Fig. 2: Initial evaluation of catalysts and conditions for electrochemical HCONH2 synthesis. | Nature Communications

Fig. 2: Initial evaluation of catalysts and conditions for electrochemical HCONH2 synthesis.

From: Revisiting Pt foil catalysts for formamide electrosynthesis achieved at industrial-level current densities

Fig. 2

a Catalysts screening of HCONH2 electrosynthesis after 1 h at 100 mA cm−2 based on galvanostatic methods (4.0 M EG + 1.0 M NH3 + 0.5 M KHCO3. pH: 9.44 ± 0.032). b Eads of EG, NH3, and HCONH2 on various catalyst surfaces. c I–V curves (with 20% iR compensation versus RHE) under varying conditions (1.0 M EG + 1.0 M NH3 + 0.5 M KHCO3, 1.0 M NH3 + 0.5 M KHCO3, 1.0 M EG + 0.5 M KHCO3, and 0.5 M KHCO3. pH: 10.00 ± 0.030, 10.00 ± 0.040, 8.30 ± 0.012, and 8.00 ± 0.028; Resistance: 5.47 ± 0.332, 4.63 ± 0.189, 7.86 ± 0.269, and 6.17 ± 0.435 ohms). d 1H NMR spectra after 1 h of continuous electrolysis at 100 mA cm−2 under the four conditions. e FEs of HCONH2 under each condition. The error bars represent the standard deviation of three independent measurements. Source data are provided as a Source Data file.

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