Table 2. Kinetic parameters of HCl, C₂H₂, and C₂H₃Cl adsorption and desorption over bare supports and selected gold catalysts.

Catalyst	HCl			C2H2			C2H3Cl
	k ads,eff, s–1	k des, s–1	K c , —	k ads,eff, s–1	k des, s–1	K c , —	k ads,eff, s–1	k des s–1	K c , —
NC	— a	— a	— a	1.2 × 103	1.4 × 102	8.6	1.2 × 103	14	90.6
Au/NC-473	8 × 103	2 × 10–3	4 × 106	9.3 × 102	1.3 × 102	7.2	1.2 × 103	17	70.9
Au/NC-1073	— a	— a	— a	4.7 × 102	87	5.4	1.2 × 103	14	84.6
Au/NC-473-12 h	5 × 103	2 × 10–2	3 × 105	— b	— b	— b	6.7 × 102	19	34.9
AC	— a	— a	— a	5.5 × 103	4.5 × 102	12.3	8.1 × 104	13	6.2 × 103
Au/AC-473	3 × 103	1 × 10–6	3 × 109	5.0 × 102	1.6 × 102	3.1	7.1 × 106	1.2 × 105	58.0
Au/AC-673	5 × 102	4 × 102	1.3	4.1 × 102	1.2 × 102	3.4	6.7 × 106	7.7 × 104	87.0
Au/AC-473-12 h	1 × 102	0.5	2 × 102	1.8 × 102	1.0 × 102	1.8	2.3 × 103	44	53.0

^aComplete consumption of HCl due to irreversible adsorption.

^bC₂H₂ simply diffused through the reactor.

^cThe ratio of k_ads,eff : k_des.