Extended Data Fig. 2: The preparation and characterization of charged-sorbents.
From: Capturing carbon dioxide from air with charged-sorbents
The activated carbon fabric ACC-5092-10 cloth was applied with a constant potential (a) 0.565 V vs SHE for the PCS-OH. (b) −0.235 V vs SHE for the NCS-K. (c) Powder X-ray diffraction pattern (Cu Kα radiation, λ = 1.5406 Å) of positively charged-sorbent, negatively charged-sorbent, soaked cloth and blank cloth. The peak at approximately 18° was present in all samples, and its origin is unknown. (d) Titration of samples (88 mg pieces) with 0.1 M HCl at 25 °C. PCS-OH 0.565 and PCS-OH 0.365 refer to the samples of PCS-OH prepared at 0.565 V and 0.365 V for 4 h, respectively. Standard deviations are calculated from 2 independent samples. (e) The hydrogen weight percentage determined from combustion analysis from blank cloth, soaked cloth, PCS-OH and NCS-K. Standard deviations are calculated from 3 independent samples.
