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Science China Chemistry 2025年

作者： Min Wu mingjun nan Shumin Liu Caihe Zhong Lin Qiao Huamin Zhang Xiangkun Ma Department of Materials Science and Engineering Dalian Maritime University Division of Energy Storage Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences

With the increasing demand for energy storage technology, iron-chromium flow batteries（ICFBs） have been widely concerned because of their price advantage. However, the low electrochemical activity of Cr3+/Cr2+redox couples and the side hydrogen evolution reaction limit the industrial application of ICFBs. A multi-dimensional Bi/carbon composite electrocatalyst（Bi@C）for ICFB is designed and prepared to improve the electrochemical activity of Cr3+/Cr2+redox couples. Benefiting by using the Bimetal organic framework（Bi-MOF） with solid matrix as precursors, Bi nanospheres are highly dispersed on the Bi@C electrocatalyst that effectively enhances the electrochemical activity. The special morphology of Bi@C electrocatalyst helps the transfer of electrons and ions, significantly reducing the polarization of battery. Herein, the 3D porous carbon frames accelerate mass transfer, and the 2D carbon nanobelts and carbon layer coating on 0D Bi nanospheres improve the conductivity of Bi nanospheres. Therefore, the ICFB with multi-dimensional Bi@C electrocatalyst exhibits coulombic efficiency of 98.10% and energy efficiency of 79.14% at 140 mA cm-2, which is higher than ICFBs with commercial graphite carbon electrocatalyst and with heat treatment carbon felt. This work provides a simple and economical method to fabricate a high-performance multidimensional Bi@C electrocatalyst for Cr3+/Cr2+redox couples, boosting the development of ICFBs.

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计算机在热线导热仪的应用

东北大学学报（自然科学版） 1999年第2期20卷 177-180页

作者：于绍文杜涛南明军韩春福东北大学材料与冶金学院

根据目前应用的热线导热仪存在的问题，提出将计算机数据采集与处理系统应用到热线导热仪上测量非金属材料的导热系数，提高导热仪的测试精度和再现性·实验结果表明，计算机在热线导热仪的应用可以大大改善测量结果的准确度和再现性，... 详细信息

根据目前应用的热线导热仪存在的问题，提出将计算机数据采集与处理系统应用到热线导热仪上测量非金属材料的导热系数，提高导热仪的测试精度和再现性·实验结果表明，计算机在热线导热仪的应用可以大大改善测量结果的准确度和再现性，为其推广应用提供了理论依据·

关键词：热线法导热系数数据采集计算机热线导热仪

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无机水系液流电池研究

化学进展 2022年第6期34卷 1402-1413页

作者：南明君乔琳刘玉琴张华民马相坤大连海事大学材料科学与工程系大连116026 中国科学院大连化学物理研究所大连116023

液流电池具有安全性高、循环寿命长以及环境友好等优势,被认为是大规模储能技术的首选技术之一,能够解决太阳能、风能等可再生能源发电不连续、不稳定的瓶颈问题,推动可再生能源的大规模应用,助力碳达峰、碳中和目标的实现。其中无机水... 详细信息

液流电池具有安全性高、循环寿命长以及环境友好等优势,被认为是大规模储能技术的首选技术之一,能够解决太阳能、风能等可再生能源发电不连续、不稳定的瓶颈问题,推动可再生能源的大规模应用,助力碳达峰、碳中和目标的实现。其中无机水系液流电池具有能量效率高、循环性能稳定、技术成熟等优势,是目前工程应用最为广泛的液流电池。本文介绍了无机水系液流电池的技术现状及其示范应用情况,系统阐述了新型无机水系液流电池的原理、技术现状及其挑战,同时对无机水系液流电池未来的技术创新与突破进行了展望,为无机水系液流电池的发展指明了方向。

关键词：液流电池无机水系液流电池液-液型液流电池液-沉积型液流电池

DNA-Fe配合物生物聚合离子膜修饰玻碳电极的制备及其用作过氧化氢电化学传感器的研究

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理化检验（化学分册） 2017年第7期53卷 753-758页

作者：南明君顾婷婷周洋贾楠楠王旭辽宁科技大学化学工程学院鞍山114051

将1.00g·L^(-1) DNA溶液与1.00mmol·L^(-1)三氯化铁溶液混合制得DNA-Fe(Ⅲ)配合物溶液。取溶液20μL滴涂于经抛光的GCE表面,滴加0.50g·L^(-1) CTS溶液10μL,于20℃干燥22h制得DNA-Fe/CTS修饰的GCE电极。利用扫描电子显微镜对DNA-Fe/CTS BPICM的形貌进行了表征。采用循环伏安法和安培-时间曲线法研究该修饰电极的电化学特性及该电极对过氧化氢的电化学响应。结果表明,固定在聚合膜中的铁离子表现出较好的电化学活性,DNA-Fe/CTS/GCE对过氧化氢的还原反应具有较好的电催化活性。由此提出了一种新型生物相容性过氧化氢电化学传感器。该传感器的线性范围为0.01~2.0mmol·L^(-1),检出限(3S/N)为3μmol·L^(-1)。

关键词： DNA-Fe(Ⅲ)配合物生物聚合离子膜过氧化氢电化学传感器

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海上风力机叶片状态监测技术应用现状与展望

船舶工程 2022年第S1期44卷 1-5页

作者：王冰佳韩毅童博赵勇李建民南明军西安热工研究院有限公司西安710054 华能烟台新能源有限公司山东烟台265100

海上风力机叶片运行环境恶劣,故障及损伤率逐年增长,运行维护难度增大,给海上风电场运营带来了巨大的经济损失。叶片状态监测技术的应用可以减少和避免叶片重大事故,提高风电机组性能,增加风电场生产效益。文章对海上风力机叶片故障及... 详细信息

海上风力机叶片运行环境恶劣,故障及损伤率逐年增长,运行维护难度增大,给海上风电场运营带来了巨大的经济损失。叶片状态监测技术的应用可以减少和避免叶片重大事故,提高风电机组性能,增加风电场生产效益。文章对海上风力机叶片故障及维护现状进行分析,总结、归纳并对比近年来叶片状态监测技术应用现状,对海上风力机叶片状态监测问题及发展进行讨论,为叶片状态监测技术的智能化发展提供参考。

关键词：海上风电风力机叶片状态监测故障分析

P选择素及其单抗对肾缺血再灌注时细胞凋亡的影响

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上海免疫学杂志 1999年第6期19卷 355-357页

作者：李晓周同吴佩张明钧陈楠董德长上海第二医科大学附属瑞金医院肾脏科上海200025 上海第二医科大学附属瑞金医院消化外科研究所上海200025

本文探讨在肾缺血再灌注时P选择素表达对细胞凋亡的影响, 以大鼠肾缺血再灌注损伤为模型, 采用免疫组化链霉亲和素生物素酶标法和原位DNA片断末端标记法, 检测P选择素单抗治疗前后肾组织中P选择素表达及凋亡细胞。结果表明大鼠肾缺血... 详细信息

本文探讨在肾缺血再灌注时P选择素表达对细胞凋亡的影响, 以大鼠肾缺血再灌注损伤为模型, 采用免疫组化链霉亲和素生物素酶标法和原位DNA片断末端标记法, 检测P选择素单抗治疗前后肾组织中P选择素表达及凋亡细胞。结果表明大鼠肾缺血再灌注时, P选择素在肾内广泛表达, 肾组织出现显著病理改变并发生细胞凋亡; P选择素单抗作用后的肾组织中P选择素未表达, 无明显病理变化且细胞凋亡减少。提示:

关键词： P选择素肾缺血再灌注损伤细胞凋亡

Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water

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Journal of Materials Science & Technology 2015年第3期31卷 243-251页

作者： mingjun Li Li nan Dake Xu Guogang Ren Ke Yang Institute of Metal Research Chinese Academy of Sciences School of Engineering and Technology University of Hertfordshire

Tap water is one of the most commonly used water resources in our daily life. However, the increasing water contamination and the health risk caused by pathogenic bacteria, such as Staphylococcus aureus and Escherichia coli have attracted more attention. The mutualism of different pathogenic bacteria may diminish antibacterial effect of antibacterial agents. It was found that materials used for making pipe and tap played one of the most important roles in promoting bacterial growth. This paper is to report the performance of an innovative type 304 Cu-bearing stainless steel(304Cu SS) against microbes in tap water. The investigation methodologies involved were means of heterotrophic plate count, contact angle measurements, scanning electron microscopy for observing the cell and subtract surface morphology,atomic absorption spectrometry for copper ions release study, and confocal laser scanning microscopy used for examining live/dead bacteria on normal 304 stainless steel and 304 Cu SS. It was found that the surface free energy varied after being immersed in tap water with polar component and Cu ions *** results showed 304 Cu SS could effectively kill most of the planktonic bacteria(max 95.9% antibacterial rate), and consequently inhibit bacterial biofilms formation on the surface, contributing to the reduction of pathogenic risk to the surrounding environments.

关键词： Cu-bearing stainless steel Tap water Antibacterial

Antibacterial behavior and related mechanisms of martensitic Cu-bearing stainless steel evaluated by a mixed infection model of Escherichia coli and Staphylococcus aureus in vitro

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Journal of Materials Science & Technology 2021年第3期62卷 139-147页

作者： mingjun Li Li nan Chunyong Liang Ziqing Sun Lei Yang Ke Yang Center for Health Science and Engineering School of Materials Science and EngineeringHebei University of TechnologyTianjin 300130China Institute of Metal Research University of Chinese Academy of SciencesShenyang 110016China International Research Center for Translational Orthopaedics(IRCTO) China

Escherichia coli(***)and Staphylococcus aureus(***)are the most typical pathogenic bacteria with a significantly high risk of bio-contamination,widely existing in hospital and public *** studies on antibacterial materials and the related mechanisms have attracted more interests of ***,the antibacterial behavior of materials is usually evaluated separately on the single bacterial strain,which is far from the practical ***,the interaction between the polymicrobial communities can promote the growing profile of bacteria,which may weaken the antibacterial effect of *** this work,a 420 copper-bearing martensitic stainless steel(420 CuSS)was studied with respect to its antibacterial activity and the underlying mechanism in a co-culturing infection model using both *** and *** *** via plating and counting colony forming units(CFU),Cu releasing,and material characterization,420 CuSS was proved to present excellent antibacterial performance against the mixed bacteria with an approximately 99.4%of antibacterial *** addition,420 CuSS could effectively inhibit the biofilm formation on its surfaces,resulting from a synergistic antibacterial effect of Cu ions,Fe ions,reactive oxygen species(ROS),and proton consumption of bacteria.

关键词： Mixed bacterial strains E.coli S.aureus 420 Cu-bearing stainless steel Antibacterial mechanism

Characteristics and Possible Formation Mechanisms of Severe Storms in the Outer Rainbands of Typhoon Mujigae(1522)

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Journal of Meteorological Research 2017年第3期31卷 612-624页

作者： Bingyun WANG Ming WEI Wei HUA Yongli ZHANG Xiaohang WEN Jiafeng ZHENG nan LI Han LI Yu WU Jie ZHU mingjun ZHANG Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science &Technology College of Atmospheric Sciences Chengdu University of Information Technology/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Hainan Meteorological Observatory National Satellite Meteorological Center

To better understand how severe storms form and evolve in the outer rainbands of typhoons, in this study, we in- vestigate the evolutionary characteristics and possible formation mechanisms for severe storms in the rainbands of Typhoon Mujigae, which occurred during 2-5 October 2015, based on the NCEP-NCAR reanalysis data, conventional observations, and Doppler radar data. For the rainbands far from the inner core （eye and eyewall） of Mujigae （dis- tance of approximately 70-800 kin）, wind speed first increased with the radius expanding from the inner core, and then decreased as the radius continued to expand. The Rankine Vortex Model was used to explore such variations in wind speed. The areas of strong stormy rainbands were mainly located in the northeast quadrant of Mujigae, and overlapped with the areas of high winds within approximately 300-550 km away from the inner core, where the strong winds were conducive to the development of strong storms. A severe convective cell in the rainbands de- veloped into waterspout at approximately 500 km to the northeast of the inner core, when Mujigae was strengthening before it made landfall. Two severe convective cells in the rainbands developed into two tornadoes at approximately 350 km to the northeast of the inner core after Mujigae made landfall. The radar echo bands enhanced to 60 dBZ when mesocyclones occurred in the rainbands and induced tornadoes. The radar echoes gradually weakened after the mesocyclones weakened. The tops of parent clouds of the mesocyclones elevated at first, and then suddenly dropped about 20 min before the tornadoes appeared. Thereby, the cloud top variation has the potential to be used as an early warning of tornado occurrence.

关键词： strong typhoon rainband severe storm tomado Rankine Vortex Model

Steering spatially separated dual sites on nano-TiO_(2)through SMSI and lattice matching for robust photocatalytic hydrogen evolution

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Chinese Chemical Letters 2021年第11期32卷 3613-3618页

作者： mingjun Ma Haiqing Wang Hong Liu Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanJi'nan 250022China State Key Laboratory of Crystal Materials Shandong UniversityJi'nan 250100China

Spatial isolation of different functional sites at the nanoscale in multifunctional catalysts for steering reaction sequence and paths remains a major ***,we reported the spatial separation of dual-site Au and RuO_(2)on the nanosurface of TiO_(2)(Au/TiO_(2)/RuO_(2))through the strong metal-support interaction(SMSI)and the lattice matching(LM)for robust photocatalytic hydrogen *** SMSI between Au and TiO_(2)induced the encapsulation of Au nanoparticles by an impermeable TiO_(x)overlayer,which can function as a physical separation barrier to the permeation of the second *** LM between RuO_(2)and rutile-TiO_(2)can increase the stability of RuO_(2)/TiO_(2)interface and thus prevent the aggregation of dual-site Au and RuO_(2)in the calcination process of removing TiO_(x)overlayer of *** photocatalytic hydrogen production is used as a model reaction to evaluate the performance of spatially separated dual-site Au/TiO_(2)/RuO_(2)*** rate of hydrogen production of the Au/TiO_(2)/RuO_(2)is as high as 84μmol h^(−1)g^(−1)under solar light irradiation without sacrificial agents,which is 2.5 times higher than the reference Au/TiO_(2)and non-separated Au/RuO_(2)/TiO_(2)*** characterizations verify that the spatially separated dual-site Au and RuO_(2)on the nanosurface of TiO_(2)can effectively separate the photo-generated carriers and lower the height of the Schottky barrier,respectively,under UV and visible light *** study provides new inspiration for the precise construction of different sites in multifunctional catalysts.

关键词： Photocatalysis Hydrogen evolution Spatial separation SMSI Lattice matching