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Preparation and characterization of bi-metallic nanoparticle catalyst having better anti-coking properties using reverse micelle technique.

机译:使用逆胶束技术制备和表征具有较好抗焦化性能的双金属纳米颗粒催化剂。

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摘要

Energy needs are rising on an exponential basis. The mammoth energy sources like coal, natural gas and petroleum are the cause of pollution. The large outcry for an alternate energy source which is environmentally friendly and energy efficient is heard during the past few years. This is where "Clean-Fuel" like hydrogen gained its ground. Hydrogen is mainly produced by steam methane reforming (SMR). An alternate sustainable process which can reduce the cost as well as eliminate the waste products is Tri-reforming. In both these reforming processes nickel is used as catalyst. However as the process goes on the catalyst gets deactivated due to coking on the catalytic surface.;This goal of this thesis work was to develop a bi-metallic catalyst which has better anti-coking properties compared to the conventional nickel catalyst. Tin was used to dope nickel. It was found that Ni3Sn complex around a core of Ni is coking resistant compared to pure nickel catalyst. Reverse micelle synthesis of catalyst preparation was used to control the size and shape of catalytic particles. These studies will benefit researches on hydrogen production and catalyst manufactures who work on different bi-metallic combinations
机译:能源需求呈指数增长。巨大的能源,如煤炭,天然气和石油,是造成污染的原因。在过去的几年中,人们一直强烈要求环保和节能的替代能源。这就是像氢气一样的“清洁燃料”的发源地。氢气主要是通过蒸汽甲烷重整(SMR)产生的。可降低成本并消除废品的替代性可持续过程是Tri-reform。在这两个重整过程中,镍均用作催化剂。然而随着过程的进行,催化剂由于在催化剂表面上的焦化而失活。本论文的目的是开发一种双金属催化剂,与传统的镍催化剂相比具有更好的抗焦化性能。锡被用来掺杂镍。发现与纯镍催化剂相比,围绕Ni核的Ni 3 Sn复合物具有抗焦化性。催化剂制备的反胶束合成用于控制催化颗粒的尺寸和形状。这些研究将有益于从事不同双金属组合的制氢和催化剂制造商的研究。

著录项

  • 作者

    Zacharia, Thomas.;

  • 作者单位

    Lamar University - Beaumont.;

  • 授予单位 Lamar University - Beaumont.;
  • 学科 Engineering Chemical.;Nanoscience.
  • 学位 M.E.S.
  • 年度 2012
  • 页码 73 p.
  • 总页数 73
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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