Pyrolysis derived helically nitrogen-doped carbon nanotubes with uniform cobalt for high performance oxygen reduction

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

“…[1][2][3][4][5][6] Since the first report on cobalt phthalocyanine as a highly active catalyst for ORR in 1964 by Jasinski, a large number of studies have been made to construct highly efficient M-N-C catalysts, and significant progress has been achieved. [7][8][9][10][11][12][13][14][15][16][17][18][19][20] A major breakthrough, achieved by Yeager and co-workers, reveals that these costly macrocycles can be substituted by individual precursors of metal and nitrogen. [21] Afterward, the uses of independent carbon, metal, and nitrogen sources have created great opportunities to construct M-N-C with controllable composition and structure.…”

Exploring the structural dependence of metal-free carbon electrocatalysts on zinc-based metal–organic framework types

“…have been employed as activators in the pyrolysis of various precursors to prepare carbon-based catalysts. [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51] They completely decompose into corrosive gases (ammonium, isocyanic acid, etc.) during pyrolysis, 52 which offers the opportunity to tailor the structure and morphology/porous structure of the derived carbon catalysts.…”

“…In this context, many MOF-derived carbon-based catalysts with unique morphology and high ORR activity were prepared with the assistance of a sacrificial activator. [45][46][47][48][49][50][51] Nevertheless, how the MOF type influences the structure and further the ORR activity of derived metal-free carbon catalysts is still elusive.…”

Enhanced electrocatalytic performance of N-doped carbon xerogels obtained through dual nitrogen doping for the oxygen reduction reaction

“…6,7 Carbon-based catalysts mainly refer to heteroatom-doped carbon-based electrocatalytic materials such as nitrogen-doped carbon nanotubes, graphene and graphitic arrays usually exhibits a high electrocatalytic activity, extraordinary stability and superior methanol tolerance. 8–11 Among these different N-doped carbon based catalysts suggested as alternatives to Pt/C catalyst, N-doped carbon xerogel (NCX) continues to attract a lot of attention due to its controllable structure, tunable surface properties, economical efficiency and easily scaled-up preparation. 12,13 Moreover, both the amount and type of doped nitrogen have significantly effects on the surface states of NCX material and the reduction behavior of oxygen on its surface.…”