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Preparation of electrolyte membranes for micro tubular solid oxide fuel cells

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Science China Chemistry 2008年第9期51卷 808-812页

作者： TAN XiaoYao YIN WeiNing MENG Bo MENG XiuXia yang naitao MA ZiFeng School of Chemical Engineering Shandong University of TechnologyZibo 255049China Department of Chemical Engineering Shanghai Jiaotong UniversityShanghai 200240China

Yttria-stabilized zirconia (YSZ) micro tubular electrolyte membranes for solid oxide fuel cells (SOFCs) were prepared via the combined wet phase inversion and sintering technique. The as-derived YSZ mi- cro tubes consist of a thin dense skin layer and a thick porous layer that can serve as the electrode of fuel cells. The dense and the porous electrolyte layers have the thickness of 3-5 μm and 70-90 μm, respectively, while the inner surface porosity of the porous layer is higher than 28.1%. The two layers are perfectly integrated together to preclude the crack or flake of electrolyte film from the electrode. The presented method possesses distinct advantages such as technological simplicity, low cost and high reliability, and thus provides a new route for the preparation of micro tubular SOFCs.

关键词： solid oxide fuel cell micro tube yttrium stabilized zirconia (YSZ) phase inversion

NICKEL(Ⅱ)ion-intercalated MXene membranes for enhanced H_(2)/CO_(2) separation

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Frontiers of Chemical Science and Engineering 2021年第4期15卷 882-891页

作者： Yiyi Fan Jinyong Li Saidi Wang Xiuxia Meng Yun Jin naitao yang Bo Meng Jiaquan Li Shaomin Liu School of Chemical Engineering Shandong University of TechnologyZibo 255049China Department of Chemical Engineering Curtin UniversityPerthWA 6845Australia College of Chemical Engineering Beijing University of Chemical TechnologyBeijing 100029China

Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy.A membrane-assisted separation is promising in producing high-purity H_(2).Molecular sieving membranes(MSMs)are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion,diffusion,and *** this work,MXene nanosheets intercalated with Ni^(2+) were assembled to form an MSM supported on Al_(2)O_(3) hollow fiber via a vacuum-assisted filtration and drying *** prepared membranes showed excellent H_(2)/CO_(2) mixture separation performance at room *** factor reached 615 with a hydrogen permeance of 8.35×10^(-8) mol·m^(-2)·s^(-1) ·Pa^(-1).Compared with the original Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes,the permeation of hydrogen through the Ni^(2+)-Ti_(3)C_(2)T_(x)/Al_(2)O_(3) membrane was considerably increased,stemming from the strong interaction between the negatively charged MXene nanosheets and Ni^(2+).The interlayer spacing of MSMs was tuned by Ni^(2+).During 200-hour testing,the resultant membrane maintained an excellent gas separation without any substantial performance *** results indicate that the Ni2+tailored Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes can inspire promising industrial applications.

关键词： MXene H_(2)/CO_(2)separation nickel ions hollow fiber

Enhancing performance of low-temperature processed CsPbI2Br all-inorganic perovskite solar cells using polyethylene oxide-modified TiO_(2)

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 786-794页

作者： Xu Zhao naitao Gao Shengcheng Wu Shaozhen Li Sujuan Wu School of Electrical and Electronic Engineering Wuhan Polytechnic UniversityWuhan 430023China Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China

CsPbX_(3)-based(X=I,Br,Cl)inorganic perovskite solar cells(PSCs)prepared by low-temperature process have attracted much attention because of their low cost and excellent thermal ***,the high trap state density and serious charge recombination between low-temperature processed TiO_(2)film and inorganic perovskite layer interface seriously restrict the performance of all-inorganic *** a thin polyethylene oxide(PEO)layer is employed to modify TiO_(2)film to passivate traps and promote carrier *** impacts of PEO layer on microstructure and photoelectric characteristics of TiO_(2)film and related devices are systematically *** results suggest that PEO modification can reduce the surface roughness of TiO_(2)film,decrease its average surface potential,and passivate trap *** optimal conditions,the champion efficiency of CsPbI_(2)Br PSCs with PEO-modified TiO_(2)(PEO-PSCs)has been improved to 11.24%from 9.03%of reference ***,the hysteresis behavior and charge recombination have been suppressed in PEO-PSCs.

关键词： polyethylene oxide-modified TiO_(2) film low-temperature process CsPbI_(2)Br-based all-inorganic perovskite solar cells photo-voltaic performance

PVDMS-Al2O3 Composite Hollow Fibre Membranes for Chloroform Recovery from Gas Streams

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Chinese Journal of Chemical Engineering 2005年第5期13卷 678-685页

作者：谭小耀杨乃涛孟波 Shandong University of Technology

Sorption isotherm of chloroform in polyvinyl dimethylsiloxane (PVDMS) polymer film was measured via the gravimetric method, and this film was confirmed experimentally to be good membrane material to recover chloroform from gas stream with high sorption capacity. A new PVDMS-Al2O3 composite hollow fibre membrane was further prepared by coating a PVDMS film on the outer surface of Al2O3 hollow fibre porpous substrate prepared by a dry/wet phase inversion method. Microstructure of the composite membranes was examined by scanning electron microscopy (SEM), indicating the PVDMS coating layer was uniform, free of defects, and around 15μm thick. Performance of the PVDMS-Al2O3 composite hollow fibre membranes for chloroform recovery was investigated. By comparing the experimental data that derived from a mathematical model, the permeabilities of chloroform and nitrogen in the PVDMS polymer membrane were obtained. The effects of temperature and feed flow rate on the chloroform recovery and permeate concentration were investigated both experimentally and theoretically.

关键词： hollow fibre composite membrane chloroform recovery

Highly stable microtubular solid oxide fuel cells based on integrated electrolyte/anode hollow fibers

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Highly stable microtubular solid oxide fuel cells based on i...

微管式固体氧化物燃料电池制备技术及电堆组装工艺

第一届全国储能科学与技术大会

作者： MENG Xiuxia YAN Wei yang naitao TAN Xiaoyao LIU Shaomin School of Chemical Engineering Shandong University of Technology Department of Chemical Engineering Tianjin Polytechnic University Department of Chemical Engineering Curtin University of Technology Perth 6102Western Australia

The asymmetric YSZ hollow fibers have been prepared by a phase-inversion method,based on which,the integrated electrolyte/anode hollow fibers are fabricated via a vacuum-assisted impregnation of nickel *** weight content of NiO in the integrated hollow fibers enhances linearly from 0 to 42%with the impregnation cycles from 0 to *** porosity of the integrated electrolyte/anode hollow fibers decreases from 43%to 31%with the repeated impregnation and calcination of Ni *** conductivity reaches up to 728 S/cm after 10 cycles of *** the mechanical strength of the integrated hollow fiber enhances from 128 to 156 MPa due to the increased NiO *** on the integrated electrolyte/anode hollow fibers,the prepared microtubular solid oxide fuel cells(MT-SOFCs) deliver a peak power density of 562 mW/cm2 after ten cycles of Ni *** cell stability has been verified in 40 thermal cycles with a steady OCV of 1.1 V and stable power density around 560 mW/cm2 operated at 800 ℃.

关键词： integrated anode/electrolyte microtubular solid oxide fuel cell hollow fiber ceramics thermal cycle vacuum-assisted impregnation

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化工学报 2011年第11期62卷 2977-2986页

作者：孟秀霞杨乃涛尹屹梅谭小耀马紫峰上海交通大学化学工程系上海200240 山东理工大学化工学院山东淄博255049

微管式固体氧化物燃料电池(MT-SOFC)能显著减小固体氧化物燃料电池(SOFC)的体积,微型化结构使其传质、传热和反应效率明显提高,可实现快速启动与关闭,易于移动和携带。本文概述了微管式固体氧化物燃料电池的结构、关键制备工艺、研究现... 详细信息

微管式固体氧化物燃料电池(MT-SOFC)能显著减小固体氧化物燃料电池(SOFC)的体积,微型化结构使其传质、传热和反应效率明显提高,可实现快速启动与关闭,易于移动和携带。本文概述了微管式固体氧化物燃料电池的结构、关键制备工艺、研究现状、存在问题和应用前景。对电解质支撑型、阳极支撑型及阴极支撑型MT-SOFC结构和性能进行了分析比较,介绍了等静压成型、挤出成型和相转化纺丝法制备陶瓷中空纤维的技术,综述了微管负载型电解质膜技术和微管电池堆组装技术,并对MT-SOFC发展方向及在便携电源、汽车动力电源和微反应器领域的应用进行了展望。

关键词：微管式固体氧化物燃料电池挤出成型法相转化纺丝法陶瓷中空纤维陶瓷微反应器

Characteristic Analysis of the Solid Oxide Fuel Cell with Proton Conducting Ceramic Electrolyte

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Chinese Journal of Chemical Engineering 2005年第1期13卷 107-117页

作者：谭小耀孟波杨乃涛 K.Li Fuel Cell Research Center Shandong University of Technology Zibo 255012 China Department of Chemical Engineering and Chemical Technology Imperial College London London SW7 2AZU.K.

An electrolyte model for the solid oxide fuel cell (SOFC) with proton conducting perovskite electrolyte is developed in this study, in which four types of charge carriers including proton, oxygen vacancy (oxide ion), free electron and electron hole are taken into consideration. The electrochemical process within the SOFC with hydrogen as the fuel is theoretically analyzed. With the present model, the effects of some parameters, such as the thickness of electrolyte, operating temperature and gas composition, on the ionic transport (or gas permeation) through the electrolyte and the electrical performance, i.e., the electromotive force (EMF) and internal resistance of the cell, are investigated in detail. The theoretical results are tested partly by comparing with the experimental data obtained from SrCe0.95M0.05O3-α, (M=Yb, Y) cells.

关键词： solid oxide fuel cell proton conducting ceramic perovskite oxide electrolyte

钙钛矿型复合氧化物陶瓷膜的制备及其透氧性能

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硅酸盐学报 2005年第8期33卷 934-938页

作者：孟波谭小耀杨乃涛张宝砚山东理工大学化工学院山东淄博255049 东北大学理学院沈阳110004

用低温燃烧法合成了La0.6Sr0.4Co0.2Fe0.8O3-δ(LSCF)钙钛矿型复合氧化物电子一氧离子混合导体材料。采用微粉浆料相变纺丝技术制备了具有多孔层和致密层的管状中空非对称陶瓷膜。考察了温度以及吹扫气氦气流速对膜的透氧性能的影响。... 详细信息

用低温燃烧法合成了La0.6Sr0.4Co0.2Fe0.8O3-δ(LSCF)钙钛矿型复合氧化物电子一氧离子混合导体材料。采用微粉浆料相变纺丝技术制备了具有多孔层和致密层的管状中空非对称陶瓷膜。考察了温度以及吹扫气氦气流速对膜的透氧性能的影响。结果表明:当温度升高到700℃,氧通量显著增大;增加氦气流速也使透氧速率增大,但是当氦气流速增大到某一值时,透氧速率基本恒定。不同温度下达到最大透氧速率时的氦气流速不同。透过侧氧分压为1.7kPa、温度为900℃、平均厚度为0.45mm的LSCF管状中空膜的透氧速率达2.2×10-7mol/(cm2·s)。

关键词：混合导体钙钛矿氧化物陶瓷膜透氧膜低温燃烧相转变技术

表/界面调控策略在氢/氧反应电极中的研究进展

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化工进展 2022年第5期41卷 2416-2428页

作者：王亚楠孟秀霞张维民杨乃涛山东理工大学化学化工学院山东淄博255000

高效的非贵金属基电催化剂对于提升氢气析出反应(HER)、氧气析出反应(OER)、氧气还原反应(ORR)等电催化反应的整体效率、促进能源转换技术的发展及应用起着至关重要的作用。近年来,对现有的电催化剂进行表/界面调控以诱导其产生新的理... 详细信息

高效的非贵金属基电催化剂对于提升氢气析出反应(HER)、氧气析出反应(OER)、氧气还原反应(ORR)等电催化反应的整体效率、促进能源转换技术的发展及应用起着至关重要的作用。近年来,对现有的电催化剂进行表/界面调控以诱导其产生新的理化性质,从而提高催化活性的研究受到了广泛的关注。本文综述了近年来利用形貌尺寸调控、缺陷调控、杂原子掺杂、异质结结构等表/界面调控策略在设计非贵金属基电催化剂方面的研究进展,揭示了催化材料体系改性对优化和提升催化性能的关键特性。从催化剂制备、先进表征手段、理论计算、应用性评价等方面展望了非贵金属基电催化剂在实际应用中存在的挑战和未来的研究方向,为实现清洁能源的大规模应用提供参考。

关键词：表/界面调控电催化剂能源改性优化

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