Solvent-free synthesis of N-doped nanoporous carbon materials as durable high-performance pH-universal ORR catalysts

Insights into efficient transition metal-nitrogen/carbon oxygen reduction electrocatalysts

“…In fact, there are numerous publications and even reviews on metal-free nitrogen-doped carbon-based catalysts for ORR, which can also prove the effectiveness of active nitrogen species in MÀN/C catalysts [74][75][76][77][78]. In these works, pyridinic nitrogen species, pyridinic-type nitrogen species, pyrrolic nitrogen species and graphitic nitrogen species are considered as effective active sites [79][80][81][82][83].…”

Nanoporous Carbon Materials toward Phenolic Compounds Adsorption

“…Carbon is one of the most abundant elements on the Earth and plays a critical role in the bio-and ecosystems. Carbon has the unique capability of forming a variety of interesting materials exhibiting extraordinarily different physical and chemical properties [20,22,27]. Fullerene [33], carbonnanotubes [33], graphite [15,34], and diamond [35] are examples.…”

“…Carbon-based nanomaterials such as fullerenes, carbon nanotubes (CNTs), graphene and its derivative compounds, nanodiamonds, and nanoporous carbons (NPC) such as activated carbon are the most popular nano adsorbent materials used for purification of water between scientists due to their harmless natural to the environment, abundance, simplicity of handling, and size and form that give them different properties [15][16][17][18][19]. In this chapter, nanoporous carbons (NPC) is considered one of the most effective and economical adsorbents used in the separation of organic and inorganic contaminants from the aquatic environment due to their various properties such as high surface area and high porosity, in addition to they are inexpensive, abundance, generate from renewable sources, very thermally stable, and their perfect chemical resistance [20][21][22]. Furthermore, NPC can attract attention to used in many purposes due to its rule in decreasing the amount wastes in the environment through using them in Their preparation process.…”

Amino-1H-tetrazole-regulated high-density nitrogen-doped hollow carbon nanospheres for long-life Zn–air batteries

“…[1][2][3][4] Over the past decades, heteroatom-doped carbons, particularly N-doped porous carbons, have formed the subject of intensive research. [5][6][7][8] Nitrogen-doped carbons, particularly graphitic (Gr) and pyridinic (Pr) N signicantly improve ORR activity by enhancing the positivity of carbon atoms adjacent to Gr N and Pr N. [9][10][11] Consequently, the synthesis of high-density Gr N-and Pr N-doped carbon catalysts and elucidating their role as ORR catalysis has become a hot research topic.…”