Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 297, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2021.120396
Keywords
Electrochemistry; Oxidation; Hydrogen; 2,5-Bis(hydroxymethyl)furan; 2,5-Furandicarboxylic acid
Funding
- National Natural Science Foundation of China [22072170]
- Zhejiang Provincial Natural Science Foundation of China [LY19B030003, LQ19B060002]
- Ningbo Science and Technology Bureau [2018B10056, 2019B10096]
- Chinese Academy of Sciences [QYZDB-SSW-JSC037]
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This study successfully applied the more stable BHMF in an electrocatalytic system to produce FDCA and H-2 efficiently, demonstrating the potential for industrial applications. The use of CoOOH nanosheet electrocatalyst and continuous flow reactor highlighted the scalability and electrochemical durability for gram-level solid FDCA production.
Simultaneous production of value-added 2,5-furandicarboxylic acid (FDCA) and H-2 from the integrated 5-hydroxymethylfurfural (HMF) oxidation and hydrogen evolution reaction by electrocatalysis has drawn tremendous attention due to the significantly improved energy efficiency. However, HMF is not thermally and chemically stable enough to often cause heavy degradation, impeding its storage and industrialization. In this work, a more stable furan molecule, 2,5-bis(hydroxymethyl)furan (BHMF), was employed as the reaction substrate into the coupling system for the first time. By means of facile electrodeposition and subsequent oxidative activation, the standing CoOOH nanosheet electrocatalyst was fabricated to realize a complete BHMF conversion with 90.2 % FDCA yield and 100 % current efficiency for H-2 evolution. The reaction path and apparent activation energies were therefore discussed. Scalable properties and electrochemical durability of CoOOH were evaluated in a continuous flow reactor to harvest gram-level solid FDCA, highlighting the prospect of green coupling electrolysis for industrial application.
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