Hydrogen responses of ultrathin Pd films and nanowire networks with a Ti buffer layer.

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of Materials Science

DOI:https://doi.org/10.1007/s10853-012-6601-1· OSTI ID:1049039

Zeng, X Q; Wang, Y L; Xiao, Z L; Latimer, M L; Xu, T; Kwok, W K ^[1]

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1. Materials Science Division

We report on hydrogen responses of ultrathin films and nanowire networks of palladium on titanium buffered silicon substrates and filtration membranes, respectively. We found that in both systems signatures such as retarding responses and saturation of the resistance changes at high hydrogen concentrations associated with the transition from Pd/H solid solution to Pd hydride diminish with decreasing the thickness of the palladium layer from 7 to 2 nm. Our results not only reveal a new way to suppress the phase transition in Pd/H system but also provide an alternative approach to achieve fast and sensitive hydrogen sensors with a wide concentration detection range.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1049039
• Report Number(s): ANL/MSD/JA-73526; JMTSAS; TRN: US201217%%305
• Journal Information: Journal of Materials Science, Vol. 47, Issue 18; ISSN 0022-2461
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

08 HYDROGEN
BUFFERS
DETECTION
FILTRATION
HYDRIDES
HYDROGEN
MEMBRANES
PALLADIUM
SATURATION
SENSORS
SILICON
SOLID SOLUTIONS
SUBSTRATES
THICKNESS
TITANIUM