Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 28, Pages 23843-23851Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b06968
Keywords
covalent organic framework; porosity; hydrogen evolution reaction; electrochemical; metal free; porphyrin based
Funding
- CSER
- UGC
- DST through INSPIRE program
- DST
- DRU at IACS
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A [2 + 2] Schiff base type condensation between 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAP) and 1,3,6,8-tetrakis (4-formylphenyl) pyrene (TFFPy) under solvothermal condition yields a crystalline, quasi-two-dimensional covalent organic frainework. (SB-PORPy-COF). The porphyrin and pyrene units are alternatively occupied in the vertex of 3D triclinic crystal having permanent microporosity with moderately high surface area (similar to 869 m(2) g(-1)) and promising chemical stability. The AA stacking of the monolayers give a pyrene bridged conducting channel. SB-PORPy-COF has been exploited for metal free hydrogen production to understand the electrochemical behavior using the imine based docking site in acidic media. SB-PORPy-COF has shown the onset potential of 50 mV and the Tafel slope of 116 mV dec(-1). We expect that the addendum of the imine based COF would not only enrich the structural variety but also help to understand the electrochemical behavior of these class of materials.
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