A General Synthesis Strategy for Hierarchical Porous Metal Oxide Hollow Spheres

Table 1

The diameter of the as-synthesized carbon spheres.

Concentration of; the glucose (mol/L)	Hydrothermal; temperature (°C)	Hydrothermal; time (h)	Additives	Diameter of the; carbon spheres
0.5	220	12	—	500 nm
0.5	200	12	—	400 nm
0.5	180	12	—	350 nm
0.5	220	10	—	450 nm
0.5	220	8	—	430 nm
0.75	180	12	—	450 nm
0.75	220	12	—	520 nm
1 m	220	12	—	600 nm
0.5	200	10	Ammonia 0.005 mol/L	2–4 μm
0.5	200	10	Ammonia 0.015 mol/L	6–9 μm
0.5	200	10	CTAB 0.005 mol/L	1-2 μm
0.5	200	10	CTAB 0.015 mol/L	700 nm