Fig. 3. LT-DRM performance of the Ni#Y2O3- and other Ni-based catalysts. Catalyst amount = 0.1 g; reaction temperature = 723 K; CH4/CO2/Ar = 1/1/98 in vol%; flow rate = 100 mL min–1. (a) CO-/H2 formation rates and CH4-/CO2 consumption rates for the Ni–Y2O3 composites with different Y contents. The Ni#Y2O3 corresponds to the Ni/Y ratio of the Ni–Y alloy = 1/1. (b) The turn-over frequencies (TOFs) towards CH4 conversion over the Ni–Y2O3 composites with different Y contents. The Ni#Y2O3 corresponds to the Ni content of the Ni–Y alloy = 50%. (c) CO formation (left axis) and reactor pressure (right axis) for the Ni#Y2O3- and supported Ni catalysts. (d) SEM images of the Ni/Y2O3- and Ni#Y2O3 catalysts, 6 h after subjected to the LT-DRM atmosphere.
