Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde

Fast microwave-assisted synthesis of tailored mesoporous carbon xerogels

“…However, the main drawback to an extensive use of carbon gels is the synthesis method since it is too long and produces more expensive and less competitive materials than other methods currently in use. Therefore, microwave radiation would seem to be a perfectly viable alternative as it would produce carbon gels more quickly and with similar characteristics to those synthesized by conventional methods [12,21].…”

Electrochemical properties of carbon aerogels derived from resorcinol‐formaldehyde‐aniline for supercapacitors

“…Figure 1 shows SEM micrographs of prepared carbon aerogels A 2 RF, A 4 RF and RF. It can be seen that the produced A 2 RF particles were all fine round spheres, look‐alike the nitrogen‐doped carbon gels particles synthesized by microwave‐assisted polymerisation (Kang et al , 2008), but A 4 RF particles were not uniform. Excessive aniline resulted in an agglomeration of carbon aerogels particles, which would affect the electrochemical properties.…”

Nitrogen-enriched carbon with extremely high mesoporosity and tunable mesopore size for high-performance supercapacitors

“…Nowadays, nitrogen-enriched nanocarbon (NC) has been widely investigated for electrode materials of energy storage devices such as lithium-ion batteries [1][2][3], fuel cells [4,5] and especially supercapacitors [6][7][8][9][10][11][12][13][14][15][16] by virtue of their stable physicalchemistry property, porous structure, large surface area and tunable nitrogen functional groups (NFGs), which can provide pseudocapacitance [11][12][13] and enhance the wettability of the electromaterials [13][14][15][16]. The key to their success in applications strongly depends on the ability to design well-controllable nanostructure.…”

“…Generally, postprocess [11,12,[16][17][18], for example, ammonia heat treatment and melamine immersion, is the most frequently used technique to introduce nitrogen, giving rise to a tedious process, pore structure collapse and unstable NFGs upon long-term/hardness working condition [12,16,[19][20][21]. Moreover, the subsequently introduced NFGs may block pores and thereby reduce the ion-accessible surface area [18].…”