A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization

Shao Qing LIU; Min Rui GAO; Shuwen WU; Renfei FENG; Yicheng WANG; Linfang CUI; Ying GUO; Xian Zhu FU; Jing Li LUO

doi:10.1039/d3ee01999c

A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization

Shao Qing LIU, Min Rui GAO, Shuwen WU, Renfei FENG, Yicheng WANG, Linfang CUI, Ying GUO, Xian Zhu FU, Jing Li LUO^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

28 Citations (Scopus)

Abstract

Coupling the cathodic electrochemical CO₂ reduction (eCO₂RR) with the anodic electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) is an appealing approach to co-produce value-added chemicals and simultaneously lower the energy input, while the main challenge is to develop effective electrocatalysts for eCO₂RR and HMFOR. Inspired by the techno-economic analysis, we herein report a coupling system for economical formate generation and biomass valorization by concurrent cathodic eCO2RR and anodic HMFOR. Single Cu atom doped Bi (Cu₁Bi) and NiCo layer doubled hydroxides (NiCo LDHs) are used as the cathodic and anodic catalysts, respectively. Due to the accelerated water dissociation, the Cu₁Bi cathode catalyst demonstrated remarkably high activity (j_formate > 1 A cm⁻²) for formate conversion as well as robust stability (200 mA cm⁻² for 45 h). Meanwhile, the NiCo LDH anode displays high activity for HMF electrooxidation to 2,5-furandicarboxylic acid with a faradaic efficiency of over 95% at low potential. Consequently, the paired eCO2RR-HMFOR system reduces the electricity input for the eCO₂RR-to-formate conversion to ∼3493 kW h per tonne of formate, corresponding to 22.9% in energy saving compared to the conventional eCO₂RR (∼ 4528 kW h per tonne of formate). This study offers an appealing route for CO₂ reduction and biomass valorization with low energy consumption.

Original language	English
Pages (from-to)	5305-5314
Number of pages	10
Journal	Energy and Environmental Science
Volume	16
Issue number	11
Early online date	30 Sept 2023
DOIs	https://doi.org/10.1039/d3ee01999c
Publication status	Published - 1 Nov 2023
Externally published	Yes

Funding

This work was supported by the Natural Sciences and Engineering Research Council of Canada, Discovery Grant (GRPIN-2016-05494) and the Shenzhen Science and Technology Program (ZDSYS20220527171401003). As a part of the University of Alberta's Future Energy Systems research initiative, this research was made possible in part, thanks to funding from the Canada First Research Excellence Fund (CFREF-2015-00001). The authors acknowledge the VESPERS beamline of Canadian Light Source for the synchrotron characterization studies and Yang Chenyu from Shiyanjia Lab (www.shiyanjia.com) for XPS measurements.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/d3ee01999c

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title = "A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization",

abstract = "Coupling the cathodic electrochemical CO2 reduction (eCO2RR) with the anodic electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) is an appealing approach to co-produce value-added chemicals and simultaneously lower the energy input, while the main challenge is to develop effective electrocatalysts for eCO2RR and HMFOR. Inspired by the techno-economic analysis, we herein report a coupling system for economical formate generation and biomass valorization by concurrent cathodic eCO2RR and anodic HMFOR. Single Cu atom doped Bi (Cu1Bi) and NiCo layer doubled hydroxides (NiCo LDHs) are used as the cathodic and anodic catalysts, respectively. Due to the accelerated water dissociation, the Cu1Bi cathode catalyst demonstrated remarkably high activity (jformate > 1 A cm−2) for formate conversion as well as robust stability (200 mA cm−2 for 45 h). Meanwhile, the NiCo LDH anode displays high activity for HMF electrooxidation to 2,5-furandicarboxylic acid with a faradaic efficiency of over 95% at low potential. Consequently, the paired eCO2RR-HMFOR system reduces the electricity input for the eCO2RR-to-formate conversion to ∼3493 kW h per tonne of formate, corresponding to 22.9% in energy saving compared to the conventional eCO2RR (∼ 4528 kW h per tonne of formate). This study offers an appealing route for CO2 reduction and biomass valorization with low energy consumption.",

author = "LIU, {Shao Qing} and GAO, {Min Rui} and Shuwen WU and Renfei FENG and Yicheng WANG and Linfang CUI and Ying GUO and FU, {Xian Zhu} and LUO, {Jing Li}",

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T1 - A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization

AU - LIU, Shao Qing

AU - GAO, Min Rui

AU - WU, Shuwen

AU - FENG, Renfei

AU - WANG, Yicheng

AU - CUI, Linfang

AU - GUO, Ying

AU - FU, Xian Zhu

AU - LUO, Jing Li

PY - 2023/11/1

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N2 - Coupling the cathodic electrochemical CO2 reduction (eCO2RR) with the anodic electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) is an appealing approach to co-produce value-added chemicals and simultaneously lower the energy input, while the main challenge is to develop effective electrocatalysts for eCO2RR and HMFOR. Inspired by the techno-economic analysis, we herein report a coupling system for economical formate generation and biomass valorization by concurrent cathodic eCO2RR and anodic HMFOR. Single Cu atom doped Bi (Cu1Bi) and NiCo layer doubled hydroxides (NiCo LDHs) are used as the cathodic and anodic catalysts, respectively. Due to the accelerated water dissociation, the Cu1Bi cathode catalyst demonstrated remarkably high activity (jformate > 1 A cm−2) for formate conversion as well as robust stability (200 mA cm−2 for 45 h). Meanwhile, the NiCo LDH anode displays high activity for HMF electrooxidation to 2,5-furandicarboxylic acid with a faradaic efficiency of over 95% at low potential. Consequently, the paired eCO2RR-HMFOR system reduces the electricity input for the eCO2RR-to-formate conversion to ∼3493 kW h per tonne of formate, corresponding to 22.9% in energy saving compared to the conventional eCO2RR (∼ 4528 kW h per tonne of formate). This study offers an appealing route for CO2 reduction and biomass valorization with low energy consumption.

AB - Coupling the cathodic electrochemical CO2 reduction (eCO2RR) with the anodic electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) is an appealing approach to co-produce value-added chemicals and simultaneously lower the energy input, while the main challenge is to develop effective electrocatalysts for eCO2RR and HMFOR. Inspired by the techno-economic analysis, we herein report a coupling system for economical formate generation and biomass valorization by concurrent cathodic eCO2RR and anodic HMFOR. Single Cu atom doped Bi (Cu1Bi) and NiCo layer doubled hydroxides (NiCo LDHs) are used as the cathodic and anodic catalysts, respectively. Due to the accelerated water dissociation, the Cu1Bi cathode catalyst demonstrated remarkably high activity (jformate > 1 A cm−2) for formate conversion as well as robust stability (200 mA cm−2 for 45 h). Meanwhile, the NiCo LDH anode displays high activity for HMF electrooxidation to 2,5-furandicarboxylic acid with a faradaic efficiency of over 95% at low potential. Consequently, the paired eCO2RR-HMFOR system reduces the electricity input for the eCO2RR-to-formate conversion to ∼3493 kW h per tonne of formate, corresponding to 22.9% in energy saving compared to the conventional eCO2RR (∼ 4528 kW h per tonne of formate). This study offers an appealing route for CO2 reduction and biomass valorization with low energy consumption.

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A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization

Abstract

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