Skip to main content
. 2022 Jun 22;144(27):12020–12031. doi: 10.1021/jacs.2c01950

Figure 5.

Figure 5

(a) NH3 synthesis rate vs the external Ni site densities of different supported Ni catalysts on SiO2 and MCM-41 (at 36 kJ/L, 35 °C and 1 bar). (b) Desorbed NH3 concentration and (c) corresponding accumulated amount vs purging time in the plasma alone and plasma-catalyst systems (catalyst amount: ∼0.5 g, mixed N2/H2 as the purge gas). (d) Plasma-driven decomposition of NH3 in the plasma alone and plasma-SiO2/-MCM-41 systems (init. adsorption: initial adsorption stage; re-adsorption: NH3 re-adsorption stage; NH3 dec. rate: NH3 decomposition rate; discharge power = 5 W, with ∼0.1 g catalysts).