fig3

Figure 3. Structural formula and REDOX mechanism of some designable organic electrode materials. (A) REDOX mechanism of p-benzoquinone and 3, 4, 9, 10-perylenetetracarboxylic dianhydride. (B) From top to bottom are biphenyl, naphthalene, triphenylene, and phenanthrene^[29]. (C) Polymerized PTCDA monomers with different short alkyl chains^[30]. (D) The truxenone-based covalent organic framework material^[31]. (E) The conjugated microporous polymers material^[32].