CNCs/SWNT composites were prepared by self-assembly method. The crystal structure,thermal stabilityand electrochemical properties of CNCs/SWNT composites were studied by using X-ray diffraction,thermogravimetricanalysis,cyclic voltammograms and electrochemical impedance spectra. Characterization studies showed that thehydroxyl groups of CNCs formed hydrogen bonds with carboxyl groups of SWNT,leading to the decreased crystallinityand improved thermal stability of CNCs/SWNT composites. Compared with CNCs,the ...