Hydrogen can be physically adsorbed onto the surface of porous materials like metal-organic frameworks (MOFs) and covalent organic frameworks (COFs). Adsorption occurs through weak van der Waals forces between the hydrogen molecules and the surface of the material. MOFs and COFs offer extremely large internal surface areas for adsorption due to their nanoporous structures. Some promis... https://www.newswirestats.com/hydrogen-storage-market-size-and-share-analysis-growth-trends-and-forecasts/