Porous carbons embedded with nitrogen-coordinated cobalt as an exceptional electrochemical catalyst for high-performance Zn–air batteries

Abstract

<p>The development of non-noble, efficient, and durable catalysts to replace expensive Pt-based catalysts for boosting oxygen reduction reaction (ORR) is always an imperative and challenging topic. Herein, a triazine-linked covalent...</p>

Emerging covalent triazine framework-based nanomaterials for electrochemical energy storage and conversion

“…Lu et al fabricated Co–CTF with a well-defined Co–N 4 center via ionothermal polymerization. 175 Co-CTF was directly pyrolyzed to form Co/N-anchored porous carbons, which exhibited a large SSA (874–987 m 2 g −1 ) and uniform dispersion of the Co species. These Co/N-PCs showed good ORR activity with a positive E onset of 0.91 V and E 1/2 of 0.83 V in 0.1 M KOH.…”

Nanostructured Aluminum Oxyhydroxide—A Prospective Support for Functional Porphyrin-Based Materials

“…The development of porphyrin-based functional materials originates from the aim to utilize the outstanding physicochemical properties of these macrocyclic compounds in a convenient form. Notably, the majority of porphyrin-based functional materials belong to the family of covalent (COF) and metal-organic (MOF) frameworks [31][32][33][34]. However, the development of COFs and MOFs imposes some notable restrictions on the structure of the molecules and their functional groups.…”

Iron and Nickel Phthalocyanine‐Modified Nanocarbon Materials as Cathode Catalysts for Anion‐Exchange Membrane Fuel Cells and Zinc‐Air Batteries**

“…For the ORR/OER catalysts, an optimal pore structure is also essential. Frequently, a hierarchical micro‐mesoporous structure with high surface area is suggested to be beneficial, where mesopores aid in the transportation of reactants and product gases to the highly microporous interface where the active sites are present [22,39–41] …”

“…Frequently, a hierarchical micro-mesoporous structure with high surface area is suggested to be beneficial, where mesopores aid in the transportation of reactants and product gases to the highly microporous interface where the active sites are present. [22,[39][40][41] In previous work we have studied oxygen electrocatalysis on different bimetal and nitrogen-doped multi-walled carbon nanotubes (MWCNTs) using metal phthalocyanines (MPc) as precursors and the catalyst materials were tested in AEMFC and RZAB. [42,43] The combination of iron phthalocyanine (FePc) and nickel phthalocyanine (NiPc) based catalysts showed the highest bifunctional activity for ORR/OER among the different metal phthalocyanines.…”