Scienza e Tecnologia
NUST MISIS Scientists Create New Catalyst for Efficient CO2 Processing
Today, there are two main production methods of the catalysts for the carbon dioxide processing: using noble metals - effective, but expensive, and without them - cheaper, but with significantly reduced characteristics.
The research team of NUST MISIS proposed a compromise solution - to use inexpensive iron as a catalyst component, reducing the content of noble metals (in this case platinum) to less than 1 atomic %.
But even when implementing the proposed solution, there is a difficulty - bimetallic iron-platinum nanoparticles tend to sinter at elevated temperatures (agglomeration process). In this case, the specific surface area of the particles decreases, which negatively affects the catalytic properties.
In the paper, the team has shown a unique mechanism of iron-platinum nanoparticles stabilization: thin sheets of boron nitride were wrapped around the particles at elevated temperatures. As a result, heterogeneous particles with a core-shell structure were formed and their agglomeration was significantly hindered.
The obtained material can be used at any enterprise with massive These are oil refineries, chemical and metallurgical plants, cellulose industry, etc.
The main product of the reaction of CO2 processing using the obtained catalyst is CO (carbon monoxide), which can be reused in industrial processes. However, according to the developers, from the economic point of view, the production of complex hydrocarbons with high added value from CO is of greater interest. This will be the goal of the following research of the team.
Logo: https://mma.prnewswire.com/media/955872/NUST_MISIS_Logo.jpg