The metallic sodium (Na) is characterized by high theoretical specific capacity, low electrode potential and abundant resources, and its advantages manifests itself as a promising candidate anode of sodium metal batteries (SMBs). However, the vaporization during the plating/stripping or uncontrolled growth of sodium dendrites in sodium metal anodes (SMAs) has posed major challenges to its practical applications. To address this issue, here, the SnO /Ti C T composite is rationally fabricated, in which sodiophilic SnO nanoparticles are in situ dispersed on the 2D Ti C T , providing the acceptor sites of Na that can control vaporization and dendrites. The SnO /Ti C T composite anode exhibits smooth and homogeneous morphology after Na-metal deposition cycles, stable Coulombic efficiency (CE) of half cells, long stable cycles of symmetric cells due to highly sodiophilic sites, and confinement effect. In addition, the full cells assembled with Na MnO also show excellent rate performance and cycling performance. These discoveries demonstrate the effectiveness of the acceptor sites and the confinement effect provided by the SnO /Ti C T composite, and thus provide an additional degree of freedom for designing SMBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/smll.202208277 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Establishing electro-functionalized gravity-driven ceramic membrane filtration (EGDCM) for decentralized treatment of algae-laden brackish water: Comparison of in-situ electro-oxidation and ex-situ electro-coagulation.
Water Res
December 2024
State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
Algae-laden brackish water (ABW) has remarkably threatened drinking water safety in warm coastal areas. Although gravity-driven ceramic membrane filtration (GDCM) exhibits high potential in ABW treatment during decentralized water supply, membrane fouling is still a critical problem. Herein, GDCM was skillfully electro-functionalized (EGDCM) by in-situ electro-oxidation (ISEO) based on self-fabricated Ti/SnO-Sb dimensionally stable anode (DSA) (EO-EGDCM) and ex-situ electro-coagulation (ESEC) based on iron anode (EC-EGDCM) in this study.
View Article and Find Full Text PDFRole of the Sn-TiO/Ti-SnO Heterojunction in Enhancing the Photocatalytic Oxidation of Arsenite (As) through the Promotion of Charge Carrier Lifetime.
ACS Appl Mater Interfaces
December 2024
Department of Earth Science & Engineering, Imperial College London, London SW7 2AZ, U.K.
This study proposes the heterojunction photocatalyst, Sn-doped TiO/Ti-doped SnO (herein named SnTiO), as a promising alternative to pure TiO. SnTiO demonstrates improved light harvesting efficiency over TiO by generating longer-lived electron-hole (e-h) pairs, while also displaying a smaller band gap compared to pure TiO. Consequently, we show that it is a promising candidate for the photocatalytic oxidation (PCO) of As to the less toxic and more readily removable form As.
View Article and Find Full Text PDFHigh-Performance Ammonia QCM Sensor Based on SnO Quantum Dots/TiCT MXene Composites at Room Temperature.
Nanomaterials (Basel)
November 2024
Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Ammonia (NH) gas is prevalent in industrial production as a health hazardous gas. Consequently, it is essential to develop a straightforward, reliable, and stable NH sensor capable of operating at room temperature. This paper presents an innovative approach to modifying SnO colloidal quantum dots (CQDs) on the surface of TiCT MXene to form a heterojunction, which introduces a significant number of adsorption sites and enhances the response of the sensor.
View Article and Find Full Text PDFNew Ti/CNT/CNT-Ce-PbO anode synergy peroxymonosulfate activation for efficiently electrocatalytic degradation of p-aminobenzoic acid.
Environ Res
January 2025
Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Siping, 136000, China; College of Engineering, Jilin Normal University, Haifeng Street, Tiexi Dist, Siping, 136000, China. Electronic address:
Increased levels of p-aminobenzoic acid in aquatic environments, primarily utilized as UV filter in sunscreens, poses a serious threat to human and ecosystem health, while there is a dearth of exhaustive researches pertaining to the efficient and cost-effective elimination of p-aminobenzoic acid. Herein, a Ti/SnO-Sb/CNT-α-PbO/CNT-Ce-β-PbO, referred to Ti/CNT/CNT-Ce-PbO electrode was constructed by incorporating CNTs into the middle layer of PbO electrode, and simultaneously doping CNTs and Ce in the active layer. A series of tests signify that the target electrode is successfully fabricated, which exhibits higher particle density and smaller particle size, as well as exceptional degradation performance for p-aminobenzoic acid with a degradation rate of 99.
View Article and Find Full Text PDFImpact of catalyst support on water-assisted CO oxidation over PdO/MO (M = Sn, Ti, and Si) catalysts: experimental and theoretical investigation.
Nanoscale
December 2024
College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
This study examines the impact of different supports, SnO, TiO, and SiO, on the catalytic performance and water resistance of PdO-based catalysts for CO oxidation. By merging experimental data with DFT calculations, we reveal the distinct characteristics exhibited by each catalyst. Specifically, PdO/TiO stands out with exceptional CO oxidation activity, attributed to its minute Pd grain size, robust CO adsorption capacity, and optimal Pd dispersion on the TiO surface.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!