Fig. 1: Product characteristics of the scCO2 experiments. | Communications Earth & Environment

Fig. 1: Product characteristics of the scCO2 experiments.

From: Supercritical carbon dioxide likely served as a prebiotic source of methanethiol in primordial ocean hydrothermal systems

Fig. 1

a GC–MS chromatogram of the sulfur-containing compounds measured after the 7-day reaction of H2, H2S, and CO2 in the presence of MoS2 at 200 °C. See Supplementary Fig. 4 for the mass spectra of identified species. The yields of products are shown in b together with the results after the 3- and 14-day experiments. c The amounts of H2, CO, CH4, and HCOO– after the three reaction durations. The yield on the left y-axis (0–350 μmol) refers to CO, CH4, and HCOO–, while the corresponding dissolved concentration of HCOO– is indicated on the right. d The yields of methanethiol, CO, CH4, and HCOO– under various reaction conditions. w and w/o denote with and without, respectively. d represents day. All runs were conducted under scCO2 at 200 °C. The error bars in a–d were determined based on multiple independent runs under the same reaction conditions (see the “Methods” section).

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