wang Zhilin Chen Jun Wang Chengtao Li Jian Chen School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Suzhou Nuclear Power Research Institute Suzhou 215004China Department of Chemistry and Surface Science Western University of Western OntarioLondon N6A 5B7Canada

Safe emplacement of high-level nuclear waste(HLNW)arising from the utilization of nuclear power is a frequently en-countered and considerably challenging *** widely accepted and feasible approach for the permanent disposal of HLNW involves housing it in a corrosion-resistant container and subsequently burying it deep in a geologic *** focus lies on ensuring the dur-ability and integrity of the container in this *** review introduces various techniques and strategies employed in controlling the corrosion of used fuel containers(UFCs)using copper(Cu)as corrosion barrier in the context of deep geological ***,these corrosion prevention techniques and methods have been effectively implemented and employed to successfully mitigate the corrosion challenges encountered during the permanent disposal of Cu containers(e.g.,corrosion mechanisms and corrosion parameters)in deep geologic *** primary objective of this review is to provide an extensive examination of the alteration in the corrosion envir-onment encountered by the UFCs when subjected to deep geologic repository conditions and focusing on addressing the potential corro-sion scenarios.

关键词： corrosion prevention Cu sulphide high-level nuclear waste disposal

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Oscillatory Hall effect from magnetoelectronic coupling in flexoelectronic silicon

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Physical Review B 2024年第8期109卷 L081113-L081113页

作者： Paul C. Lou Ravindra G. Bhardwaj Anand Katailiha W. P. Beyermann Sandeep Kumar Department of Mechanical Engineering University of California Riverside California 92521 USA Department of Physics and Astronomy University of California Riverside California 92521 USA Materials Science and Engineering Program University of California Riverside California 92521 USA

Magnetoelectronic coupling can be defined as cross-domain coupling between electronic and magnetic properties, where modulation in magnetic properties changes the electronic properties. In this Letter, explicit experimental evidence of magnetoelectronic coupling is presented, which is uncovered from the oscillatory Hall effect response in Hall measurement. The strain gradient in a MgO (1.8 nm)/p-Si (∼400 nm) freestanding sample leads to transfer of electrons (∼5×1018cm−3) from valence to conduction band due to flexoelectronic charge separation in the p-Si layer. The resulting flexoelectronic polarization gives rise to the temporal magnetic moment from dynamical multiferroicity. The external magnetic field changes the net temporal magnetic moment, which causes modulations in charge carrier concentration and oscillatory Hall effect. The period of oscillatory Hall response is 1.12 T, which is attributed to the magnitude of the temporal magnetic moment. The discovery of the oscillatory Hall effect adds another member to the family of Hall effects.

关键词： Hall effect Doped semiconductors Electronically polarized systems Flexoelectrics Multiferroics Hall bar

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