Researchers at TU Wien and the University of Innsbruck have uncovered an unexpected reaction pathway that synthesizes methane—the primary component of natural gas—from carbon dioxide and water. The process uses a nickel–zirconia catalyst to convert CO2 captured from exhaust streams or directly from the air into fuel.
The discovery could allow methane to become a climate-neutral energy source, retaining its industrial utility while cutting net carbon emissions. Natural gas remains crucial for sectors like steelmaking and chemical production, where electrification is challenging.
The research leverages a previously unknown intermediate reaction step on the nickel–zirconia surface, enabling efficient conversion at moderate temperatures. Detailed findings were published in a peer-reviewed journal, though exact efficiency metrics were not disclosed in the source material.
The breakthrough opens a path to produce methane that is net-zero in carbon impact, provided renewable energy powers the process. Scaling this method could reduce reliance on fossil natural gas in hard-to-abate industries.
No independent verification or commercial readiness assessment was included in the source. Further research is needed to evaluate economic viability at industrial scale.