Abstract
Depletion of fossil fuel for global energy system and increasing concern on global warming have driven the exploration of alternative and sustainable energy source in realms of academia and industry. This study aims to investigate the physicochemical features of KAUST Catalysis Center-1 supported catalyst (i.e., Ni/KCC-1) and evaluate its catalytic performance for Partial Oxidation of Methane (POM) reaction. N2 physisorption and XRD analyses confirmed the structural integrity of KCC-1 framework after NiO addition while the growth of Si–O–Ni bonds in KCC-1 structure was corroborated by the FTIR results. The FESEM and TEM images for KCC-1 not only affirm the successful formation of bicontinuous lamellar morphology but also reveal that the three-dimensional spherical structure was originally developed from the centre of microsphere into all axial. The combustion-reforming pathway was determined during reaction run and the H2/CO ratio ranging of 1.48 to 2.14 was appropriate for synthetic fuel production via Fischer-Tropsch synthesis (FTS).
Highlights
The excessive emission of anthropogenic greenhouse gas due to industrial and residential combustion and the depletion of fossil fuel for global energy system have driven the exploration of alternative and sustainable energy source in realms of academia and industry [1]
The similar isotherm curve of Ni/KAUST Catalysis Center-1 (KCC-1) compared to that of KCC-1 suggesting the structural integrity of dendritic lamellar KCC-1 morphology after NiO addition
The Ni/KCC-1 catalyst was synthesized via microwave-assisted hydrothermal approach and was scrutinized for Partial Oxidation of Methane (POM) at 800 oC and atmospheric pressure with stoichiometric feed composition
Summary
The excessive emission of anthropogenic greenhouse gas due to industrial and residential combustion and the depletion of fossil fuel for global energy system have driven the exploration of alternative and sustainable energy source in realms of academia and industry [1]. Syngas emerges as a promising energy source for the global petroleum-based energy system as it is the feedstock for generating synfuel through Fischer-Tropsch (FT) approach [2]. Syngas produced via partial oxidation of methane (POM, cf Eq (1)) has gained substantial attention from researchers as it is capable to provide a practical ratio of H2/CO around 2 for downstream FT synthesis [2]. POM consists of a complex reaction network [3] and simultaneously encounters catalyst deactivation problem caused by deposited carbon on active sites of catalyst [4].
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