Aqueous OH - /H + dual-ion gradient assisted electricity effective electro-organic synthesis of 2,5-furandicarboxylic acid paired with hydrogen fuel generation.

Autor: Sur S; Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Ward No. 8, NCL Colony, Pashan, Pune, Maharashtra 411008, India., Mondal R; Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Ward No. 8, NCL Colony, Pashan, Pune, Maharashtra 411008, India., Thimmappa R; Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Ward No. 8, NCL Colony, Pashan, Pune, Maharashtra 411008, India., Mukhopadhyay S; Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Ward No. 8, NCL Colony, Pashan, Pune, Maharashtra 411008, India., Thotiyl MO; Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Ward No. 8, NCL Colony, Pashan, Pune, Maharashtra 411008, India. Electronic address: musthafa@iiserpune.ac.in.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2023 Jan 15; Vol. 630 (Pt A), pp. 477-483. Date of Electronic Publication: 2022 Oct 14.
DOI: 10.1016/j.jcis.2022.10.007
Abstrakt: The OH - /H + dual-ion gradient has a hidden electromotive force of 0.82 V under standard conditions; however, its non-redox nature completely prevents its direct interconversion as electrical driving force. We show by using organic molecules whose heterogeneous electron transfer is pH dependent, OH - /H + dual-ion energy can be directly harvested as electrical driving force for performing simultaneous electro-organic synthesis and hydrogen fuel production in an electricity effective manner. To demonstrate this dual-ion gradient assisted electro-organic synthesis, 5-hydroxymethylfurfural (HMF) is chosen as the model molecule because of the immense techno commercial applications of its oxidized products. This dual-ion assisted device only required ∼1 V to provide a current density of 50 mA/cm 2 and for achieving the same rate; the traditional state-of-the-art electrolytic cell required a doubling of the applied potential. The dual-ion gradient assisted device can convert biomass-derived HMF to economically important FDCA with ∼90 % yield and ∼87 % Faradaic efficiency with simultaneous H 2 fuel production at a potential as low as 1 V.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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