Application of 1D/2D carbon material supported metal nanoclusters for electrochemical conversion

Abstract

Metal nanoclusters (MNCs) are important in electrocatalysis, characterized by high atom utilization, unique geometrical and electronic structures, and abundant active sites. Unfortunately, nanoscale MNCs tend to aggregate, affecting their catalytic...

Cu Single Atoms Embedded in N-Doped Hollow Carbon Spheres for Simultaneous Electrochemical Detection of Hydroquinone and Catechol

“…26,27 Cu SAs are confined to N-CSs, which not only retain the advantages of high atom utilization, unique electronic structure, and abundant active sites, but also solve the shortcoming of easy aggregation of Cu SAs when combined with carbon material substrate. 28 The experimental and theoretical results show that the excellent sensing performance is attributed to the synergistic effect of a Cu SA and N-CSs, especially a Cu SA. The cyclic voltammetry (CV) and differential pulse voltammetry (DPV) are used to evaluate the electrocatalytic behavior of Cu SAs/N-CSs on HQ and CC.…”

“…In this work, a highly selective electrochemical sensor based on N-doped hollow carbon spheres loaded with Cu single atoms (Cu SAs/N-CSs) is fabricated to detect HQ and CC simultaneously. The catalyst is prepared by in situ polymerization of dopamine (DA) and tetraethoxysilane (TEOS) precursors (SiO 2 @Cu 2+ -Pdop spheres), combined with carbonization and acid etching. , Cu SAs are confined to N-CSs, which not only retain the advantages of high atom utilization, unique electronic structure, and abundant active sites, but also solve the shortcoming of easy aggregation of Cu SAs when combined with carbon material substrate . The experimental and theoretical results show that the excellent sensing performance is attributed to the synergistic effect of a Cu SA and N-CSs, especially a Cu SA.…”