Synthesis and Electrocatalytic CO2 Reduction Activity of an Iron Porphyrin Complex Bearing a Hydroquinone Moiety

2022 ◽  
Author(s):  
Kento Kosugi ◽  
Maho Imai ◽  
Mio Kondo ◽  
Shigeyuki Masaoka
Keyword(s):  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Porphyrin Complex ◽  
Reduction Activity

Effects of Appended Poly(ethylene glycol) on Electrochemical CO2 Reduction by an Iron Porphyrin Complex

2021 ◽  
Vol 60 (6) ◽  
pp. 3843-3850
Author(s):  
Ashwin Chaturvedi ◽  
Caroline K. Williams ◽  
Nilakshi Devi ◽  
Jianbing “Jimmy” Jiang
Keyword(s):  
Ethylene Glycol ◽  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Poly Ethylene Glycol ◽  
Porphyrin Complex ◽  
Electrochemical Co2 Reduction ◽  
Poly Ethylene

scholarly journals An iron porphyrin complex with pendant pyridine substituents facilitates electrocatalytic CO2 reduction via second coordination sphere effects

ChemCatChem ◽  
2021 ◽  
Author(s):  
Anthony Ramuglia ◽  
Hoang Khoa Ly ◽  
Vishal Budhija ◽  
Michael Marquardt ◽  
Matthias Schwalbe ◽  
...  
Keyword(s):  
Coordination Sphere ◽  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Porphyrin Complex ◽  
Second Coordination Sphere

Modulating intramolecular electron and proton transfer kinetics for promoting carbon dioxide conversion

2022 ◽  
Author(s):  
Yajie Yuan ◽  
Yazhen Zhao ◽  
Shuai Yang ◽  
Sheng Han ◽  
Chenbao Lu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Dipole Moment ◽  
Proton Transfer ◽  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Carbon Dioxide Conversion ◽  
Reduction Activity

A novel pentagon-heptagon paired azulene group which possesses large dipole moment is immobilized to porphyrin. The as–prepared azulene iron porphyrin exhibits narrower bandgap and higher electrocatalytic CO2 reduction activity than...

An NADH-Inspired Redox Mediator Strategy to Promote Second-Sphere Electron and Proton Transfer for Cooperative Electrochemical CO2 Reduction Catalyzed by Iron Porphyrin

2020 ◽  
Author(s):  
Peter T. Smith ◽  
Sophia Weng ◽  
Christopher Chang
Keyword(s):  
Proton Transfer ◽  
Co2 Reduction ◽  
Iron Porphyrin ◽  
Redox Mediators ◽  
Reservoir Properties ◽  
Proton Reduction ◽  
Electrochemical Co2 Reduction ◽  
Starting Point ◽  
Rate Improvement ◽  
Molecular Catalysts

We present a bioinspired strategy for enhancing electrochemical carbon dioxide reduction catalysis by cooperative use of base-metal molecular catalysts with intermolecular second-sphere redox mediators that facilitate both electron and proton transfer. Functional synthetic mimics of the biological redox cofactor NADH, which are electrochemically stable and are capable of mediating both electron and proton transfer, can enhance the activity of an iron porphyrin catalyst for electrochemical reduction of CO<sub>2</sub> to CO, achieving a 13-fold rate improvement without altering the intrinsic high selectivity of this catalyst platform for CO<sub>2</sub> versus proton reduction. Evaluation of a systematic series of NADH analogs and redox-inactive control additives with varying proton and electron reservoir properties reveals that both electron and proton transfer contribute to the observed catalytic enhancements. This work establishes that second-sphere dual control of electron and proton inventories is a viable design strategy for developing more effective electrocatalysts for CO<sub>2</sub> reduction, providing a starting point for broader applications of this approach to other multi-electron, multi-proton transformations.

Direct Z-scheme Sn-In2O3/In2S3 heterojunction nanostructures for enhanced photocatalytic CO2 reduction activity

2021 ◽  
Author(s):  
Yinyi Ma ◽  
Zemin Zhang ◽  
Xiao Jiang ◽  
Rongke Sun ◽  
Mingzheng Xie ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Environmental Pollution ◽  
Light Absorption ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Practical Significance ◽  
Energy Crisis ◽  
Low Light ◽  
Reduction Activity

Photocatalytic reduction of carbon dioxide into chemical fuels has great practical significance in solving energy crisis and environmental pollution, but remains a big challenge owing to its low light absorption...

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