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
N1 - Funding Information:
This research work was supported by the extramural project grant (file no. CRG/20l8/000230) through the Department of Science and Technology—Science and Engineering Research Board (DST-SERB), New Delhi. P.B. would like to thank the Japan Society for the Promotion of Science (JSPS) for providing the JSPS Postdoctoral Fellowship. S.C. would like to thank DST for INSPIRE senior research fellowship. This work was performed in part at the Queensland node of the Australian National Fabrication Facility (ANFF), a company established under the National Collaborative Research Infrastructure Strategy to provide nano and microfabrication facilities for Australia’s researchers.
Publisher Copyright:
© 2020 American Chemical Society.
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 -