Fig. 2: Particle size evolution of Pt/C catalysts during sintering tests.
From: Quantification of critical particle distance for mitigating catalyst sintering
a–d Particle size distribution of the Pt/C catalysts after sintering tests at different temperatures in 5% H2/Ar for 120 min, clearly showing the strong loading-dependent sintering behavior for each carbon support. e Average particle size of the Pt/C catalysts with corresponding critical loading for each support, indicating the sintering resistance of the catalysts. The particle size was estimated from electron microscopy results. f Average particle size of the Pt/C catalysts estimated from XRD results, confirming the loading-dependent sintering behavior.
