Hydrogen separation from blended natural gas and hydrogen by Pd-based membranes

Nayebossadri, Shahrouz; Speight, J.D.; Book, D. L.

doi:10.1016/j.ijhydene.2019.03.044

Cited by 58 publications

(19 citation statements)

References 26 publications

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“…into the Pd membrane to solve the H 2 embrittlement problem, enlarge the Pd lattice, and increase the H 2 permeation rate at the same time. Nayebossadri et al [57] studied the performance of H 2 in natural gas separated by Pd, PdCu 53 , and PdAg 24 membrane materials at different concentrations. They found that the H 2 permeability of the PdAg 24 membrane is better than that of the other two membranes.…”

Section: Metal Membranesmentioning

confidence: 99%

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

et al. 2021

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Nowadays, we face a series of global challenges, including the growing depletion of fossil energy, environmental pollution, and global warming. The replacement of coal, petroleum, and natural gas by secondary energy resources is vital for sustainable development. Hydrogen (H2) energy is considered the ultimate energy in the 21st century because of its diverse sources, cleanliness, low carbon emission, flexibility, and high efficiency. H2 fuel cell vehicles are commonly the end-point application of H2 energy. Owing to their zero carbon emission, they are gradually replacing traditional vehicles powered by fossil fuel. As the H2 fuel cell vehicle industry rapidly develops, H2 fuel supply, especially H2 quality, attracts increasing attention. Compared with H2 for industrial use, the H2 purity requirements for fuel cells are not high. Still, the impurity content is strictly controlled since even a low amount of some impurities may irreversibly damage fuel cells’ performance and running life. This paper reviews different versions of current standards concerning H2 for fuel cell vehicles in China and abroad. Furthermore, we analyze the causes and developing trends for the changes in these standards in detail. On the other hand, according to characteristics of H2 for fuel cell vehicles, standard H2 purification technologies, such as pressure swing adsorption (PSA), membrane separation and metal hydride separation, were analyzed, and the latest research progress was reviewed.

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Section: Metal Membranesmentioning

confidence: 99%

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

et al. 2021

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“…Therefore, separation of these gases by polymeric membrane is usually dominated by a sieving mechanism. On the other hand, H 2 is affinitive to group 10 metals, especially palladium (Pd), hence, metallic membrane or metal coated ceramic membrane are widely developed for H 2 separation and showed good efficacy [85,129,256,257]. In the field of NCM, membranologists often exploit this H 2 -metal interaction to design nanomaterials that are selective toward H 2 .…”

Section: Enhancing Gas Separation Performancementioning

confidence: 99%

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

et al. 2022

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Nanocomposite membrane (NCM) is deemed as a practical and green separation solution which has found application in various fields, due to its potential to delivery excellent separation performance economically. NCM is enabled by nanofiller, which comes in a wide range of geometries and chemical features. Despite numerous advantages offered by nanofiller incorporation, fabrication of NCM often met processing issues arising from incompatibility between inorganic nanofiller and polymeric membrane. Contemporary, functionalization of nanofiller which modify the surface properties of inorganic material using chemical agents is a viable approach and vigorously pursued to refine NCM processing and improve the odds of obtaining a defect-free high-performance membrane. This review highlights the recent progress on nanofiller functionalization employed in the fabrication of gas-separative NCMs. Apart from the different approaches used to obtain functionalized nanofiller (FN) with good dispersion in solvent and polymer matrix, this review discusses the implication of functionalization in altering the structure and chemical properties of nanofiller which favor interaction with specific gas species. These changes eventually led to the enhancement in the gas separation efficiency of NCMs. The most frequently used chemical agents are identified for each type of gas. Finally, the future perspective of gas-separative NCMs are highlighted.

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“…Palladium-based nanomaterials are an integral part of hydrogen energy devices [ 1 , 2 ], and they are in demand in catalysis [ 3 ], the chemical industry [ 4 , 5 ], and medicine [ 6 ]. The latest trend in the field of non-invasive diagnostics is associated with the study of exhaled breath to detect gaseous biomarkers of respiratory (NO, NO 2 ), kidney (NH 3 ), and other diseases [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

The Theoretical and Experimental Investigation of the Fluorinated Palladium β-Diketonate Derivatives: Structure and Physicochemical Properties

et al. 2022

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To search for new suitable Pd precursors for MOCVD/ALD processes, the extended series of fluorinated palladium complexes [Pd(CH3CXCHCO(R))2] with β-diketone [tfa−1,1,1-trifluoro-2,4-pentanedionato (1); pfpa−5,5,6,6,6-pentafluoro-2,4-hexanedionato (3); hfba−5,5,6,6,7,7,7-heptafluoro-2,4-heptanedionato (5)] and β-iminoketone [i-tfa−1,1,1-trifluoro-2-imino-4-pentanonato (2); i-pfpa−5,5,6,6,6-pentafluoro-2-imino-4-hexanonato (4); i-hfba-5,5,6,6,7,7,7-heptafluoro-2-imino-4-heptanonato (6)] ligands were synthesized with 70–80% yields and characterized by a set of experimental (SXRD, XRD, IR, NMR spectroscopy, TG) and theoretical (DFT, Hirshfeld surface analysis) methods. Solutions of Pd β-diketonates contained both cis and trans isomers, while only trans isomers were detected in the solutions of Pd β-iminoketonates. The molecules 2–6 and new polymorphs of complexes 3 and 5 were arranged preferentially in stacks, and the distance between molecules in the stack generally increased with elongation of the fluorine chain in ligands. The H…F contacts were the main ones involved in the formation of packages of molecules 1–2, and C…F, F…F, NH…F contacts appeared in the structures of complexes 4–6. The stability of complexes and their polymorphs in the crystal phases were estimated from DFT calculations. The TG data showed that the volatility differences between Pd β-iminoketonates and Pd β-diketonates were minimized with the elongation of the fluorine chain in the ligands.

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Hydrogen separation from blended natural gas and hydrogen by Pd-based membranes

Cited by 58 publications

References 26 publications

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

The Theoretical and Experimental Investigation of the Fluorinated Palladium β-Diketonate Derivatives: Structure and Physicochemical Properties

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