2021年4月16日 · In this paper, the surface enhanced Raman scattering (SERS) characteristics of Au and Au@Al 2 O 3 nanoparticle dimers were calculated and analyzed by using finite element method (3D-FEM).

Overall, the presence of Au2O3 caused a significant improvement in the insulating strength of the ZnO added SeO2-P2O5 glasses and hence such glasses may be considered as insulating layers in the...

2019年4月1日 · The Raman modes are more resolved in the Raman spectra of as-deposited Au incorporated films compared to the pure In 2 O 3 film. The typical Raman modes of cubic bixbyite In 2 O 3 phase are reported to be located at 108, 118, 306, 365, 495 and 627 cm −1 [32].

2024年12月21日 · The Raman peaks of the as-prepared Au/NiFe-LDH appear at 458 and 540 cm –1 under 532 nm laser excitation. During the OER process (Figure 8a), two distinctive Raman peaks initially observed at 444 and 520 cm –1 are attributed to Ni 2+ –OH and Fe 3+ –OOH vibrations, respectively.

2020年10月19日 · Here, we present a combination of advanced density functional theory (DFT) calculations considering implicit solvent contributions and time-resolved electrochemical surface-enhanced Raman spectroscopy (EC-SERS) to identify short-lived reaction intermediates during the showcase electro-reduction of Au oxide (AuOx) in sulfuric acid over several te...

Using operando Raman nanoscopy, authors image the reversible, concurrent formation of nanometer-spatially separated Au2O3 and Au2O species during Au nanodefect oxidation.

2021年5月6日 · Using treated Au nanoparticles work as both Raman probe and catalyst, a reaction intermediate OOH with band at 822 cm −1 during H 2 O 2 decomposition was observed with spectroscopic measurement...

2010年1月31日 · Raman spectrum displays that the Al 2 O 3 microcones match better with single crystal than bulk Al 2 O 3, revealing a good crystalline nature. The photoluminescence (PL) spectrum reveals a strong red luminescence at 693 nm and three small-shoulder emission bands at 677, 706 and 712 nm, respectively.

2016年3月1日 · Raman spectra of γ-, γ∗ -Al 2 O 3 demonstrate strong differences in spinal structures. Spectroscopic features of the local structure of high purity (with the content of impurities <10 −3 wt.%) spinel-like γ- and γ ∗ -Al 2 O 3 phases differing in …

A three-phase self-assembly method is presented that successfully results in ordered Au NP monolayers for particle diams. ranging from 13 to 90 nm. The monolayer structure and Raman enhancement factors (EFs) are reported for a model analyte, rhodamine, as well as the best performing polymer electrolyte salt, lithium bis(trifluoromethane ...