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

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Lobo, RFM (Author) Other; Sequeira, CAC (Author) Other; Ribeiro, JHF (Author) Other

Journal

Title: Materials

Vol. 5

Pages: 248-257

ISSN: 1996-1944

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 2 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10