“…More importantly, the existence of a thiophene-based structure with high conductivity and charge mobility enables the material to transfer electrons rapidly during the HER, which greatly promotes its electrocatalytic performance. The electrocatalytic performance of the obtained materials, especially the HER performance under alkaline conditions, is superior to those of previously reported conjugated microporous polymers (CMPs), 28,29 COPs, 30 MOFs 31,32 and all metal-free COFs. 24,26,33 The obtained materials not only showed excellent HER performance under alkaline conditions but also excellent electrocatalytic performance under acidic and neutral conditions, expanding the scope of application of COFbased materials in HER applications.…”