Electrophoretic deposition of materials using humic acid as a dispersant and film forming agent

作者: Mustafa S. Ata , Patrick Wojtal , Igor Zhitomirsky

DOI: 10.1016/J.COLSURFA.2016.01.042

关键词:

摘要: Abstract Electrophoretic deposition (EPD) method has been developed for the of humic acid (HA) from solutions in water or mixed water–ethanol solvent. The mechanism was based on electrophoresis anionic HA species, local pH decrease at anode, charge neutralization and precipitation. yield can be varied by variation concentration voltage. showed remarkable adsorption various materials, which involved different mechanisms. used as a dispersing, charging film forming agent EPD materials types, such oxide nanoparticles TiO2 MnO2, mineral particles halloysite nanotubes huntite platelets, metal Ni Pd, other SiC multiwalled carbon (MWCNT). use co-dispersant allowed fabrication MnO2–MWCNT composites with MWCNT content. obtained films applications functional properties deposited catalytic, flame retardant, molecular storage electronic properties. Testing results promising performance electrodes electrochemical supercapacitors.

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