Ethanol steam reforming (ESR) promises green H2, but tangled networks hide controlling intermediates. In-situ SVUV-PI-MBMS with DFT/microkinetics on Ni/La2O3 pinpoints vinyloxy (CH2CHO), not acetyl, as the chain carrier, steering most flux and redefining ESR mechanisms.
- Zaili Xiong
- Xiaokuan Ban
- Fei Qi
