A Two-Dimensional Porphyrin Coordination Supramolecular Network Cathode for High-Performance Aqueous Dual-Ion Battery.
Yuanming TanZhao ChenZengren TaoAnding WangShimei LaiYangyi YangPublished in: Angewandte Chemie (International ed. in English) (2023)
Iodine has great potential in the energy storage, but high solubility of I 3 - has seriously delayed its promotion. Benefited from abundant active sites and the open channel, two-dimensional coordination supramolecular networks (2D CSNs) is considered to be a candidate for the energy storage. Herein, a 2D porphyrin-CSN cathode named Zn-TCPP for aqueous iodine dual-ion battery (DIB) shows an excellent specific capacity of 278 mAh g -1 , and a high energy density of 340 Wh kg -1 at 5 A g -1 , as well as a durable cycle performance of 5000 cycles and a high Coulombic efficiency of 98 %. Molecular orbital theory, UV/VIS, Raman spectroscopy and density functional theory (DFT) calculations reveal charge-transfer interaction between the donor of porphyrin nitrogen and the acceptor of I 3 - , and computational fluid dynamics (CFD) simulations demonstrate the contribution of 2D layered network structure of Zn-TCPP to the penetration of I 3 - .
Keyphrases
- density functional theory
- energy transfer
- molecular dynamics
- raman spectroscopy
- photodynamic therapy
- solar cells
- ion batteries
- reduced graphene oxide
- quantum dots
- metal organic framework
- heavy metals
- ionic liquid
- electron transfer
- dual energy
- minimally invasive
- water soluble
- single cell
- single molecule
- solid state
- magnetic resonance
- gold nanoparticles
- climate change
- risk assessment
- molecular docking
- network analysis
- highly efficient
- transition metal