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Nano Research 2023年第5期16卷 8012-8017页

作者： Xinran Li Yipei li Changli Wang Huaiguo Xue Huan Pang Qiang Xu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials(SKLPM) SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory(SKAEM-JIL)Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of GuangdongDepartment of ChemistryDepartment of Materials Science and Engineering and SUSTech Academy for Advanced Interdisciplinary StudiesSouthern University of Science and Technology(SUSTech)Shenzhen 518055China

Cu-based materials are seldom reported as oxygen evolution reaction(OER)electrocatalysts due to their inherent electron orbital configuration,which makes them difficult to adsorb oxygen-intermediates during OER.Reasonably engineering the hierarchical architectures and the electronic structures can improve the performance of Cu-based OER catalysts,such as constructing multilevel morphology,inducing the porous materials,improving the Cu valence,building heterostructures,doping heteroatoms,etc.In this work,copper-1,3,5-benzenetricarboxylate(HKUST-1)octahedra in-situ grow on the Cu nanorod(NR)-supported N-doped carbon microplates,meanwhile an active layer of Cu(OH)_(2)forms on the surface of the original conductive Cu NRs.The octahedral HKUST-1,serving as a spacer between the microplates,greatly improves the porosity and increases the available active sites,facilitating the mass transport and electron transfer,thus resulting in greatly enhanced OER performance.

关键词： core–shell nanorod Cu@Cu(OH)_(2) metal–organic framework oxygen evolution reaction

Porous rod-like Ni_(2)P/Ni assemblies for enhanced urea electrooxidation

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Nano Research 2021年第5期14卷 1405-1412页

作者： Qing li Xinran Li Jiawei Gu Yanle li Ziqi Tian Huan Pang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou225009China Guangling College Yangzhou UniversityYangzhou225009China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo315201China

The urea oxidation reaction has attracted increasing attention.Here,porous rod-like Ni2P/Ni assemblies,which consist of numerous nanoparticle subunits with matching interfaces at the nanoscale have been synthesized via a simple phosphating approach.Density functional theory calculations and density of states indicate that porous rod-like Ni2P/Ni assemblies can significantly enhance the activity of chemical bonds and the conductivity compared with NiO/Ni toward the urea oxidation reaction.The optimal catalyst of Ni2P/Ni can deliver a low overpotential of 50 mV at 10 mA·cm−2 and Tafel slope of 87.6 mV·dec−1 in urea oxidation reaction.Moreover,the constructed electrolytic cell exhibits a current density of 10 mA·cm−2 at a cell voltage of 1.47 V and an outstanding durability in the two-electrode system.This work has provided a new possibility to fabricate metal phosphides-metal assemblies with advanced performance.

关键词： rod-like Ni_(2)P/Ni electrocatalyst urea electrooxidation overall urea electrolysis

Insight into the triggering effect of(Al,Mg,Ca,Mn)-oxy-sulfide inclusions on localized corrosion of weathering steel

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Journal of Materials Science & Technology 2021年第5期64卷 99-113页

作者： Pan liu Qinhao Zhang Xinran Li Jiming Hu Fahe Cao Department of Chemistry Zhejiang UniversityHangzhou310027China School of Materials Sun Yat-sen UniversityGuangzhou510006China

The surface properties of weathering steel(WS)is very important for its service performance and safety,and the localized corrosion induced by inclusions is closely related to the surface properties of WS and its application.In the current work,a common spherical(Al,Mg,Ca,Mn)-oxy-sulfide inclusion was selected to investigate the corrosion evolution of complex inclusion and its effect on localized corrosion on WS surface.The results indicate the inclusion in WS consists of(Ca,Mn)sulfides part and(Ca,Al,Mg)oxides part with complex core-shell structure.Locally preferential dissolution occurs in(Ca,Mn)sulfides part as well as metal matrix around the inclusions.Furthermore,both parts of the inclusions with poor conductivity and high-density dislocation at metal matrix around the inclusions was found,which suggests that traditional micro-galvanic corrosion cell may not be the cause of inclusion-induced localized corrosion on WS surface at initial stage of corrosion.The variation in maximum and average depth around the inclusion or selected region with immersion time indicates that localized corrosion induced by inclusions is overwhelmed by uniform corrosion of WS in the latter stage of immersion,then the rust formed on WS surface consists of two layers.

关键词： Weathering steel Inclusions Marine environment Localized corrosion Rust

Nitrogen rejection from low quality natural gas by pressure swing adsorption experiments and simulation using dynamic adsorption isotherms

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Chinese Journal of Chemical Engineering 2022年第2期35卷 120-129页

作者： xinran Zhang Hua Shang Jiangfeng Yang libo li Jinping li Research Institute of Special Chemicals College of Chemistry and Chemical EngineeringTaiyuan University of TechnologyTaiyuan 030024China Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024China

In order to remove N_(2) from low quality natural gas,a mathematical model has been established by Aspen adsorption,using the CH_(4)-selective sorbent silicalite-1 pellets.The dynamic adsorption isotherm was first simulated by breakthrough simulation of a CH_(4)/N_(2) mixture at different adsorption pressures and feed flow rates based on breakthrough experiments.The resulting simulated CH_(4) dynamic adsorption amounts were very close to the experimental data at three different adsorption pressures(100,200,and 300 kPa).Moreover,a single-bed,three-step pressure swing adsorption(PSA)experiment was performed,and the results were in good agreement with the simulated data,further corroborating the accuracy of the gas dynamic adsorption isotherm obtained by the simulation method.Finally,based on the simulated dynamic adsorption isotherm of CH_(4) and N_(2),a four-bed,eight-step PSA process has been designed,which enriched 75%(vol)CH_(4) and 80%(vol)CH_(4) to 95%(vol)and 99%(vol),and provided 99%(vol)recovery.

关键词： Natural gas Silicalite-1 Simulation Dynamic adsorption Pressure swing adsorption process

Increasing stiffness promotes pulmonary retention of ligand-directed dexamethasone-loaded nanoparticle for enhanced acute lung inflammation therapy

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Bioactive Materials 2023年第2期20卷 539-547页

作者： Yinglan Yu Shujie li Yuan Yao xinran Shen lian li Yuan Huang Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu610041China

Inhaled nanoparticles(NPs)need to penetrate the bronchial mucosa to deliver drug payloads deeply in the lung for amplified local therapy.However,the bronchial mucociliary barrier eliminates NPs rapidly,which considerably limits their mucosal penetration.In this study,we find that surface ligand modification and stiffness adjustment of NPs contribute to the significantly enhanced bronchial mucosal absorption and pulmonary retention of inhaled drugs.We utilize neonatal Fc receptor ligand(FcBP)to modify the rationally designed low stiffness NPs(Soft-NP)and high stiffness NPs(Stiff-NP)to target bronchial mucosa.In an acute lung inflammation rat model,after intranasal administration with dexamethasone-loaded NPs,Stiff-NP endowed with FcBP displays superior therapeutic effects.The in vitro data demonstrate that the promotion effect of FcBP to bronchial mucosal absorption of Stiff-NP dominates over Soft-NP.This could be attributed to the higher affinity between ligand-receptor when incorporating FcBP on the Stiff-NP surface.Meanwhile,high stiffness modulates more actin filaments aggregation to mediate endocytosis,along with strengthened Ca2+signal to enhance exocytosis.Conclusively,we highlight that FcBP-modified NPs with higher stiffness would be a potential pulmonary drug delivery system.

关键词： Pulmonary drug delivery Mucus barrier Epithelial barrier Stiffness ligand modification Acute lung inflammation

Micro Morphology of Soot Particles Sampled from High Pressure Jet Flames of Diesel from Direct Coal liquefaction

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Journal of Thermal Science 2022年第6期31卷 2155-2170页

作者： WANG Tengfei QIAO Xinqi li Tie WU Gang WANG xinran Key Laboratory of Power Machinery and Engineering Ministry of EducationShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Merchant Marine College Shanghai Maritime UniversityShanghai 201306China

Diesel from direct coal liquefaction(DDCL) is a new type of engine alternative energy. But its hydrocarbon composition and physicochemical properties are quite different from those of Petro diesel. In this study, a premixed constant volume combustion chamber(CVCC) system with soot particle sampling devices was built. The soot particles in the spray flame were sampled and photographed by thermophoresis probe and transmission electron microscope(TEM). An automatic processing code based on Matlab software was developed to process the TEM images and extract the micro morphology parameters of the soot particles. This study has systematically studied the effects of sampling location, injection pressure, ambient density and oxygen concentration on the micro morphology of soot particles. The ambient density refers to the initial gas density in the CVCC. The results showed that various morphologies and sizes of soot particles coexisted in the upstream of the spray flame. During the evolution of soot particles from upstream to downstream in the flame, the size of soot aggregates gradually decreased, while the maturity of soot aggregates increased. With the increase of injection pressure, ambient density and oxygen concentration, the average sizes of soot aggregates and primary soot particles decreased, but the fractal dimensions of soot aggregates increased gradually. Under the same combustion condition and in-flame sampling location, the average projection area, gyration radius and primary soot diameter of soot aggregates produced by DDCL were significantly lower than those of Petro diesel. The structure of soot particles from DDCL was more compact than that of Petro diesel.

关键词： diesel from direct coal liquefaction in-flame sampling soot morphology TEM

New analytic solutions to 2D transient heat conduction problems with/without heat sources in the symplectic space

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Applied Mathematics and Mechanics(English Edition) 2022年第8期43卷 1233-1248页

作者： Dian XU xinran ZHENG Dongqi AN Chao ZHOU Xiuwen HUANG Rui li State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering Mechanicsand International Research Center for Computational MechanicsDalian University of TechnologyDalianLiaoning Province116024China

The two-dimensional(2D)transient heat conduction problems with/without heat sources in a rectangular domain under different combinations of temperature and heat flux boundary conditions are studied by a novel symplectic superposition method(SSM).The solution process is within the Hamiltonian system framework such that the mathematical procedures in the symplectic space can be implemented,which provides an exceptional direct rigorous derivation without any assumptions or predetermination of the solution forms compared with the conventional inverse/semi-inverse methods.The distinctive advantage of the SSM offers an access to new analytic heat conduction solutions.The results obtained by the SSM agree well with those obtained from the finite element method(FEM),which confirms the accuracy of the SSM.

关键词： heat conduction heat source symplectic superposition method(SSM)

light-emission organic solar cells with MoO_(3):Al interfacial layer-preparation and characterizations

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Frontiers of Optoelectronics 2021年第4期14卷 499-506页

作者： Xinran Li Yanhui LOU Zhaokui WANG College of Energy Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123China

A light-emitting organic solar cell(LE-OSC)with electroluminescence(EL)and photovoltaic(PV)properties is successfully fabricated by connecting the EL and PV units using a MoO_(3):Al co-evaporation interfacial layer,which has suitable work function and good transmittance.PV and EL units are fabricated based on poly(3-hexylthiophene)(P3HT)-indene-C60 bisadduct(IC60BA)blends,and 4,4′-bis(N-carbazolyl)biphenyl-factris(2-phenylpyridine)iridium(Ir(ppy)3),respectively.The work function and the transmittance of the MoO_(3):Al co-evaporation are measured and adjusted by the ultraviolet photoelectron spectroscopy and the optical spectrophotometer to obtain the better bi-functional device performance.The forward-and reverse-biased current density-voltage characteristics in dark and under illumination are evaluated to better understand the operational mechanism of the LE-OSCs.A maximum luminance of 1550 cd/m^(2)under forward bias and a power conversion efficiency of 0.24%under illumination(100 mW/cm^(2))are achieved in optimized LE-OSCs.The proposed device structure is expected to provide valuable information in the film conditions for understanding the polymer blends internal conditions and meliorating the film qualities.

关键词： organic solar cell(OSC) polymer-fullerene light emission MoO_(3):Al interfacial layer

Epidemiological characteristics of pulmonary tuberculosis in patients with pneumoconiosis based on its social determinants and risk factors in China:a cross-sectional study from 27 provinces

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Chinese Medical Journal 2022年第24期135卷 2984-2997页

作者： Huanqiang Wang Huaping Dai Jiayu He Xiangpei Lyu xinran Zhang Tao li Department of Occupational Respiratory Disease National Institute for Occupational Health and Poison ControlChinese Center for Disease Control and PreventionBeijing 100050China National Center for Respiratory Medicine National Clinical Research Center for Respiratory DiseasesInstitute of Respiratory MedicineChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100029China Department of Pulmonary and Critical Care Medicine Center of Respiratory MedicineChina-Japan Friendship HospitalBeijing 100029China Department of Clinical Research and Data Management Center of Respiratory MedicineChina-Japan Friendship HospitalBeijing 100029China

Background:Patients with pneumoconiosis have an elevated risk of contracting pulmonary tuberculosis(PTB)and need particular attention.However,extensive population-based studies on the prevalence of PTB in patients with pneumoconiosis have not been reported in China since 1992.This study aimed to investigate the epidemiological characteristics of PTB in patients with pneumoconiosis based on its social determinants and risk factors in China.Methods:Based on the Commission on Social Determinants of Health(CSDH)framework,data were obtained from a questionnaire survey of patients with pneumoconiosis from China’s 27 provinces(autonomous regions,municipalities)from December 2017 to June 2021.By chi-square and multivariate logistic regression analyses,the epidemiological characteristics of PTB in the patients were identified based on its prevalence and odds ratio(OR)and associated social determinants and risk factors.The population attributable fractions(PAFs)of significant risk factors were also calculated.Results:The prevalence of PTB in patients with pneumoconiosis(n=10,137)was 7.5%(95%confidence interval[CI]:7.0-8.0%).Multivariate logistic regression analysis showed that risk factors included in-hospital exposure to patients with PTB(OR=3.30,95%CI:2.77-3.93),clinically diagnosed cases(OR=3.25,95%CI:2.42-4.34),and northeastern regions(OR=2.41,95%CI:1.76-3.31).In addition,lack of work-related injury insurance(WRII),being born in a rural area,being unemployed,living in western regions,household exposure to patients with PTB,smoking,being underweight,complications of pulmonary bullae or pneumothorax,hospitalization history,and former drinkers among the rural patients were also statistically significant risk factors.Being born in a rural area,lack of WRII and in-hospital exposure to patients with PTB had higher PAFs,which were 13.2%(95%CI:7.9-18.5%),12.5%(95%CI:8.3-16.7%),and 11.6%(95%CI:8.8-14.3%),respectively.Conclusion:The prevalence of PTB in pneumoconiosis remains high in China;it is basically in line with the CSDH m

关键词： Pulmonary tuberculosis Pneumoconiosis Social determinants Risk factors

Activating sulfur oxidation reaction via six-electron redox mesocrystal NiS2 for sulfur-based aqueous batteries

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National Science Review 2023年第6期10卷 64-74页

作者： Zhoudong Yang Boya Wang Yongjin Chen Wanhai Zhou Hongpeng li Ruizheng Zhao Xinran Li Tengsheng Zhang Fanxing Bu Zaiwang Zhao Wei li Dongliang Chao Dongyuan Zhao Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials College of Chemistry and Materials Fudan University Center for High Pressure Science and Technology Advanced Research

Sulfur-based aqueous batteries(SABs) are deemed promising candidates for safe,low-cost,and high-capacity energy storage.However,despite their high theoretical capacity,achieving high reversible value remains a great challenge due to the thermodynamic and kinetics problems of elemental sulfur.Here,the reversible six-electron redox electrochemistry is constructed by activating the sulfur oxidation reaction(SOR) process of the elaborate mesocrystal NiS2(M-NiS2).Through the unique 6e-solid-to-solid conversion mechanism,SOR efficiency can reach an unprecedented degree of ca.96.0%.The SOR efficiency is further reve aled to be closely associated with the kinetics feasibility and thermodynamic stability of the M-NiS2intermedium in the formation of elemental sulfur.Benefiting from the boosted SOR,compared with the bulk electrode, the M-NiS2electrode exhibits a high reversible capacity(1258 mAh g-1),ultrafast reaction kinetics(932 mAh g-1at 12 A g-1),and long-term cyclability(2000 cycles at 20 A g-1).As a proof of concept,a new M-NiS2‖ Zn hybrid aqueous battery exhibits an output voltage of 1.60 V and an energy density of 722.4 Wh kgcath-1,which opens a new opportunity for the development of high-energy aqueous batteries.

关键词： sulfur-based aqueous battery mesocrystal material sulfur oxidation reaction high-energy aqueous battery six-electron redox