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All-fluorinated electrolyte for non-flammable batteries with ultra-high specific capacity at 4.7 V

Green Energy & Environment 2024年第10期9卷 1601-1609页

作者： Zhe Wang Zhuo Li Jialong Fu Sheng Zheng Rui Yu Xiaoyan Zhou Guanjie He Xin Guo State Key Laboratory of Material Processing and Die&Mould Technology Laboratory of Solid State IonicsSchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China Electrochemical Innovation Lab Department of Chemical EngineeringUniversity College London20 Gordon StreetLondon WC1E 7JEUK

Li metal batteries(LMBs)with LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)(NMC811)cathodes could release a specific energy of>500 Wh kg^(-1) by increasing the charge ***,high-nickel cathodes working at high voltages accelerate degradations in bulk and at interfaces,thus significantly degrading the cycling lifespan and decreasing the specific ***,we rationally design an all-fluorinated electrolyte with addictive tri(2,2,2-trifluoroethyl)borate(TFEB),based on 3,3,3-fluoroethylmethylcarbonate(FEMC)and fluoroethylene carbonate(FEC),which enables stable cycling of high nickel cathode(LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2),NMC811)under a cut-off voltage of 4.7 V in Li metal *** electrolyte not only shows the fire-extinguishing properties,but also inhibits the transition metal dissolution,the gas production,side reactions on the cathode ***,the NMC811||Li cell demonstrates excellent performance by using limited Li and high-loading cathode,delivering a specific capacity>220 mA h g^(-1),an average Coulombic efficiency>99.6%and capacity retention>99.7%over 100 cycles.

关键词： Fluorinated electrolyte Li metal batteries Solid electrolyte interphase Cathode electrolyte interphase Coulombic efficiency

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synthesis of hierarchical SAPO-11-based catalysts with Al-based metal-organic framework derivative as mesoporogen to improve n-decane branched isomerization

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Petroleum Science 2022年第6期19卷 3171-3181页

作者： Xue-Man Wang Cheng-Long Wen Yu Fan State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Centerand School of Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu213164China

Hierarchical SAPO-11 molecular sieve(ACS-11) was successfully synthesized employing the Al2O3/carbon(Al_(2)O_(3)/C) composite obtained through the pyrolysis of Al-based metal-organic framework(Al-MOF-96)as *** other carbon-based mesoporogens with strong hydrophobicity,the Al_(2)O_(3)/C interacts with phosphoric acid and generates the AlPO_(4)/C structure,which promotes the Al2O3/C dispersion in the synthesis gel of SAPO-11 and avoids the phase separation between *** Al_(2)O_(3)/C as mesoporogen decreases the crystallite size of SAPO-11 via preventing the aggregation of ***,the addition of Al_(2)O_(3)/C improves the Si distribution in the ACS-11 ***,ACS-11 has smaller crystallites,more mesopores,and a greater amount of medium Bronsted acid centers than the conventional microporous SAPO-11 and the SAPO-11 synthesized using activated carbon as *** corresponding Pt/ACS-11 catalyst exhibits the maximal selectivity to multi-branched C10isomers(23.28%) and the minimal cracking selectivity(15.83%) in n-decane hydroisomerization among these *** research provides a new approach for preparing hierarchical silicoaluminophosphate molecular sieve-based catalysts to produce high-quality fuels.

关键词： Hierarchical SAPO-11 Al_(2)O_(3)/C composite Hydroisomerization Branched isomers

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Tunable Atomic-Scale Steps and Cavities Break Both Stability and Activity Limits of CoO_(x) Nanosheets to Catalyze Oxygen Evolution

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Renewables 2023年第4期1卷 465-473页

作者： Min Yu Xueqin Mu Weitao Meng Ziyue Chen Yu Tong Yu Ge Shiyuan Pang Shengjie Li Suli Liu Shichun Mu Key Laboratory of Advanced Functional Materials of Nanjing Nanjing Xiaozhuang UniversityNanjing 211171 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070

A highly active interface can enhance the catalytic efficiency of catalysts toward the oxygen evolution reaction(OER).However,accurately tuning their atomic interface configurations of defects with sufficient activity and stability remains a grand ***,we report on breaking the activity and stability limits of CoO_(x) nanosheets in the OER process by constructing copious high-energy atomic steps and cavities,in which S or Ce atoms simultaneously replace O or Co atoms from CoO_(x),thus achieving high-energy atomic interface Ce,O-Co_(3)S_(4) *** combining in situ characterization and density functional theory calculations,it is shown that the unique orbital coupling between Ce-4f,O(S)-2p,and Co-3d causes it to be closer to the Fermi level,leading to faster charge transfer *** importantly,the novel structure breaks the stability limit of cobalt sulfide with planar defects,which gives high catalytic activity and stability in 0.1 M KOH solutions,better than commercial RuO_(2) and IrO_(2) noble metal *** expected,Ce,O-Co_(3)S_(4) possesses much better turnover frequency activity(0.064 s^(-1))at an overpotential of 300 mV,which is ~7 times larger than that of Ce-CoO_(x)(0.009 s^(-1)).Our work presents a new perspective of designing catalysts with atomically dispersed orbital electronic coupling defects toward efficient OER electrocatalysis.

关键词： atomic replacement amorphous structures interface active centers atomic defect oxygen evolution reaction

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Microstructures and mechanical properties of B4C–TiB2 ceramics fabricated by reactive sintering using B4C–Ti mixture

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Ceramics International 2025年

作者： Cui, Yi Bao, Sizhuo Sun, Yan Zhang, Ao He, Qianglong Wang, Weimin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China

In this study, B4C–TiB2 ceramics were prepared via reactive sintering using B4C–Ti as the raw material. By investigating the sintering curve, microstructures, and mechanical properties at different sintering temperatures, the liquid-phase sintering environment provided by Ti melting was found to play a key role in densification. The high-speed densification stage occurs between 1800 and 1900 °C, which improves the comprehensive properties of B4C–TiB2 composite ceramics at 1900 °C. B4C–TiB2 composites achieved the best comprehensive properties at 1950 °C. Relative density, Vickers hardness, bending strength, and fracture toughness were 99.3 %, 32.6 GPa, 433 MPa, and 5.25 MPa m1/2, respectively. Vickers hardness and bending strength were affected by density, while fracture toughness was also affected by the TiB2 phase distribution. Additionally, improvement in fracture toughness was the result of the joint action of crack deflection, crack bridging, crack branching, and microcracking mechanisms. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Ceramic materials

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Upconversion nanorods anchored metal-organic frameworks via hierarchical and dynamic assembly for synergistic therapy

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Nano Research 2022年第8期15卷 7533-7541页

作者： Wenfeng Guo Li-Li Tan Qiang Li Juanmin Li Li Shang State Key Laboratory of Solidification Processing School of Materials Science and EngineeringChongqing Science and Technology Innovation CenterNorthwestern Polytechnical UniversityXi’an 710072China

Heterogeneous materials made of metal-organic frameworks(MOFs)and optically active nanomaterials have attracted intensive interests in recent years due to their distinct physicochemical properties,but controllable fabrication of these materials remains challenging *** this work,we report a new strategy to in situ fabricate heterogeneous nanomaterials based on UiO-66-NH2 and upconversion nanorods(UCNRs)via a hierarchical and dynamic assembly ***–satellite structured UiO-66-NH2@UCNRs have been successfully fabricated,and the formation mechanism was thoroughly investigated by the combined use of scanning electron microscopy(SEM)and Fourier transform infrared(FTIR)*** results revealed the involvement of three main stages:supramolecular assembly of UiO-66-NH2 precursors with UCNRs,nucleation and growth of UiO-66-NH2 crystal,and dynamic assembly with UCNRs accompanied by Ostwald ***,based on the hereditary optical and porous features of the heterogeneous nanomaterials,an enhanced multimodal synergistic anticancer platform has been established by integrating near-infrared(NIR)-triggered photodynamic therapy(PDT)and pH-triggered anticancer drug delivery,as confirmed by cellular *** present study provides a new avenue for developing advanced functional heterogeneous nanomaterials via the hierarchical and dynamic assembly strategy.

关键词： heterogeneous nanomaterials metal-organic frameworks upconversion nanorods assembly therapy

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A comprehensive review on catalysts for seawater electrolysis

Advanced Powder Materials

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advanced Powder materials 2024年第5期3卷 111-134页

作者： Jihong Li Genyuan Fu Xiaokun Sheng Guodong Li Hui Chen Kaiqian Shu Yan Dong Tongzhou Wang Yida Deng State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and Engineering Hainan UniversityHaikou570228China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun130012China State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071China

Seawater electrolysis is a sustainable energy conversion technology that generates clean energy by splitting seawater into hydrogen and ***,the catalysts used in seawater electrolysis often face significant stability challenges because of the high concentration of salt ions and other impurities present in *** review aims to discern the pivotal factors influencing catalyst stability in seawater electrolysis,elucidate the corrosion and electrochemical degradation mechanisms,and delve into the various strategies employed to enhance catalyst *** strategies encompass catalyst material selection,surface modification techniques,catalyst support materials,and catalyst design *** gaining deeper insights into the obstacles and innovations concerning catalyst stability in seawater electrolysis,this review strives to expedite progress toward the commercialization and widespread adoption of this technology as a renewable and feasible approach for hydrogen ***,the goal is to foster a cleaner and more sustainable future by enabling the efficient and enduring generation of hydrogen from seawater.

关键词： Seawater electrolysis Green hydrogen Stability Catalyst corrosion Selectivity

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Atomic cerium-doped CuO_(x) catalysts for efficient electrocatalytic CO_(2) reduction to CH_(4)

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Chinese Chemical Letters 2025年第1期36卷 326-331页

作者： Xiangyu Chen Aihao Xu Dong Wei Fang Huang Junjie Ma Huibing He Jing Xu Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi UniversityNanning 530004China State Key Laboratory of Green Chemical Engineering and Industrial Catalysis School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Copper(Cu)is widely used in the electrochemical carbon dioxide reduction reaction(ECO_(2)RR)for efficient methane(CH_(4))***,the morphology and valence of Cu-based catalysts are usually unstable under reaction *** this work,we prepared Ce-doped MOF-199 precursor(Ce/HKUST-1)and further obtained nanoparticle electrocatalyst Ce/CuO_(x)-NPs by cyclic voltammetry(CV)*** Faradic efficiency of methane(FE_(CH_(4)))maintains above 62%within a broad potential window of 350 mV and the maximum FE_(CH_(4))reaches 67.4%with a partial current density of 293 mA/cm^(2)at-1.6 V vs.a reversible hydrogen *** characterization and theoretical calculations revealed that the unique electronic structure and large ionic radius of Cerium(Ce)not only promoted the generation of key intermediate*CO but also lowered energy barrier of the*CO to*CHO *** study provides a novel and efficient catalyst for methane production in ECO_(2)RR and offers profound insights into constructing high performance Cu-based catalysts.

关键词： ECO_(2)RR Cu-based catalyst Structure evolution DFT calculation

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Hydrogenation kinetic of alkenes and aromatics over NiMo hydrotreatment catalysts

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Chinese Journal of Chemical Engineering 2025年第3期79卷 11-22页

作者： Wenbo Li Xinyao Fu Weiming Zhai Xingyang Huang Wenbin Chen Chen Zhang Wei Zhang Cuiqing Li Yong Luo Feng Liu Mingfeng Li Beijing Key Laboratory of Enze Biomass Fine Chemicals School of New Materials and Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617China SINOPEC Research Institute of Petroleum Processing Co. LTDBeijing 100083China State Key Laboratory of Organic-Inorganic Composites Research Center of the Ministry of Education for High Gravity Engineering and TechnologyBeijing University of Chemical TechnologyBeijing 100029China

Hydrotreatment is a critical process in the petrochemical industry to produce gasoline or *** kinetic models and accurate kinetic parameters of hydrotreatment reactions are important for the industrial reactor design and scale-up *** this work,hydrogenation kinetics of alkene and aromatic model compounds were studied thoroughly to provide deep understanding on alkene and aromatic hydrogenation behaviors in gasoline and diesel *** NiMo hydrotreatment catalysts were used to obtain experimental data of hydrogenation ***,1-octene,naphthalene and phenanthrene were used as model compounds of alkenes and ***-Hinshelwood-Hougen-Watson(LHHW)kinetic models for hydrotreatment reactions were *** addition,phase equilibrium calculations were combined with kinetic study,and it is discovered that using calculated liquid phase compositions as kinetic model input could greatly enhance the accuracy of kinetic models and the quality of kinetic parameters,leading to higher accordance with experimental *** kinetic models and phase equilibrium analysis,the effect of reaction conditions(temperature,pressure,and H_(2)/oil ratio)on reaction rates were also predicted and *** importance of phase equilibrium in kinetic analysis for hydrotreating reactions was demonstrated in this study,which provides an effective approach for future hydrotreatment reactor design and catalyst optimization.

关键词： Kinetic Hydrogenation Phase equilibria H_(2)/oil ratio

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Aqueous batteries:from laboratory to market

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国家科学评论（英文版） 2023年第11期10卷 85-88页

作者： Xikun Zhang Pengcheng Xing Thomas L.Madanu Jing Li Jie Shu Bao-Lian Su Laboratory of Inorganic Materials Chemistry(CMI) University of NamurBelgium School of Materials Science and Chemical Engineering Ningbo UniversityChina Laboratory of Inorganic Materials Chemistry(CMI) University of NamurBelgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyChina

As estimated up to 2022,global installed capacity of lithium-ion batteries(LIBs)has increased dramatically from 148 to 580 GWh in the past five *** wide range of applications is mainly at-tributed to their high energy density,ex-cellent cycle life,and low self-discharge rate[1].However,with the continuous promotion of the applications in various fields,the limitations of LIBs have be-come apparent,such as high cost and safety issues.

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Machine learning in energy storage materials

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Interdisciplinary materials 2022年第2期1卷 175-195页

作者： Zhong-Hui Shen Han-Xing Liu Yang Shen Jia-Mian Hu Long-Qing Chen Ce-Wen Nan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center of Smart Materials and DevicesWuhan University of TechnologyWuhanChina International School of Materials Science and Engineering Wuhan University of TechnologyWuhanChina State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingChina Department of Materials Science and Engineering University of Wisconsin-MadisonMadisonWisconsinUSA Department of Materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA

With its extremely strong capability of data analysis,machine learning has shown versatile potential in the revolution of the materials research ***,taking dielectric capacitors and lithium‐ion batteries as two representa-tive examples,we review substantial advances of machine learning in the research and development of energy storage ***,a thorough discussion of the machine learning framework in materials science is ***,we summarize the applications of machine learning from three aspects,including discovering and designing novel materials,enriching theoretical simulations,and assisting experimentation and ***,a brief outlook is highlighted to spark more insights on the innovative implementation of machine learning in materials science.

关键词： dielectric capacitor energy storage lithiumion battery machine learning

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