Journal Article

FZJ-2021-03706

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electroreductive 5‐Hydroxymethylfurfural Dimerization on Carbon Electrodes

Kloth, R. (Corresponding author)FZJ* ; Vasilyev, D. V.FZJ* ; Mayrhofer, K. J. J.FZJ* ; Katsounaros, I.FZJ*

2021
Wiley-VCH Weinheim

This record in other databases:      

Please use a persistent id in citations: http://hdl.handle.net/2128/29352  doi:10.1002/cssc.202101575

Abstract: Green fuel: The electrohydrodimerization of biomass-based 5-hydroxymethlfurfural to the fuel precursor 5,5’-bis(hydroxymethyl)hydrofuroin on carbon electrodes is a promising pathway towards renewable fuels. The effect of the hybridization of the carbon electrode on the HMF electroreduction activity and selectivity is studied, as well as the influence of applied potential and initial HMF concentration. The electrochemical conversion of biomass-based compounds to fuels and fuel precursors can aid the defossilization of the transportation sector. Herein, the electrohydrodimerization of 5-hydroxymethylfurfural (HMF) to the fuel precursor 5,5’-bis(hydroxymethyl)hydrofuroin (BHH) was investigated on different carbon electrodes. Compared to boron-doped diamond (BDD) electrodes, on glassy carbon (GC) electrodes a less negative HMF reduction onset potential and a switch in product selectivity from BHH to the electrocatalytic hydrogenation product 2,5-di(hydroxymethyl)furan (DHMF) with increasing overpotential was found. On BDD, the electrohydrodimerization was the dominant process independent of the applied potential. An increase in the initial HMF concentration led to suppression of the competing hydrogen evolution reaction and DHMF formation, resulting in higher BHH faradaic efficiencies. In contrast, BHH selectivity decreased with higher initial HMF concentration, which was attributed to increased electrochemically induced HMF degradation. Finally, it was demonstrated that even a simple graphite foil can function as an active HMF electroreduction catalyst.

---

Contributing Institute(s):

1. Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien (IEK-11)

Research Program(s):

1. 1232 - Power-based Fuels and Chemicals (POF4-123) (POF4-123)

Appears in the scientific report 2021

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---