Sb@C yolk-shell spheres with tunable interior space have been obtained a facile thermal annealing strategy and used as anodes for sodium-ion batteries. The proportion of interior space in the yolk-shell structure has a significant influence on the electrochemical performance of the electrode material.
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http://dx.doi.org/10.1039/c8ra07567k | DOI Listing |
J Am Chem Soc
January 2025
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, China.
Oxygen vacancies (OVs) spatially confined on the surface of metal oxide semiconductors are advantageous for photocatalysis, in particular, for O-involved redox reactions. However, the thermal annealing process used to generate surface OVs often results in undesired bulk OVs within the metal oxides. Herein, a high pressure-assisted thermal annealing strategy has been developed for selectively confining desirable amounts of OVs on the surface of metal oxides, such as tungsten oxide (WO).
View Article and Find Full Text PDFErbium-implanted silicon (Er:Si) holds promise for quantum networking, but the formation of multiple Er centers poses a challenge. We show that the cubic center (Er-C) has C or lower symmetry and propose all Er centers range between full Si- and full O-coordination. By co-implanting Si with Er and O (both 10cm) and increasing the thermal anneal quenching rate from ∼100 °C/s to ∼1000 °C/s, we shifted the dominant optically active center from ErO clusters to the Er-C center with mixed Si and O coordination.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States.
Terminal metal-phosphorus (M-P) complexes are of significant contemporary interest as potential platforms for P-atom transfer (PAT) chemistry. Decarbonylation of metal-phosphaethynolate (M-PCO) complexes has emerged as a general synthetic approach to terminal M-P complexes. M-P complexes that are stabilized by strong M-P multiple bonds are kinetically persistent and isolable.
View Article and Find Full Text PDFNanoscale
January 2025
Department of Materials Science and Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu 804-8550, Japan.
Self-organization realizes various nanostructures to control material properties such as superconducting vortex pinning and thermal conductivity. However, the self-organization of nucleation and growth is constrained by the growth geometric symmetry. To realize highly controlled three-dimensional nanostructures by self-organization, nanostructure formation that breaks the growth geometric symmetry thermodynamically and kinetically, such as tilted or in-plane aligned nanostructures, is a challenging issue.
View Article and Find Full Text PDFSmall Methods
January 2025
Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, 04107, Republic of Korea.
A crucial step in fabricating full-color organic light-emitting diode (OLED) displays is patterning the emissive layer (EML). Traditional methods utilize thermal evaporation through metal masks. However, this limits the achievable resolution required for emerging microdisplay technologies.
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