Mechanistic insight into collectively exhaustive CoPi-NPC nanosheets for oxygen reduction reaction and Zn-air battery

Tailoring the MOF structure via ligand optimization afforded a dandelion flower like CoS/Co–Nx/CoNi/NiS catalyst to enhance the ORR/OER in zinc–air batteries

“…S10b). The ORR performance of catalyst Co 9 S 8 /Co-N x /CoNi/Ni 3 S 2 @CNS-4 proved to be better in comparison to recent reported catalysts, in the alkaline electrolyte (Table S1) 12,45,46 . In Fig.…”

“…The ORR performance of catalyst Co 9 S 8 /Co-N x /CoNi/Ni 3 S 2 @CNS-4 proved to be better in comparison to recently reported catalysts, in the alkaline electrolyte (Table S1 †). 12,45,46 In Fig. 6b, to further investigate catalytic performance, LSV was conducted applying different rotations (400-2000 rpm) using RRDE; the limiting current densities of Co 9 S 8 /Co-N x /CoNi/Ni 3 S 2 @CNS-4 were found to be 2.02 to 7.05 mA cm -2 , respectively.…”

“…45 Thangasamy et al (2022) investigated CoPi–NPC nanosheets for the ORR in ZABs. 46 Furthermore, Sim et al (2022) demonstrated that iron–cobalt/cobalt–nickel oxide dispersed on a reduced graphene oxide electrode exhibited superior stability at a high current density and high-rate rechargeable ZABs. 12…”

“…Thangasamy et al (2022) investigated CoPi-NPC nanosheets for the ORR in ZABs 46. Furthermore, Sim et al…”

Supramolecular confinement synthesis of ultrafine iron nitride nanocrystals for the oxygen reduction reaction in Zn–air batteries

“…Constructing heteroatom-doped hollow porous carbon substrates is an effective pathway to boost the ORR reactivity on account of their promising merits for the maximum utilization of reactive sites, along with expediting mass transport. [17][18][19][20][21] Supramolecular aggregates with highly ordered morphology and interconnected intrinsic molecular-scale pores can be synthesized via a hydrogen bond driven self-assembly process and are promising precursors to afford carbon based catalysts with a controllable chemical structure. The cyanuric acid-melamine (CM) complex is a classic supramolecular complex, and the large content of nitrogen can be used as the nitrogen source for the synthesis of Fe 3 N nanocrystals.…”