MXenes as Hydrogen Storage Materials*

The ever-increasing need for electricity will require foremost increased efficiency in the uses of electric energy, more secure and sustainable energy resources and storages.  To be better tailored to these challenges, novel materials for electrochemical and chemical energy storages that can efficiently store and deliver electric energy is highly important. In this case, hydrogen fuel stands out as a promising energy solution, and able offering a clean alternative to conventional energy sources while exhibiting the highest specific energy among many alternatives. Due to their high aspect ratio and tunable surface, slit-shape ion/mass transport channels, MXenes is a promising candidate in hydrogen storage materials. To address this issue, I will share with you our recent efforts based on theoretical studies with experimental supports from our collaborators. Based on our findings, some key avenues for future research that may help overcome the challenges and enable MXenes materials attain its full potential in this problem will be discussed.