. 2023 Nov 28;13(49):34681–34692. doi: 10.1039/d3ra06071c

Results of EDS analysis (exemplary sum spectra) for CO/Cu solid residue after hydrolysis catalyzed by 2% H₂SO₄ and CO/Cu solid residue after hydrolysis catalyzed by 2% H₃PO₄, with average values for weight percentage of copper.

Sample	Acid used in hydrolysis	Spectra	Average values of Cu wt%
2-SR	2% H₂SO₄		0.71
4-SR	2% H₃PO₄		1.18

Results of EDS analysis (exemplary sum spectra) for CO/Cu solid residue after hydrolysis catalyzed by 2% H2SO4 and CO/Cu solid residue after hydrolysis catalyzed by 2% H3PO4, with average values for weight percentage of copper.