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Role of MIL-53(Fe)/hydrated–dehydrated MOF catalyst for electrochemical hydrogen evolution reaction (HER) in alkaline medium and photocatalysis

Ravi Nivetha, Pratap Kollu, Krishna Chandar, Sudhagar Pitchaimuthu Orcid Logo, Soon Kwan Jeong, Andrews Nirmala Grace

RSC Advances, Volume: 9, Issue: 6, Pages: 3215 - 3223

Swansea University Author: Sudhagar Pitchaimuthu Orcid Logo

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DOI (Published version): 10.1039/c8ra08208a

Abstract

The role of breathing behavior in hydrated and dehydrated forms of MIL-53(Fe) is investigated here. The material can be used as an efficient electrocatalyst and photocatalyst for a hydrogen evolution reaction (HER) in an alkaline medium and the same was further tested for the degradation of organic...

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Published in: RSC Advances
ISSN: 2046-2069
Published: Royal Society of Chemistry (RSC) 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa48819
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Abstract: The role of breathing behavior in hydrated and dehydrated forms of MIL-53(Fe) is investigated here. The material can be used as an efficient electrocatalyst and photocatalyst for a hydrogen evolution reaction (HER) in an alkaline medium and the same was further tested for the degradation of organic pollutants. The as-synthesized MIL-53(Fe)/hydrated and dehydrated forms were characterized by different analytical techniques to study their structure, morphology, surface analysis, thermal, physical and chemical properties. The breathing behavior of the hydrated and dehydrated forms of MIL-53(Fe) was studied through BET surface analysis. Our results show a low onset potential (−0.155 V and −0.175 V), Tafel slope (71.6 mV per decade, 88.7 mV per decade) and a large exchange current density (1.6 × 10−4 mA cm−2 and 2.5 × 10−4 mA cm−2). Hydrated and dehydrated MIL-53(Fe) degraded an RhB dye solution within 30 minutes thus proving their efficiency as efficient photocatalysts.
College: Faculty of Science and Engineering
Issue: 6
Start Page: 3215
End Page: 3223