AI Article Synopsis
- A new electrochemical technique allows for the creation of uniform tantalum oxide membranes, ranging from 35 to 100 nm in thickness.
- The membranes can be easily separated and transferred to different surfaces like silicon wafers and glass slides.
- They possess strong mechanical and chemical stability, along with high dielectric and refractive properties, making them suitable for applications in sensors, optics, filtration, and catalysis.
Article Abstract
We report a simple electrochemical method of making individual free-standing and uniform tantalum oxide membranes between 35 and 100 nm thick. These films can be separated, floated on water, and transferred onto various substrates such as Si wafers, glass slides, and TEM grids. Our membranes are mechanically, chemically, and thermally robust, have a high dielectric constant, and a high refractive index, making them potentially useful in sensors, optics, filtration, and catalysis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/nl071061z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Size Dependence of the Band Gap of Core-Shell Tantalum and Tantalum Oxide (V) Nanoclusters.
Nanomaterials (Basel)
December 2024
Department No. 78 Physical and Technical Problems of Metrology, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia.
Monodisperse films of spherical tantalum oxide (V) nanoclusters and spherical tantalum nanoclusters with a tantalum oxide shell with diameters of 1.4-8 nm were obtained by magnetron sputtering. The size of the deposited nanoclusters was controlled using a quadrupole mass filter.
View Article and Find Full Text PDFProtection Materials on III-V Semiconductors for Photoelectrochemical CO Reduction.
J Phys Chem C Nanomater Interfaces
December 2024
Department of Physics, Technical University of Denmark, Fysikvej 307, 2800 Kongens Lyngby, Denmark.
Article Synopsis
- * A specific structure with 150 nm TiO, 8 nm TaO, and 150 nm copper nanocubes showed a faradaic efficiency of 24% under certain conditions when integrated into a photoelectrochemical flow reactor.
- * Directly attaching copper nanocubes to just the TiO layer led to hydrogen production instead of CO reduction, and further studies indicate that the loss of selectivity is related to small copper particle redeposition without changes in the TiO's
Boosting the Durability of High-Pt-Content Fuel Cell Cathode Catalysts Through TaO Decorating.
Small
December 2024
Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
Enhancing the durability of carbon-supported platinum catalysts (Pt/C) for the oxygen reduction reaction remains a significant challenge in the field of proton exchange membrane fuel cells (PEMFCs), especially for catalysts with high-Pt contents. Herein, a TaO decorating strategy that is capable of effectively boosting the durability of Pt/C catalysts even with a high-Pt content of 50 wt.% is introduced.
View Article and Find Full Text PDFAn Investigation of Oxides of Tantalum Produced by Pulsed Laser Ablation and Continuous Wave Laser Heating.
Materials (Basel)
October 2024
Nuclear and Chemical Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
Recent progress has seen multiple TaO polymorphs generated by different synthesis techniques. However, discrepancies arise when these polymorphs are produced in widely varying thermodynamic conditions and characterized using different techniques. This work aimed to characterize and compare TaO particles formed at high and low temperatures using nanosecond pulsed laser ablation (PLA) and continuous wave (CW) laser heating of a local area of tantalum in either air or an O atmosphere.
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!