ArticleRSC advances2026
Immobilization of transition metal (Ni, Cu, and Co)-based colloidal nanoscale materials for the oxygen evolution reaction.
Article in RSC advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
10 authors.
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Abstract
The rational design of high-performance electrocatalysts for the oxygen evolution reaction (OER) is the holy grail for clean energy conversion and storage, aimed at mitigating the ever-growing energy demands. However, the inherent sluggish kinetics of the OER remain the primary bottleneck, consequently impeding overall water splitting for efficient hydrogen production. In this regard, ultrasmall metal nanoclusters (NCs, size ≤ 3 nm) or nanoscale materials with tunable physicochemical properties have recently emerged, offering unparalleled opportunities for manipulating the catalytic efficiency and electronic structure at the atomic level. Herein, we report a rational design of transition metal (Ni, Cu, and Co)-based colloidal nanoscale materials immobilized on an N-doped carbon (NC) support for the OER. The structure, size, and electronic properties were investigated using UV-vis, photoluminescence (PL), Fourier transform infrared (FTIR), and energy-dispersive X-ray (EDX) spectroscopies, high-resolution transmission electron microscopy (HR-TEM), and X-ray photoelectron spectroscopy (XPS). Electrochemical measurements demonstrated encouraging OER performance, where NiNCs@NC, CoNCs@NC, and CuNCs@NC achieved a current density of 10 mA cm
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