/ Scaning electrochemical microscopy
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SECM topographic images of a microparticulate deposit of Egyptian blue on a graphite plate immersed into 5.0 mM K4Fe(CN)6 solution in 0.25 M HAc/NaAc at pH 4.75. Images recorded a) before and b) after application of a constant potential input of 0.
SECM topographic images of a microparticulate deposit of Egyptian blue on a graphite plate immersed into 5.0 mM K4Fe(CN)6 solution in 0.25 M HAc/NaAc at pH 4.75. Images recorded a) before and b) after application of a constant potential input of -0.25 V vs. Ag/AgCl (3 M NaCl) during 2.5 min to the substrate electrode. ET = +0.25 V; ES = 0.00 V.