Electrochemical stimuli-driven facile metal-free hydrogen evolution from pyrene-porphyrin-based crystalline covalent organic framework

Bhunia, S., Das, S.K., Jana, R., Peter, S.C., Bhattacharya, S., Addicoat, M. ORCID: 0000-0002-5406-7927, Bhaumik, A. and Pradhan, A., 2017. Electrochemical stimuli-driven facile metal-free hydrogen evolution from pyrene-porphyrin-based crystalline covalent organic framework. ACS Applied Materials & Interfaces. ISSN 1944-8244

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Abstract

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 framework (SB PORPy COF). The porphyrin and pyrene units are alternatively occupied in the vertex of 3D triclinic crystal having permanent micro-porosity with moderately high surface area (~869 m2g-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.

Item Type: Journal article
Publication Title: ACS Applied Materials & Interfaces
Creators: Bhunia, S., Das, S.K., Jana, R., Peter, S.C., Bhattacharya, S., Addicoat, M., Bhaumik, A. and Pradhan, A.
Publisher: American Chemical Society
Date: 26 June 2017
ISSN: 1944-8244
Identifiers:
NumberType
10.1021/acsami.7b06968DOI
Divisions: Schools > School of Science and Technology
Depositing User: Linda Sullivan
Date Added: 17 Jul 2017 10:06
Last Modified: 17 Jul 2017 10:09
URI: http://irep.ntu.ac.uk/id/eprint/31260

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