Iron porphyrin for selective electrochemical reduction of CO2: Synthesis, characterization and effect of electrolyte

Amal BaQais; Hassan Ait Ahsaine

doi:10.1016/j.inoche.2023.111360

Iron porphyrin for selective electrochemical reduction of CO2: Synthesis, characterization and effect of electrolyte

Amal BaQais, Hassan Ait Ahsaine

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The electrochemical CO2 reduction reaction to form valued by-products is a challenging and a sustainable process. In general, CO2 reduction to carbon neutral fuels requires selective and well-designed catalysts. Herein, we report perfluorinated iron porphyrin (FeFPor) for CO2-to-CO electroreduction in different bicarbonate electrolytes, byproducts distribution in lithium, sodium, potassium and cesium were analyzed. The immobilized FeFPor on the carbon microporous layer of the carbon cloth exhibited a high selectivity for carbon monoxide production over a wide range of potentials from −0.5 to −1 V vs. RHE in all bicarbonate solution with the NaHCO3 being the best catalytic medium. The highest conversion efficiency to CO production reached 97% at −0.5 V vs. RHE in 0.5 M NaHCO3 in near neutral aqueous solution (pH = 7.2). The CO electrosynthesis dropped when using lithium, potassium and cesium bicarbonates, which was due to the CO2 concentration and reactions at the inner electrode-solution reactions.

Original language	English (US)
Pages (from-to)	111360
Journal	Inorganic Chemistry Communications
Volume	157
DOIs	https://doi.org/10.1016/j.inoche.2023.111360
State	Published - Sep 9 2023
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2023-09-18
Acknowledgements: Part of the characterizations were performed at King Abdullah University of Science and Technology (KAUST). The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number RI-44-0859.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

Materials Chemistry
Physical and Theoretical Chemistry
Inorganic Chemistry

Access to Document

10.1016/j.inoche.2023.111360

Cite this

@article{4def686b2a4b48e7ab64361f72290474,

title = "Iron porphyrin for selective electrochemical reduction of CO2: Synthesis, characterization and effect of electrolyte",

abstract = "The electrochemical CO2 reduction reaction to form valued by-products is a challenging and a sustainable process. In general, CO2 reduction to carbon neutral fuels requires selective and well-designed catalysts. Herein, we report perfluorinated iron porphyrin (FeFPor) for CO2-to-CO electroreduction in different bicarbonate electrolytes, byproducts distribution in lithium, sodium, potassium and cesium were analyzed. The immobilized FeFPor on the carbon microporous layer of the carbon cloth exhibited a high selectivity for carbon monoxide production over a wide range of potentials from −0.5 to −1 V vs. RHE in all bicarbonate solution with the NaHCO3 being the best catalytic medium. The highest conversion efficiency to CO production reached 97% at −0.5 V vs. RHE in 0.5 M NaHCO3 in near neutral aqueous solution (pH = 7.2). The CO electrosynthesis dropped when using lithium, potassium and cesium bicarbonates, which was due to the CO2 concentration and reactions at the inner electrode-solution reactions.",

author = "Amal BaQais and {Ait Ahsaine}, Hassan",

note = "KAUST Repository Item: Exported on 2023-09-18 Acknowledgements: Part of the characterizations were performed at King Abdullah University of Science and Technology (KAUST). The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number RI-44-0859. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2023",

month = sep,

day = "9",

doi = "10.1016/j.inoche.2023.111360",

language = "English (US)",

volume = "157",

pages = "111360",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Iron porphyrin for selective electrochemical reduction of CO2: Synthesis, characterization and effect of electrolyte

AU - BaQais, Amal

AU - Ait Ahsaine, Hassan

N1 - KAUST Repository Item: Exported on 2023-09-18 Acknowledgements: Part of the characterizations were performed at King Abdullah University of Science and Technology (KAUST). The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number RI-44-0859. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2023/9/9

Y1 - 2023/9/9

N2 - The electrochemical CO2 reduction reaction to form valued by-products is a challenging and a sustainable process. In general, CO2 reduction to carbon neutral fuels requires selective and well-designed catalysts. Herein, we report perfluorinated iron porphyrin (FeFPor) for CO2-to-CO electroreduction in different bicarbonate electrolytes, byproducts distribution in lithium, sodium, potassium and cesium were analyzed. The immobilized FeFPor on the carbon microporous layer of the carbon cloth exhibited a high selectivity for carbon monoxide production over a wide range of potentials from −0.5 to −1 V vs. RHE in all bicarbonate solution with the NaHCO3 being the best catalytic medium. The highest conversion efficiency to CO production reached 97% at −0.5 V vs. RHE in 0.5 M NaHCO3 in near neutral aqueous solution (pH = 7.2). The CO electrosynthesis dropped when using lithium, potassium and cesium bicarbonates, which was due to the CO2 concentration and reactions at the inner electrode-solution reactions.

AB - The electrochemical CO2 reduction reaction to form valued by-products is a challenging and a sustainable process. In general, CO2 reduction to carbon neutral fuels requires selective and well-designed catalysts. Herein, we report perfluorinated iron porphyrin (FeFPor) for CO2-to-CO electroreduction in different bicarbonate electrolytes, byproducts distribution in lithium, sodium, potassium and cesium were analyzed. The immobilized FeFPor on the carbon microporous layer of the carbon cloth exhibited a high selectivity for carbon monoxide production over a wide range of potentials from −0.5 to −1 V vs. RHE in all bicarbonate solution with the NaHCO3 being the best catalytic medium. The highest conversion efficiency to CO production reached 97% at −0.5 V vs. RHE in 0.5 M NaHCO3 in near neutral aqueous solution (pH = 7.2). The CO electrosynthesis dropped when using lithium, potassium and cesium bicarbonates, which was due to the CO2 concentration and reactions at the inner electrode-solution reactions.

UR - http://hdl.handle.net/10754/694451

UR - https://linkinghub.elsevier.com/retrieve/pii/S1387700323009723

UR - http://www.scopus.com/inward/record.url?scp=85170415827&partnerID=8YFLogxK

U2 - 10.1016/j.inoche.2023.111360

DO - 10.1016/j.inoche.2023.111360

M3 - Article

SN - 1387-7003

VL - 157

SP - 111360

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

ER -

Iron porphyrin for selective electrochemical reduction of CO2: Synthesis, characterization and effect of electrolyte

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this