@article{oai:kitami-it.repo.nii.ac.jp:00006903,
 author = {ITOH, HIDENOBU and MORIOKA, HIROKI and KODAIRA, MOTOI and OKAZAKI, NORIYASU and TADA, AKIO},
 journal = {Phosphorus Research Bulletin},
 month = {Dec},
 note = {An iron phosphate gel prepared in organic solvents by the sol-gel method was heated in vacuo, and the structure, valence of the iron atoms, and electrical conductivity were investigated. It was found that the iron phosphate (FePO_4) gel containing carbonaceous deposits is easily reduced by heating in vacuo above 500 ℃ and crystallized as Fe_2P_2O_7. The gels evacuated at 500 ℃ and 700 ℃ contained different valence iron atoms, Fe^<2+> and Fe^<3+>, and showed semi-conductive characteristics. The electric conductivity of the gel evacuated at 700 ℃ was lower than that of Cr_2O_3, but higher than CoO., application/pdf},
 pages = {105--110},
 title = {STRUCTURE AND PHYSICOCHEMICAL PROPERTIES OF VACUUM-HEATED IRON PHOSPHATE GEL},
 volume = {12},
 year = {2001}
}