Molecular Beam-Thermal Desorption Spectrometry (MB-TDS) Monitoring of Hydrogen Desorbed from Storage Fuel Cell Anodes

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Lobo, RFM (Autor) Outra; Sequeira, CAC (Autor) Outra; Ribeiro, JHF (Autor) Outra

Revista

Título: Materials

Vol. 5

Páginas: 248-257

ISSN: 1996-1944

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-002-DCK

DOI: 10.3390/ma5020248

Abstract (EN): Different types of experimental studies are performed using the hydrogen storage alloy (HSA) MlNi(3.6)Co(0.85)Al(0.3)Mn(0.3) (Ml: La-rich mischmetal), chemically surface treated, as the anode active material for application in a proton exchange membrane fuel cell (PEMFC). The recently developed molecular beam-thermal desorption spectrometry (MB-TDS) technique is here reported for detecting the electrochemical hydrogen uptake and release by the treated HSA. The MB-TDS allows an accurate determination of the hydrogen mass absorbed into the hydrogen storage alloy (HSA), and has significant advantages in comparison with the conventional TDS method. Experimental data has revealed that the membrane electrode assembly (MEA) using such chemically treated alloy presents an enhanced surface capability for hydrogen adsorption.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10