Five-metal 2D catalysts could convert CO₂ to CO without needing an extra electrical boost
Carbon dioxide (CO₂) is usually discussed as something the world needs to get rid of. Activities such as the burning of fossil fuels for daily use, including electricity and transportation, and industrial applications release significant amounts of CO₂, and the gas enters the atmosphere. Researchers are now asking whether this road could have a roundabout. What if CO₂, which is at the center of…
Scientists have investigated the potential of 2D catalysts composed of five metals to transform carbon dioxide (CO₂) into carbon monoxide (CO) without requiring additional electrical energy. CO₂ is a significant contributor to climate change, but converting it into a useful substance like CO could help reduce its environmental impact.
Researchers from the Indian Institute of Technology Gandhinagar proposed using high-entropy MBenes, a combination of metals including chromium, niobium, zirconium, molybdenum, titanium, hafnium, and tantalum, along with boron. These five-metal high-entropy MBenes were found to efficiently convert CO₂ to CO under mild, water-based conditions, eliminating the need for an extra electrical boost.
The unique five-metal design of these materials allows for an even distribution of catalytic roles, with chromium favoring CO₂ adsorption and zirconium or hafnium promoting electron transfer. Further study is needed to validate these promising findings through experimental synthesis and electrochemical testing.
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