Fig. 4From: Furfuralcohol Co-Polymerized Urea Formaldehyde Resin-derived N-Doped Microporous Carbon for CO2 CaptureFT-IR spectra of typical activated samples. UFA-2-600 (a), UFFA-2-600 (b), UFFA-4-600 (c), and UFFA-2-800 (d)Back to article page