Publications by authors named "Paula Cecilia dos Santos Claro"
Doping is a well-known approach to modulate the electronic and optical properties of nanoparticles (NPs). However, doping at nanoscale is still very challenging, and the reasons for that are not well understood. We studied the formation and doping process of iron and iron oxide NPs in real time by in situ synchrotron X-ray absorption spectroscopy.
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- As the demand for powerful batteries increases, managing their heat becomes crucial for their performance and safety.
- Researchers found that composite electrodes made with multiwalled carbon nanotubes have significantly higher thermal conductivities—up to 141 W/mK in-plane—compared to traditional carbon black electrodes.
- The electrodes were created using a cost-effective filtration process and showed promising properties for high-performance applications, demonstrating their potential for improving thermal management in Li-ion and other high-density batteries.
Nanoripple structures spontaneously formed at room temperature during chemical and electrochemical deposition of metals, semiconductors, and alloys on gold and copper templates, patterned with nanocavities, have been studied by atomic force microscopy (AFM) and scanning tunneling microscopy (STM). Annealing the templates at approximately equal to 373 K also results in ripple formation. Both experimental results and modeling, including anisotropic surface diffusion, demonstrate that nanocavity size in the template determines the ripple wavelength and amplitude, prior to a final stage of coarsening.
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