Piperazine-Linked Phthalocyanine Covalent Organic Frameworks for Efficient Anodic Lithium Storage DOI
Rong Jiang, Xiaoyang Wang,

Chunhui Shi

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 12, 2025

Organic anode materials have been considered as promising electrodes for achieving low-cost and sustainable lithium-ion batteries (LIBs). However, organic face challenges, such inadequate cycling stability sluggish reaction kinetics, leading to an unsatisfactory LIB performance. Covalent frameworks (COFs) possess a porous designable structure coupled with exceptional stability, making them candidates in LIBs address the challenges. Herein, two piperazine-linked conjugated phthalocyanine-based COFs (named CoPc-BTM-COF CoPc-DAB-COF) were fabricated from reacting hexafluorophthalocyanine cobalt(II) (CoPcF16) 1,2,4,5-benzenetetramine (BTM) 3,3'-diaminobenzidine (DAB), respectively. Powder X-ray diffraction electron microscopy analyses combination theoretical simulation reveal their crystalline nature sql net AA arranged stacking pattern. The pore sizes of these Pc-COFs are 1.62 1.90 nm according N2 sorption measurement, which facilitates rapid transport Li+ ions. immersion experiments disclose remarkable stability. These advantages, together nitrogen-rich skeletal structures, lead outstanding anodic storage capabilities, rate performance, favorable In particular, both exhibit high capacities 877 669 mAh g-1 at 100 mA g-1, superior most reported anodes, showing application potential high-performance LIBs.

Language: Английский

Piperazine-Linked Phthalocyanine Covalent Organic Frameworks for Efficient Anodic Lithium Storage DOI
Rong Jiang, Xiaoyang Wang,

Chunhui Shi

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 12, 2025

Organic anode materials have been considered as promising electrodes for achieving low-cost and sustainable lithium-ion batteries (LIBs). However, organic face challenges, such inadequate cycling stability sluggish reaction kinetics, leading to an unsatisfactory LIB performance. Covalent frameworks (COFs) possess a porous designable structure coupled with exceptional stability, making them candidates in LIBs address the challenges. Herein, two piperazine-linked conjugated phthalocyanine-based COFs (named CoPc-BTM-COF CoPc-DAB-COF) were fabricated from reacting hexafluorophthalocyanine cobalt(II) (CoPcF16) 1,2,4,5-benzenetetramine (BTM) 3,3'-diaminobenzidine (DAB), respectively. Powder X-ray diffraction electron microscopy analyses combination theoretical simulation reveal their crystalline nature sql net AA arranged stacking pattern. The pore sizes of these Pc-COFs are 1.62 1.90 nm according N2 sorption measurement, which facilitates rapid transport Li+ ions. immersion experiments disclose remarkable stability. These advantages, together nitrogen-rich skeletal structures, lead outstanding anodic storage capabilities, rate performance, favorable In particular, both exhibit high capacities 877 669 mAh g-1 at 100 mA g-1, superior most reported anodes, showing application potential high-performance LIBs.

Language: Английский

Citations

0