3D printing as the state-of-the-art emerging technology offers a platform for the new industrial horizons. The manufacturing process for creating 3D physical objects done via successive layer-by-layer deposition of materials such as metal, plastic, ceramics, or even living cells. The 3D printing concept was first proposed in the 1980s using stereolithography to make polymer objects. 3D technology could transform manufacturing, global product consumption and supply chains. The cover photo of July 2019 issue describes the structure of a 3D printed objects and to celebrate the 39th anniversary of its innovation.
Chemical Reactivity and Electronical Properties of Graphene and Reduced Graphene Oxide on Different Substrates
1Dipartimento di Fisica Università di Genova, Via Dodecaneso 33, 16146, Italy
2CNR IMEM Unità Operativa di Genova, Via Dodecaneso 33, 16146, Genova, Italy
Adv. Mater. Lett., 2019, 10 (8), pp 545-549
Publication Date (Web): Jul 02, 2019
Copyright © 2019 VBRI Press
The chemical reactivity and the electronical properties variation of graphene (G) supported on Ni(111) and of the reduced Graphene Oxide (rGO) will be described thanks to the framework of University of Genoa and Polytechnic of Turin. We will present the main results obtained on the reactivity, towards CO, of pristine graphene grown on Ni(111). Single layer graphene films are grown by ethene dehydrogenation on Nickel, under different experimental conditions, and the system is studied in-situ by X-ray Photoemission and High-Resolution Electron Energy Loss Spectroscopies before and after CO exposure at 87 K and at room temperature.
The main results were:
More applicative aspect is the modification of GO in rGO, by UV based process.
During the reduction, electrical properties is improved, opening possible application in the ink-jet printing mechanism as conductive printing system, coating or in the functionalization of G. © VBRI Press.
Graphene, graphene oxide, chemical reactivity, vibrational spectroscopy, surface chemistry