A renewable bamboo carbon/polyaniline composite for a high-performance supercapacitor electrode material

Abstract

A high-performance conducting polymer-activated carbon composite electrode material was prepared by potentiostatic deposition of aniline on a hierarchically porous carbon, which was carbonized from the natural bamboo. The obtained composite combined the contribution of the unique properties of the activated carbon and pseudocapacitance of the deposited polyaniline layer. This active material possessed excellent rate capability and good cycle performance, over 92% of the original capacitance is retained after 1,000 cycles. The energy density of the composite can reach 47.5 Wh kg −1 calculated only by active mass. It can be a good candidate for high-performance supercapacitor.

Microporous bamboo biochar for lithium-sulfur batteries

“…On the one hand, it demonstrates the cycling performance of T_BC-S-50% electrode is much better than that of B_BC-S-50% when the sulfur loading is literally the same. This can be explained as follows: (1) the T_BC material has far higher specific area and pore volume of the micropores than the B_BC material, which can provide more active sites and reduce the loss of the active material [6]; (2) the activation process removes the impurities, such as tar [4], which are detrimental to the lithium-sulfur cells; (3) the far larger number of micropores in T_BC ensure good electrical contact between sulfur and the conducting carbon framework, further facilitating Li-ion transportation by providing low resistance pathways [18,22].…”

“…Porous biochar, derived from biomass, has attracted increasing attention because it is inexpensive, readily available, environmentally friendly, and sustainable [4,18]. To date various kinds of porous biochar have been reported as the sulfur host for Li−S batteries [4,6,[19][20][21][22].…”

“…To date various kinds of porous biochar have been reported as the sulfur host for Li−S batteries [4,6,[19][20][21][22]. Bamboo as a natural biomass is extensively used in everyday live due to its excellent sustainability, fast growth and short maturity cycle [18]. Most importantly, bamboo has a unique well-connected three-dimensional (3D) microtexture that can be carbonized into a hierarchical porous carbonaceous structure, which possesses large surface area, high conductivity, good connectivity and a highly ordered structure [18].…”

“…Bamboo as a natural biomass is extensively used in everyday live due to its excellent sustainability, fast growth and short maturity cycle [18]. Most importantly, bamboo has a unique well-connected three-dimensional (3D) microtexture that can be carbonized into a hierarchical porous carbonaceous structure, which possesses large surface area, high conductivity, good connectivity and a highly ordered structure [18]. Therefore, bamboo biochar is currently used as an odour absorbent and has also been used to fabricate electrodes for supercapacitors and LIBs [18,[23][24][25][26].…”

Corrosion Properties of AISI 4140 Industrial Steels Coated with Aniline in Different Storage Conditions

“…PANI and its derivatives have been widely studied due to the low potential for polymer formation, good environmental stability, easy to synthesis, controllable electric conductivity, simplicity in doping and dedoping, stability of the formed films, mechanical flexibility [1][2][3], and high specific capacitance [4][5][6].…”