fig3
Figure 3. (A) FT-IR spectra of the 2v-Phen, POP-Phen, Ir/POP-Phen, and Ir/POP-Phen-spent; (B) PXRD patterns of the POP-Phen, Ir/POP-Phen, and Ir/POP-Phen-spent; (C) N2 sorption isotherm, and pore size distribution of the Ir/POP-Phen calculated by NLDFT; (D) TG curve of the Ir/POP-Phen. FT-IR: Fourier-transform infrared; POP-Phen: Ir/POP-Phen: porous phenanthroline-based polymer-supported single-iridium-atom catalyst; NLDFT: nonlocal density functional theory; TG: thermogravimetric.
