Preparation of Nano-Fe2O3 by CO2-supercritical-process-assisted Sol-gel Method Luo, Qingping ; Nie, Fude ; Long, Xinping ; Qiao, Zhiqiang ; Yang, Guangcheng ; Ma, Yongjun Abstract Publication: Current Nanoscience Pub Date: August 2014 DOI: 10.2174/15734137113096660112 Bibcode: 2014CNan...10..722L