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The American University Operations And Supply Chain Management Assignment Help - Ultra-pure hydrogen

Question - Ultra-pure hydrogen is required in applications ranging from the manufacturing of semiconductors to powering fuel cells. The crystalline structure of palladium allows only the transfer of atomic hydrogen (H) through its thickness, and therefore palladium membranes are used to filter hydrogen from contaminated streams containing mixtures of hydrogen and other gases. Hydrogen molecules (H2) are first adsorbed onto the palladium's surface and are then dissociated into atoms (H), which subsequently diffuse through the metal. The H atoms recombine on the opposite side of the membrane, forming pure H2. The surface concentration of H takes the form CH = KspH20.5, where Ks ˜ 1.4k mol/m3 · bar 0.5 is known as Sievert's constant. Con ...Read More

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