Composite membrane by incorporating sulfonated graphene oxide in polybenzimidazole for high temperature proton exchange membrane fuel cells

Devrim, Yılser; Durmuş, Gizem Nur Bulanık

doi:10.1016/j.ijhydene.2021.12.257

Cited by 52 publications

(27 citation statements)

References 65 publications

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“…For instance, the PA contact angles of PFTP, SPFTP-50, and SPFTP-100 are 72, 41, and 36°, respectively. These results indicated that the introduction of sulfonate groups onto PFTP is beneficial for PA doping. , Owing to the increase in the grafting degree of the sulfonate groups, SPFTP-100 exhibited higher PA adsorption. The absorbed PA increases the distance between the polymer chains and leads to a high swelling ratio (SR) of the PEMs.…”

Section: Resultsmentioning

confidence: 85%

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Chen

et al. 2023

ACS Appl. Energy Mater.

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To produce proton exchange membranes (PEMs) with robust mechanical properties, poly(fluorenyl terphenyl piperidinium) (PFTP) with an aromatic backbone is synthesized. Sulfonated PFTP (SPFTP-x) is obtained by introducing propanesulfonic acid onto PFTP as a side chain to enhance its phosphoric acid (PA) adsorption capacity and proton conductivity. Both the PFTP and SPFTP-x membranes exhibit good thermal, oxidization, and dimensional stabilities owing to their rigid ether-free aromatic backbones. Because of the introduction of propanesulfonic acid side chains, the SPFTP-x membranes show higher PA adsorption capacity and higher proton conductivity than the PFTP membrane. The PA doping content of the SPFTP-x membranes is more than 160% at room temperature, and their conductivity can be up to 109.0 mS cm–1 at 160 °C under anhydrous condition. Furthermore, a single cell assembled with SPFTP-50 exhibits a maximum power density of 280 mW cm–2 at 100 °C. These results indicate that SPFTP-x is a promising membrane material for applications in high-temperature proton exchange membrane fuel cells.

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Section: Resultsmentioning

confidence: 85%

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Chen

et al. 2023

ACS Appl. Energy Mater.

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“…Zhang et al 132 developed magnetic graphene reinforced epoxy nanocomposites and found the hard structure of graphene nanoplatelets results in a greater free volume, which compromises the matrix's thermal stability. Prolongo et al 133 found that 0.5% by weight graphene nanoplatelets can raise the temperature of epoxy thermal deterioration from 377 C to 397 C. Both GO and reduced GO increase the thermal deterioration temperature of the epoxy matrix, according to Yousefi et al 134 Figure 10A depicts a shift in the TGA F I G U R E 1 0 (A) TGA curves for epoxy nanocomposite comprising GO as well as rGO, 134 (B) PBI as well as PBI/sGO composite membrane TGA curves 136 curve to a higher temperature, indicating increased thermal stability as a result of graphene integration.…”

Section: Thermal Stabilitymentioning

confidence: 90%

“…The loss of moisture absorbed by the phosphonic acid group of the composite membrane causes the initial loss beyond 200 C Thermal breakdown of the sulfonic acid group causes further loss, which starts around 250 C to 300 C The breakdown of the PBI's primary backbone accounts for the eventual loss of roughly 400 C. 135 The operational temperature range of HT-PEMFC is determined by the PBI/sGO membrane. 136 Functional graphene was integrated into an epoxy matrix by Wang et al 137 with Xin et al 138 who found a reduction in Td. This is owing to the inclusion of thermally unstable compounds when decomposed, resulting in a lower Td than monolithic epoxy.…”

Section: Thermal Stabilitymentioning

confidence: 99%

“…(A) TGA curves for epoxy nanocomposite comprising GO as well as rGO, 134 (B) PBI as well as PBI/sGO composite membrane TGA curves 136 …”

Section: Versatile Properties Of G‐c3n4 Cnt and Graphene‐based Membra...mentioning

confidence: 99%

“…The loss of moisture absorbed by the phosphonic acid group of the composite membrane causes the initial loss beyond 200°C Thermal breakdown of the sulfonic acid group causes further loss, which starts around 250°C to 300°C The breakdown of the PBI’s primary backbone accounts for the eventual loss of roughly 400°C 135 . The operational temperature range of HT‐PEMFC is determined by the PBI/sGO membrane 136 …”

Section: Versatile Properties Of G‐c3n4 Cnt and Graphene‐based Membra...mentioning

confidence: 99%

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Progress of g‐C ₃ N ₄ and carbon‐based material composite in fuel cell application

Harun

Shaari

Ramli

2022

Intl J of Energy Research

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Fuel cells are the most promising alternative green and clean energy source in the future because of their low carbon emissions. Fuel cells have been employed in various applications, including large-scale stationary power generation, distributed combination heat and power, transport, and mobile and stationary applications. Generally, a fuel cell system consists of a proton exchange membrane or polymer electrolyte membrane (PEM), a catalyst layer, a microporous layer, a gas diffusion layer, and a bipolar plate at the anode and cathode. PEMs are an important component in fuel cell applications that act as proton carriers and separators for the anode and cathode, while catalyst support materials are a major component of proton exchange membrane fuel cell. The membrane and catalyst affect the cost, durability, and electrochemical activity of fuel cells. Researchers have made serious attempts to develop materials that can reduce the cost of membrane and catalyst manufacturing, lowering the overall cost of fuel cells. Because of its unique features like 2D structure, ease of fabrication, and low production cost, graphitic carbon nitride (g-CN or g-C 3 N 4 ) is now frequently mentioned.Due to their exceptional qualities, carbon-based materials are also commonly used in a variety of applications, including fuel cells. The effectiveness of experiments using g-C 3 N 4 , carbon nanotube (CNT), and graphene as essential materials in enhancing fuel cell performance is discussed in this study. This review, primarily for fuel cell applications, discusses ways of adjusting the structure in terms of porosity, dimension tailoring, and atomic and edge functionalization. The study also involved the properties of composite materials as well as their respective applications on membranes as well as fuel cell catalysts. This review is useful for investigations into g-C 3 N 4 , CNT, and graphene because it offers ideas and direction for improving the potential of associated systems, including fuel cells, hydrogen production, solar cells, batteries, and supercapacitors.Abbreviations: CHP, combination heat and power; CNT, carbon nanotube; DMFC, direct methanol fuel cell; g-CN or g-C 3 N 4 , graphitic carbon nitride; MEA, membrane electrolyte assembly; ORR, oxygen reduction reaction; PEM, polymer electrolyte membrane; PEMFC, proton exchange membrane fuel cell; SPEEK, sulfonated poly (ether ether ketone).

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Infiltration of carbon-silicon composites into porous silicon by an electrochemical method

Ramírez-González

Briones

Conde

et al. 2023

J Mater Sci: Mater Electron

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Composite membrane by incorporating sulfonated graphene oxide in polybenzimidazole for high temperature proton exchange membrane fuel cells

Cited by 52 publications

References 65 publications

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Progress of g‐C ₃ N ₄ and carbon‐based material composite in fuel cell application

Infiltration of carbon-silicon composites into porous silicon by an electrochemical method

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Composite membrane by incorporating sulfonated graphene oxide in polybenzimidazole for high temperature proton exchange membrane fuel cells

Cited by 52 publications

References 65 publications

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Poly(fluorenyl terphenyl piperidinium) with Sulfonated Side Chains for the Application of High-Temperature Proton Exchange Membranes

Progress of g‐C 3 N 4 and carbon‐based material composite in fuel cell application

Infiltration of carbon-silicon composites into porous silicon by an electrochemical method

Contact Info

Product

Resources

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Progress of g‐C ₃ N ₄ and carbon‐based material composite in fuel cell application