Elementary reactions and corresponding pre-exponential factors (ν) and reaction constants (k, in corresponding units) in the ammonia decomposition process over Ru(0001), Ru(111) and Ir(111) at 300 K.

No.	Reaction	Ru(0001)		Ru(111)		Ir(111)
		ν	k	ν	k	ν	k
A1		1.29 × 108	48.09	1.28 × 108	47.75	9.53 × 107	35.60
D1		1.29 × 108	3.53 × 10−5	1.28 × 108	1.79 × 10−3	9.53 × 107	3.60 × 10−8
R1		1.09 × 1013	4.2 × 10−8	5.37 × 1012	1.36 × 10−7	3.15 × 1012	7.63 × 10−14
R2		2.61 × 1013	1.38 × 10−10	1.12 × 1013	1.24 × 10−6	6.60 × 1012	4.73 × 10−7
R3		4.01 × 1012	60.34	3.95 × 1012	8.14	3.71 × 1012	1.48 × 10−14
R4		7.78 × 1012	1.15 × 10−9	7.51 × 1012	2.31 × 10−7	5.06 × 1012	5.26 × 10−16
R5	NH* + * → N* + H*	7.13 × 1012	2.97 × 10−5	6.01 × 1012	2.92 × 10−17	6.93 × 1012	2.86 × 10−3
R6	N* + H* → NH* + *	8.32 × 1012	6.17 × 10−8	7.19 × 1012	3.42 × 10−21	5.74 × 1012	6.68 × 103
R7		1.06 × 1013	2.11 × 10−28	1.08 × 1013	5.03 × 10−29	9.18 × 1012	2.13 × 10−20
R8		1.97 × 1012	4.08 × 10−8	5.48 × 1011	9.95 × 10−18	7.79 × 1011	3.24 × 10−30
D2		1.29 × 108	1.24 × 1012	1.28 × 108	410.62	9.52 × 107	1.25 × 106
A2		1.29 × 108	1.26 × 104	1.28 × 108	1.25 × 104	9.52 × 107	9.34 × 103
R9		1.44 × 1013	1.86 × 10−4	1.79 × 1013	4.56 × 104	6.25 × 1012	2.12 × 102
R10		4.99 × 1011	6.21 × 1010	8.54 × 1012	1.12 × 1013	8.14 × 1011	2.65 × 106
D3		1.29 × 108	7.04 × 103	1.28 × 108	4.84 × 104	9.54 × 107	3.86 × 102
A3		1.29 × 108	7.29 × 102	1.28 × 108	7.23 × 102	9.54 × 107	5.39 × 102