Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/122330
Title: DEVELOPMENT OF SIO2 SUPPORTED NICKEL BASED CATALYSTS BY COMPLEXATION WITH ORGANIC MOLECULES FOR CO2 REFORMING OF CH4
Authors: GAO XINGYUAN
Keywords: DRM, Ni, organic molecule, oleylamine, nanoparticle, SiO2
Issue Date: 14-Aug-2015
Citation: GAO XINGYUAN (2015-08-14). DEVELOPMENT OF SIO2 SUPPORTED NICKEL BASED CATALYSTS BY COMPLEXATION WITH ORGANIC MOLECULES FOR CO2 REFORMING OF CH4. ScholarBank@NUS Repository.
Abstract: Dry reforming of methane (DRM) is environmentally benign because of the concern towards greenhouse effects. Besides the transformation of greenhouse gases, syngas (mixture of CO and H2) produced can be applied in many downstream processes. Deactivation caused by carbon deposition and metal sintering hinders the industrilization of Ni-based catalysts. To develop a anti-coking and -sintering Ni-based catalyst, metal size is reduced and metal-support interaction (MSI) is enhanced. Firstly, alkyl-amines with different carbon chain lengths are studied and oleylamine (OAm) produces the smallest size and strongest MSI. Secondly, concentration of OAm is optimized and catalyst formation mechanism with OAm is proposed. Thirdly, oleic acid (OAc) is added to form organic pair OAm/OAc, which performs much better than OAm or OAc alone. Fourthly, Ni-Co bimetallic catalyst combined with OAm/OAc organic pair is developed, which is very promising for DRM and other reactions operated at a wide range of temperatures.
URI: http://scholarbank.nus.edu.sg/handle/10635/122330
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chapter 1-Intro.pdf373.22 kBAdobe PDF

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chapter 2-LR on DRM.pdf266.46 kBAdobe PDF

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chapter 3-LR on the effect of organic additives on the Ni-based catalysts.pdf1.3 MBAdobe PDF

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Chapter 4-Experimental.pdf229.67 kBAdobe PDF

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chapter 5-paper 1.pdf3.19 MBAdobe PDF

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chapter 6-paper2.pdf1.63 MBAdobe PDF

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chapter 7-paper 3.pdf827.79 kBAdobe PDF

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chapter 8-paper 4.pdf1.66 MBAdobe PDF

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chapter 9-Conclusions.pdf390.75 kBAdobe PDF

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Appendix.pdf133.77 kBAdobe PDF

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Cover Page.pdf783.04 kBAdobe PDF

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