Descripción del proyecto
Un método no destructivo para estudiar las propiedades químicas y físicas de los nanomateriales coloidales
Los coloides son mezclas compuestas en las que partículas microscópicas de una sustancia están dispersas de forma homogénea por toda una segunda sustancia. En la industria, se utilizan en la transformación de alimentos, cosmética y pinturas de dispersión a fin de conseguir las propiedades de fluidez necesarias. Las fuentes de luz de rayos X modernas son perfectas para investigar las reacciones y las estructuras de los compuestos químicos. Sin embargo, su fuerte radiación destruye los nanomateriales coloidales. El proyecto LINCHPIN, financiado con fondos europeos, tiene como objetivo desarrollar unos microrreactores innovadores que deberían permitir que los investigadores analicen nanomateriales coloidales mediante métodos de radiación no destructivos. El trabajo del proyecto podría llevar al desarrollo de nanomateriales con unas propiedades electrónicas excelentes para su uso en la conversión y el almacenamiento de energía.
Objetivo
The recent successful applications of photon-in-photon-out spectroscopy in condense matter physics, bio-inorganic chemistry and catalysis build upon the high brilliance of modern X-ray sources and realization of dedicated emission spectrometers. However, probing with highly energetic X-ray beam puts many constraints on the sample environment and requires probing faster than the X-ray radiation damage occurs. This strongly limits the applicability of the method in studying the chemistry of colloidal nanomaterials.
The objective of LINCHPIN is to investigate the emergence of electronic structure of nanomaterials in solution by hard X-ray photon-in-photon-out spectroscopy. To reach this very ambitious target, LINCHPIN consolidates an interdisciplinary engineering, spectroscopic and chemically driven effort. My group aim for developing micro-reactors, which will enable new fundamental insights related to the chemistry and electronic properties of the transition metal nitrides and sulfides.
The main scientific goals are to study at the relevant time scales the kinetics and dynamics of: (a) short-lived molecular intermediate states and pre-nucleation clusters, (b) metal-sulfur and metal-nitrogen bond formation and their condensation in solution, (c) electronic structure changes during growth of nanostructures, and (d) concurrently interdependent electronic and chemical processes. The ultimate goal is to have a handle on designing and selecting, still in the reaction solution, the nanomaterials with the most promising electronic properties relevant for energy conversion and storage. Moreover, the proposed micro-reactors along with experimental spectroscopic protocols and the concurrent fundamental knowledge create a paradigm shift for in situ time-resolved experiments with an impact in many other fields ranging from catalysis, sustainable flow chemistry to biomedical applications.
Ámbito científico
- natural scienceschemical sciencesinorganic chemistrybioinorganic chemistry
- natural scienceschemical sciencescatalysis
- engineering and technologynanotechnologynano-materials
- engineering and technologyenvironmental engineeringenergy and fuelsenergy conversion
- natural sciencesphysical sciencesopticsspectroscopy
Palabras clave
Programa(s)
Régimen de financiación
ERC-COG - Consolidator GrantInstitución de acogida
20148 Hamburg
Alemania