“…Decomposition of hydrocarbons, e.g., methane (CH 4 ) [56,59,62,[64][65][66]195,[231][232][233][234][235][236][237][238] (Fig. 6), ethane [239], and acetylene (C 2 H 2 ) [58,[60][61][62]77,236,[240][241][242][243][244], at 450-1350 °C in N 2 [62,77], N 2 /H 2 [56,62,64], N 2 /H 2 /Air [59], N 2 /air [59], N 2 /NH 3 [65,66,231], N 2 /H 2 /NH 3 [242], NH 3 [60,61,232,236,243,244], NH 3 /H 2 [58,234,235,…”