Schuster, Jürgen ; Ukrainczyk, Neven ; Koenders, Eddie ; Stöckl, Markus (2023)
Geopolymer Based Electrodes as New Class of Material for Electrochemical CO₂ Reduction.
In: ChemElectroChem, 10 (20)
doi: 10.1002/celc.202300122
Article, Bibliographie

Abstract

To achieve a successful transition to a sustainable carbon and energy management, it is essential to both reduce CO₂ emissions and develop new technologies that utilize CO₂ as a starting substrate. In this study, we demonstrate for the first‐time the functionalization of geopolymer binder (GP) with Sn for electrochemical CO₂ reduction (eCO2RR) to formate. By substituting cement with Sn‐GP, we have merged CO₂ utilisation and emission reduction. Using a simple mixing procedure, we were able to obtain a pourable mortar containing 5 vol. % Sn‐powder. After hardening, the Sn‐GP electrodes were characterized for their mechanical and CO₂ electrolysis performance. In 10 h electrolyses, formate concentrations were as high as 22.7±0.9 mmol L⁻¹ with a corresponding current efficiency of 14.0±0.5 % at a current density of 20 mA cm⁻². Our study demonstrates the successful design of GP‐electrodes as a new class of hybrid materials that connect eCO2RR and construction materials.

Item Type:	Article
Erschienen:	2023
Creators:	Schuster, Jürgen ; Ukrainczyk, Neven ; Koenders, Eddie ; Stöckl, Markus
Type of entry:	Bibliographie
Title:	Geopolymer Based Electrodes as New Class of Material for Electrochemical CO₂ Reduction
Language:	English
Date:	16 October 2023
Place of Publication:	Weinheim
Publisher:	Wiley-VCH
Journal or Publication Title:	ChemElectroChem
Volume of the journal:	10
Issue Number:	20
Collation:	7 Seiten
DOI:	10.1002/celc.202300122
Corresponding Links:	TUprints secondary publication
Abstract:	To achieve a successful transition to a sustainable carbon and energy management, it is essential to both reduce CO₂ emissions and develop new technologies that utilize CO₂ as a starting substrate. In this study, we demonstrate for the first‐time the functionalization of geopolymer binder (GP) with Sn for electrochemical CO₂ reduction (eCO2RR) to formate. By substituting cement with Sn‐GP, we have merged CO₂ utilisation and emission reduction. Using a simple mixing procedure, we were able to obtain a pourable mortar containing 5 vol. % Sn‐powder. After hardening, the Sn‐GP electrodes were characterized for their mechanical and CO₂ electrolysis performance. In 10 h electrolyses, formate concentrations were as high as 22.7±0.9 mmol L⁻¹ with a corresponding current efficiency of 14.0±0.5 % at a current density of 20 mA cm⁻². Our study demonstrates the successful design of GP‐electrodes as a new class of hybrid materials that connect eCO2RR and construction materials.
Alternative Abstract:	Alternative abstract Language Geoploymers for CO₂ reduction: Geoploymers offer great potential for reducing CO₂ emissions in the construction sector by replacing ordinary cement. Here, we successfully functionalized a geopolymer with tin and applied the hybrid material as an electrode for CO₂ electrolysis. The results show current efficiencies of up to 14 % for formate production. English
Uncontrolled Keywords:	electrochemical CO₂ reduction, formate, geopolymer electrode, Sn-functionalization, new electrode material
Identification Number:	Artikel-ID: e202300122
Classification DDC:	600 Technology, medicine, applied sciences > 624 Civil engineering and environmental protection engineering 600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions:	13 Department of Civil and Environmental Engineering Sciences 13 Department of Civil and Environmental Engineering Sciences > Institute of Construction and Building Materials
Date Deposited:	22 May 2024 06:47
Last Modified:	22 May 2024 06:47
PPN:
Export:	JSONEP3 XMLRDF+XMLDublin CoreAtomT2T_XMLSimple MetadataMODSHTML CitationIBW_RDAEndNoteBibTeXMultiline CSVASCII Citation
Suche nach Titel in:	TUfind oder in Google

Available Versions of this Item

• Geopolymer Based Electrodes as New Class of Material for Electrochemical CO₂ Reduction. (deposited 21 May 2024 13:54)
  • Geopolymer Based Electrodes as New Class of Material for Electrochemical CO₂ Reduction. (deposited 22 May 2024 06:47) [Currently Displayed]

Send an inquiry

Options (only for editors)

Show editorial Details