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Bio‐inspired proton conducting phytagel derived zwitterionic complex membranes for fuel cells
Author(s) -
Karuppasamy K.,
Vikraman Dhanasekaran,
Jang KyuWon,
Ravi Seenu,
Tanveer Waqas Hassan,
Bose Ranjith,
Thandavarayan Maiyalagan,
Kim HyunSeok
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5386
Subject(s) - proton exchange membrane fuel cell , membrane , conductivity , proton , materials science , electrolyte , relative humidity , chemical engineering , polymer , polymer chemistry , composite number , chemistry , composite material , physics , electrode , thermodynamics , biochemistry , quantum mechanics , engineering
Summary This study proves synthesis of carbohydrate polymer phytagel based composite proton exchange membranes and employed for their applications in proton exchange membrane fuel cells. Phytagel was sulfonated using chlorosulfonic acid and corresponding composite membranes were prepared by loading different amounts of sulfamic acid (SA) to improve their proton conductivity. Incrementing SA into the sulfonated phytagel substantially boosted the swelling rate to a certain limit without affecting proton conductivity, or thermal and mechanical stabilities. Highest proton conductivity (1.49 × 10 −3 S cm −1 at 353 K) was achieved for 7 wt% SA. Single cell tests on this membrane unveiled an excellent performance at 60°C and 100% relative humidity (RH) compared with the other two membranes. Thus, this study offers may open new possibilities to utilize phytagel based bio‐composite solid polymer electrolytes as proton exchange membranes for fuel cell applications.