resumo
Zinc-aluminum layered double hydroxides with nitrate intercalated (Zn(n)Al-NO3, n = Zn/Al) is an intermediate material for the intercalation of different functional molecules used in a wide range of industrial applications. The synthesis of Zn(2)Al-NO3 was investigated considering the time and temperature of hydrothermal treatment. By examining the crystallite size in two different directions, hydrodynamic particle size, morphology, crystal structure and chemical species in solution, it was possible to understand the crystallization and dissolution processes involved in the mechanisms of crystallite and particle growth. In addition, hydrogeochemical modeling rendered insights on the speciation of different metal cations in solution. Therefore, this tool can be a promising solution to model and optimize the synthesis of layered double hydroxide-based materials for industrial applications. (C) 2016 Elsevier Inc. All rights reserved.
palavras-chave
HYDROTALCITE-LIKE COMPOUNDS; ACTIVE CORROSION PROTECTION; X-RAY-DIFFRACTION; ANION-EXCHANGE; LDH; AL; ZN; NANOPARTICLES; CATALYSTS; PSEUDOPOTENTIALS
categoria
Chemistry
autores
Galvao, TLP; Neves, CS; Caetano, APF; Maia, F; Mata, D; Malheiro, E; Ferreira, MJ; Bastos, AC; Salak, AN; Gomes, JRB; Tedim, J; Ferreira, MGS
nossos autores
Ana Caetano
Estudante de doutoramento
Andrei Salak
Investigador Principal
António Alexandre Cunha Bastos
Investigador Auxiliar
Cristina Sofia dos Santos Neves
Investigador Júnior
Diogo Miguel Rodrigues Marinho da Mata
Bolseiro de pós-Doutoramento
Eliana Manuela dos Santos Silva Malheiro
Bolseiro de investigação
Frederico Calheiros Maia
Estudante de doutoramento
João Tedim
Professor associado
José R. B. Gomes
Investigador Principal
Maria João Gomes Ferreira
Bolseiro de pós-Doutoramento
Mário Guerreiro Silva Ferreira
Professor(a) Jubilado(a)
Tiago Luís Pereira Galvão
Professor AuxiliarGrupos
G3 - Materiais Eletroquímicos, Interfaces e Revestimentos
G4 - Materiais Renováveis e Economia Circular
G6 - Materiais Virtuais e Inteligência Artificial
Projectos
CICECO - Aveiro Institute of Materials (UID/CTM/50011/2013)
FUNACOP - Nanomateriais para aplicação em revestimentos funcionais (FUNACOP)
agradecimentos
This work was developed in the scope of the project CICECO-Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (Ref. FCT UID/CTM/50011/2013), financed by national funds through the FCT/MEC and when applicable co-financed by FEDER under the PT2020 Partnership Agreement. This work is also funded by ERDF Funds through the Regional Operational Program of the Centre - MAIS Centro in the frame of the project FUNACOP - FCOMP-01-0124-FEDER- 38777. The Investigador FCT program is acknowledged. JT thanks FCT for the researcher grant IF/00347/2013.