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Identifying the dynamic behaviors in co.plete reco.struction of co.based co.plex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi Yao Liu Yi Huang Key Laboratory of green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University co.lege of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. co.siderable research efforts have shown that self-reco.struction occurs on these nanomaterials under operating co.ditions of OER process. However, most of them undergo inco.plete reco.struction with limited thickness of reco.struction layer, leading to low co.ponent utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in co.plete reco.struction of co.based co.plexes during OER. The hollow phytic acid（PA） cross-linked co.e-based co.plex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and co.plete reco.struction. A series of experiment characterizations demonstrate that the reco.struction process includes the fast substitution of PA by OH-to form co.Fe）(OH)xand subsequent potential-driven oxidation to co.Fe）OOH. The obtained co.eOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe inco.poration can result in the electron rearrangement of reco.structed co.eOOH and optimization of their electronic structure,acco.nting for the enhanced OER activity. The work provides new insights into co.plete reco.struction of metal-based co.plexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： co.plete reco.struction co.based co.plex Precatalysts Oxygen evolution reaction

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SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

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co.puter Modeling in Engineering & Sciences 2025年第1期142卷 385-404页

作者： Chongzhen Zhang Zhichen Liu Xiangrui Xu Fuqiang Hu Jiao Dai Baigen Cai Wei Wang School of Automation and Intelligence Beijing Jiaotong UniversityBeijing100044China Shuohuang Railway development co. Ltd.National Energy GroupCangzhou062350China Beijing Key Laboratory of Security and Privacy in Intelligent Transportation School of Computer Science and TechnologyBeijing Jiaotong UniversityBeijing100044China

In the realm of Intelligent Railway Transportation Systems,effective multi-party co.laboration is crucial due to co.cerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such co.laboration,allowing diverse entities to co.lectively enhance machine learning models without the need to share sensitive training ***,existing works have highlighted VFL’s susceptibility to privacy inference attacks,where an honest but curious server co.ld potentially reco.struct a client’s raw data from embeddings uploaded by the *** vulnerability poses a significant threat to VFL-based intelligent railway transportation *** this paper,we introduce SensFL,a novel privacy-enhancing method to against privacy inference attacks in ***,SensFL integrates regularization of the sensitivity of embeddings to the original data into the model training process,effectively limiting the information co.tained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reco.struction of the original data from the *** experiments were co.ducted on four distinct datasets and three different models to demonstrate the efficacy of *** results show that SensFL can effectively mitigate privacy inference attacks while maintaining the accuracy of the primary learning *** results undersco.e SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security co.cerns in co.laborative learning environments.

关键词： Vertical federated learning privacy defenses

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Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： Peng Zheng Wang Zhou Ying Mo Biao Zheng Miaomiao Han Qin Zhong Wenwen Yang Peng Gao Lezhi Yang Jilei Liu co.lege of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area Institute for Innovation Hunan University Changsha Research Institute of Mining & Metallurgy co. LTD.

Hard carbon （HC） has been co.sidered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectrosco.y/electrochemical impedance spectrosco.y （FTIR/EIS） and X-ray photoelectron spectrosco.y （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping co.tent exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectrosco.y

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Mutual-structure weighted guided image filtering for depth map restoration

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Optoelectronics Letters 2025年第1期21卷 51-56页

作者： LIU Zijian SONG Jian CHEN Quanmin XU Jiangtao Tianjin Key Laboratory of Imaging and Sensing Microelectronic technology School of Microelectronics Tianjin University Spikesee technology co. Ltd.

Although guided image filtering(GIF) is known for preserving edges and fast co.putation, it may produce inaccurate outputs in depth map restoration. In this paper, a novel co.fidence-weighted GIF called mutual-structure weighted GIF(MSWGIF) is proposed, which replaces the mean filtering strategy in GIF during handling overlapping windows. The co.fidence value is co.posed of a depth term and a mutual-structure term, where the depth term is utilized to protect the edges of the output, and the mutual-structure term helps to select accurate windows during the structure characteristics of the guidance image are transferred to the output. Experimental results show that MSWGIF reduces the root mean square error(RMSE) by an average of 12.37%, and the average growth rate of co.relation(co.R) is 0.07% on average. Additionally, the average growth rate of structure similarity index measure(SSIM) is 0.34%.

关键词： Wiener filtering

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development of Chuanxiong Toothpaste and Establishment of Its Quality Standard

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China Detergent & co.metics 2021年第2期6卷 49-54页

作者： Duan Xin Wu Xuemei Wu Yongchao Yang Yu Hu Changjiang sichuan green herb technology development co. Ltd.China

The quality standard of Chuanxiong toothpaste was *** was used to determine the co.tent of ferulic acid in Chuanxiong toothpaste and TLC was used to identify the Chuanxiong in the *** co.tent of active ingredients extracted from Traditional Chinese medicine by deco.ting water was high,and the co.responding toothpaste had a good hemostatic *** identification by use of thin layer chromatography(TLC)showed with clear spots and strong specificity for both the test product and the co.trol product(Levistilide A)as observed under ultraviolet light(254 nm)with n-hexane-ethyl acetate(3∶1)as the developing agent,which co.ld be used as the basis for the qualitative identification of Chuanxiong *** ferulic acid in the range of 0.019,3~0.481,7μg mL^(-1) showed a good linear relationship with the peak area and the reco.ery rate of sample was between 99.5%and 101.2%.This method was simple,stable and reliable,and co.ld be used as the quality co.trol method for ferulic acid in Chuanxiong toothpaste.

关键词： Chuanxiong toothpaste development ferulic acid HPLC TLC quality standard

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Recent progress in co.structing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di Zhang Pengfei Lv Wei Qin Xin He Yuanhua He Civil Aircraft Fire Science and Safety Engineering Key Laboratory of sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural co.ponents and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of co.positions in fluorinated SEI that work synergistically to enhance SEI *** instance,co.bining co.pounds with LiF can further enhance the mechanical strength and ionic co.ductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,inco.porating polymers with LiF offers balanced improvements in interfacial toughness and ionic co.ductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys co.bined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers co.prehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability

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Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： co.g Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan Han Qifeng Han Yi‑Bing Cheng Yong Peng State Key Laboratory of Advanced technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China co.lege of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix co.posites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been co.sidered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of co.mercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve co.erage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the inco.pletely passivated trap states caused interface reco.bination.A surface reco.struction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power co.version efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation undersco.es the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface reco.bination

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Mechanistic insight into the synergy between nickel single atoms and nanoparticles on N-doped carbon for electroreduction of co.

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Journal of Energy Chemistry 2025年第1期100卷 327-336页

作者： Mingdong Sun Wenwen Guan Cailing Chen Chao Wu Xiaoling Liu Biao Meng Tao Chen Yu Han Jun Wang Shibo Xi Yu Zhou State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Institute of Sustainability for Chemicals Energy and Environment A*STAR (Agency for Science Technology and Research) co.lege of Materials Science and Engineering Sichuan University

The synergy of single atoms （SAs） and nanoparticles （NPs） has demonstrated great potential in promoting the electrocatalytic carbon dioxide reduction reaction （co.RR）;however,the rationalization of the SAs/NPs proportion remains one challenge for the catalyst ***,a Ni2+-loaded porous poly（ionic liquids）(PIL) precursor synthesized through the free radical self-polymerization of the ionic liquid monomer,1-allyl-3-vinylimidazolium chloride,was pyrolyzed to prepare the Ni,N co.doped carbon materials,in which the proportion of Ni SAs and NPs co.ld be facilely modulated by co.trolling the annealing *** catalyst Ni-NC-1000 with a moderate proportion of Ni SAs and NPs exhibited high efficiency in the electrocatalytic co.version of co.into *** Ni K-edge X-ray absorption near-edge structure （XANES） spectra and theoretical calculations were co.ducted to gain insight into the synergy of Ni SAs and *** charge transfer from Ni NPs to the surrounding carbon layer and then to the Ni SAs resulted in the electron-enriched Ni SAs active *** the electroreduction of co.,the co.xistence of Ni SAs and NPs strengthened the co.activation and the affinity towards the key intermediate of*co.H,lowering the free energy for the potential-determining*co.→*co.H step,and therefore promoted the catalysis efficiency.

关键词： Single atom catalyst Synergy effect Carbon catalyst Electrocatalysis

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Dispersion and Filler Network Structure of Fibrillar Silicates in Elastomers

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Chinese Journal of Polymer Science 2016年第7期34卷 858-872页

作者： Zhao Li Hai-bin Sun co.g-yi Li Yong-lai Lu Wang Qiao 宁南英 Li-qun Zhang 田明 Aeolus Tyre co. Ltd State Key Laboratory of Organic-Inorganic co.posites Beijing University of Chemical Technology Petro China sichuan Petrochemical co. Ltd Office of Scientific Research and development Beijing University of Chemical Technology

The dispersion and filler network of fibrillar silicate（FS） in elastomers were studied. The results showed that a good dispersion of FS in matrix during mechanical blending in unvulcanized co.posites co.tributed to a strong FS filler network, different from that of traditional reinforcing fillers. Meanwhile, the filler re-aggregation during vulcanization caused by the overlapping and intertwining of FS further strengthened the filler network. The factors including Mooney visco.ity and molecular polarity of elastomer, type and amount of silane co.pling agents used for filler modification, that may influence the filler network, were studied. Our study helps us to understand the mechanism for the formation of filler network of FS in elastomers and provides guidance for the preparation of high performance FS/elastomer co.posites.

关键词： Fibrillar silicates Dispersion Filler network Elastomers

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Dynamics Simulation on the Associative Properties of Amphiphilic Functional Monomer Modified Polyacrylamide co.olymers

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Chinese Journal of Polymer Science 2015年第4期33卷 540-553页

作者： Pan Zhang Lin Yao Jian-hui Luo Bin Ding 周歌 Bo Jiang Key Laboratory of green Chemistry and technology Ministry of EducationCollege of ChemistrySichuan University Research Institute of Petroleum Explorations and development of Petro China

A kind of amphiphilic functional monomer was selected to modify polyacrylamide （PAM） or partially hydrolyzed polyacrylamide （HPAM）. The relative properties of the modified polyacrylamide （HM-PAM） and modified partially hydrolyzed polyacrylamide （HM-HPAM） such as radius of gyration （Rg）, hydrodynamic radius （RH）, and radial distribution functions （RDFs） have been studied to find the intrinsic relation between the microstructure of the polymer chain and the intrinsic visco.ities with changing the amotmt of modified monomers from 1% to 4%. The simulation results show that, co.pared to HPAM, HM-HPAM has a better performance in increasing visco.ity when the percentage of modified monomers is 2% and has a stronger salt tolerance when the modified monomers is 4%. Furthermore, a co.plex hydrogen bonding network was revealed with the analysis of radial distribution functions （RDFs） and the pair co.relation function was used to investigate the diffusivity of Na^＋ and carbon atoms in the co.^- group.

关键词： Intrinsic visco.ity Molecular dynamic simulation Pair co.relation function Radial distribution function Salt-tolerance.

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