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Ordered Mesoporous Magnetic Ceramics from Single-Source Self-Assembled Ferrocene-functionalized Giant Molecules

CCS Chemistry 2025年第2期7卷 460-469页

作者： Qing-Yun Guo Xing-Han Li Yuean Wu Xiao-Yun Yan Yuchu Liu Di Han Bo-xing Zhang Xian-You Liu Huanyu Lei Zebin Su Jiahao Huang Wei Zhang GengXin Liu Hao Liu Xueyan Feng Stephen Z.D.Cheng South China Advanced Institute of Soft Matter Science and Technology School of Emergent Soft MatterSouth China University of TechnologyGuangzhou 510640 Department of Polymer Science School of Polymer Science and Polymer EngineeringThe University of AkronAkronOhio 44325-3909 Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer MaterialsSouth China University of TechnologyGuangzhou 510640 College of Polymer Science and Engineering State Key Laboratory of Polymer Materials and EngineeringSichuan UniversityChengdu 610065 Department of Pharmaceutical Science School of PharmacyUniversity of PittsburghPittsburghPennsyl-vania 15261 State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimensional MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620 State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200438

Ordered mesoporous materials have demonstrated con-siderable potential in various fields,such as catalysis,separation,and biomedical *** such materials has garnered extensive ***-ever,current investigations of mesoporous materials predominantly focus on high porosity and related appli-cations,often neglecting the development of mesopor-ous materials possessing additional ***,we report the fabrication of ordered mesoporous magnetic ceramics by pyrolyzing single-source self-assembled giant molecules,constructed by dihydroxyl-functiona-lized polyhedral oligomeric silsequioxane,polystyrene,and *** ordered magnetic ceramics with high surface areas and uniform pore sizes were obtained after the *** measure-ments revealed the ferromagnetic nature of the ceramic *** magnetic ceramic monoliths and magnetic ceramic thin films can be fabricated by pro-cessing the precursor giant ***,the mesoporous magnetic ceramics exhibit exceptional adsorption capacity and facile separability,making them suitable for water pollutant removal applications.

关键词： mesoporous materials self-assembly giant molecules polyhedral oligomeric silsequioxane ferrocene

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Grain Boundary Engineering in Nickel-Rich Cathode: A Combination of High-Throughput First-Principle and Interpretable Machine Learning Study

SSRN

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SSRN 2024年

作者： Hu, Yixuan Zhang, Yumeng Wen, Bo Dai, Fu-Zhi Shanghai200240 China Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials & Processing Technology Beijing100076 China School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China AI for Science Institute Beijing100084 China

One of the primary challenges in commercializing nickel (Ni)-rich layered cathodes for lithium-ion batteries (LIBs) is addressing the problem of crack formation during cell cycling. These cracks quickly spread along grain boundaries (GBs), causing capacity and voltage degradation. GB engineering, a classical technique for strengthening materials that has been largely unexplored in LIBs, could potentially inhibit intergranular fractures and significantly extend battery life. In this study, we employed a synergistic approach that combined high-throughput first-principles calculations and an interpretable machine learning (ML) framework to assess the feasibility of enhancing GBs through segregation-induced strengthening via doping. As a result, we generated a comprehensive database containing 256 doped GBs across 64 elements, representing the largest database for first-principles-aided GB engineering in LIBs to date. This database further enabled the implementation of an interpretable ML workflow to uncover the fundamental principles governing dopant segregation and GB strengthening. Based on the insights gained from this research, we provide practical and promising recommendations for dopant elements that can effectively anchor and reinforce GBs, such as Mg, Al, Si, Ti, Cr, Mn, Fe, Cu, Zn, Hf, and Ce, with some already demonstrating success in experiments. This work on GB engineering serves as a foundation for the development of advanced, doped cathode materials for next-generation batteries. © 2024, The Authors. All rights reserved.

关键词： Grain boundaries

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Integrating molybdenum sulfide selenide-based cathode with C-O-Mo heterointerface design and atomic engineering for superior aqueous Zn-ion batteries

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Nano Research 2023年第4期16卷 4933-4940页

作者： Hong Li Biao Chen Runhua Gao Fugui Xu Xinzhu Wen Xiongwei Zhong Chuang Li Zhihong Piao Nantao Hu Xiao Xiao Feng Shao Guangmin Zhou Jinlong Yang Guangdong Research Center for Interfacial Engineering of Functional Materials College of Materials Science and EngineeringShenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Tsinghua-Berkeley Shenzhen Institute&Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education School of ElectronicsInformation and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjin 300350China School of Chemistry and Chemical Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong UniversityShanghai 200240China School of Engineering and Technology College Yang-en UniversityQuanzhou 362014China

Transition metal dichalcogenides(TMDs)have been regarded as promising cathodes for aqueous zinc-ion batteries(AZIBs)but suffer from sluggish reaction kinetics due to their poor conductivity and the strong electrostatic interaction between Zn-ion and cathode ***,a well-defined structure with MoSSe nanosheets vertically anchored on graphene is used as the cathode for *** dissolution of Se into MoS2 lattice together with heterointerface design via developing C-O-Mo bonds improves the inherent conductivity,enlarges interlayer spacing,and generates abundant anionic *** a result,the Zn2+intercalation/deintercalation process is greatly improved,which is confirmed by theoretical modeling and ex-situ experimental ***,the assembled AZIBs exhibit high-rate capability(124.2 mAh·g^(−1)at 5 A·g^(−1))and long cycling life(83%capacity retention after 1,200 cycles at 2 A·g^(−1)).Moreover,the assembled quasi-solid-state Zn-ion batteries demonstrate a stable cycling performance over 100 cycles and high capacity retention over 94%after 2,500 bending *** study provides a new strategy to unlock the electrochemical activity of TMDs via interface design and atomic engineering,which can also be applied to other TMDs for multivalent batteries.

关键词： Zn2+kinetics heterointerface design atomic engineering anion vacancy

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A clustering adaptive Gaussian process regression method: response patterns based real-time prediction for nonlinear solid mechanics problems

arXiv

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arXiv 2024年

作者： Li, Ming-Jian Lian, Yanping Cheng, Zhanshan Li, Lehui Wang, Zhidong Gao, Ruxin Fang, Daining Institute of Advanced Structure Technology Beijing Institute of Technology Beijing100081 China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures Beijing100081 China

Numerical simulation is a powerful approach to study nonlinear solid mechanics problems. However, mesh-based or particle-based numerical methods suffer from the common shortcoming of being time-consuming, particularly for complex problems with real-time analysis requirements. This study presents a clustering adaptive Gaussian process regression (CAG) method aiming for real-time prediction for nonlinear structural responses in solid mechanics. It is a data-driven machine learning method featuring a small sample size, high accuracy, and high efficiency, leveraging nonlinear structural response patterns. Similar to the traditional Gaussian process regression (GPR) method, it operates in offline and online stages. In the offline stage, an adaptive sample generation technique is introduced to cluster datasets into distinct patterns for demand-driven sample allocation. This ensures comprehensive coverage of the critical samples for the solution space of interest. In the online stage, following the divide-and-conquer strategy, a pre-prediction classification categorizes problems into predefined patterns sequentially predicted by the trained multi-pattern Gaussian process regressor. In addition, dimension reduction and restoration techniques are employed in the proposed method to enhance its efficiency. A set of problems involving material, geometric, and boundary condition nonlinearities is presented to demonstrate the CAG method’s predictive abilities. The proposed method can offer predictions within a second and attain high precision with only about 20 samples within the context of this study, outperforming the traditional GPR using uniformly distributed samples for error reductions ranging from 1 to 3 orders of magnitude. The CAG method is expected to offer a powerful tool for real-time prediction of nonlinear solid mechanical problems and shed light on the complex nonlinear structural response pattern. Copyright © 2024, The Authors. All rights reserved.

关键词： Gaussian distribution

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Zingiber Officinale-assisted Graphene Oxide Green Reduction for Excellent Photocatalysis

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Current Nanomaterials 2024年第4期9卷 303-313页

作者： Saini, Krati Chamoli, Pankaj Shukla, Ravi K. Kar, Kamal K. Raina, K.K. Department of Physics School of Basic & Applied Sciences Department of Physics Shri Guru Ram Rai University Uttarakhand Dehradun248001 India Advanced Functional Smart Materials Laboratory School of Physical Sciences Department of Physics DIT University Uttarakhand Dehradun248009 India Advanced Nanoengineering Materials Laboratory Materials Science Programme Indian Institute of Technology Kanpur Kanpur208016 India Department of Physics MS Ramaiah University of Applied Sciences Karnataka Bangalore Urban560 054 India

Introduction: A facile approach for producing graphene nanosheets (GNs) has been established by reducing graphene oxide (GO) with ginger extract (GEx) at low temperature. The elimination of oxygen characteristics from GO has been validated by a Raman study. Method: FTIR analysis also supports the Raman signatures of the removal of oxygen species from the carbon core. Surface analysis confirms the remarkable deoxidation of GO and settles the production of GNs. After that, synthesized GNs were tested for their capability to photodegrade Methylene blue (MB) dye under visible and UV (both 125 W) light. Result: At low concentrations (0.5 mg), GNs are an effective photocatalyst for the degradation of MB, with a maximum degradation efficiency of 91.84% in 45 minutes when exposed to UV light irradiation. Conclusion: Results favor that the GEx provides a potential substitute for toxic or harmful reducing agents for the ecologically sustainable production of GNs on a mass scale and synthesized GNs act as an excellent photocatalyst against MB. © 2024, Bentham science Publishers. All rights reserved.

关键词： Graphene

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A Scalable Strategy of "Ball-Milling-Assisted Laser Scanning Method" to Achieve Cr2Ni3 Catalyst: An Unprecedented Robust Anode for Oxygen Evolution Reaction

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ChemSusChem 2025年第11期18卷 e202500140页

作者： Ren, Yingli Su, Mingyu Zhu, Shengli Cui, Zhenduo Li, Zhaoyang Wu, Shuilin Xu, Wence Gao, Zhonghui Liang, Yanqin Ma, Lili Jiang, Hui School of Materials Science and Engineering Tianjin University Tianjin300350 China Tianjin Key Laboratory of Composite and Functional Materials Tianjin300350 China Ministry of Education Key Laboratory of Advanced Ceramics and Machining Technology Tianjin300350 China School of Materials Science & Engineering Peking University Beijing100871 China

Industrial water-alkali splitting is facing high energy consumption due to the high overpotential of commercial Ni mesh anode in oxygen evolution reaction (OER) processing. Herein, a simple ball-milling-assisted laser scanning strategy was employed to introduce the hardest Lewis acid chromium (Cr) into the Ni matrix to form Cr2Ni3 catalysts supported by Ni mesh, endowing such NiCr/Ni mesh anode a robust OER performance at a low-cost. It is shown that facilitating the self-adsorption of oxygen species and promoting the leaching of soluble Cr cations aids in reconstructing Ni cations into active (oxy)hydroxide species. This study explores the innovative development of Cr-doped NiCr/Ni mesh catalysts to create porous NiCr/Ni alloys with Cr2Ni3 as the active phase. The optimal Ni0.5Cr0.5-NM electrode demonstrates ultra-low overpotentials of 293 mV and 321 mV at 50 and 100 mA cm−2, respectively, while maintaining excellent stability for over 100 hours at 100 mA cm−2. This work provides insight into the batch fabrication of customized OER anodes for sustainable hydrogen production. © 2025 Wiley-VCH GmbH.

关键词： Milling (machining)

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SGLT2 inhibitor empagliflozin promotes revascularization in diabetic mouse hindlimb ischemia by inhibiting ferroptosis

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中国药理学报（英文版） 2023年第6期44卷 1161-1174页

作者： Jing-xuan Han Lai-liu Luo Yi-cheng Wang Makoto Miyagishi Vivi Kasim Shou-rong Wu Key Laboratory for Biorheological Science and Technology of Ministry of Education College of BioengineeringChongqing UniversityChongqing 400044China The 111 Project Laboratory of Biomechanics and Tissue Repair College of BioengineeringChongqing UniversityChongqing 400044China Key Laboratory for Biorheological Science and Technology of Ministry of Education College of BioengineeringChongqing UniversityChongqing 400044China The 111 Project Laboratory of Biomechanics and Tissue Repair College of BioengineeringChongqing UniversityChongqing 400044China State and Local Joint Engineering Laboratory for Vascular Implants College of BioengineeringChongqing UniversityChongqing 400044China Molecular Composite Medicine Research Group Biomedical Research InstituteNational Institute of Advanced Industrial Science and Technology(AIST)TsukubaIbaraki 305-8566Japan

Gliflozins are known as SGLT2 inhibitors,which are used to treat diabetic patients by inhibiting glucose reabsorption in kidney proximal *** studies show that gliflozins may exert other effects independent of SGLT2 *** this study we investigated their effects on skeletal muscle cell viability and paracrine function,which were crucial for promoting revascularization in diabetic hindlimb ischemia(HLI).We showed that treatment with empagliflozin(0.1-40 μM)dose-dependently increased high glucose(25 mM)-impaired viability of skeletal muscle C2C12 ***,dapagliflozin,ertugliflozin,ipragliflozin and tofogliflozin exerted similar protective effects on skeletal muscle cells cultured under the hyperglycemic *** analysis revealed an enrichment of pathways related to ferroptosis in empagliflozin-treated C2C12 *** further demonstrated that empagliflozin and other gliflozins(10 μM)restored GPX4 expression in high glucose-treated C2C12 cells,thereby suppressing ferroptosis and promoting cell ***(10 μM)also markedly enhanced the proliferation and migration of blood vessel-forming cells by promoting paracrine function of skeletal muscle C2C12 *** diabetic HLI mice,injection of empagliflozin into the gastrocnemius muscle of the left hindlimb(10mg/kg,every 3 days for 21 days)significantly enhanced revascularization and blood perfusion ***,these results reveal a novel effect of empagliflozin,a clinical hypoglycemic gliflozin drug,in inhibiting ferroptosis and enhancing skeletal muscle cell survival and paracrine function under hyperglycemic condition via restoring the expression of *** study highlights the potential of intramuscular injection of empagliflozin for treating diabetic HLI.

关键词： diabetic hindlimb ischemia empagliflozin therapeutic angiogenesis revascularization ferroptosis

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Unified throughout-pore microstructure enables ultrahigh separator porosity for robust high-flux lithium batteries

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Electron 2023年第1期1卷 37-49页

作者： Dongjiang Chen Yuanpeng Liu Chao Feng Yuhui He Shengyu Zhou Botao Yuan Yunfa Dong Haodong Xie Guangfeng Zeng Jiecai Han Weidong He National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbinChina Center for Composite Materials and Structures Harbin Institute of TechnologyHarbinChina State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of ChinaChengduChina Chongqing Research Institute Harbin Institute of TechnologyChongqingChina Interdisciplinary Graduate Program in Materials Science Vanderbilt UniversityNashvilleTennesseeUSA

With small thickness,commercial polyolefin separators own low porosity to ensure sufficient thermomechanical properties,resulting in tortuous and enlarged Li+diffusion pathways that induce large overpotentials and detrimental dendrite *** a dilemma,the exploration of highly porous separators has been challenged by their large thickness,impairing the applicability of such ***,an ultraporous architecture is designed to shorten Li+transfer pathways by impregnating electrolyteaffinitive poly(vinylidene fluoride-co-hexafluoropropylene)into ultralight~3μm 3D-polytetrafluoroethylene scaffold(abbreviated as UP3D).The UP3D separator with a porosity of 74%gives rise to 70%enhancement in Li+transference and 77%reduction in Li+transfer resistance(2.67 mΩmm^(−1))and thus enables an ultrahigh Li+flux of 22.7 mA cm^(−2),effectively alleviating Li+concentration gradient across the *** the separator,the LiFePO4 half cell delivers a capacity of 118 mAh g^(−1) with an unparalleled capacity retention of 90%after 1000 cycles at 2 C,and a graphite||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)pouch full cell delivers an areal energy density of 6.8 mWh cm^(−2)at 8.848 mA(1.4 mA cm^(−2))with a high cathode loading of 134.9 *** results,together with the scalable production of the separator,reflect its promising potential in high-flux battery applications of separators that require both ultrahigh porosity and reliability.

关键词： Li deposition Li-ion batteries polytetrafluoroethylene separator ultrahigh porosity

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Dispersive behavior of high frequency Rayleigh waves propagating on an elastic half space

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Acta Mechanica Sinica 2021年第4期37卷 562-569,I0001页

作者： Ning Jia Zhilong Peng Jianjun Li Yin Yao Shaohua Chen Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures Beijing Institute of TechnologyBeijing 100081China School of Mechanical and Electrical Engineering Central South UniversityChangsha 410083China

When the wavelength of Rayleigh wave is comparable with nanometers,Rayleigh wave will become *** an interesting phenomenon cannot be predicted by the classical theory of *** order to reveal the internal mechanism and influencing factors of the dispersion,a model of Rayleigh wave propagating on an elastic half space is established and analyzed by a new theory of surface elastodynamics,in which the surface effect characterized by both the surface energy density and surface inertia is *** intrinsic nano-length scales,including the ratio of bulk surface energy density to bulk shear modulus and the ratio of surface mass density to bulk mass density,are *** is found that when the wavelength of Rayleigh wave is comparable with the two intrinsic nano-lengths,the surface effect becomes *** a result,dispersion of Rayleigh wave happens and even two Rayleigh waves with different wave speeds may ***,it is found that the effect of surface energy density would enhance the wave speed,while that of surface inertia would reduce *** the increase of wavelength,both effects gradually disappear and the Rayleigh wave speed degenerates to the classical *** results of this paper are not only helpful to understand the dispersive mechanism of elastic waves,but also helpful for the fine design and measurement of nanowave devices.

关键词： Rayleigh wave High frequency Dispersion Elastodynamics Surface effect

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Selective CO_(2)Electroreduction to Multi-Carbon Products on Organic-functionalized CuO Nanoparticles by Local Micro-Environment Modulation

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Nano-Micro Letters 2024年第12期16卷 120-132页

作者： Shan Ren Xi Cao Qikui Fan Zhimao Yang Fei Wang Xin Wang Licheng Bai Jian Yang Materials Interfaces Center Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongPeople’s Republic of China Key Laboratory of Functional Molecular Solids Ministry of EducationCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002AnhuiPeople’s Republic of China School of Physics Xi’an Jiaotong UniversityXi’an 710049ShaanxiPeople’s Republic of China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071GuangdongPeople’s Republic of China

Surface functionalization of Cu-based catalysts has demonstrated promising potential for enhancing the electrochemical CO_(2)reduction reaction(CO_(2)RR)toward multi-carbon(C2+)products,primarily by suppressing the parasitic hydrogen evolution reaction and facilitating a localized CO_(2)/CO concentration at the *** upon this approach,we developed surface-functionalized catalysts with exceptional activity and selectivity for electrocatalytic CO_(2)RR to C_(2+)in a neutral *** CuO nanoparticles coated with hexaethynylbenzene organic molecules(HEB-CuO NPs),a remarkable C_(2+)Faradaic efficiency of nearly 90%was achieved at an unprecedented current density of 300 mA cm^(-2),and a high FE(>80%)was maintained at a wide range of current densities(100-600 mA cm^(-2))in neutral environments using a flow ***,in a membrane electrode assembly(MEA)electrolyzer,86.14%FEC2+was achieved at a partial current density of 387.6 mA cm^(-2)while maintaining continuous operation for over 50 h at a current density of 200 mA cm^(-2).In-situ spectroscopy studies and molecular dynamics simulations reveal that reducing the coverage of coordinated K⋅H2O water increased the probability of intermediate reactants(CO)interacting with the surface,thereby promoting efficient C-C coupling and enhancing the yield of C_(2+)*** advancement offers significant potential for optimizing local micro-environments for sustainable and highly efficient C_(2+)production.

关键词： CO_(2)electroreduction to C_(2+) Neutral electrolyte Organic-functionalized CuO nanoparticles Local micro-environment

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