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Influence of Cu on nanostructure of Fe 3 O 4 particles
Author(s) -
Ikeda Hiroshi,
Samusawa Itaru,
Tachibana Shunichi,
Shiotani Kazuhiko,
Hase Kazukuni
Publication year - 2019
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201910794
Subject(s) - nanostructure , materials science , lattice (music) , octahedron , crystallography , copper , crystal structure , metallurgy , nanotechnology , chemistry , physics , acoustics
Cu is effective on the refinement of Fe 3 O 4 rust particles but its mechanism is not clarified. In this study, the influence of Cu on the nanostructure of Fe 3 O 4 particles was investigated through a detailed analysis of the characteristics of the artificially synthesized Fe 3 O 4 particles formed with Cu 2+ by various means. X‐ray absorption fine structure analysis showed that Cu is substituted for octahedral Fe and exists as Cu x Fe (3‐x) O 4 in Fe 3 O 4 . The first‐principle calculation showed that lattice strain resulted around the substituted Cu. These results suggest that this lattice strain around substituted Cu inhibited the lattice growth and contributed to the refinement of Fe 3 O 4 particles.