Abstract
Over the past several decades, an increasing amount of attention has been given to catalytic combustion as an environmentally friendly process. However, major impediments to large-scale application still arise on the materials side. Here, we review catalytic combustion on thin film catalysts in view of highlighting some interesting features. Catalytic films open the way for new designs of structured catalysts and the construction of catalysts for catalytic combustion. A special place is occupied by materials in the form of very thin films that reveal catalytic activity for various chemical reactions. In this review, we demonstrate the high catalytic activity of thin film catalysts in these oxidation reactions.
Highlights
Catalytic combustion represents a viable approach to obtain energy from fuels and to control emissions released into the atmosphere from different industrial processes.Catalytic total oxidation effectively minimizes emissions of methane, carbon monoxide and volatile organic compounds (VOCs) in industrial gases [1,2]
Comprising mostly harmful gases such as methane, carbon monoxide, or volatile organic compounds (VOCs), which include benzene, toluene, formaldehyde, and chlorinated compounds, these continuous emissions have a hazardous impact on the ecosystem and all its inhabiting organisms, since most of them contribute to the global warming effect, alongside to the increasing toxicity of the environment
The results have shown that the catalysts with atomic layer deposition (ALD)-modified layer of LaFeO3 are capable to reactivate by reduction with H2 at 800 ◦ C for 1 h after an oxidation process of 1 h at 800 ◦ C, whereas the activity of Pd/MgAl2 O4 sample was not recovered after the same reduction at high temperature
Summary
Catalytic combustion represents a viable approach to obtain energy from fuels and to control emissions released into the atmosphere from different industrial processes. Catalytic total oxidation effectively minimizes emissions of methane, carbon monoxide and volatile organic compounds (VOCs) in industrial gases [1,2]. Thin films deposition provides an attractive method which allows more control over the size and thickness of the grown material with considerable effects on the catalytic activity, over the interactions between the layers of the composite which influence the redox capabilities. In this context, we aim to provide insights in this paper on the use of thin film technology in the preparation of active catalysts for combustion of methane and carbon monoxide
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