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Highly Porous MIL-100(Fe) for the Hydrogen Evolution Reaction (HER) in Acidic and Basic Media

Ravi Nivetha, Kannan Gothandapani, Vimala Raghavan, George Jacob, Raja Sellappan, Preetam Bhardwaj, Sudhagar Pitchaimuthu Orcid Logo, Arunachala Nadar Mada Kannan, Soon Kwan Jeong, Andrews Nirmala Grace

ACS Omega, Volume: 5, Issue: 30, Pages: 18941 - 18949

Swansea University Author: Sudhagar Pitchaimuthu Orcid Logo

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Abstract

The present study reports the synthesis of a porous Fe-based MOF named MIL-100(Fe) by a modified hydrothermal method without the HF process. The synthesis gave a high surface area with the specific surface area calculated to be 2551 m2 g–1 and a pore volume of 1.407 cm3 g–1 with an average pore size...

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Published in: ACS Omega
ISSN: 2470-1343 2470-1343
Published: American Chemical Society (ACS) 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa55376
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Abstract: The present study reports the synthesis of a porous Fe-based MOF named MIL-100(Fe) by a modified hydrothermal method without the HF process. The synthesis gave a high surface area with the specific surface area calculated to be 2551 m2 g–1 and a pore volume of 1.407 cm3 g–1 with an average pore size of 1.103 nm. The synthesized electrocatalyst having a high surface area is demonstrated as an excellent electrocatalyst for the hydrogen evolution reaction investigated in both acidic and alkaline media. As desired, the electrochemical results showed low Tafel slopes (53.59 and 56.65 mV dec–1), high exchange current densities (76.44 and 72.75 mA cm–2), low overpotentials (148.29 and 150.57 mV), and long-term stability in both media, respectively. The high activity is ascribed to the large surface area of the synthesized Fe-based metal–organic framework with porous nature.
College: Faculty of Science and Engineering
Issue: 30
Start Page: 18941
End Page: 18949