Nitrogen-rich metal–organic framework of nickel( ii ) as a highly efficient and reusable catalyst for the synthesis of cyclic carbonates at ambient pressure of CO 2

-TPD respectively. In addition, the MOF catalyst was presented as highly recyclable without significant loss of activity after six reaction cycles and low metal ion leaching (analyzed by (ICP-OES)). Thermogravimetry-differential thermal analysis (TG-DTA) showed the MOF catalyst had high thermal stability up to 318 °C.