ABSTRACT
Carbon-based materials are of interest in developing superca-
pacitors. Hitherto, variety of carbonaceous materials have been
investigated, developed, and commercialized as supercapacitor
electrodes. As power and energy densities have become imperative
for the development of supercapacitors, recently attention has
been focused to introduce carbon nanotubes (CNTs) as a three-
dimensional support for materials exhibiting pseudocapacitive
properties, for example, electrically conducting polymers (PANI, PPy,
PEDOT) or transition metal oxides, for example, MnO2. It has been
confirmed that CNTs play a vital role, forming conducting matrix
around the electrode-active materials forming nano-composite
electrodes. This chapter is devoted to studies centered on CNTs as
support for various pseudocapacitive materials and it explains the
merits of having CNTs as conductive additive support in the context
of enhancing the achievement of active capacitances.