TY - JOUR
T1 - Crystalline Porous Organic Polymer Bearing -SO3H Functionality for High Proton Conductivity
AU - Bhanja, Piyali
AU - Palui, Arnab
AU - Chatterjee, Sauvik
AU - Kaneti, Yusuf Valentino
AU - Na, Jongbeom
AU - Sugahara, Yoshiyuki
AU - Bhaumik, Asim
AU - Yamauchi, Yusuke
PY - 2020
Y1 - 2020
N2 - Designing high-performing proton-conducting materials with in-built -SO3H moieties in the crystalline organic framework is very challenging in the context of developing an efficient solid electrolyte for fuel cells. Herein, we report a simple chemical route for synthesizing crystalline microporous sulfonic acid-functionalized porous organic polymers (MPOPS-1) via extended condensation polymerization between two organic monomers (i.e., cyanuric chloride and 2,5-diaminosulfonic acid) under refluxing conditions. The crystal structure of this organic framework has been indexed from powder X-ray diffraction data, revealing a monoclinic phase with a unit cell volume of 1627 Å3. The presence of in-built sulfonic acid groups in MPOPS-1 contributes significantly to the high proton conductivity of this porous organic polymer. The resulting MPOPS-1 displays proton conductivities of 1.49 × 10-5 and 3.07 × 10-2 S cm-1 at 350 K temperature under anhydrous and humid conditions, respectively, outperforming many previously reported porous organic polymers.
AB - Designing high-performing proton-conducting materials with in-built -SO3H moieties in the crystalline organic framework is very challenging in the context of developing an efficient solid electrolyte for fuel cells. Herein, we report a simple chemical route for synthesizing crystalline microporous sulfonic acid-functionalized porous organic polymers (MPOPS-1) via extended condensation polymerization between two organic monomers (i.e., cyanuric chloride and 2,5-diaminosulfonic acid) under refluxing conditions. The crystal structure of this organic framework has been indexed from powder X-ray diffraction data, revealing a monoclinic phase with a unit cell volume of 1627 Å3. The presence of in-built sulfonic acid groups in MPOPS-1 contributes significantly to the high proton conductivity of this porous organic polymer. The resulting MPOPS-1 displays proton conductivities of 1.49 × 10-5 and 3.07 × 10-2 S cm-1 at 350 K temperature under anhydrous and humid conditions, respectively, outperforming many previously reported porous organic polymers.
KW - Brønsted acidity
KW - microporosity
KW - porous organic polymer
KW - proton conductivity
KW - sulfonic acid groups
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U2 - 10.1021/acssuschemeng.9b06234
DO - 10.1021/acssuschemeng.9b06234
M3 - Article
AN - SCOPUS:85079524962
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
SN - 2168-0485
ER -