Cost-Effective Method for Producing Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen.

Lanning, B. ; Arps, A.

Technical Information Center Oak Ridge Tennessee

关键词: Alloys;    Palladium alloys;    Hydrogen;    Coal derived alloys;    Commercialization;   

RP-ID  :  DE2005840474

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Over the last quarter, we continued to optimize procedures for producing free-standing, defect free films using rigid silicon and glass substrates. A strong correlation was observed between sputter power and formation of defects (pinholes) in the film; i.e., lower power, and correspondingly lower deposition rate, results in a lower defect density. Films less than 1 um-thick have been successfully released from both silicon and glass substrates although the minimum thickness for pinhole-free films over a 4-inch diameter disc is still on the order of 3-4um. Results from hydrogen permeation testing over the last quarter have shown a marked increase in membrane performance primarily due to proper alloy composition and pre-treatment procedures.