Year: 2025
Type: article
Abstract: This study introduces a straightforward technique for edge engineering in MoS 2 flakes through chemically induced nano‐folding. By utilizing a buffered oxide etchant solution, precise detachment is achieved from the substrate and controlled folding/rolling of MoS 2 flakes, resulting in the creation of additional active edges up to 100 times thicker than the original flake. The model material, MoS 2 grown on silicon substrates via chemical vapor deposition, undergoes a dramatic transformation in morphology. This transformation is driven by partial detachment from the substrate, followed by bending and folding of the flake boundaries, which generates well‐defined additional edges. The impact of edge thickening is demonstrated on fundamental characteristics such as work function, crystallinity, and catalytic properties. Notably, the findings demonstrate that the engineered edges significantly enhance the electrocatalytic activity of MoS 2 in hydrogen evolution reactions. This highlights the potential of this method to substantially improve the performance of low‐dimensional materials.
Source: Small Structures
Authors: Edoardo Chini, Fiorenza Esposito, Vasiliki Benekou, Mohsin Muhyuddin, Eugenio Lunedei, Giampiero Ruani, Rita Rizzoli, Gabriele Calabrese, Fabiola Liscio, Franco Corticelli, Luca Seravalli, Pasquale D’Angelo, Vincenzo Palermo, Carlo Santoro, Andrea Candini, Denis Gentili, Massimiliano Cavallini
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,110
Award: G972786147
OpenAlex ID: W4410411317