Wu Bing, Kovalska Evgeniya, Luxa Jan, Marvan Petr, Cintl Štěpán, Sofer Zdenek
Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 16628, Prague 6, Czech Republic.
Chemistry. 2020 Jun 26;26(36):8162-8169. doi: 10.1002/chem.202001144. Epub 2020 Jun 8.
Few-layered black phosphorus (BP) is a two-dimensional material that has attracted intensive attention for applications in energy storage and catalysis due to its large surface area and good electrical and thermal conductivity. Herein, a comparable study of BP electrochemical exfoliation in various solutions of tetrabutylammonium salts (TBAX; X is PF , BF , and ClO ) in DMSO is reported. Based on morphological and structural analyses, it is shown that TBAPF /DMSO medium was specifically appropriate for the production of high-quality BP nanosheets with micrometer lateral size and a thickness of about 2.4 nm. TBAPF /DMSO-processed, few-layered BP exhibits enhanced hydrogen evolution reaction (HER) catalytic activity compared with that of samples exfoliated with the assistance of BF and ClO ions. Finally, the fabrication of flexible, free-standing BP films and their performance in an all-solid-state supercapacitor device are demonstrated.
