BY ALEXANDER FARRELL
For two centuries, petrochemistry has been built on digging carbon out of the ground. Kyoto University Professor Kitagawa – a recipient of the 2025 Nobel Prize in Chemistry – believes the next century will be built on extracting molecules directly from the air. He calls the opportunity “invisible gold.”
The technology behind this is metal-organic frameworks, or MOFs. These crystalline materials are built from metal clusters joined by organic molecules, forming sponge-like structures riddled with microscopic pores. By tuning those pores at the molecular level, scientists can design MOFs that selectively capture, store or release specific gases.
Mastering gas separation and storage carries massive industrial and energy implications. MOFs could be used to capture carbon, store hydrogen, produce synthetic fuels, and even regulate humidity in manufacturing.
For Japan, dependent on imported fuels for nearly 90% of its energy needs, such technology could be transformative. Recent conflict in the Middle East provides a reminder of how heavily the country relies on energy shipments passing through the Gulf, and how exposed those flows remain to geopolitical risk.
With few hydrocarbons of its own, Japan must look elsewhere to strengthen its energy security. Around Kyoto, a growing cluster of universities, startups and industrial firms is now trying to move MOFs from laboratory research to commercial deployment – potentially allowing the country to produce cleaner fuels and store energy more efficiently at home.