Tuning the functionality of metal–organic frameworks (MOFs) for fuel cells and hydrogen storage applications

Wong, CS; Wong, Wai Yin; Sudarsono, Wulandhari; Loh, Kee Shyuan; Lim, Kean Long; Wu, Bo

doi:10.1007/s10853-023-08552-x

Cited by 11 publications

(3 citation statements)

References 188 publications

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“…311−313 Since the past decade, MOFs that exist in 1D, 2D, and 3D structures have also found their utilization in energy conversion devices such as fuel FCs. 314 MOF can also be used as a proton-conductive nanoadditive in the preparation of PEM to effectively promote PEM's proton conductivity due to its high surface area and interconnected pores, which provide pathways for proton transport. 315 Moreover, the elevated thermal, mechanical, and chemical strength of the MOFs uplifted the thermo-mechanical and chemical stability of the PEM.…”

Section: Speek/mof-based Additivesmentioning

confidence: 99%

“…Metal–organic frameworks (MOFs), also called coordination polymers (CPs), are a class of porous materials formed by linking inorganic metals and organic ligands or linkers and have distinguished properties of large crystallinity, high surface area, porosity, and thermal and mechanical stability. − MOFs are also flexible in nature and can be easily tuned by varying the metal atom, organic ligands, or postsynthesis modification processes. The surface area of MOFs (up to 10000 m 2 g –1 ) is higher than other porous materials like zeolites and AC, which makes them suitable for many applications such as gas storage and ion separation, catalysis, drug delivery, and sensing by designing their metal, linker, and pores. − Since the past decade, MOFs that exist in 1D, 2D, and 3D structures have also found their utilization in energy conversion devices such as fuel FCs . MOF can also be used as a proton-conductive nanoadditive in the preparation of PEM to effectively promote PEM’s proton conductivity due to its high surface area and interconnected pores, which provide pathways for proton transport .…”

Section: Factors Affecting Speek Performancementioning

confidence: 99%

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A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

Kamal,

Jaafar,

Khan

et al. 2024

Energy Fuels

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Due to rising energy demand and global warming, the world is shifting from nonrenewable energy to renewable sources, such as fuel cells (FCs), due to their high energy conversion efficiency and environmental friendliness. A proton exchange membrane fuel cell (PEMFC) is an environmentally friendly and efficient FC. It converts the chemical energy stored in hydrogen fuel into electrical energy. A polymer electrolyte membrane (PEM) is a core element of the membrane electrode assembly (MEA). It transfers a proton from the anode to cathode, restricts electron flow across the membrane surface, and prevents reactant mixing. Sulfonated poly(ether ether ketone) (SPEEK)-based membranes are effective PEMs as compared to commonly used Nafion membranes due to their excellent chemical, thermal, and mechanical stability as well as cost-effectiveness. However, it suffers from poor proton conductivity. Normally, the proton conductivity of SPEEK can be improved by enhancing the degree of sulfonation (DS) and temperature and reducing the relative humidity (RH). However, the high DS of SPEEK and temperature with low RH tend to reduce the mechanical strength of PEM, which consequently sacrifices the membrane's lifetime. Therefore, the design of efficient SPEEK PEMs requires further modifications to improve the proton conductivity and strength, which can simultaneously enhance single-cell performance and durability. Therefore, this article reviews the advancements and various strategies to achieve high-performance and long-lived SPEEK-based PEMs. First, the tuning of SPEEK was performed by varying the DS of SPEEK. Second, the progress of modifying SPEEK with inorganic nano additives and metal−organic frameworks (MOFs) was also discussed comprehensively. The review also summarizes the influence of electrically and magnetically aligned nanoparticles on FC performance and membrane durability. Thus, the present review paper can be used as a reference for controlling different parameters to develop both efficient and durable SPEEK-based PEMs that can potentially compete with Nafion-based membranes for FC applications.

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Section: Speek/mof-based Additivesmentioning

confidence: 99%

Section: Factors Affecting Speek Performancementioning

confidence: 99%

A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

Kamal,

Jaafar,

Khan

et al. 2024

Energy Fuels

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show abstract

“…5–7 The resistance of MOF structures to aggressive and redox-active environments allows one to use them as materials for batteries, 8 supercapacitors 9,10 and fuel cells. 11 In organic synthesis, MOFs may act not only as catalysts, but also as carriers or nanocontainers for reactive and volatile reactant molecules, making synthetic procedures more safe and green. In this area, significant progress has been observed in MOF-assisted bromination, 12,13 iodination, 14 and nitration by NO 2 captured in a zirconium MOF.…”

Section: Introductionmentioning

confidence: 99%

Preparation of sulfur–MOF composites and their application in the Willgerodt–Kindler reaction

Sokolov,

Kvetkin

2024

New J. Chem.

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Phosphoric Acid Electrolyte Uptake and Retention Analysis on UiO‐66‐NH₂ Polybenzimidazole Nanocomposite Membranes

Wu,

Choo,

et al. 2024

Fuel Cells

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High‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) have a major advantage over low‐temperature fuel cells due to their better tolerance to higher carbon monoxide content in the hydrogen feed, simpler fuel processing, and better heat management. However, a key challenge in the development of HT‐PEMFCs is the potential for acid leaching from phosphoric acid‐doped polybenzimidazole membranes, which can reduce overall fuel cell performance. This study investigates the effect of post‐synthetic modification of the UiO‐66‐NH2 metal–organic framework (MOF) on the acid electrolyte uptake and retention of MOF/poly(4,4ʹ‐diphenylether‐5,5ʹ‐bibenzimidazole) (OPBI) nanocomposite membranes. Thermogravimetric analysis (TGA) was used to correlate the membrane properties with acid uptake. This work revealed that the presence of MOF with functional groups that can form hydrogen bonds with phosphoric acid molecules was able to alleviate the acid retention in the OPBI membrane with lower acid uptake. TGA demonstrated that the lower bound moisture content in the nanocomposite membranes was correlated to the lower acid uptake. In addition, the thermal stability of the nanocomposite membranes was found to improve.

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Tuning the functionality of metal–organic frameworks (MOFs) for fuel cells and hydrogen storage applications

Cited by 11 publications

References 188 publications

A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

Preparation of sulfur–MOF composites and their application in the Willgerodt–Kindler reaction

Phosphoric Acid Electrolyte Uptake and Retention Analysis on UiO‐66‐NH₂ Polybenzimidazole Nanocomposite Membranes

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Tuning the functionality of metal–organic frameworks (MOFs) for fuel cells and hydrogen storage applications

Cited by 11 publications

References 188 publications

A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

A Critical Review of the Advancement Approach and Strategy in SPEEK-Based Polymer Electrolyte Membrane for Hydrogen Fuel Cell Application

Preparation of sulfur–MOF composites and their application in the Willgerodt–Kindler reaction

Phosphoric Acid Electrolyte Uptake and Retention Analysis on UiO‐66‐NH2 Polybenzimidazole Nanocomposite Membranes

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Product

Resources

About

Phosphoric Acid Electrolyte Uptake and Retention Analysis on UiO‐66‐NH₂ Polybenzimidazole Nanocomposite Membranes