Rowling Adam, Doulcet Julien, Dawson Robert, Tapia-Ruiz Nuria, Trewin Abbie
Department of Chemistry, Lancaster University, Bailrigg, Lancaster LA1 4YB, U.K.
Department of Chemistry, University of Sheffield, Dainton Building, 13 Brook Hill, Sheffield S3 7HF, U.K.
ACS Appl Mater Interfaces. 2024 Sep 11;16(36):47631-47638. doi: 10.1021/acsami.4c09710. Epub 2024 Aug 26.
Organically synthesized porous carbon (OSPC) is a subclass of conjugated microporous polymer materials that have shown potential applications as anodes in ion batteries. However, a challenging, low-yielding, multistep synthetic route (the A method) has hindered further exploration of this exciting family. Here, OSPC-1 has been synthesized via an alternative, efficient one-pot method from commercially available reagents (the B method), hereafter referred to as OSPC-1b in contrast to OSPC-1a, where it is synthesized via the A method. Characterization revealed the same polymer structure and the highest surface area to date of an OSPC (or OSPC analogue) family member for OSPC-1b with 909 m g. OSPC-1b was tested as an anode for Li-ion batteries, demonstrating the same high capacity, fast charging, resistance to degradation, and inhibition of the formation of dangerous lithium dendrites as OSPC-1a. Furthermore, the electrochemical properties of OSPC-0 were evaluated for the first time, agreeing with previously predicted values, giving scope for the design and targeting of specific properties.
有机合成多孔碳(OSPC)是共轭微孔聚合物材料的一个子类,已显示出在离子电池中作为阳极的潜在应用。然而,一种具有挑战性、低产率的多步合成路线(A方法)阻碍了对这个令人兴奋的材料家族的进一步探索。在这里,通过一种替代的、高效的一锅法,由市售试剂合成了OSPC-1(B方法),与通过A方法合成的OSPC-1a相比,此后称为OSPC-1b。表征显示,OSPC-1b具有与OSPC(或OSPC类似物)家族成员相同的聚合物结构和迄今为止最高的表面积,为909 m²/g。OSPC-1b作为锂离子电池的阳极进行了测试,显示出与OSPC-1a相同的高容量、快速充电、抗降解以及抑制危险锂枝晶形成的性能。此外,首次评估了OSPC-0的电化学性能,与先前预测的值一致,为特定性能的设计和靶向提供了空间。