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http://dx.doi.org/10.7464/ksct.2018.24.1.009

Evaluation of TiN-Zr Hydrogen Permeation Membrane by MLCA (Material Life Cycle Assessment)  

Kim, Min-Gyeom (Department of Material Science & Engineering, Korea National University of Trasportation)
Son, Jong-Tae (Department of Nano Polymer Science & Engineering, Korea National University of Trasportation)
Hong, Tae-Whan (Department of Material Science & Engineering, Korea National University of Trasportation)
Publication Information
Clean Technology / v.24, no.1, 2018 , pp. 9-14 More about this Journal
Abstract
In this study, Material life cycle evaluation was performed to analyze the environmental impact characteristics of TiN-Zr membrane manufacturing process. The software of MLCA was Gabi. Through this, environmental impact assessment was performed for each process. Transition metal nitrides have been researched extensively because of their properties. Among these, TiN has the most attention. TiN is a ceramic materials which possess the good combination of physical and chemical properties, such as high melting point, high hardness, and relatively low specific gravity, high wear resistance and high corrosion resistance. With these properties, TiN plays an important role in functional materials for application in separation hydrogen from fossil fuel. Precursor TiN was synthesized by sol-gel method and zirconium was coated by ball mill method. The metallurgical, physical and thermodynamic characteristics of the membranes were analyzed by using Scanning Electron Microscope (SEM), Energy Dispersive X-ray (EDS), X-ray Diffraction (XRD), Thermo Gravimetry/Differential Thermal Analysis (TG/DTA), Brunauer, Emmett, Teller (BET) and Gas Chromatograph System (GP). As a result of characterization and normalization, environmental impacts were 94% in MAETP (Marine Aquatic Ecotoxicity), 2% FAETP (Freshwater Aquatic Ecotoxicity), 2% HTP (Human Toxicity Potential). TiN fabrication process appears to have a direct or indirect impact on the human body. It is believed that the greatest impact that HTP can have on human is the carcinogenic properties. This shows that electricity use has a great influence on ecosystem impact. TiN-Zr was analyzed in Eco-Indicator '99 (EI99) and CML 2001 methodology.
Keywords
MLCA (Material Life Cycle Assessment); TiN; Zr; Hydrogen permeation membrane; Sol-Gel method;
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Times Cited By KSCI : 2  (Citation Analysis)
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