Fabrication of Yolk-Shell Cu@C Nanocomposites as High-Performance Catalysts in Oxidative Carbonylation of Methanol to Dimethyl Carbonate

Table 3 Textural parameters of HCS, Cu@C, and activated support A-HCS and catalyst Cu@A-HCS

Catalysts	S_BET ^a (m²/g)	D_BJH ^b (nm)	V_T ^c (cm^3/g)	V_mic ^d (cm³/g)	V_Mic/V_T ^d (%)
A-HCS	989	3.89	0.78	0.37	47
Cu@A-HCS	771	3.91	0.50	0.36	72
HCS	471	4.01	0.37	0.20	54
Cu@C-0.12	365	3.99	0.26	0.19	73

^aThe specific area (S_BET) is calculated by the Brunauer-Emmet-Teller (BET) method
^bD_BJH represents the pore size distribution calculated by the Barrett-Joyner-Halenda (BJH) method
^cV_T represents the total pore volume measured at P/P₀ = 0.98
^dV_mic represents the volume of micropore calculated by t-plot method