To address the challenges associated with hydrogen as an energy source, a shift towards a hydrogen-based society is crucial. Liquid Organic Hydrogen Carrier (LOHC) technology has emerged as a promising solution for safe and efficient hydrogen storage and transport. By utilizing existing fossil fuel infrastructure, LOHCs offer a cost-effective means of distributing hydrogen. However, enhancing the efficiency of LOHC systems requires optimizing the molecular structure of LOHC materials. Dr. Jihoon Park and the research team at the Korea Research Institute of Chemical Technology (KRICT) have focused on molecular engineering to overcome limitations in existing LOHC compounds. Through their work, they have developed advanced LOHC materials, such as 2-benzyl-6-methylpyridine (BMP) and benzyl-methylbenzyl-benzene (BMB), which have shown significant improvements in hydrogen storage and release rates. By precisely controlling the placement of functional groups like methyl groups within LOHC materials, the team has unlocked new potential for efficient hydrogen storage. The groundbreaking discovery of the impact of methyl groups on LOHC performance has led to the development of pure LOHC materials with enhanced properties. The new LOHC compounds exhibit faster hydrogenation rates and increased hydrogen release compared to traditional LOHC materials, showcasing the potential for more efficient hydrogen energy systems. Dr. Jihoon Park emphasizes that these advancements can influence the design of future hydrogen storage materials, contributing to the establishment of a safer and more sustainable hydrogen energy-based society.