Kong, Dongqing published the artcilePolycyclic Aromatic Hydrocarbons as a New Class of Promising Cathode Materials for Aluminum-Ion Batteries, COA of Formula: C24H12, the publication is Angewandte Chemie, International Edition (2022), 61(3), e202114681, database is CAplus and MEDLINE.
As an emerging post-lithium battery technol., aluminum ion batteries (AIBs) have the advantages of large Al reserves and high safety, and have great potential to be applied to power grid energy storage. But current graphite cathode materials are limited in charge storage capacity due to the formation of stage-4 graphite-intercalated compounds (GICs) in the fully charged state. Herein, we propose a new type of cathode materials for AIBs, namely polycyclic aromatic hydrocarbons (PAHs), which resemble graphite in terms of the large conjugated ¦Ð bond, but do not form GICs in the charge process. Quantum chem. calculations show that PAHs can bind AlCl4– through the interaction between the conjugated ¦Ð bond in the PAHs and 4–, forming on-plane interactions. The theor. specific capacity of PAHs is neg. correlated with the number of benzene rings in the PAHs. Then, under the guidance of theor. calculations, anthracene, a three-ring PAH, was evaluated as a cathode material for AIBs. Electrochem. measurements show that anthracene has a high specific capacity of 157 mAh g-1 (at 100 mA g-1) and still maintains a specific capacity of 130 mAh g-1 after 800 cycles. This work provides a feasible “theory guides practice” research model for the development of energy storage materials, and also provides a new class of promising cathode materials for AIBs.
Angewandte Chemie, International Edition published new progress about 191-07-1. 191-07-1 belongs to catalysis-chemistry, auxiliary class Electronic Materials, name is Coronene, and the molecular formula is C24H12, COA of Formula: C24H12.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia