Sulfonated poly(phenylsulfone)/fluorinated polybenzoxazole nanofiber composite membranes for proton exchange membrane fuel cells

Li, Guang; Hao, Rongrong; He, Xingyu; Li, Guang

doi:10.1016/j.ijhydene.2015.04.075

Cited by 20 publications

(4 citation statements)

References 19 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The review of literature show that the proton conductivity of SPEEK nanofibrous membrane in this study are comparable with the other PEMs and can be used for fuel cell applications. The highest proton conductivity achieved in this study (0.0907 S/cm for aligned SPEEK nanofibers at DS of 81%) is competitive with commercial Nafion112 membrane (the proton conductivity of ∼0.08–0.1 S/cm ) which has approximately similar thickness with fabricated nanofibrous membranes.…”

Section: Resultssupporting

confidence: 54%

Aligned electrospun sulfonated polyetheretherketone nanofiber based proton exchange membranes for fuel cell applications

Sadrjahani

Javanbakht

2016

Polym Eng Sci

View full text Add to dashboard Cite

In this study, electrospinning of sulfonated poly(ether ether ketone) (SPEEK) at different degrees of sulfonation (DS) was investigated. The polymer solution concentration of 22 wt% was obtained to collect smooth fiber in nanoscale range of 112 to 131 nm at various conditions. SEM observations of SPEEK nanofibers showed the decrease of diameter with increasing DS from 74% to 81%, mainly due to the increase of electrical conductivity of polymer solution at higher DS. The increase of collecting speed from 20 to 305 m/min decreased the diameter of nanofibers slightly and improved their alignment. The presence of SO3H groups in collected nanofibers was demonstrated with FT‐IR analysis. WAXD patterns of SPEEK nanofibers indicated featureless amorphous peak with no crystalline regions that was broaden at higher DS and aligned nanofibers. The electrochemical impedance spectroscopy of SPEEK nanofibers showed the through‐plane proton conductivity of fully hydrated nanofibrous membranes measured at room temperature were improved with DS. The proton conductivity of randomly oriented and aligned nanofibers were measured from 0.0098 to 0.0722 S/cm and from 0.0592 to 0.0907 S/cm, respectively. Aligned nanofibers exhibited more proton conductivity than randomly collected nanofibers. POLYM. ENG. SCI., 57:789–796, 2017. © 2016 Society of Plastics Engineers

show abstract

Section: Resultssupporting

confidence: 54%

Aligned electrospun sulfonated polyetheretherketone nanofiber based proton exchange membranes for fuel cell applications

Sadrjahani

Javanbakht

2016

Polym Eng Sci

View full text Add to dashboard Cite

show abstract

“…TGA analysis showed good thermal and mechanical stability for this membrane. Jin et al produce sulfonated poly(phenylsulfone) (SPPSU) composite membranes which fluorinated polybenzoxazole (6F‐PBO) nanofiber as great filler and the morphology . Table presents the filler used in polymer electrolyte membrane.…”

Section: Additives In Different Types Of Membranesmentioning

confidence: 99%

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

2019

View full text Add to dashboard Cite

Summary Additives such as fillers, cross‐linkers, and plasticizers have become increasingly important in the polymer nanocomposite production field, especially for enhancing the structural morphology, functional behavior, and final performance of nanocomposites in broad applications. The current work is an overview of the effects of additive substances such as fillers, cross‐linkers, and plasticizers in the polymer electrolyte membrane composites applied to fuel cells. A comparative review is conducted by categorizing fillers into several types, and the most popular cross‐linkers and plasticizers used in fuel cell membranes are included in this review. The highlighted properties include the proton conductivity, permeability, mechanical properties, thermal properties, crystallinity, and structure of additive‐modified nanocomposites. Furthermore, the challenges and future prospects in the additive field are discussed in Section 5.0. This review can provide a reference for researchers seeking specific substances that can be used to enhance nanocomposite properties, especially in membrane fuel cell applications.

show abstract

“…An overview of membranes incorporating inert electrospun nanofibres is shown in Table 1. Typical polymers that have been used to produce electrospun reinforcements include polyvinylidene fluoride (PVDF), polyvinyl alcohol (PVA), polystyrene (PS), polysulfone (PSU and polyimide (PI) [63][64][65][66][67][68][69][70][71][72][73][74][75].…”

Section: Composite Membranes Comprising An Electrospun Mat Of Unchargmentioning

confidence: 99%

Electrospun nanofibre composite polymer electrolyte fuel cell and electrolysis membranes

et al. 2016

View full text Add to dashboard Cite

International audienceLarge-scale commercialisation of Proton Exchange Membrane Fuel Cell (PEMFC) technology for automotive and stationary applications demands the development of a robust, durable and cost-effective materials. In this regard, ionomer membranes being present at the core of PEMFCs are required to maintain elevated proton conductivity, high mechanical strength and low gas permeability during the lifespan of the fuel cell. These challenges are addressed by investigating novel nano-structured membrane materials possessing long-range spatial organisation of ionic and hydrophobic domains at the micro-and nano-scales. Electrospinning, a versatile and easily up-scalable tool for the preparation of nanofibrous polymers and ceramics with targeted architectures, is being extensively applied for the development of nanostructured electrolyte membranes. This review describes the most important advances in the use of electrospun materials for the preparation of new generation fuel cell proton conducting membranes. It also highlights the challenges to be overcome and the new directions and future application fields of composite nanofibre-based membranes in the broader context of energy materials

show abstract

Sulfonated poly(phenylsulfone)/fluorinated polybenzoxazole nanofiber composite membranes for proton exchange membrane fuel cells

Cited by 20 publications

References 19 publications

Aligned electrospun sulfonated polyetheretherketone nanofiber based proton exchange membranes for fuel cell applications

Aligned electrospun sulfonated polyetheretherketone nanofiber based proton exchange membranes for fuel cell applications

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

Electrospun nanofibre composite polymer electrolyte fuel cell and electrolysis membranes

Contact Info

Product

Resources

About