Electrochemical Performance Evaluation of Bimetallic Sulfide Nanocomposite with Fullerene (CeNdS/C₆₀) for Efficient Oxygen Evolution Reaction (OER)

Abstract

In recent decades, developing cost-stable electrocatalysts for oxygen evolution reactions at low overpotential has still been challenging for chemical energy conversion devices. In the present work, we have reported the facile development of the CeNdS/C 60 nanocomposite via the solution method. The covered C 60 over CeNdS is confirmed by TEM and STEM, providing strong interfacial interaction between CeNdS and C 60 . In a medium consisting of 1.00 M KOH, CeNdS/C 60 electrode displayed a very small overpotential of 346 mV and a small Tafel slope of 68 mV dec −1 at a benchmark current density. Chronoamperometric and continuous CV sweeps confirmed the good stability of this catalyst at a scan rate of 5 mV s −1 (5000 cycles). The turnover frequency of CeNdS/C 60 was 1.7 s −1 , and the corresponding electrochemically active surface area was 3057.5 cm 2 . Brunauer−Emmett−Teller (BET) surface area results also confirmed the attachment of C 60 particles with CeNdS by developing a high surface area with porous channels that further facilitate electrolyte penetration and the charge transfer rate, thus improving the OER property of CeNdS/C 60 . All performed techniques showed that the presence of Nd and C 60 ions in the CeNdS/C 60 catalyst is responsible for growing the superb intrinsic OER catalytic activity. Furthermore, these findings have revealed an excellent potential for CeS-based electrocatalysts for more electrochemical energyconversion applications.

Tungsten doped FeCoP2 nanoparticles embedded into carbon for highly efficient oxygen evolution reaction

“…S2 † ). 45 And the obtained results of the surface area, macro-/mesopore volume were tabulated in Table S1. † The surface area of pristine FeCoP 2 /C was 22.81 m 2 g −1 with macro-/mesopore volume at 0.0095/0.074 cm 3 g −1 .…”

C60 and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

“…synthesized a CeNdS/C 60 nanocomposite using a solution‐based technique, Figure 11 a. [ 152 ] This synthesis method resulted in the formation of robust interfacial contacts between C 60 and CeNdS. XRD analysis (Figure 11b), confirmed the successful integration of C 60 with CeNdS.…”

“…j) Comparative overpotential. Reproduced with permission [152]. Copyright 2023, American Chemical Society.…”

Fullerene-derived nanocomposite as an efficient electrocatalyst for overall water splitting and Zn–air battery

“…[92][93][94] Iqbal et al prepared CeNdS/C 60 composite materials on foam nickel substrates by a simple and easy co-precipitation method. 95 The synergistic effect of C 60 and CeNdS improved the electronic structure and energy barrier of the product, and increased the active catalytic site. In 1 M KOH, the catalyst showed an overpotential of 346 mV (vs. RHE) at 10 mA cm À2 current density, with a Tafel slope of 68 mV dec À1 (Fig.…”