Spontaneous hydrogen generation from organic-capped Al nanoparticles and water.
ACS Appl Mater Interfaces
; 2(1): 11-4, 2010 Jan.
Article
em En
| MEDLINE
| ID: mdl-20356213
ABSTRACT
The development of technologies that would lead toward the adoption of a hydrogen economy requires readily available, safe, and environmentally friendly access to hydrogen. This can be achieved using the aluminum-water reaction; however, the protective nature and stability of aluminum oxide is a clear detriment to its application. Here, we demonstrate the spontaneous generation of hydrogen gas from ordinary room-temperature tap water when combined with aluminum-oleic acid core-shell nanoparticles obtained via sonochemistry. The reaction is found to be near-complete (>95% yield hydrogen) with a tunable rate from 6.4x10(-4) to 0.01 g of H2/s/g of Al and to yield an environmentally benign byproduct. The potential of these nanoparticles as a source of hydrogen gas for power generation is demonstrated using a simple fuel cell with an applied load.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Água
/
Ácido Oleico
/
Nanopartículas Metálicas
/
Alumínio
/
Hidrogênio
Idioma:
En
Revista:
ACS Appl Mater Interfaces
Assunto da revista:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Ano de publicação:
2010
Tipo de documento:
Article