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: 4 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

3 July 2020

Cabimer lidera +ViTA, un proyecto para lograr un envejecimiento saludable

El grupo de investigación multidisciplinar del Cabimer, crea una campaña de crowdfunding para su desarrollo

Category: ICMS

3 July 2020

El Dr. Noureddine lidera proyecto para el tratamiento del SARS-CoV-2

El proyecto del Dr. Noureddine Khiar, director del IIQ, consiste en reutilizar medicamentos ya existentes que han dado resultados positivos sobre el virus.

Category: ICMS

18 June 2020

CicCartuja participa en la primera edición virtual de la Feria de la Ciencia

Este año nuestros tres institutos contarán con stands virtuales para sus experimentos científicos

Category: ICMS

12 June 2020

Antonio Rodríguez, 1º Premio en XV Concurso de Ideas de emprendimiento

La iniciativa es 3DBones, una idea patentada que ha logrado el Primer Premio Personal Docente Investigador en el Concurso de la US.

Category: ICMS

12 June 2020

Jesus Campos, nuevo académico de la Academia Joven de España

El Dr. Jesús Campos, investigador en Química Organometálica en el IIQ, nuevo académico en la AJE.

Category: ICMS

10 June 2020

El Dr. Juan Cámpora recibe el Premio GEQO a la Excelencia investigadora

El GEQO concede esta distinción por sus contribuciones excepcionales a la Química Organometálica.

Category: ICMS

10 March 2020

Don Antonio Paneque Guerrero, un pionero discreto

El pasado día 25 de febrero murió a los 92 años D. Antonio Paneque, que dejó una huella imborrable en el IBVF, instituto ayudó a fundar y al que sirvió hasta su jubilación como Profesor de Investigación del CSIC.