A sulfonated cobalt phthalocyanine/carbon nanotube hybrid as a bifunctional oxygen electrocatalyst

Abstract

With the sulfur modified CoN4 sites and the conductive CNT, the CoPc-SO3H/CNT hybrid exhibits ORR/OER bifunctional activity.

Novel porous iron phthalocyanine based metal–organic framework electrochemical sensor for sensitive vanillin detection

“…[32][33][34] Owing to their unique structures and various functional properties, including excellent semiconductor properties and catalytic activities, MPc derivatives have been widely used in various elds including catalysis, sensors, and photodynamic therapy. [35][36][37][38][39][40][41][42] Due to its redox activity, catalytic activity, and carrier transport ability result from the extended p-system, MPc complexes have been used as the linking units in 2D MOFs, which show good stability, conductivity, redox activity, and electrocatalytic activity. [43][44][45] Here, we developed a novel electrochemical sensor based on an iron phthalocyanine (FePc) MOF for the sensitive detection of vanillin.…”

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

“…On the other hand, the sufficient exposure of active sites with effective transport of ORR-relevant species is the crucial factors for the superior electrocatalytic performance. The structural architecture regulation of catalysts can endow the marvelous peculiarities, which are favorable for realizing activity enhancement [123,124], and several specific morphological struc-ture are pursued, such as carbon nanotube structure [125], carbon nanofiber structure [126] and sphere structure [127]. Various strategies are used to improve the ORR electrocatalytic performance in terms of boosted intrinsic activity and well-designed micromorphology of catalysts.…”

Bimetal Phthalocyanine‐Modified Carbon Nanotube‐Based Bifunctional Catalysts for Zinc‐Air Batteries

“…Recently, cobalt phthalocyanine derived CDC/CNT catalyst was reported indicating that the decrease in the CDC/CNT ratio increased the ORR performance with the best catalyst exhibiting E onset of 0.91 V. [37] Niu and co-workers have prepared N, P, S codoped carbon nanosheets decorated with NiCoP nanoparticles as bifunctional catalyst (NiCoP/NSP-HPCNS), reporting the E 1/2 value of 0.84 V in 0.1 M KOH due to the highly active sites in hierarchical porous structure. [66] In a recent study, in situ coupling strategy was employed for the preparation of heteroatom-doped and transition metal (Fe, Co) containing carbon materials utilising MPcs into the conjugated microporous polymer resulting E 1/2 of 0.83 V. [46] Li et al reported a CoPc-SO 3 H/CNT catalyst exhibiting half-wave potential of 0.78 V. [67] In all three works, [46,66,67] it is clear that the porosity and transition metal and heteroatom active sites are necessary for the adsorption and reduction of O 2 . However, one should bear in mind that the preparation process of the corresponding catalysts in those studies is time consuming and quite complex, whereas here we were able to synthesise micro-mesoporous bimetallic N-doped CNT catalysts by simple one-step pyrolysis, showing a similar ORR performance.…”