Advances in hydrogen selective membranes based on palladium ternary alloys

Bosko, María Laura; Fontana, Agustina Dalla; Tarditi, Ana María; Cornaglia, Laura María

doi:10.1016/j.ijhydene.2021.02.082

Cited by 53 publications

(7 citation statements)

References 126 publications

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“…Therefore, accurate and rapid detection is necessary during the production, storage, transportation and use of hydrogen 6 – 8 . Generally, selective hydrogen sensors are based on the catalytic reactivity and solubility of hydrogen with some noble metal elements, such as palladium and platinum 9 – 12 . Interaction of hydrogen with the sensing element causes changes in resistance 13 , 14 , work function 15 , volume 8 , 11 , temperature 16 , and refractive index 17 , which can be used to detect and quantify the hydrogen gas concentration.…”

Section: Introductionmentioning

confidence: 99%

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

et al. 2023

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Hydrogen energy is a zero-carbon replacement for fossil fuels. However, hydrogen is highly flammable and explosive hence timely sensitive leak detection is crucial. Existing optical sensing techniques rely on complex instruments, while electrical sensing techniques usually operate at high temperatures and biasing condition. In this paper an on-chip plasmonic–catalytic hydrogen sensing concept with a concentration detection limit down to 1 ppm is presented that is based on a metal–insulator–semiconductor (MIS) nanojunction operating at room temperature and zero bias. The sensing signal of the device was enhanced by three orders of magnitude at a one-order of magnitude higher response speed compared to alternative non-plasmonic devices. The excellent performance is attributed to the hydrogen induced interfacial dipole charge layer and the associated plasmonic hot electron modulated photoelectric response. Excellent agreements were achieved between experiment and theoretical calculations based on a quantum tunneling model. Such an on-chip combination of plasmonic optics, photoelectric detection and photocatalysis offers promising strategies for next-generation optical gas sensors that require high sensitivity, low time delay, low cost, high portability and flexibility.

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Section: Introductionmentioning

confidence: 99%

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

et al. 2023

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“…In addition, a significant difficulty in the fabrication of membranes based on pure palladium is the high metal cost [ 23 , 24 ]. Alloying palladium with other metals, such as silver, gold, copper, ruthenium, or nickel, makes it possible to overcome these difficulties [ 25 , 26 , 27 , 28 ]. For example, Q. Zhou et al have studied gas separation properties of membranes based on Pd–Au and Pd–Au-Ag alloys [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

2023

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Thin Pd–40%Cu films were obtained via the classical melting and rolling method, magnetron sputtering, and modified with nanostructured functional coatings to intensify the process of hydrogen transportation. The films were modified by electrodeposition, according to the classical method of obtaining palladium black and “Pd–Au nanoflowers” with spherical and pentagonal particles, respectively. The experiment results demonstrated the highest catalytic activity (89.47 mA cm−2), good resistance to CO poisoning and long-term stability of Pd–40%Cu films with a pentagonal structured coating. The investigation of the developed membranes in the hydrogen transport processes in the temperature range of 25–300 °C also demonstrated high and stable fluxes of up to 475.28 mmol s−1 m−2 (deposited membranes) and 59.41 mmol s−1 m−2 (dense metal membranes), which were up to 1.5 higher, compared with membrane materials with classic niello. For all-metal modified membranes, the increase in flux was up to sevenfold, compared with a smooth membrane made of pure palladium, and for deposited films, this difference was manyfold. The membrane materials’ selectivity was also high, up to 4419. The developed strategy for modifying membrane materials with functional coatings of a fundamentally new complex geometry can shed new light on the development and fabrication of durable and highly selective palladium-based membranes for gas steam reformers.

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“…There are many types of membranes reported to separate H 2 from CO 2 . Inorganic membranes, such as palladium membranes, 9 zeolite membranes, 10 and transition metal carbides membranes, 11 showed high permeance or selectivity to H 2 . However, it is difficult and costly to prepare inorganic membranes with uniform composition and precise and controllable proportion, which limits their large‐scale use 12 .…”

Section: Introductionmentioning

confidence: 99%

Molecular‐scale hybrid membranes: Metal‐oxo cluster crosslinked benzimidazole‐linked polymer membranes for superior H₂ purification

Guo,

Cong,

Luan

et al. 2023

AIChE Journal

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Hydrogen (H2) purification requires separation membranes with excellent performance and high stability. Here, a few nanometer‐sized Zr‐oxygen clusters (CP‐2) abundant in amino groups were incorporated in benzimidazole‐linked polymers (BILPs) by interfacial polymerization (IP) to fabricate molecular‐scale hybrid membranes for efficient H2/CO2 separation. The amino groups in CP‐2 engage in IP. The structure of the BILPs polymer chains is regulated and more H2 selective channels are created. The hybrid membranes provide an H2/CO2 selectivity of up to 75.2 (with a corresponding H2 permeance of 318 GPU) and a high H2 permeance of up to 1470 GPU (with a corresponding H2/CO2 selectivity of 23.6). In addition, the membranes exhibit satisfactory separation performance and durability under industry‐relevant conditions (573 K, 11 bar, or steam treatment).

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Advances in hydrogen selective membranes based on palladium ternary alloys

Cited by 53 publications

References 126 publications

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

Molecular‐scale hybrid membranes: Metal‐oxo cluster crosslinked benzimidazole‐linked polymer membranes for superior H₂ purification

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Advances in hydrogen selective membranes based on palladium ternary alloys

Cited by 53 publications

References 126 publications

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

On-chip ultrasensitive and rapid hydrogen sensing based on plasmon-induced hot electron–molecule interaction

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

Molecular‐scale hybrid membranes: Metal‐oxo cluster crosslinked benzimidazole‐linked polymer membranes for superior H2 purification

Contact Info

Product

Resources

About

Molecular‐scale hybrid membranes: Metal‐oxo cluster crosslinked benzimidazole‐linked polymer membranes for superior H₂ purification