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- 저자 : Ewelina Pawelczyk (검색결과 1 건)
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Novel sugar-based nickel-tungsten carbide catalysts for dry reforming of hydrocarbons
Izabela Wysocka,Natalia Czaplicka,Ewelina Pawelczyk,Jakub Karczewski,Joanna Sobczak,Zuzanna Bielan,Michał Maciejewski,Barbara Koscielska,Andrzej Rogala 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.124 No.-
The search for new materials for dry reforming of hydrocarbons with high activity, stability, and ease ofsynthesis is still one of the main directions of research in the field of heterogeneous catalysis. Traditionalmethods of carbide synthesis require the use of combustible gases of petrochemical origin. The search fornew catalysts based on renewable and safe carbon sources is highly demanded. Therefore, we report WCand Ni-WC catalysts prepared using glucose, sucrose, fructose and trehalose. The materials were characterizedusing XRD, AAS, H2-TPR, SEM, TEM, Raman spectroscopy, FTIR, CO2-TPD, TG/DTG BET and BJHmethods. The catalytic activity was investigated in the dry reforming of methane and plastics. The sugartype used for the preparation determined crystal structure and therefore catalytic properties of Ni-WCcatalysts. The most active and stable catalyst was prepared using sucrose. It was observed that catalystsobtained with the use of sugars containing fructose in their structure are characterized by smaller WCand Ni crystallites, which have a direct impact on high catalytic activity. The catalytic activity of the mostactive catalyst Ni-WC_S was examined in the dry reforming of plastics.The highest syngas generation wasobserved for low-density polyethylene reforming reaching 75.58 mmol/g plastic.
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