Synthesis, Structure Characterization and Study of a New Kind of Catalyst: A Monolith of Nickel Made by Additive Manufacturing Coated with Platinum

Ahmad O. Hasan, Khamis Essa and Mohamed R. Gomaa ()
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Ahmad O. Hasan: Department of Mechanical Engineering, Faculty of Engineering, Al-Hussein Bin Talal University, Ma’an 71110, Jordan
Khamis Essa: School of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK
Mohamed R. Gomaa: Department of Mechanical Engineering, Faculty of Engineering, Al-Hussein Bin Talal University, Ma’an 71110, Jordan

Energies, 2022, vol. 15, issue 20, 1-13

Abstract: The monitoring of environmental contamination is an important issue to protect human health and the atmospheric environment. In this study, the optical imaging of mesh structures not coated and coated with platinum was performed to analyze the optical characteristics of the lattices. A nickel monolith catalyst was manufactured via additive manufacturing and coated with platinum, and it was presented to characterize the catalyst properties. The analysis focused on the process of coating using hydrazine bath as a reducing agent. The results showed an increase in the thickness of the coating with baths with durations of 1.5 h, 2.0 h and 2.5 h. The coating thickness was strongly dependent on time duration. The SEM images and EDX were used to confirm the process of coating and analyze the presence of platinum on the catalyst. Coating layers were very thin, and others were not homogeneous over the surface. When the catalyst was exposed to platinum for 2.5 h, the catalyst showed an efficiency of 0.06% for NOx, 0.10%, for CO and 0.09% for HC reduction.

Keywords: nickel; platinum catalyst; platinum coating; SEM and EDX images analyses; NOx; CO; HC emissions; compression ignition engine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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