Novel synthesis of Ag@Co/RGO nanocomposite and its high catalytic activity towards hydrogenation of 4-nitrophenol to 4-aminophenol

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Rahul Krishna (Autor) Outra; Diana M Fernandes (Autor) Outra; Catarina Dias (Autor) Outra; Joao Ventura (Autor) FCUP; Venkata V Ramana (Autor) Outra; Cristina Freire (Autor) FCUP; Elby Titus (Autor) Outra

Revista

Título: International Journal of Hydrogen Energy

Vol. 40

Páginas: 4996-5005

ISSN: 0360-3199

Editora: Elsevier

Indexação

ISI Web of Knowledge - 48 Citações

Scopus - 47 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

Outras Informações

ID Authenticus: P-00A-C16

DOI: 10.1016/j.ijhydene.2014.12.045

Abstract (EN): We report a facile and green method for the synthesis of Ag@Co/RGO nanocomposite using two reducing agents, L-ascorbic acid (L-AA) and sodium borohydride (NaBH4) at room temperature (RT) and explored the practical application for catalysis reaction. The structure, composition and morphology of the catalyst were characterized by using X-ray diffraction (XRD), vibrating sample magnetometer (VSM), Fourier transform infrared spectroscopy (FTIR), Raman, scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDX) techniques. Further, the catalytic activity of Ag@Co/RGO nanocomposites was investigated for hydrogenation of p-nitrophenol (4-NP) to p-aminophenol (4-AP) and it showed a remarkable high activity 45 s at RT with excellent stability up to 5 cycles. Copyright

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10