Fig. 5: Mechanistic and kinetic study profiles for photoconversion of CH4 and CO2 over AuPd/GaN-ci.
From: Photosynthesis of CH3OH via oxygen-atom-grafting from CO2 to CH4 enabled by AuPd/GaN
a Generation rates of methanol from photoconversion of 2.5 mmol H2 + 2.5 mmol CO2, 2.5 mmol H2 + 2.5 mmol CO, 2.5 mmol CH4 + 2.5 mmol CO, and 2.5 mmol CH4 + 0.25 mmol O2 over AuPd/GaN-ci. b GC–MS spectra of CO produced from photoconversion of 12CH4 + 12C16O2 and 12CH4 + 13C16O2. c GC–MS spectra of CH3OH produced from photoconversion of 12CH4 + 12C16O2, 13CH4 + 12C16O2, and 12CH4 + 12C18O2. d Kinetic isotope effects for photoconversion of CH4 with CO2. e The generation rate of methanol from CH4 photoconversion with CO2 over AuPd/GaN-ci under photo-driven and thermal catalytic conditions. The inset of e shows the Arrhenius plot of methanol photosynthesis over AuPd/GaN-ci.
