Laser and electron beam-induced formation of Ag/Cr structures on Ag2CrO4

Autor(es)

Lemos, P. S. ^[1] ; Silva, G. S. ^[1] ; Roca, R. A. ^[1] ; Assis, M. ^[1] ; Torres-Mendieta, R. ^[2] ; Beltran-Mir, H. ^[3] ; Minguez-Vega, G. ^[4] ; Cordoncillo, E. ^[3] ; Andres, J. ^[5] ; Longo, E. ^[6]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, INCTMN CDMF, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[2] Tech Univ Liberec, Inst Nanomat Adv Technol & Innovat, Studentska 1402-2, Liberec 46117 - Czech Republic

^[3] UJI, Dept Inorgan & Organ Chem, Castellon de La Plana 12071 - Spain

^[4] UJI, GROC UJI, Inst Noves Tecnol Imatge INIT, Castellon de La Plana 12071 - Spain

^[5] UJI, Dept Analyt & Phys Chem, Castellon de La Plana 12071 - Spain

^[6] Univ Estadual Paulista, INCTMN UNESP, POB 355, BR-14801907 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Chemistry Chemical Physics; v. 21, n. 11, p. 6101-6111, MAR 21 2019.
• Citações Web of Science: 2

Resumo

The interactions of silver chromate (Ag2CrO4) with a femtosecond (fs) laser and electron beam irradiations were investigated. For the first time, the growth and coalescence of metallic Ag nanoparticles (NPs) on an Ag2CrO4 surface via fs laser irradiation can be reported. Furthermore, electron beam irradiation causes a segregation process of Ag NPs in which Ag nanofilaments are obtained. The Ag2CrO4 particles were characterized using X-ray diffraction (XRD), micro-Raman spectroscopy (Raman), field-emission scanning electron microscopy (FE-SEM), high-resolution electron microscopy, and energy-dispersive X-ray spectroscopy (EDS). According to the results, the fs/electron beam irradiations of Ag2CrO4 are environmentally friendly, fast, and effective methods to produce metallic Ag NPs. Both strategies have enormous potential for the synthesis and morphological control of Ag NPs on templates or biotemplates, core-shells, decorations, and composites based on Ag2-xCrO4:Ag materials, which are difficult to synthesize using conventional chemical and physical methods. (AU)

• Processo FAPESP: 13/26671-9 - Estudo teórico-experimental de semicondutores multifuncionais
• Beneficiário: Amanda Fernandes Gouveia
• 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