Stability of surface protons in pyridine-catalyzed CO2 reduction at p-GaP photoelectrodes

2016 ◽  
Vol 18 (38) ◽  
pp. 26434-26443 ◽  
Author(s):  
Martina Lessio ◽  
Christoph Riplinger ◽  
Emily A. Carter
Keyword(s):  
Co2 Reduction ◽  
Water Dissociation ◽  
Reduction Mechanism

Computed pKas suggest that adsorbed protons from water dissociation are stable and may play a role in CO2 reduction mechanism.

CO2 Reduction Mechanism on the Pb(111) Surface: Effect of Solvent and Cations

2017 ◽  
Vol 121 (36) ◽  
pp. 19767-19773 ◽  
Author(s):  
Chen Xu Zhao ◽  
Yi Fan Bu ◽  
Wang Gao ◽  
Qing Jiang
Keyword(s):  
Surface Effect ◽  
Co2 Reduction ◽  
Reduction Mechanism ◽  
Effect Of Solvent

Proton capture strategy for enhancing electrochemical CO2 reduction on atomically dispersed metal-nitrogen active sites

2020 ◽  
Author(s):  
Xinyue Wang ◽  
Xiahan Sang ◽  
Chung-Li Dong ◽  
Siyu Yao ◽  
Ling Shuai ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Active Sites ◽  
High Performance ◽  
Co2 Reduction ◽  
Water Dissociation ◽  
Proton Capture ◽  
Transmission Electron ◽  
Electrochemical Co2 Reduction ◽  
Scanning Transmission ◽  
First Time

Abstract Electrocatalysts play a key role in accelerating the sluggish electrochemical CO2 reduction (ECR) involving multi-electron and proton transfer. Herein, we develop a proton capture strategy via accelerating the water dissociation reaction catalyzed by transition metal nanoparticles (NPs) adjacent to atomically dispersed Ni-Nx active sites (Ni@NiNCM) to accelerate the proton transfer to the latter for boosting the intermediate protonation step, and hence the whole ECR process. For the first time, the accelerated protonation process is amply demonstrated experimentally. Aberration-corrected scanning transmission electron microscopy and synchrotron radiation X-ray absorption spectroscopy, together with DFT calculations, revealed that the Ni NPs accelerated the adsorbed H (Had) generation and transfer to the adjacent Ni-Nx sites for boosting the intermediate protonation and the overall ECR processes. This proton capture strategy is highly general, which can be extended to the design and preparation of various high-performance catalysts for diverse electrochemical reactions even beyond ECR.

Activating a Low Overpotential CO2 Reduction Mechanism by a Strategic Ligand Modification on a Ruthenium Polypyridyl Catalyst

2015 ◽  
Vol 55 (5) ◽  
pp. 1825-1829 ◽  
Author(s):  
Ben A. Johnson ◽  
Somnath Maji ◽  
Hemlata Agarwala ◽  
Travis A. White ◽  
Edgar Mijangos ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Reduction Mechanism ◽  
Ruthenium Polypyridyl ◽  
Ligand Modification ◽  
Low Overpotential

Activating a Low Overpotential CO2 Reduction Mechanism by a Strategic Ligand Modification on a Ruthenium Polypyridyl Catalyst

2015 ◽  
Vol 128 (5) ◽  
pp. 1857-1861 ◽  
Author(s):  
Ben A. Johnson ◽  
Somnath Maji ◽  
Hemlata Agarwala ◽  
Travis A. White ◽  
Edgar Mijangos ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Reduction Mechanism ◽  
Ruthenium Polypyridyl ◽  
Ligand Modification ◽  
Low Overpotential

The Plains CO2 Reduction (PCOR) Partnership: CO2 Sequestration Demonstration Projects Adding Value to the Oil and Gas Industry

2013 ◽  
Author(s):  
Charles D. Gorecki ◽  
Edward N. Steadman ◽  
John A. Harju ◽  
James A. Sorensen ◽  
John A. Hamling ◽  
...  
Keyword(s):  
Co2 Sequestration ◽  
Oil And Gas ◽  
Co2 Reduction ◽  
Oil And Gas Industry ◽  
Gas Industry
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