Metal sulfide enhanced metal–organic framework nanoarrays for electrocatalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid

Abstract

Electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is an efficient technique for producing bio-monomers needed for sustainable bio-polymer production. In this study, Ni/Co/Fe sulfide nanoclusters embedded in two-dimensional...

In situ transformation of Co-MOF nanorods into Co3S4/Ni3S2 nanotube arrays for electrochemical biomass upgrading

“…Besides the active sites of a catalyst, the geometry and configuration of a material affect the catalytic performance. 25,26 To expand the number of accessible catalytic active sites, materials in the form of one-dimensional (1D) hollow thinwalled nanotubes can provide large specific surface areas that would significantly enhance mass transport and charge diffusion. [27][28][29] Chen et al prepared well-aligned H-Ni@Al-Co-S nanotube arrays on carbon cloth as self-standing cathodes for asymmetric supercapacitors.…”

Interface engineering of a Ni9S8/MoS2/Ni3S2 heterostructure to boost biomass upgrading coupled with the hydrogen evolution reaction at large current densities

“…For the electrocatalytic reactions such as the HER, the OER, and biomass oxidative valorization, transition metal chalcogenides with distinctive electronic structures, diversity of valence states and high conductivity have been reported. 15 Ni-based sulfides have exhibited HMF oxidation activity and selectivity, [16][17][18][19][20][21][22][23][24][25][26][27][28][29] especially, Ni 3 S 2 shows electrocatalytic performance toward HMFOR due to its high valence state Ni 3+ species. However, the application of the Ni 3 S 2 electrocatalyst is limited by its less exposed reactive sites and slow ion transport.…”

“…27 Qi et al designed and synthesized 2D nanoarray MOFs combined with NiCoFe sulfide nanoclusters, which exhibited 100% HMF conversion, 99% FDCA yields and FE 99% at 1.39 V vs. RHE. 18 However, ternary metal sulfide heteromaterials are rarely reported for the electrocatalytic oxidation of HMF. 42 Therefore, it is still necessary to find a more suitable strategy to construct a heterojunction electrocatalyst for further improving the electrocatalytic oxidation performance for HMF.…”

MOF-derived interface-rich silver/silver oxide nano-structures as an effective electrocatalyst for oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid (FDCA) with spontaneous FDCA separation in acid media

“…22 Growing interest in FDCA is a result of its use as a monomer for the polymerization of biobased materials, including poly(ethylene 2,5-furan-dicarboxylate) (PEF). 23,24 As a renewable polymer, PEF is currently used to replace petroleum-derived polyethylene terephthalate (PET) in many applications. 25 Like PET, PEF uses FDCA instead of terephthalic acid in its structure.…”

“…Due to their high surface area, porosity, and tunable chemical compositions, metal-organic frameworks (MOFs) are attractive candidates for electrochemical applications. 48,49 However, the poor inherent conductivity of MOFs limits their use as electrodes. Therefore, carbonization at high temperatures is the most common tool for preparing advanced electrocatalysts using MOFs.…”