Black liquor-derived porous carbons from rice straw for high-performance supercapacitors

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

“…It is the oldest source of energy after the sun. [112] Different biomassp recursors have been selected based on these different criteria;r ice straw, [113] wheat straw, [114] popularc atkins, [115] and pistachio [116] have been selected due to their low cost and ease of availability.I na ddition, chickene ggshells [117] ando range peel [118] are examples of precursors that were considered based on their unique hierarchicalp orous microstructures. Energyf rom sunlight is stored as chemical energy in biomass and this energy can be widely used to meet our increasing energy needs, such as heating, cooking, and transport fuel.…”

Lignin-derived heteroatom-doped porous carbons for supercapacitor and CO2 capture applications

“…51 Their values are also comparable with the capacitance from other carbon-based electrodes. 40,[52][53][54][55][56][57] To examine the interfacial characteristics and the electrochemical response of the electrodes, EIS data have been run within the frequency of 500 Hz to 0.01 kHz with 5-mV AC amplitude. Three different types of resistance could be distinguished in the Nyquist plot shown in Figure 6E.…”

Sustainable Utilization of Biomass Refinery Wastes for Accessing Activated Carbons and Supercapacitor Electrode Materials

“…The specific capacitance of Chem-900-2( Figure 1a good cycling stability of the Chem-900-2e lectrode material, with ac apacitance retention of approximately 92 %a fter 10 000 charge/discharge cyclesc onducted at 10 Ag À1 within the potential window À1a nd À0.1 Vi nathree-electrode system ( Figure 1d). [49][50][51][52][53][54][55][56][57][58][59][60][61] Apparently,t he high capacitance of Chem-900-2 carbon can be attributed to its advantageous micro-/mesoporous structure. Probably,t he slight decrease in capacitance was caused by spontaneous formation of cracks and exfoliationo ft he electrode active mass at some surface segments as ar esult of gas evolution.…”

“…Probably,t he slight decrease in capacitance was caused by spontaneous formation of cracks and exfoliationo ft he electrode active mass at some surface segments as ar esult of gas evolution. [62] The majority of carbon materials described in thel iterature [49][50][51][52][53][54][55][56][57][58][59][60][61] have microporouss tructures, whicha re responsible for the high SSA BET values. [49][50][51][52][53][54][55][56][57][58][59][60][61] Apparently,t he high capacitance of Chem-900-2 carbon can be attributed to its advantageous micro-/mesoporous structure.…”

“…All in all, the Chem-900-2 sample demonstrates an electrochemical performance close to (or higher than) the performances of typical bio-waste derived ACs studied in aqueous KOH electrolyte, [46][47][48] although the SSA of Chem-900-2i su pt oa pproximately four times lower than the SSAs of other carbon materials described in the literature. [49][50][51][52][53][54][55][56][57][58][59][60][61] Apparently,t he high capacitance of Chem-900-2 carbon can be attributed to its advantageous micro-/mesoporous structure. The specific character of porosity substantially determines the capacitance, ando nly the pores accessible to electrolyte ions can form the electrode-electrolyte double layer.…”