Anion Exchange Membranes

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Dioxide Materials offer anion exchange membranes for all your electrochemical applications. After being activated in 1 M KOH, Sustainion® membranes are stable under a wide pH conditions. The newer grades exhibit enhanced compatibility with popular solvents such as propylene carbonate and acetonitrile thus opening up aqueous and certain non-aqueous flow battery applications.

X37T

$340

ligand: TMIM
Typical IEC: 1.2
pH: 2-13
Resistivity in 1M KOH: 0.2Ω-cm2
Resistivity in 0.01M KHCO3: 0.3Ω-cm2
  • Teflon reinforced for durability
  • Recommended for electrolyzers
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X37FA

$231

ligand: TMIM
Typical IEC: 1
pH: 2-14
Resistivity in 1M KOH: 0.15Ω-cm2
Resistivity in 0.01M KHCO3: 1.0Ω-cm2
  • Reduced Swelling
  • Recommended for electrolyzers
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TMIM=1,2,4,5-Tetramethyl-1H-imidazolium, MPIP= n-methyl piperidine. TMA=trimethylamine

Alkaline Ionomers

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We also offer several ionomers based on different ligand groups. XA-9 is our longstanding ionomer used in conjunction with our membranes by several independent parties and their results are published in high impact factor peer reviewed journal such as Nature and Science. Its properties along with newer grades possessing even higher IECs are listed below.

XB-7

$209

ligand: Triple Cation
Typical IEC: 2.2
pH range: 2-11
  • Designed for alkaline fuel cells
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MPIP-OH=n-methyl-4-piperidinol, triple-cation=1-(N′,N′-Dimethylamino)-6,11-(N,N,N-trimethylammonium) undecane bromide