This work demonstrates super colossal barocaloric effect in one of the “simplest” materials—H2O, with a reversible entropy change as much as 728 J·kg-1·K-1 under a small pressure 0.1 GPa by adding a little amount of GdCl3. Neutron combined with molecular dynamics simulations revealed the mechanism and inferred that H-bond engineering can be an attractive approach for designing novel caloric materials.
- Yue Kan
- Feng-Xia Hu
- Bao-Gen Shen