Table 1
Mesoporous structures of the α-Fe2O3 synthesized at different temperatures for 12.0 h (FeCl3/H3BO3/NaOH = 2:3:4)
α-Fe2O3 nanoarchitecture	Temperature	Multipoint BET	Total pore volume	Average pore diameter
	(°C)	(m2 g−1)	(cm3 g−1)	(nm)
1	120	21.3	3.9 × 10−2	7.3
2	150	5.2	2.9 × 10−2	22.1
3	180	2.6	2.9 × 10−2	44.7
4	210	2.0	2.1 × 10−2	40.3

Zhu et al. Nanoscale Research Letters 2013 8:2   doi:10.1186/1556-276X-8-2