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Electrochemical oxidation of 5-hydroxymethylfurfural on ternary metal-organic framework nanoarrays: enhancement from electronic structure modulation
The rational design and exploitation of highly active and stable catalysts for the electrochemical oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to valuable chemical 2,5-furandicarboxylic acid (FDCA), is of great significance. Herein, a ternary metal-organic framework nanoarray is in si...
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Published in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2021-06, Vol.9 (25), p.1427-14275 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The rational design and exploitation of highly active and stable catalysts for the electrochemical oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to valuable chemical 2,5-furandicarboxylic acid (FDCA), is of great significance. Herein, a ternary metal-organic framework nanoarray is
in situ
hydrothermally deposited on Ni foam
via
assembling of multiple metal ions (Co
2+
, Ni
2+
and Fe
2+
) and 2-amino-terephthalic acid. The integrated MOF composite can directly act as a catalytic electrode, which exhibits excellent electrocatalytic HMF oxidation activity with a high current density of 100 mA cm
−2
at a potential of only 1.35 V
vs.
RHE. More importantly, the constant potential electrolysis at 1.4 V
vs.
RHE in combination with chromatographic analysis reveals a high faradaic efficiency close to 100% towards the production of FDCA with a yield of 99.76%. The high electrocatalytic performance for HMF oxidation is attributed to the abundant accessible active sites of two-dimensional morphology and the optimized electronic structure of the intrinsic catalytic centers in MOFs. The present study sheds light on the rational design and synthesis of new MOF-based catalysts for biomass conversion and stimulate the extensive explorations of MOFs with tunable active sites for potential electrocatalysis applications.
A facile one-step solvothermal strategy has been developed for the
in situ
growth of ternary MOF nanoarrays onto Ni foam, which exhibits superior electrocatalytic activity and stability for the electrochemical 5-hydroxymethylfurfural oxidation. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/d1ta02464g |