cicCartuja Centro de Investigaciones Científicas de la cartuja

  • Jobs & Training>>
  • On-surface synthesis and properties characterization of novel low-dimensional materials
< Alejandra Guerra (IIQ), premiada por la Real Sociedad Española de Química
18 November 2016 07:53 Age: 5 Years
Category: Conference ICMS

On-surface synthesis and properties characterization of novel low-dimensional materials


Conferencia: On-surface synthesis and properties characterization of novel low-dimensional materials

Ponente: Prof. Oliver Gröning Empa, Swiss Federal Laboratories for Materials Testing and Research  

Fecha: viernes, 18 de noviembre de 2016

Horario: 12:00 h

Lugar: Salón de Grados cicCartuja2

Abstract: In recent years on-surface chemical synthesis routes have succeeded in producing atomically precise nanostructures, whose synthesis cannot be achieved by standard wet chemical processes. This circumstance is due to a great extend to the usually insoluble nature of the products. In this respect, particular attention has been devoted to graphene derived carbon nanostructures such as graphene nanoribbons (GNR) and regular 2D carbon networks[1,2]. In our presentation we will review the recent developments in the field of on-surface chemical synthesis with a particular emphasis on the importance UHV-analytical and computational tools in understanding the physicochemical processes involved in the synthesis and in assessing the electronic properties of the produced nanostructures. The first part of the presentation will mainly touch the role of specific molecular precursors for the synthesis of graphene derived 2D and 1D nanostructures. We will discuss the electronic properties of these novel nanomaterials and their prospects to be used in future electronic devices.

In the second part the question, how the chemical synthesis can be guided by specific atomic surface structures will be addressed. In this context, we will turn our attention to the PdGa compound, which has been found to combine high selectivity and activity in acetylene semi-hydrogenation [3]. We will discuss the non-trivial atomic structure of the (111) and (-1-1-1) PdGa surface, which differ significantly in the local structure of the top most Pd atoms and therefore are model surfaces to study active site isolation and ensemble effects on catalyst selectivity [4]. We will then explore the possibilities of chiral selective adsorption and synthesis on these surfaces made possible by the intrinsic chiral nature of the P213 space group PdGa belongs to [5]. We show that the intrinsically chiral surfaces of PdGa can induce 99% chiral adsorption selectivity of prochiral 9-Ethynylphenantrene (9-EP) at room temperature. Similarly high chiral selectivity can be achieved in producing prochiral 9-EP trimers, which shows the potential of achieving highly asymmetric chemical synthesis on a high temperature stable metallic catalyst.


Center News

14 June 2021

El investigador del IIQ, Jesús Angulo, recibe reconocimiento de la RSEQ

Jesús es nombrado vicepresidente del Grupo Especializado de Resonancia Magnética Nuclear de la Real Sociedad Española de Química.

Category: IIQ

28 May 2021

Conocemos a los ganadores del concurso de nanorelatos 10alamenos9

Los premiados en el concurso de 10alamenos9 en Andalucía, ya han recibido su reconocimiento y diploma acreditativo.

Category: CSIC ICMS

26 April 2021

El proyecto de Biointeractómica del IIQ, financiado por Fund. Ramón Areces

Seleccionado en el XX Concurso Nacional para la adjudicación de Ayudas a la Investigación en ciencias de la Vida y de la Materia

Category: CSIC ICMS

26 April 2021

Jesús Campos, nombrado Premio ‘Joven Investigador 2021’, por La RSEQ y Lilly

El investigador recibirá esta condecoración que reconoce la excelencia en la calidad científica y en la trayectoria profesional de jóvenes promesas españolas menores de 40 años.

Category: CSIC ICMS

26 April 2021

Gerardo Colón, Specialty Chief Editor en Frontiers in Nanotechnology

El investigador del ICMSE es editor jefe de esta prestigiosa revista, en la sección Nanomateriales

Category: CSIC ICMS

19 March 2021

El proyecto de Cristina Megías, financiado por la prestigiosa MSCA

Cristina, que hizo su doctorado en el ICMS, afrontará con su investigación el reciclaje de plásticos y residuos de biomasa para la generación de biopolímertos

Category: CSIC

15 March 2021

SOUNDofICE, el gran proyecto que solucionará la formación de hielo

Coordinado por el Grupo de Nanotecnología en Superficies y Plasma, del ICMS.

Category: CSIC