Few-Layer Antimonene Nanosheet: A Metal-Free Bifunctional Electrocatalyst for Effective Water Splitting

Abstract

Two-dimensional (2D) material with thickness down to the atomic state is regarded as able to expose more active sites and achieve much higher catalytic efficiency than its bulk counterpart. Recent investigated semi-metallic antimony (Sb) demonstrates high charge carrier density and environmental stability toward prospective electrocatalytic performance. In this work, we adopt a favorable liquid exfoliation approach to produce few-layer antimonene and implement it as a metal-free electrocatalyst for water splitting. Few-layer antimonene nanosheets have been realized with preferable bifunctional electrocatalytic activity in association with structural robustness; meanwhile, the catalytic performance and charge transfer behavior of an integrated three-electrode system have also been uncovered. In addition to bifunctional catalytic ability, few-layer antimonene shows a low catalytic threshold because of the inherent characteristics derived from semi-metallic layered materials. It is further anticipated that the present work contributes to extendable investigations about the catalytic performance of antimonene nanosheets and related electrocatalytic devices.

Coupled Copper–Zinc Catalysts for Electrochemical Reduction of Carbon Dioxide

“…[2,3] Finally, the electrolyzer and electrolysis process for CO 2 conversion can be developed based on the already existing technologies such as water electrolyzers, polymer electrolyte membrane fuel cells, solid oxide fuel cells, and so on. [4,5] However, compared with other electrochemical reduction reactions such as the hydrogen evolution reaction (HER) [6] and the oxygen reduction reaction (ORR), [7] the CO 2 reduction reaction (CO 2 RR) faces many more complications. One of the biggest challenges is the selectivity for a specific product.…”

Antimonene Quantum Dots as an Emerging Fluorescent Nanoprobe for the pH‐Mediated Dual‐Channel Detection of Tetracyclines

“…350732). [ 16 ] In comparison, except for a peak corresponding to (012) plane at 28.4°, all other signal peals for AMQDs almost completely disappeared, indicating that AMQDs have been successfully prepared. The Raman spectra of AMQDs were also measured (Figure 1e).…”

Xenes as an Emerging 2D Monoelemental Family: Fundamental Electrochemistry and Energy Applications

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