New colloidal route for electrostatic assembly of oxide nanoparticle - carbon nanotube composites

- New colloidal approach was proposed for the fabrication of composites.
- Metal oxide particles were positively charged and dispersed using phosphate ester.
- Carbon nanotubes were negatively charged and dispersed using organic dye.
- MnO2-carbon nanotubes composites were obtained by heterocoagulation.
- Composites are promising materials for electrochemical supercapacitors.