Descripción del proyecto
Una técnica espectroscópica mejorada para la caracterización de nanomateriales de carbono
Las propiedades físicas, químicas y mecánicas tan extraordinarias de los nanomateriales los hacen adecuados para una amplia gama de aplicaciones, por ejemplo, en sensores, catálisis, supercondensadores y almacenamiento de energía. El carbono vítreo, por ejemplo, se usa ampliamente en sensores, pero sus propiedades aún no se conocen bien. La falta de métodos con resolución y sensibilidad elevadas para caracterizar las propiedades de los materiales dificulta el desarrollo de nanomateriales de carbono a medida y la introducción de mejoras adicionales en el rendimiento de los sensores. En colaboración con la NASA y el SLAC National Accelerator Laboratory, y financiado mediante las Acciones Marie Skłodowska-Curie, el proyecto TACOMA desarrolla la primera configuración de espectroscopia de rayos X suave del mundo basada en tecnología de sensor de transición. Esta tecnología podría dar lugar a estudios espectroscópicos «in situ» dedicados a los grupos funcionales de la superficie del carbono y los enlaces entre carbono y metal.
Objetivo
Impact of carbon nanomaterials (CNM) on society can be significant as they have the potential to revolutionize applications in sensors, catalysis, supercapacitors and energy storage. For sensors, currently used materials such as glassy carbon (GC), cannot selectively and sensitively detect neurotransmitters in physiological environment and the required surface properties in a given application environment are not known. However, by understanding the connection between sensing performance and material properties we can enable tailor-made materials. Unfortunately, even with the rigorously studied GC, this is not known. This can be attributed to the limited access to highly sensitive and high-resolution characterization methods and especially to the lack of in situ measurements. TACOMA-Project offers implementation of the world’s first in situ soft X-ray Spectroscopy (X-RS) setup with Stanford Linear Accelerator Laboratory and NASA based on the new transition edge sensor technology allowing detailed spectroscopic studies of carbon, its surface functional groups and various carbon-metal bonds under realistic use environments. Further, a novel hybrid characterization method combining photoelectron, absorption and X-ray emission spectroscopy to study CNM as fabricated, chemically modified and aged under laboratory conditions will be established. TACOMA is supported by a network of collaborators providing (i) access to machine learning and atomistic simulations that are integrated with the experimental work, (ii) insight into electrochemistry and (iii) access to high-resolution transmission electron microscopy. The TACOMA-Project will address questions such as what is the root cause of the electrocatalytic properties of CNM and how surface of the CNM evolves in the application environment? This will realize the huge potential of CNMs and allow the future fellow to transfer this unique knowledge of CNM and X-RS to European universities, industry and synchrotron facilities.
Ámbito científico
- natural sciencesphysical sciencestheoretical physicsparticle physicsparticle accelerator
- natural scienceschemical sciencescatalysiselectrocatalysis
- natural sciencesphysical sciencesopticsspectroscopyemission spectroscopy
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensors
- engineering and technologynanotechnologynano-materials
Palabras clave
Programa(s)
Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
90014 Oulu
Finlandia