Physical, electrochemical and supercapacitive properties of activated carbon pellets from pre-carbonized rubber wood sawdust by CO2 activation

On the (Pseudo) Capacitive Performance of Jack Fruit Seed Carbon

“…At 40 mVs -1 rate, the delivered capacity in 1M H 2 SO 4 and 1M Na 2 SO 4 is 252 and 137Fg -1 respectively, which means that JFSC has retained 80% and 68 % of the respective capacitance at 10mVs -1 rate in the electrolyte order mentioned. This value is comparable with the other biomass derived carbon electrodes reported [36,69,84]. Thus, jack fruit seeds being a zero-cost source and cost-effective nature might put JFSC as a prospective candidate for electrode material in electrochemical capacitors or pseudocapacitors.…”

A New Approach towards Improving the Specific Energy and Specific Power of a Carbon-Based Supercapacitor using Platinum-Nanoparticles on Etched Stainless Steel Current Collector

“…[30][31][32] ACMs were prepared from OPEFB according to the procedure mentioned in our previous work. 20,29 The preparation began with the pre-carbonization of fibres of OPEFB at a low carbonization temperature (280°C), followed by a ball milling for 36 h and finally sieving to obtain a powder of selfadhesive carbon grains (SACGs) having a particle size of less than 106 µm. The SACGs were converted into green monoliths (GMs) using a mold (20 mm in diameter) and 250 kg cm ¹2 of compressive force before they were carbonized at 800°C under N 2 atmosphere with a heating profile used in our previous study to produce carbon monoliths (CMs).…”

“…29 In the present study, an approach to reduce the ESR values of a supercapacitor cell is carried out by modifying the surface of the SS current collector (316L), viz by growing platinum nanoparticles (PtNs) on its etched surface and then getting this modified surface in contact with the monolithic form of carbon electrodes which was prepared from pre-carbonized fibres of oil palm empty fruit bunches (OPEFB). [20][21][22][23]29 The role of etching prior to PtNs deposition on the current collector surface was found to be very significant in enhancing the power and energy of the supercapacitor cells.…”

“…Higher potential can be controlled by modifying the electrolyte properties, 12,13 while a lower ESR value can be achieved by reducing the internal resistance of the electrode and the contact resistance between the electrodes and the current collectors. 9 It has been observed that supercapacitors with low ESR values can be fabricated by modifying aluminium current collectors with carbon material via sol-gel and coating, 11 modifying aluminium current [15][16][17][18][19][20][21][22][23][24][25][26] Studies on the modification of separators have also been reported elsewhere. 27,28 Recently, the low ESR value has been achieved by modifying the SS current collector by the deposition of platinum nanoparticles, wherein the modified current collector was tested in supercapacitor cell fabricated with activated carbon monolith (ACM) electrode derived from rubber wood saw dust.…”

Preparations and Characterizations of Hierarchical Macropore Activated Carbon Monolith Electrode from Rubber Wood for Supercapacitor Application

“…Several reports have been revealed the energy and power generated by a carbon electrode from biomass materials [4]. Biomass materials that has been used as a precursor for carbon electrode for supercapacitor application such as rubber wood sawdust [5], peanut shells [6], and emptyfruit bunches [7], poplar wood [8] and paulownia flower [9].…”