Thin pore-filling membrane with highly packed-acid structure for high temperature and low humidity operating polymer electrolyte fuel cells

A Review of Nanostructured Ion‐Exchange Membranes

“…[78] Rather than just depending on the self-assembly of polyelectrolytes, discussed earlier in this review, several membrane researchers have also confirmed the pore-filling strategy as a suitable route to get the desired performance-stability benefits. [79][80][81][82] Pore-filling with ion conductive polyelectrolytes produces nanoscale ion transport channels in stable substrate www.advmattechnol.de membranes (Figure 9). [82][83][84] First, a gel-type poly(acrylamidetert-butyl sulfonic acid) was filled within the pores of crosslinked high-density polyethylene (HDPE) and polyimide substrate membranes by Yamaguchi et al [85] Later the post crosslinking methods were adopted to avoid leaching and swelling of the filled electrolytes.…”

“…[79][80][81][82] Pore-filling with ion conductive polyelectrolytes produces nanoscale ion transport channels in stable substrate www.advmattechnol.de membranes (Figure 9). [82][83][84] First, a gel-type poly(acrylamidetert-butyl sulfonic acid) was filled within the pores of crosslinked high-density polyethylene (HDPE) and polyimide substrate membranes by Yamaguchi et al [85] Later the post crosslinking methods were adopted to avoid leaching and swelling of the filled electrolytes. [84,86] Although, the current research work on pore-filled membranes confirm successful pore-filling, stabilization of the filled electrolytes, and circumvention of the excessive membrane swelling.…”

Carbon nanotube, graphene oxide and montmorillonite as conductive fillers in polymer electrolyte membrane for fuel cell: an overview

“…The cell performance is operating normally at 80‐120°C, as in order to render maintained stability of the membrane at the dehydrated condition. Many studies have worked on PEM of resistance to heat 82 during the cell performance, including low relative humidity conditions 83 . The membrane performance test comprises variables like water uptake, degree of swelling ratio, mechanical properties, and thermal stability.…”

“…The improvement in swelling ratio, as well as the water uptake (23.56 ± 0.8%), was attributed to the crosslinking that happened in the Nafion membrane and the hydrophilic region formation caused by the presence of sulfonic group (‐SO 3 H) ionic interaction. Oshiba et al 82 investigated the polymer electrolyte fuel cells (PEFCs) for generating MEAs that could work at high temperatures and low relative humidity. The study synthesized a pore‐filling membrane which consists of low equal weight perfluorosulfonic acid (PFSA) polymer and a mechanically strong thin ultra‐high molecular weight polyethylene porous substrate.…”

High performance cation exchange membranes synthesized via in situ emulsion polymerization without organic solvents and corrosive acids

“…37,38 In addition, in some cases, in order to induce crosslinking, additional procedures such as annealing treatment are necessary. 39,40 In this work, a new methodology is developed to synthesize high performance CEMs in an effective and environmentfriendly way (Scheme 1). This methodology includes avoiding the use of organic solvents and strong acids, reducing the use of unnecessary chemicals, and realizing rapid synthesis via optimizing preparation procedures.…”