Photocatalytic CO2 Reduction Using a Robust Multifunctional Iridium Complex toward the Selective Formation of Formic Acid

2020 ◽  
Vol 142 (23) ◽  
pp. 10261-10266 ◽  
Author(s):  
Kenji Kamada ◽  
Jieun Jung ◽  
Taku Wakabayashi ◽  
Keita Sekizawa ◽  
Shunsuke Sato ◽  
...  
Keyword(s):  
Formic Acid ◽  
Co2 Reduction ◽  
Iridium Complex ◽  
Selective Formation

scholarly journals Resin-supported iridium complex for low-temperature vanillin hydrogenation using formic acid in water

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15835-15840
Author(s):  
Christene A. Smith ◽  
Francesco Brandi ◽  
Majd Al-Naji ◽  
Ryan Guterman
Keyword(s):  
Low Temperature ◽  
Formic Acid ◽  
Iridium Complex ◽  
Molecular Catalysis

Solid-supported molecular catalysis for biorefinery. Hydrogenation using formic acid in water at low temperature.

Sn-Based Electrocatalyst Stability: A Crucial Piece to the Puzzle for the Electrochemical CO2 Reduction toward Formic Acid

2021 ◽  
pp. 4317-4327
Author(s):  
Kevin Van Daele ◽  
Bert De Mot ◽  
Marilia Pupo ◽  
Nick Daems ◽  
Deepak Pant ◽  
...  
Keyword(s):  
Formic Acid ◽  
Co2 Reduction ◽  
Electrochemical Co2 Reduction

CO2 reduction to formic acid at low overpotential on BDD electrodes modified with nanostructured CeO2

2019 ◽  
Vol 7 (30) ◽  
pp. 17896-17905 ◽  
Author(s):  
Enrico Verlato ◽  
Simona Barison ◽  
Yasuaki Einaga ◽  
Stefano Fasolin ◽  
Marco Musiani ◽  
...  
Keyword(s):  
Formic Acid ◽  
Co2 Reduction ◽  
Faradaic Efficiency ◽  
Low Overpotential

Nanostructured CeO2/BDD electrodes produce formic acid with good faradaic efficiency at very low overpotential (>40% at η ≈ 40 mV).

scholarly journals Continuous Hydrogenation of Carbon Dioxide to Formic Acid and Methyl Formate by a Molecular Iridium Complex Stably Heterogenized on a Covalent Triazine Framework

ChemCatChem ◽  
2019 ◽  
Vol 11 (19) ◽  
pp. 4725-4730 ◽  
Author(s):  
Juan José Corral‐Pérez ◽  
Amelia Billings ◽  
Dragos Stoian ◽  
Atsushi Urakawa
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Methyl Formate ◽  
Iridium Complex ◽  
Covalent Triazine Framework ◽  
Hydrogenation Of Carbon Dioxide ◽  
Continuous Hydrogenation

Mo–Bi–Cd Ternary Metal Chalcogenides: Highly Efficient Photocatalyst for CO2 Reduction to Formic Acid Under Visible Light

2018 ◽  
Vol 6 (5) ◽  
pp. 5754-5759 ◽  
Author(s):  
Baowen Zhou ◽  
Jinliang Song ◽  
Chao Xie ◽  
Chunjun Chen ◽  
Qingli Qian ◽  
...  
Keyword(s):  
Formic Acid ◽  
Visible Light ◽  
Co2 Reduction ◽  
Metal Chalcogenides ◽  
Highly Efficient ◽  
Ternary Metal

(Invited) Mechanism of Formic Acid Synthesis in Low pH During CO2 Reduction via Electrified Plasma/Liquid Interface

2020 ◽  
Vol 97 (7) ◽  
pp. 429-439 ◽  
Author(s):  
Andressa Mota-Lima
Keyword(s):  
Formic Acid ◽  
Co2 Reduction ◽  
Acid Synthesis ◽  
Low Ph ◽  
Liquid Interface

scholarly journals Why do RuO2 electrodes catalyze electrochemical CO2 reduction to methanol rather than methane or perhaps neither of those?

2020 ◽  
Vol 11 (35) ◽  
pp. 9542-9553 ◽  
Author(s):  
Ebrahim Tayyebi ◽  
Javed Hussain ◽  
Egill Skúlason
Keyword(s):  
Formic Acid ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Experimental Literature ◽  
Energy Barriers ◽  
Electrochemical Co2 Reduction

Energy barriers are calculated for the electrochemical CO2 reduction reaction on the RuO2(110) surface towards methanol, methane, formic acid, methanediol, CO and the competing H2 formation and compared with experimental literature.

scholarly journals On the Mechanism of Carbon Dioxide Reduction on Sn-Based Electrodes: Insights into the Role of Oxide Surfaces

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 636 ◽  
Author(s):  
Giane B. Damas ◽  
Caetano R. Miranda ◽  
Ricardo Sgarbi ◽  
James M. Portela ◽  
Mariana R. Camilo ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electron Transfer ◽  
Formic Acid ◽  
Oxide Layer ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Oxide Surfaces ◽  
In Situ Conditions

The electrochemical reduction of carbon dioxide into carbon monoxide, hydrocarbons and formic acid has offered an interesting alternative for a sustainable energy scenario. In this context, Sn-based electrodes have attracted a great deal of attention because they present low price and toxicity, as well as high faradaic efficiency (FE) for formic acid (or formate) production at relatively low overpotentials. In this work, we investigate the role of tin oxide surfaces on Sn-based electrodes for carbon dioxide reduction into formate by means of experimental and theoretical methods. Cyclic voltammetry measurements of Sn-based electrodes, with different initial degree of oxidation, result in similar onset potentials for the CO2 reduction to formate, ca. −0.8 to −0.9 V vs. reversible hydrogen electrode (RHE), with faradaic efficiencies of about 90–92% at −1.25 V (vs. RHE). These results indicate that under in-situ conditions, the electrode surfaces might converge to very similar structures, with partially reduced or metastable Sn oxides, which serve as active sites for the CO2 reduction. The high faradaic efficiencies of the Sn electrodes brought by the etching/air exposition procedure is ascribed to the formation of a Sn oxide layer with optimized thickness, which is persistent under in situ conditions. Such oxide layer enables the CO2 “activation”, also favoring the electron transfer during the CO2 reduction reaction due to its better electric conductivity. In order to elucidate the reaction mechanism, we have performed density functional theory calculations on different slab models starting from the bulk SnO and Sn6O4(OH)4 compounds with focus on the formation of -OH groups at the water-oxide interface. We have found that the insertion of CO2 into the Sn-OH bond is thermodynamically favorable, leading to the stabilization of the tin-carbonate species, which is subsequently reduced to produce formic acid through a proton-coupled electron transfer process. The calculated potential for CO2 reduction (E = −1.09 V vs. RHE) displays good agreement with the experimental findings and, therefore, support the CO2 insertion onto Sn-oxide as a plausible mechanism for the CO2 reduction in the potential domain where metastable oxides are still present on the Sn surface. These results not only rationalize a number of literature divergent reports but also provide a guideline for the design of efficient CO2 reduction electrocatalysts.

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