Two-Dimensional MoS Nanosheets Derived from Cathodic Exfoliation for Lithium Storage Applications.

The preparation of 2H-phase MoS thin nanosheets by electrochemical delamination remains a challenge, despite numerous efforts in this direction. In this work, by choosing appropriate intercalating cations for cathodic delamination, the insertion process was facilitated, leading to a higher degree of exfoliation while maintaining the original 2H-phase of the starting bulk MoS material. Specifically, trimethylalkylammonium cations were tested as electrolytes, outperforming their bulkier tetraalkylammonium counterparts, which have been the focus of past studies.

Synthesis of microporous polymers with exposed C surfaces by polyesterification of fullerenol.

Microporous polymers with exposed C surfaces have been synthesized by a new pathway of crosslinking fullerenol and terephthaloyl chloride or 1,3,5-benzenetricarbonyl trichloride esterification. The resulting polymers are insoluble solids containing a large ratio of C with hydroxy groups and possess micropores with high specific surface area up to 657 m g. The microporous polymers thus obtained exhibit enhanced hydrogen spillover, which is a unique property of the C surface.

APTES-Based Silica Nanoparticles as a Potential Modifier for the Selective Sequestration of CO Gas Molecules.

In this work, we have described the characterization of hybrid silica nanoparticles of 50 nm size, showing outstanding size homogeneity, a large surface area, and remarkable CO sorption/desorption capabilities. A wide battery of techniques was conducted ranging from spectroscopies such as: UV-Vis and IR, to microscopies (SEM, AFM) and CO sorption/desorption isotherms, thus with the purpose of the full characterization of the material. The bare SiO (50 nm) nanoparticles modified with 3-aminopropyl (triethoxysilane), APTES@SiO (50 nm), show a remarkable CO sequestration enhancement compared to the pristine material (0.

A direct route to activated two-dimensional cobalt oxide nanosheets for electrochemical energy storage, catalytic and environmental applications.

Two-dimensional CoO nanosheets have emerged as attractive materials for use in a number of relevant technological applications. To exhibit a competitive performance in such uses, however, their structure needs to be activated, which is frequently accomplished via post-synthesis reduction strategies that introduce oxygen vacancies and increase the number of active Co(II) sites. Here, we investigate a direct route for the synthesis of activated CoO nanosheets that avoids reduction post-treatments, yielding materials with a high potential towards energy- and environment-related applications.