Graphene

The use of Hydrogen energy was proposed in the last century as a ‘perfect’ solution to the short of energy. In hydrogen economy, people would utilize the solar energy to split water into hydrogen and oxygen.  Hydrogen burns to produce energy, and turns into water, doing completely no harm to the environment. Yet for a long time, the research on photocatalytic water splitting has remained stagnant, as the great difficulties in separating and safely storing hydrogen repelled researchers from making further progress. Recently, a team led by Prof. JIANG Jun and Prof. ZHAO Jin from the National Laboratory of Physical Science at Microscale has proposed a multi-layer structure where the produced hydrogen is completely isolated and stored with a high-density level, significantly promoting the possibility of converting solar energy to hydrogen energy. The new structure is like a sandwich, where a carbon nitride(C3N4) layer lies between two graphene sheets modified by different functional