Table 4. BET surface area, pore aiameter, and pore volume of the synthesized materials.

Sample	BET surface area (m2 g−1)	Pore diameter (nm)	Pore volume (cm3 g−1)
H	67.76	27.6	0.542
2-CuH	57.57	27.9	0.402
5-CuH	41.39	23.4	0.242
H500	58.88	26.4	0.389
2-CuH500	50.05	27.5	0.345
5-CuH500	26.34	16.7	0.109