Hypercrosslinked polymer-mediated fabrication of binary metal phosphide decorated spherical carbon as an efficient and durable bifunctional electrocatalyst for rechargeable Zn–air batteries

Abstract

FeP and CoP nanoparticle decorated spherical carbon FeCoP/NPC was used as a highly efficient ORR/OER bifunctional electrocatalyst for rechargeable aqueous and solid Zn–air batteries.

Low-temperature pyrolysis enables FeNi3 nanoparticle implanted N-doped carbon nanosheets as an efficient bifunctional electrocatalyst for overall water splitting

“…2b), the two peaks at 707.29 and 720.60 eV are assigned to 2p 3/2 and 2p 1/2 of Fe 0 , while the peaks centered at 709.45/722.68 eV and 711.25/724.74 eV belong to Fe 2+ and Fe 3+ , respectively. 52,53 Similarly, the high-resolution Ni 2p can be deconvoluted into Ni 0 (852.81 and 869.72 eV), Ni 2+ (854.36 and 872.60 eV), Ni 3+ (856.03 and 874.15 eV) and satellite peaks (861.4 eV and 879.42 eV) (Fig. 2c).…”

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

“…162 While forming Fe-based compounds, appropriate phosphating can modify the carbon configuration, enhance the electron-donating property, and increase the electro-oxidation resistance of carbon electrodes. 163 Zhang et al 164 used paulownia wood carbon sheets as a carbon source and coupled iron-based metal phosphides to improve proton generation efficiency (Fig. 10(d), FeP-NWCC).…”

N,S-Codoped Carbon Nanostructures Encapsulated with FeNi Nanoparticles as a Bifunctional Electrocatalyst for Rechargeable Zn–Air Batteries

“…Transition metal and nitrogen-containing carbon materials (M–N–C) are considered the most appealing ORR/OER bifunctional electrocatalysts due to their competitive catalytic activity and cost saving characteristics. − The introduction of N into M–N–C facilitates the dispersion of the metal and increases the active sites, thereby boosting the catalytic activity. The carbon matrix as a carrier for metals in M–N–C can effectively prevent corrosion of metal nanoparticles during synthesis and catalysis procedures, thus improving the stability of the catalyst. − Compared with the single-transition metal-embedded nitrogen-coped carbon materials, the bimetallic alloy nanoparticle (NP)-encapsulated nitrogen-doped carbon materials exhibit superior bifunctional activity. , The synergistic effect of the alloyed metal NPs can redistribute the internal charge and decrease the absorption energy barriers of the oxygen intermediates, thus leading to improved ORR/OER activity .…”