A facile approach for the synthesis of monolithic hierarchical porous carbons – high performance materials for amine based CO2 capture and supercapacitor electrode

A combined salt–hard templating approach for synthesis of multi-modal porous carbons used for probing the simultaneous effects of porosity and electrode engineering on EDLC performance

“…Hierarchically porous carbons comprised of interconnected macropores (>50 nm), http://dx.doi.org/10.1016/j.carbon.2015.01.039 0008-6223/Ó 2015 Elsevier Ltd. All rights reserved. mesopores (2-50 nm) and micropores (<2 nm), have appeared as promising candidates for electrode materials for supercapacitors [5][6][7][8][9][19][20][21][22][23]. In general, the micropores provide sites for electrosorption, whereas the mesopores and macropores act as electrolyte reservoirs as well as provide pathways for electrolyte transport [9,24].…”

“…Multi-modal porous carbons have been gaining recently a lot of attention as high performance materials for supercapacitors and other fields including batteries, water purification, CO 2 capture, sensors, fuel cells, and hydrogen storage [5,19,20,[29][30][31][32][33][34][35][36][37][38]. A significant effort has been devoted towards developing efficient synthesis approaches for producing hierarchically porous carbons [5,20,29,30,[39][40][41][42][43].…”

“…Recently, there has been considerable attention devoted towards understanding and tailoring the material properties [1][2][3][4][5][6][7][8][9][10] and electrode processing conditions [11][12][13][14][15][16][17][18] to enhance the performance of porous carbons used as electrode materials for supercapacitors. Among the various carbon material properties, the pore size distribution has been shown to play a very significant role [1][2][3][4][6][7][8][9][10].…”

“…A significant effort has been devoted towards developing efficient synthesis approaches for producing hierarchically porous carbons [5,20,29,30,[39][40][41][42][43]. The most commonly used methods for producing multi-modal porous carbons usually involve two steps: (1) synthesis of a mesopore/macropore dominated carbon (through either hard [44] or soft templating or sol-gel) and (2) introduction of microporosity through a second step of activation (either physical or chemical activation) [5,19,20,[45][46][47][48][49]. Although, such techniques can ensure a tight control on porosity at different levels, they often add complexity and make the synthesis highly energy intensive.…”

Hierarchical porous carbon templated with silica spheres of a diameter of 14 nm from pure chitosan or a chitosan/ZnCl2 solution

“…the carbon prepared from resorcinol and formaldehyde precursors and Ludox, was impregnated with polyethyleneimine [16]. It is also important to mention here that the carbon obtained from glucose and Ludox, was impregnated after the synthesis of aminophenol [17]. These ice-templated and hard-templated materials which have shown an area of up to 2096 m 2 /g and a pore volume of 11 cc/g were tested for both CO 2 adsorption and in supercapacitors.…”