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首页> 外文期刊>International journal of hydrogen energy >Hydrogen generation by acetic acid steam reforming over Ni-based catalysts derived from La_(1-x)Ce_xNiO_3 perovskite
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Hydrogen generation by acetic acid steam reforming over Ni-based catalysts derived from La_(1-x)Ce_xNiO_3 perovskite

机译：由La_（1-x）Ce_xNiO_3钙钛矿衍生的Ni基催化剂上的乙酸蒸汽重整制氢

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摘要

In this work, La1-xCexNiO3 perovskite-type oxide derived catalysts were synthesized for hydrogen generation from acetic acid steam reforming process (AcSR), and the effect of Ce substitution was investigated. Various techniques were applied to characterize the properties of synthesized catalysts including X-ray diffraction (XRD), H-2 temperature-programmed reduction (TPR), H-2 chemisorption, transmission electron microscopy (TEM), N-2 adsorption-desorption, and thermogravimetric analysis (TGA). The characterization results demonstrated that the perovskite-type oxide derived catalysts possessed uniform Ni dispersion and small Ni particle size. The adding of Ce remarkably increased the metal support interaction, improved the coke resistance and enhanced the water gas shift reaction. The reactivity and stability tests were conducted in a fixed-bed reactor. The La0.9Ce0.1NiO3 exhibited the best performance for AcSR with an average H-2 yield of 90%, an average acetic acid conversion of 95%, and an accumulated coke deposition of 11.8 wt% in a 30-h stability test. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：在这项工作中，合成了La1-xCexNiO3钙钛矿型氧化物衍生的催化剂，用于通过乙酸水蒸气重整工艺（AcSR）生成氢，并研究了Ce取代的效果。应用了各种技术来表征合成催化剂的性能，包括X射线衍射（XRD），H-2程序升温还原（TPR），H-2化学吸附，透射电子显微镜（TEM），N-2吸附-脱附，和热重分析（TGA）。表征结果表明，钙钛矿型氧化物衍生的催化剂具有均匀的Ni分散和小的Ni粒径。 Ce的添加显着提高了金属载体的相互作用，提高了耐焦炭性并增强了水煤气变换反应。反应性和稳定性测试在固定床反应器中进行。在30小时的稳定性测试中，La0.9Ce0.1NiO3对AcSR表现出最佳性能，平均H-2产率为90％，平均乙酸转化率为95％，累积焦炭沉积为11.8 wt％。 （C）2018氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《International journal of hydrogen energy》 |2018年第14期|6795-6803|共9页
  • 作者

    Li Lin; Jiang Bo; Tang Dawei; Zhang Qian; Zheng Zhouwei;

  • 作者单位

    Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China;

    Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China;

    Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China;

    Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China;

    Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydrogen; Steam reforming; Acetic acid; Perovskite; La1-xCexNiO3;

    机译：氢气;蒸汽重整;乙酸;钙钛矿;La1-xCexNiO3;

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