A scalable electron beam irradiation platform applied for allotropic carbon transformation

Autor(es)

de Campos da Costa, Joao Paulo ^{[1, 2]} ; Teodoro, Vinicius ^[2] ; Assis, Marcelo ^[2] ; Bettini, Jefferson ^[3] ; Andres, Juan ^[4] ; Pereira do Carmo, Joao Paulo ^[1] ; Longo, Elson ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Elect Engn SEL, BR-13566590 Sao Carlos, SP - Brazil

^[2] Fed Univ Sao Carlos UFSCar, Dept Chem, INCTMN CDMF, BR-13565905 Sao Carlos, SP - Brazil

^[3] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083970 Campinas - Brazil

^[4] Univ Jaume I UJI, Dept Analyt & Phys Chem, Castellon de La Plana 12071 - Spain

• Tipo de documento: Artigo Científico
• Fonte: Carbon; v. 174, p. 567-580, APR 15 2021.
• Citações Web of Science: 0

Resumo

The design of solid-state materials whose properties and functions can be manipulated in a controlled manner by the application of electron beam irradiation is important in modern materials chemistry and physics. In this paper, we present a progress in the development of scalable electron beam irradiation platform to obtain innovative materials for technological and industrial applications, since one of the problems to be solved in this research area is the scalability of these new nanomaterials induced by electron beam irradiation (EBI). In particular, we focus on carbon structures due to its excellent and exciting properties applied in the technological area in the last years, where we show for the first time a new strategy for carbon allotropic transformation through the portable EBI. This new platform is particularly effective, fast, versatile, clean and easy-to-use, facilitating the preparation of many types of nanomaterials that cannot be obtained by conventional chemical and physical methods. The EBI on flat graphite pellets resulted in a covering of it surface with rod-like particles composed of different allotropic forms of carbon. Furthermore, the developed system allowed the implantation of the Fe as a catalytic material through steel sputtering of the high voltage acceleration anode during the EBI process. It was observed by HRTEM analyses that the rod-like particles are preferentially composed of highly oriented graphite in its bottom, polycrystalline graphite in its middle and magnetite nanoparticles in its top. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 19/18656-6 - Desenvolvimento de sistema de irradiação por feixe de elétrons e sua aplicação na modificação de materiais semicondutores
• Beneficiário: João Paulo de Campos da Costa
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs