Cu content and textural properties of the Cu/BN samples. The Cu content was obtained from ICP-MS analyses. BET area (S_BET), micropore volume (V_mic) and total pore volume (V_tot) were derived from N₂ sorption isotherms at 77 K and calculated as described in the experimental section.

Sample	Cu content [wt%]	S BET [m2 g−1]	V mic [cm3 g−1]	V tot [cm3 g−1]
BN	0	508	0.68	1.02
1% Cu/BN	0.5	478	0.68	1.07
5% Cu/BN	2.5	493	0.68	0.93
10% Cu/BN	4.4	471	0.67	0.74