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Avoiding Pitfalls in Comparison of Activity and Selectivity of Solid Catalysts for Electrochemical HMF Oxidation

Wöllner, Sebastian ; Nowak, Timothy ; Zhang, Gui‐Rong ; Rockstroh, Nils ; Ghanem, Hanadi ; Rosiwal, Stefan ; Brückner, Angelika ; Etzold, Bastian J. M. (2024)
Avoiding Pitfalls in Comparison of Activity and Selectivity of Solid Catalysts for Electrochemical HMF Oxidation.
In: ChemistryOpen, 2021, 10 (5)
doi: 10.26083/tuprints-00020143
Artikel, Zweitveröffentlichung, Verlagsversion

Es ist eine neuere Version dieses Eintrags verfügbar.

URL / URN: https://tuprints.ulb.tu-darmstadt.de/20143

Kurzbeschreibung (Abstract)

Electrocatalytic oxidation of 5‐hydroxymethylfurfural (HMF) offers a renewable approach to produce the value‐added platform chemical 2,5‐furandicarboxylic acid (FDCA). The key for the economic viability of this approach is to develop active and selective electrocatalysts. Nevertheless, a reliable catalyst evaluation protocol is still missing, leading to elusive conclusions on criteria for a high‐performing catalyst. Herein, we demonstrate that besides the catalyst identity, secondary parameters such as materials of conductive substrates for the working electrode, concentration of the supporting electrolyte, and electrolyzer configurations have profound impact on the catalyst performance and thus need to be optimized before assessing the true activity of a catalyst. Moreover, we highlight the importance of those secondary parameters in suppressing side reactions, which has long been overlooked. The protocol is validated by evaluating the performance of free‐standing Cu‐foam, and CuCoO modified with NaPO₂H₂ and Ni, which were immobilized on boron‐doped diamond (BDD) electrodes. Recommended practices and figure of merits in carefully evaluating the catalyst performance are proposed.

Typ des Eintrags:

Artikel

Erschienen:

2024

Autor(en):

Wöllner, Sebastian ; Nowak, Timothy ; Zhang, Gui‐Rong ; Rockstroh, Nils ; Ghanem, Hanadi ; Rosiwal, Stefan ; Brückner, Angelika ; Etzold, Bastian J. M.

Art des Eintrags:

Zweitveröffentlichung

Titel:

Avoiding Pitfalls in Comparison of Activity and Selectivity of Solid Catalysts for Electrochemical HMF Oxidation

Sprache:

Englisch

Publikationsjahr:

13 Februar 2024

Ort:

Darmstadt

Publikationsdatum der Erstveröffentlichung:

2021

Ort der Erstveröffentlichung:

Weinheim

Verlag:

Wiley-VCH

Titel der Zeitschrift, Zeitung oder Schriftenreihe:

ChemistryOpen

Jahrgang/Volume einer Zeitschrift:

(Heft-)Nummer:

DOI:

10.26083/tuprints-00020143

URL / URN:

https://tuprints.ulb.tu-darmstadt.de/20143

Zugehörige Links:

Verlags-DOI

Herkunft:

Zweitveröffentlichung DeepGreen

Kurzbeschreibung (Abstract):

Alternatives oder übersetztes Abstract:

Alternatives Abstract

Sprache

Proposal of a measurement protocol for comparison of electrocatalysts for the HMF oxidation with standard evaluation (yield, faradaic efficiency), as well as a new figure of merit (production rate) to compare catalysts independent from setup size. Additionally, the alkaline degradation of HMF is evaluated and taken into account for closing the mass balance in order to assess the true catalyst activity.

Englisch

Freie Schlagworte:

comparison of electrocatalysts, electrocatalysis, HMF oxidation, measurement protocol

Status:

Verlagsversion

URN:

urn:nbn:de:tuda-tuprints-201437

Zusätzliche Informationen:

This article also appears in: International Year of Basic Sciences for Sustainable Development

Sachgruppe der Dewey Dezimalklassifikatin (DDC):

600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie

Fachbereich(e)/-gebiet(e):