Fig. 3: N2/D2 and 14N/15N isotopic experiments of TMs-SrNH catalysts. | Nature Communications

Fig. 3: N2/D2 and 14N/15N isotopic experiments of TMs-SrNH catalysts.

From: Multiple reaction pathway on alkaline earth imide supported catalysts for efficient ammonia synthesis

Fig. 3

Surface reaction profiles for (a) Fe/SrNH, (b) Co/SrNH and (c) Ni/SrNH catalysts with the reaction gas of N2 and D2 at the temperature increased from room temperature to 400 °C. Prior to N2/D2 isotopic reaction, each sample is pretreated in H2 + N2 at 400 °C for 24 h. d Reaction rate of N2 isotope exchange over Fe/SrNH, Co/SrNH and Ni/SrNH catalysts at 26.7 kPa (15N2:14N2 = 1:4). Each sample is pretreated in H2 at 400 °C for 24 h before the 14N/15N isotopic experiment. Error bars represent the standard deviation from three independent measurements.

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