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Determination of Mechanical Properties of Composite Supports Used in Catalytic Membranes for Hydrogen Production and Separation
Author(s) -
DENİZ C. Utku,
TÜZÜN F. Nihal
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904838
Subject(s) - flexural strength , materials science , calcination , composite number , composite material , membrane , sodium silicate , modulus , elastic modulus , flexural modulus , catalysis , mixing (physics) , hydrogen , chemistry , organic chemistry , biochemistry , physics , quantum mechanics
This study includes the determination of mechanical properties involving equibiaxial flexural strength, elastic modulus, strain and hardness for composite supports developed to be used in catalytic membranes in order to produce and separate hydrogen. Composite supports are fabricated by mixing acidic, neutral and basic activated alumina types and sodium silicate binder. Three different Si /Al ratios are employed in the study. After preparing the support samples, they are calcined at the temperatures of 600 0 C and 1200 0 C for 11 hours and 22 hours respectively. At the end of calcination, equibiaxial flexural strength, elastic modulus, strain, hardness and solid density of supports are tested for both temperatures. Generally, higher mechanical properties and solid density results are obtained at 600 0 C and it is found that neutral alumina gives the best mechanical properties and solid density for Si /Al ratio of 0.648 at 600 0 C.