| Title |
Electrocatalytic Oxidation of 5-Hydroxymethylfurfural into the Monomer 2,5-Furandicarboxylic Acid using Mesostructured Nickel Oxide |
| ID_Doc |
8694 |
| Authors |
Holzhäuser, FJ; Janke, T; Öztas, F; Broicher, C; Palkovits, R |
| Title |
Electrocatalytic Oxidation of 5-Hydroxymethylfurfural into the Monomer 2,5-Furandicarboxylic Acid using Mesostructured Nickel Oxide |
| Year |
2020 |
| Published |
Advanced Sustainable Systems, 4.0, 10 |
| DOI |
10.1002/adsu.201900151 |
| Abstract |
Transforming biomass based compounds with renewable electrical energy into products presents a promising approach towards development of a circular economy. Herein, 5-hydroxymethylfurfural (HMF), derivable from cellulose and hemicellulose, is successfully electrochemically converted into 2,5-furandicarboxylic acid (FDCA). The reactions are performed in alkaline aqueous solutions using commercial nickel oxide (NiO) or a mesostructured nickel oxide derived by CMK-1 templating (NiO-CMK-1). Both catalytic activity and the selectivity of FDCA are highly dependent on the catalyst structure. NiO-CMK-1 facilitates multiple times higher FDCA selectivity (>80%) compared with commercial NiO (30%). Electrochemical analyses emphasize a net-current density for NiO of 2 mA cm(-2)whereas for NiO-CMK-1 the net-current density increases significantly to above 4 mA cm(-2). The exposed material surface and structure of the catalysts are analyzed via nitrogen physisorption and powder X-ray diffraction revealing that both NiO and NiO-CMK-1 possess a face-centered cubic crystal structure but distinctly different exposed surface areas. Since NiO-CMK-1 enables remarkably improved catalytic activity for the oxidation of HMF, a recycling study is conducted with five consecutive catalytic cycles emphasizing the technological potential of this approach. |
| Author Keywords |
5-hydroxymehtylfurfural; biomass; conversion; electrochemical; electrolysis |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000566934300001 |
| WoS Category |
Green & Sustainable Science & Technology; Materials Science, Multidisciplinary |
| Research Area |
Science & Technology - Other Topics; Materials Science |
| PDF |
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/adsu.201900151
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