Fig. 7: Proposed reaction pathway for acetylene semi-hydrogenation on DPC/RuPt-10-Calc.

a Formation of various reaction intermediates showing the role of co-existing oxide and reduced species based on in-situ FTIR studies; b energies of initial (IS), transition (TS), intermediate (IM), and final (FS) states formed in the acetylene semi-hydrogenation by DFT calculation using nudged elastic band method. (Source data (7b) are provided as a Source Data file).