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Sn-doped cobalt containing perovskite as the air electrode for highly active and durable reversible protonic ceramic electrochemical cells

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Journal of Advanced Ceramics 2024年第1期13卷 63-72页

作者： Min Fu Wenjing Hu Hua Tong Xin Ling Linggui Tan fanglin chen Zetian Tao School of Resources Environment and Safety EngineeringUniversity of South ChinaHengyang 421001China Department of Mechanical Engineering University of South CarolinaColumbia 29208USA

One potential solution to the problems of energy storage and conversion is the use of reversible protonic ceramic electrochemical cells(R-PCEC),which are based on the solid oxide fuel cell(SOFC)technology and offer a flexible route to the generation of renewable ***,the R-PCEC development faces a range of significant challenges,including slow oxygen reaction kinetics,inadequate durability,and poor round-trip efficiency resulting from the inadequacy of an air *** address these issues,we report novel B-sites doped Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.3)O_(3−δ)(PBCF)with varying amounts of Sn as the air electrode for R-PCEC to further enhance electrochemical performance at lower *** 600℃,R-PCEC with an air electrode consisting of Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.25)Sn_(0.05)O_(3+δ)has achieved peak power density of 1.12 W∙cm^(−2) in the fuel cell mode and current density of 1.79 A∙cm^(−2) in the electrolysis mode at a voltage of 1.3 ***,R-PCECs have shown good stability in the electrolysis mode of 100 *** study presents a practical method for developing durable high-performance air electrodes for R-PCECs.

关键词： triple conducting oxide dual-element doping protonic ceramic electrochemical cells(PCECs) catalytic

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基于三层模型构建嫌疑人画像

中国人民公安大学学报(自然科学版) 2024年第1期30卷 105-108页

作者：陈芳琳广东警官学院刑事技术系

提出一套利用算法模型构建嫌疑人画像的过程方法。该方法包含三层算法模型搭建，首先通过数据采集层提取犯罪嫌疑人的手机信息；再利用特征提取层，提取出其经济、关系、时间和空间属性；最后经由多重算法的行为分析层，构建出嫌疑人画... 详细信息

提出一套利用算法模型构建嫌疑人画像的过程方法。该方法包含三层算法模型搭建，首先通过数据采集层提取犯罪嫌疑人的手机信息；再利用特征提取层，提取出其经济、关系、时间和空间属性；最后经由多重算法的行为分析层，构建出嫌疑人画像。这种从基层一线部门获取特定案件嫌疑人手机记录，开发出算法模型的方法，拓宽了电子数据在公安侦查领域的应用。

关键词：手机取证嫌疑人画像亲密度计算行为分析

Improved cell performance and sulphur tolerance using A-site substituted Sr_(2)Fe_(1.4)Ni_(0.1)Mo_(0.5)O_(6-δ)anodes for solid-oxide fuel cells

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Clean Energy 2023年第1期7卷 70-83页

作者： Haixia Li Wanhua Wang Jie Lin Ka-Young Park Taehee Lee Andreas Heyden Dong Ding fanglin chen Department of Mechanical Engineering University of South CarolinaColumbiaSC29208USA Department of Chemical Engineering University of South CarolinaColumbiaSC29208USA Energy&Environmental Science and Technology Idaho National LaboratoryIdaho FallsID83401USA

Solid-oxide fuel cells(SOFCs)offer great promise for producing electricity using a wide variety of fuels such as natural gas,coal gas and gasified carbonaceous solids;however,conventional nickel-based anodes face great challenges due to contaminants in readily available fuels,especially sulphur-containing ***,the development of new anode materials that can suppress sulphur poisoning is crucial to the realization of fuel-flexible and cost-effective *** this work,La_(0.1)Sr_(1.9)Fe_(1.4)Ni_(0.1)Mo_(0.5)O_(6-δ)(LSFNM)and Pr_(0.1)Sr_(1.9)Fe_(1.4)Ni_(0.1)Mo_(0.5)O_(6-δ)(PSFNM)materials have been synthesized using a sol-gel method in air and investigated as anode mater-ials for *** nanoparticle-decorated ceramic anodes were obtained by the reduction of LSFNM and PSFNM in H_(2)at 850℃,forming a Ruddlesden-Popper oxide with exsolved FeNi3 bimetallic *** electrochemical performance of the Sr_(2)Fe_(1.4)Ni_(0.1)Mo_(0.5)O_(6-δ)ceramic anode was greatly enhanced by La doping of A-sites,resulting in a 44%decrease in the polarization resistance in reducing *** maximum power densities of Sr-and Mg-doped LaGaO_(3)(LSGM)(300μm)electrolyte-supported single cells with LSFNM as the anode reached 1.371 W cm^(-2)in H_(2)and 1.306 W cm^(-2)in 50 ppm H_(2)S-H_(2)at 850℃.Meanwhile,PSFNM showed improved sulphur tolerance,which could be fully recovered after six cycles from H_(2)to 50 ppm H_(2)S-H_(2)*** study indicates that LSFNM and PSFNM are promising high-performance anodes for SOFCs.

关键词： A-site doping perovskite Ruddlesden-Popper structure alloy nanoparticles polarization resistance solid oxide fuel cells

定位黏贴卡在基层综合性医院输液港无损伤针穿刺中的应用效果

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中国医药指南 2024年第17期22卷 15-18页

作者：张静陈芳琳陈碧红龚二秀丘金花张婷龙岩市第一医院中心静脉导管室龙岩364000 龙岩市第一医院甲状腺乳腺外科龙岩364000 龙岩市第一医院护理部龙岩364000 龙岩市第一医院胸外科龙岩364000

目的探讨完全置入式输液港无损伤针定位黏贴卡在临床应用的效果。方法选取符合纳入标准的2022年3—10月入住我院乳腺外科的96例女性乳腺癌患者及96名本院临床工作满1年且通过培训的护士,以随机数字表法将患者分为干预组和对照组,每组48... 详细信息

目的探讨完全置入式输液港无损伤针定位黏贴卡在临床应用的效果。方法选取符合纳入标准的2022年3—10月入住我院乳腺外科的96例女性乳腺癌患者及96名本院临床工作满1年且通过培训的护士,以随机数字表法将患者分为干预组和对照组,每组48例;将护士分为护士干预组和护士对照组,每组48名。护士对照组对对照组患者采用传统穿刺方法进行穿刺,护士干预组对干预组患者在完全置入式输液港无损伤针定位黏贴卡辅助下进行穿刺,比较两组一次性穿刺成功率、穿刺所用时长,并评估护士穿刺前的焦虑程度。结果护士干预组的操作护士一次穿刺成功率高于护士对照组,穿刺时长短于护士对照组、焦虑程度低于护士对照组(均P<0.05)。结论使用完全置入式输液港无损伤针定位黏贴卡进行完全置入式输液港穿刺,有助于提高护理人员的一次性穿刺成功率、减少穿刺时长及降低护士焦虑程度。

关键词：定位黏贴卡基层综合性输液港无损伤针穿刺

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High-throughput 3D reconstruction of stochastic heterogeneous microstructures in energy storage materials

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npj Computational Materials 2019年第1期5卷 1048-1055页

作者： Yanxiang Zhang Mufu Yan Yanhong Wan Zhenjun Jiao Yu chen fanglin chen Changrong Xia Meng Ni National Key Laboratory for Precision Hot Processing of Metals MIIT Key Laboratory of Advanced Structure-Function Integrated Materials and Green Manufacturing TechnologySchool of Materials Science and EngineeringHarbin Institute of Technology150001 HarbinChina CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and EngineeringUniversity of Science and Technology of China230026 HefeiChina College of Science Harbin Institute of Technology518055 ShenzhenChina Center for Innovative Fuel Cell and Battery Technologies School of Materials Science and EngineeringGeorgia Institute of TechnologyGeorgiaGA 30332-0245USA Department of Mechanical Engineering University of South CarolinaCarolinaSC 29205USA Building Energy Research Group Department of Building and Real EstateThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong

Stochastic heterogeneous microstructures are widely applied in structural and functional materials,playing a crucial role in determining their performance.X-ray tomography and focused ion beam serial sectioning are frequently used methods to reconstruct three-dimensional(3D)microstructures,yet are demanding techniques and are ***,a highthroughput multi-stage 3D reconstruction method via distance correlation functions is developed using a single representatively large-sized 2D micrograph for stochastic microstructures,and verified by X-ray micro-tomography datasets of isotropic and anisotropic solid oxide fuel cell *** method provides an economic,easy-to-use and high-throughput approach for reconstructing stochastic heterogeneous microstructures for energy conversion and storage devices,and can readily be extended to other materials.

关键词： materials stochastic readily

基于GNSS-R技术的阿拉斯加州积雪深度反演及其应用

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极地研究 2023年第2期35卷 197-211页

作者：陈芳霖常亮冯贵平上海海洋大学海洋科学学院上海201306 自然资源部第二海洋研究所卫星海洋环境动力学国家重点实验室浙江杭州310012

利用GNSS-R(全球导航卫星系统反射测量)技术进行准确的雪深监测已成为传统雪深测量的重要补充手段。本文使用GNSS-R技术反演了2012—2018年美国阿拉斯加州4个GPS观测站附近的雪深结果,结合加拿大气象中心(Canadian Meteorological Centr... 详细信息

利用GNSS-R(全球导航卫星系统反射测量)技术进行准确的雪深监测已成为传统雪深测量的重要补充手段。本文使用GNSS-R技术反演了2012—2018年美国阿拉斯加州4个GPS观测站附近的雪深结果,结合加拿大气象中心(Canadian Meteorological Centre,CMC)提供的雪深模型数据产品,以PBO(Plate Boundary Observatory)H2O项目组提供的雪深资料为参考值,分析了不同手段获取的雪深值在不同时间尺度上的变化特征,同时评估了GNSS-R反演雪深结果作为独立数据集验证CMC模型数据的能力。结果表明:GNSS-R、CMC和PBO得到的长时间序列雪深结果均具有较为一致的明显周期性变化,整体上GNSS-R反演结果比CMC数据精度更高,更能反映雪深的年际变化情况。GNSS-R反演值和CMC模拟值均能够反映各测站PBO雪深值的逐月变化规律,但GNSS-R反演值的精度和稳定性总体上优于CMC模拟值。GNSS-R反演结果比CMC模拟值与PBO雪深值的季节性变化更具一致性,且对于本文研究的4个测站,GNSS-R反演雪深的精度和稳定性在雪深值较大的春季和冬季较高,雪深值较小的秋季略差。此外,本文还证实了GNSS-R反演的雪深结果可用于评估CMC模拟雪深值的精度,且评估效果在冬春季优于秋季。

关键词：全球导航卫星系统反射测量(GNSS-R) 加拿大气象中心(CMC) 雪深阿拉斯加

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Development of catalytic combustion and CO_(2)capture and conversion technology

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International Journal of Coal Science & Technology 2021年第3期8卷 377-382页

作者： Zhibin Yang Ze Lei Ben Ge Xingyu Xiong Yiqian Jin Kui Jiao fanglin chen Suping Peng Research Center of Solid Oxide Fuel Cell State Key Laboratory of Coal Resource and Safety MiningChina University of Mining and Technology-BeijingBeijing 100083China School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing 102206China State Key Laboratory of Engines Tianjin University135 Yaguan RoadTianjin 300350China Department of Mechanical Engineering University of South CarolinaColumbiaSC 29208USA

Changes are needed to improve the efficiency and lower the CO_(2)emissions of traditional coal-fired power generation,which is the main source of global CO_(2)*** integrated gasification fuel cell(IGFC)process,which combines coal gasification and high-temperature fuel cells,was proposed in 2017 to improve the efficiency of coal-based power generation and reduce CO_(2)*** by the National Key R&D Program of China,the IGFC for nearzero CO_(2)emissions program was enacted with the goal of achieving near-zero CO_(2)emissions based on(1)catalytic combustion of the flue gas from solid oxide fuel cell(SOFC)stacks and(2)CO_(2)conversion using solid oxide electrolysis cells(SOECs).In this work,we investigated a kW-level catalytic combustion burner and SOEC stack,evaluated the electrochemical performance of the SOEC stack in H2O electrolysis and H2O/CO_(2)co-electrolysis,and established a multiscale and multi-physical coupling simulation model of SOFCs and *** process developed in this work paves the way for the demonstration and deployment of IGFC technology in the future.

关键词： Integrated gasification fuel cell(IGFC) Catalytic combustion technology Solid oxide electrolysis cells

多巴胺@氮化硼-碳纳米管/聚酰亚胺复合气凝胶太阳能蒸发器的制备与性能

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复合材料学报 2023年第3期40卷 1494-1500页

作者：汪日圆陈浩然陈芳琳黎涛鲁红典杨伟合肥学院能源材料与化工学院合肥230601

利用太阳能蒸发器进行水蒸发是生产清洁用水的重要途径之一。为了提高聚酰亚胺(PI)气凝胶的太阳能蒸发性能,本文通过添加多巴胺改性氮化硼(PDA@BN)和羟基化碳纳米管(CNT),采用四定向冷冻干燥和亚胺化工艺制备了PDA@BN-CNT/PI复合气凝胶... 详细信息

利用太阳能蒸发器进行水蒸发是生产清洁用水的重要途径之一。为了提高聚酰亚胺(PI)气凝胶的太阳能蒸发性能,本文通过添加多巴胺改性氮化硼(PDA@BN)和羟基化碳纳米管(CNT),采用四定向冷冻干燥和亚胺化工艺制备了PDA@BN-CNT/PI复合气凝胶。研究了PDA@BN和CNT的加入对气凝胶的形貌结构、润湿性能、太阳能蒸发性能的影响。结果表明:PDA@BN-CNT/PI复合气凝胶不仅具有良好的亲水性和太阳能光热转换能力,而且其独特的低弯曲度管状结构促进了水在气凝胶内部的运输,提高了太阳能蒸发性能。该气凝胶在2 kW/m^(2)光照下的蒸发速率为1.95 kg/(m^(2)·h),并展现出优异的循环使用性能、化学稳定性和高效的污水净化能力。

关键词：太阳能蒸发聚酰亚胺气凝胶氮化硼碳纳米管水净化

基于BP神经网络的西北太平洋柔鱼资源丰度预测

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上海海洋大学学报 2022年第2期31卷 524-533页

作者：常亮陈芳霖陈新军余为冯贵平李阳东曾为上海海洋大学海洋科学学院上海201306 国家远洋渔业工程技术研究中心上海201306 大洋渔业资源可持续开发教育部重点实验室上海201306 远洋渔业协同创新中心上海201306 上海海洋大学图书馆上海201306

基于监督式学习算法的BP神经网络模型,综合多源卫星遥感观测获取得到的海表面温度(sea surface temperature, SST)、叶绿素a质量浓度(chlorophyll-a mass concentration,Chl.a)、海表面高度距平值(sea surface height anomaly, SSHA)、海水质量变化和地转流等海洋环境因子,对西北太平洋柔鱼资源丰度的时空分布进行模拟和预测。以上海海洋大学中国远洋渔业数据中心2004—2017年的西北太平洋海域的柔鱼历史渔业捕捞数据为参考值,对基于多源卫星遥感观测的多海洋环境因子的柔鱼资源丰度的模拟和预测结果进行精度评定。结果表明:与仅采用SST、Chl.a和SSHA等进行柔鱼资源丰度时空分布预测的传统方案相比,进一步加入海水质量变化和地转流后,可有效提高利用BP神经网络对西北太平洋柔鱼资源丰度进行模拟和预测的精度:改进方法模拟的标准差(standard deviation, STD)和均方根误差(root mean square error, RMSE)均减少了22%,且预测的STD减少了31%,RMSE减少了26%。

关键词：卫星遥感 BP神经网络模型柔鱼资源丰度预测

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