supported by the National Natural Science Foundation of China (Grant Nos. 20677073,20537020);the Major State Basic Re-search Development Program of China (Grant No. 2007CB407304)
Nanoscale iron was detected by TEM, X-ray diffraction and X-ray photoelectron spectroscopy. It was found that the size of the nanoscale iron particles is in the range of 30?40 nm according to TEM image, and it contain...