Preparation of a Pd–Pt alloy on alumina and its application for a gas chromatography

Thermodynamic and Magnetic Properties of Pd<SUB>0.93</SUB>Ag<SUB>0.07</SUB> Hydride

“…Especially, palladium rich alloys are promising column materials for a newly developed gas chromatography for hydrogen isotope separation owing to a large isotope effect for hydrogen absorption. [1][2][3][4] The gas chromatographic system working at near ambient temperatures can separate each hydrogen isotope from a mixture of hydrogen isotopes without using any replacement gas.…”

H2/D2 Separation Using UTSA-16@CAU-10-H@γ-AlOOH Composites as the Stationary Phase in Gas Chromatography via the Additive Effects of Kinetic Sieving and Chemical Affinity Quantum Sieving

“…Metal−organic framework (MOF) materials are a new type of porous materials for the separation of hydrogen isotopes in recent years. 4−10 Compared with the reported materials used in gas chromatography as stationary phase materials for the separation of hydrogen isotopes, 11,12 such as Pd−Pt alloy, 13 zeolites, 14−19 glass microspheres, 20 activated alumina, 21 and carbon-based materials, 22 the tunability of the pore structure, specific surface area, and excellent thermal stability of MOFs endow them with potential significance for hydrogen isotope separation. 23 Previous studies indicated that the separation of hydrogen isotopes by MOFs mainly relied on the kinetic quantum sieving (KQS) effect 24 and the chemical affinity quantum sieving (CAQS) effect.…”

“…Deuterium is a stable isotope of hydrogen, which is not only a potential source of energy for nuclear fusion reactors but also widely used in medical and scientific experiments. , However, the abundance of deuterium is only 0.015% in nature, and the physical and chemical properties and size of the hydrogen isotopes are very similar, so the separation of D 2 from hydrogen isotopes is extremely challenging. Metal–organic framework (MOF) materials are a new type of porous materials for the separation of hydrogen isotopes in recent years. − Compared with the reported materials used in gas chromatography as stationary phase materials for the separation of hydrogen isotopes, , such as Pd–Pt alloy, zeolites, − glass microspheres, activated alumina, and carbon-based materials, the tunability of the pore structure, specific surface area, and excellent thermal stability of MOFs endow them with potential significance for hydrogen isotope separation …”

Kinetic and Chemical Affinity Quantum Sieving Effects of ZIF-67 for H2 and D2 and Gas Chromatographic Separation of Hydrogen Isotopes on Columns Packed with ZIF-67@NH2-γ-Al2O3

“…However, these materials have very low selectivity because they are based only on pores and have no other sites of action. The second type includes metal or metalbased adsorbents based on chemical adsorption, which mainly rely on the chemical reaction of palladium and H 2 , such as alloy compounds, including precious metal Pd/Pt alloys and 13 Pd/Cu alloys, 14 and precious metal-loaded composite materials, such as Pd/Pt@Al 2 O 3 , 15 but these materials are very costly, the reaction between them with hydrogen gas is violent, and the desorption of the gas is difficult. Therefore, it is of great significance to find materials with high resolution and low cost for separating hydrogen isotopes.…”