首页|Electrokinetic-mechanism of water and furfural oxidation on pulsed laser-interlaced Cu2O and CoO on nickel foam

Electrokinetic-mechanism of water and furfural oxidation on pulsed laser-interlaced Cu2O and CoO on nickel foam

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The electrocatalytic oxidation of biomass-derived furfural(FF)feedstocks into 2-furoic acid(FA)holds immense industrial potential in optics,cosmetics,polymers,and food.Herein,we fabricated CoO/NiO/nickel foam(NF)and Cu2O/NiO/NF electrodes via in situ pulsed laser irradiation in liquids(PLIL)for the bifunctional electrocatalysis of oxygen evolution reaction(OER)and furfural oxidation reaction(FOR),respectively.Simultaneous oxidation of NF surface to NiO and deposition of CoO and/or Cu2O on NF during PLIL offer distinct advantages for enhancing both the OER and FOR.CoO/NiO/NF electrocatalyst provides a consistently low overpotential of～359 mV(OER)at 10 mA/cm2,achieving the maximum FA yield(～16.37 mM)with 61.5％selectivity,79.5％carbon balance,and a remarkable Faradaic efficiency of～90.1％during 2 h of FOR at 1.43 V(vs.reversible hydrogen electrode).Mechanistic pathway via in situ electrochemical-Raman spectroscopy on CoO/NiO/NF reveals the involvement of phase transition inter-mediates(NiOOH and CoOOH)as surface-active centers during electrochemical oxidation.The carbonyl carbon in FF is attacked by hydroxyl groups to form unstable hydrates that subsequently undergo further oxidation to yield FA products.This method holds promise for large-scale applications,enabling simulta-neous production of renewable building materials and fuel.

Pulsed laser irradiation in liquidsWater and furfural oxidationIn situ Raman spectroscopyCoO/NiO/nickel foamCu2O/NiO/nickel foam2-furoic acid

Yewon Oh、Jayaraman Theerthagiri、M.L.Aruna Kumari、Ahreum Min、Cheol Joo Moon、Myong Yong Choi

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Department of Chemistry(BK21 FOUR),Research Institute of Natural Sciences,Gyeongsang National University,Jinju 52828,Republic of Korea

Department of Chemistry,The Oxford College of Science,Bengaluru,Karnataka 560102,India

Core-Facility Center for Photochemistry & Nanomaterials,Gyeongsang National University,Jinju 52828,Republic of Korea

Korea Basic Science Institute(National Research Facilities and Equipment Center)grant funded by the Ministry of EducationKorea Basic Science Institute(National Research Facilities and Equipment Center)grant funded by the Ministry of EducationNational Research Foundation of Korea(NRF)National Research Foundation of Korea(NRF)National Research Foundation of Korea(NRF)National Research Foundation of Korea(NRF)National Research Foundation of Korea(NRF)

2019R1A6C10100422021R1A6C103A4272022R1A2C20106862022R1A4A30335282021R1I1A1A010603802021R1C1C20107262019H1D3A1A01071209

2024

10.1016/j.jechem.2023.12.023

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.91(4)
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