The influence of dispersed graphene oxide (GO) on the mechanical, microstructural and crystallization properties of GO–cement nanocomposites has been investigated.
BACKGROUND: Plastic waste has been growing at an alarming rate with dissatisfactory recycling rates. It has a potential to be used for the recovery of hydrogen and carbon nanotubes due to its intrinsic properties.
RESULTS: Thermo-chemical processes may be used to tap into the recovery of these resources from the wastes. Catalysts can be employed to increase the gaseous yield and to optimize the process parameters. Hydrogen production is greatly influenced by the catalyst properties, temperature, steam and feedstock. Similarly, the carbon deposits formed are influenced by many factors such as type of metal catalyst used and metal-support interaction. This review focuses on studies employing catalytic thermo-chemical processes for extracting hydrogen and carbon nano structures from plastic wastes while evaluating the role of parameters such as temperature, catalyst type, catalyst composition, steam/feed ratio, feed rate, feedstock and their effect on the product yields. CONCLUSION: In view of increasing concerns regarding waste management, climate change and energy security the possibility of employing waste products for producing clean energy in a sustainable manner is appealing and needs additional fundamental research.C 5+ and cracking products. There is a decrease in catalyst deactivation rate due to increased gasification of deposited coke, faster J Chem Technol Biotechnol 2020; 95: [11][12][13][14][15][16][17][18][19]
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