Perovskite-based proton conducting membranes for hydrogen separation: A review

Hashim, Shahrul Amry; Somalu, Mahendra Rao; Loh, Kee Shyuan; Liu, Shaomin; Zhou, Wei; Sunarso, Jaka

doi:10.1016/j.ijhydene.2018.06.045

Cited by 99 publications

(58 citation statements)

References 110 publications

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“…If electronic transport is comparable with (or higher than) the ionic one, electrode‐free membranes for hydrogen‐separation reactors and electrode materials for electrode‐based SOCs can be purposefully designed . Unconventional proton transport for oxide materials allows the unique processes to be also carried out, for example, a precise H/D/T‐isotope analysis, conversion of harmful (NO x ) or widely available compounds (CO 2 ) to harmless and valuable products (N 2 , CO), conversion of saturated hydrocarbon (CH 4 , C 2 H 6 ) to unsaturated or aromatic compounds (C 2 H 4 , C 6 H 6 ), hydrogen compression, etc …”

Section: Introductionmentioning

confidence: 99%

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Wang

Medvedev

Shao

2018

Adv Funct Materials

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Fuel cells and electrolysis cells as important types of energy conversiondevices can be divided into groups based on the electrolyte material. However, solid oxide cells (SOCs) based on conventional oxygen-ion conductors are limited by several issues, such as high operating temperature, the difficulty of hydrogen purification from water, and inferior stability. To avoid these problems, proton-conducting oxides are proposed as electrolytes for SOCs in electrolysis and fuel cell modes. Since water vapor partial pressure (pH 2 O) is one of the main parameters determining the proton concentration in proton-conducting oxides (characteristics of which can be either improved or deteriorated), the pH 2 O control is extremely important for the optimization of the devices' performance and stability. This review provides an overview of the research progresses made for proton-conducting SOCs, especially for the impact of gas humidification on the operability and performance. Fundamental understanding of the main processes in proton-conducting SOCs and design principles for the key components are summarized and discussed. The trends, challenges, and future directions that exist in this dynamic field are also pointed out. This review will inspire interest from various disciplines and provide some useful guidelines for future development of proton-conductor-based energy storage and conversion systems.

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Section: Introductionmentioning

confidence: 99%

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Wang

Medvedev

Shao

2018

Adv Funct Materials

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“…Hydrogen‐rich gas mixtures rather than pure hydrogen are firstly produced from hydrocarbons and fossil fuels, and therefore, hydrogen purification and separation is an important process for hydrogen industrial utilization . Hydrogen permeation membranes based on ceramic proton conductors have been brought to the forefront of research attentions, owing to their inexpensiveness, less energy demanding with non‐galvanic operation, high selectivity, and good mechanical property . The driving force of hydrogen permeation is H 2 partial pressure difference across the membrane.…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen gas adsorbs and dissociates into protons and electron on hydrogen‐rich surface, and then protons and electrons transport from hydrogen‐rich side to lean side in respective paths. On hydrogen‐lean surface, protons and electrons restructure and thereby create hydrogen …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Hydrogen permeation membranes based on ceramic proton conductors have been brought to the forefront of research attentions, owing to their inexpensiveness, less energy demanding with non-galvanic operation, high selectivity, and good mechanical property. 4,5 The driving force of hydrogen permeation is H 2 partial pressure difference across the membrane. Hydrogen gas adsorbs and dissociates into protons and electron on hydrogen-rich surface, and then protons and electrons transport from hydrogen-rich side to lean side in respective paths.…”

Section: Introductionmentioning

confidence: 99%

“…On hydrogen-lean surface, protons and electrons restructure and thereby create hydrogen. 1,5 Strontium cerate and barium cerate are two of the most extensively studied membrane materials for hydrogen permeation and proton-conducting solid oxide fuel cells. Compared with barium cerate, strontium cerate with the high proton selectivity and almost non-oxygen ionic conductivity is more suitable for the application of dehydrogenation or hydrogenation membrane reactors.…”

Section: Introductionmentioning

confidence: 99%

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Study on hydrogen permeation of Ni‐BaZr _0.1 Ce _0.7 Y _0.2 O _{3−
δ} asymmetric cermet membrane

et al. 2019

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Summary Early on, we had reported the preparation process of Ni‐BaZr0.1Ce0.7Y0.2O3−δ asymmetric cermet membrane (Ni‐BZCY ACM). In this work, we further optimized the sintering procedure and investigated the effect of water vapor in feed gas, operating time, H2 concentration difference across the membrane, and dense layer thickness of Ni‐BZCY ACM on hydrogen permeation behaviors. Adding the water vapor into feed gas can effectively improve the hydrogen permeability due to the appearance of a new proton hydration path. An almost unchanged hydrogen permeation output during 100‐hour testing confirms the membrane stability under operating condition. More important, the rate‐limiting step for hydrogen permeation process was elucidated according to the relationship between dense membrane thicknesses and hydrogen permeation fluxes. The surface exchange kinetics predominated permeation performance when the thickness is down to 50 μm, especially at a lower temperature, which was found for the first time for Ni‐BZCY cermet membrane. This result indicated that enhancing exchange kinetics of membrane surface became significant and indispensable for higher hydrogen separation efficiency.

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Enhanced Hydrogen Permeability of Mixed Protonic–Electronic Conducting Membranes through an In‐Situ Exsolution Strategy

Weng

Ouyang

Lin

et al. 2022

Adv Funct Materials

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Mixed protonic–electronic conducting (MPEC) ceramic membranes with high H2 permeability and stability are significant for practical H2 separation. CO2‐tolerant lanthanum tungstate oxides have received much attention, but their low H2 permeability is their main problem for membrane applications. Herein, an efficient in‐situ exsolution strategy is proposed to enhance the H2 permeability and CO2 stability of lanthanum tungstate‐type membranes. During H2 permeation, the catalytic Pd nanoparticles are in‐situ generated from the bulk oxide lattices and dispersed evenly on the membrane surfaces, which greatly promotes the H2 surface exchange kinetics. Also, the protonic conductivity of the membranes is effectively improved through the introduction of Pd. Consequently, the H2 permeation flux is increased by 3.5 times and a maximum H2 flux of 1.3 mL min−1 cm−2 is achieved at 1000 °C through the La5.5(W0.6Mo0.4)0.95Pd0.05O11.25‐δ (LWMPd) membrane. The LWMPd membrane shows outstanding long‐term chemical stability during 300 h continuous operation in a CO2‐containing atmosphere. Therefore, this in‐situ exsolution formation of Pd nanoparticles provides effective guidance for developing competitive MPEC membranes for H2 separation and purification.

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Perovskite-based proton conducting membranes for hydrogen separation: A review

Cited by 99 publications

References 110 publications

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Study on hydrogen permeation of Ni‐BaZr _0.1 Ce _0.7 Y _0.2 O _{3−
δ} asymmetric cermet membrane

Enhanced Hydrogen Permeability of Mixed Protonic–Electronic Conducting Membranes through an In‐Situ Exsolution Strategy

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Perovskite-based proton conducting membranes for hydrogen separation: A review

Cited by 99 publications

References 110 publications

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Study on hydrogen permeation of Ni‐BaZr 0.1 Ce 0.7 Y 0.2 O 3− δ asymmetric cermet membrane

Enhanced Hydrogen Permeability of Mixed Protonic–Electronic Conducting Membranes through an In‐Situ Exsolution Strategy

Contact Info

Product

Resources

About

Study on hydrogen permeation of Ni‐BaZr _0.1 Ce _0.7 Y _0.2 O _{3−
δ} asymmetric cermet membrane