▶ Date: 2021.11.04(THU)

▶ Time: 16:30 ~ 17:30

▶ Speaker: Prof. Chang Won Yoon(POSTECH, Chemical Eng)

▶ Title: Chemical Hydrogen Storage Technology for High Capacity and Long Distance Transportation

▶ Abstract: To address the increasing energy and environmental issues, sustainable energy carriers for the current mobility and power generation are being studied extensively. Hydrogen is considered as a promising renewable energy carrier because of its high gravimetric energy storage density of ca. 33.3 kWh·kg-1. However, the low volumetric energy density of gaseous hydrogen (2.97 Wh·L-1@273 K & 1 atm) limited its use for different energy applications particularly associated with high capacity and long distance hydrogen shipping. In the regard, a safe and economically viable hydrogen storage system that enables to transport mass quantities of hydrogen in a chemical form has attracted significant attention. Promising candidate materials for the purpose include liquid organic hydrogen carriers (LOHCs) and ammonia (NH3) which can store and release hydrogen via chemical reactions on demand. In the presentation, recent trends for chemical hydrogen storage technology utilizing LOHC and NH3 will be introduced.