scholarly journals Sequential catalysis controls selectivity in electrochemical CO2 reduction on Cu

2018 ◽  
Vol 11 (10) ◽  
pp. 2935-2944 ◽  
Author(s):  
Yanwei Lum ◽  
Joel W. Ager
Keyword(s):  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Intermediate Species ◽  
Electrochemical Co2 Reduction

A sequential pathway with CO as an intermediate species allows for control of oxygenate selectivity in electrochemical reduction of CO2.

An overview of flow cell architectures design and optimization for electrochemical CO2 reduction

2021 ◽  
Author(s):  
Dui Ma ◽  
Ting Jin ◽  
Keyu Xie ◽  
Haitao Huang
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Electrochemical Reduction ◽  
Atmospheric Carbon Dioxide ◽  
Co2 Reduction ◽  
Value Added ◽  
Flow Cell ◽  
Design And Optimization ◽  
Electrochemical Co2 Reduction ◽  
Carbon Dioxide Levels

Converting CO2 into value-added fuels or chemical feedstocks through electrochemical reduction is one of the several promising avenues to reduce atmospheric carbon dioxide levels and alleviate global warming. This approach...

scholarly journals Positional effects of second-sphere amide pendants on electrochemical CO2 reduction catalyzed by iron porphyrins

2018 ◽  
Vol 9 (11) ◽  
pp. 2952-2960 ◽  
Author(s):  
Eva M. Nichols ◽  
Jeffrey S. Derrick ◽  
Sepand K. Nistanaki ◽  
Peter T. Smith ◽  
Christopher J. Chang
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electrochemical Reduction ◽  
Energy Input ◽  
Sustainable Energy ◽  
Co2 Reduction ◽  
Value Added ◽  
Iron Porphyrins ◽  
Electrochemical Co2 Reduction ◽  
Positional Effects

The development of catalysts for electrochemical reduction of carbon dioxide offers an attractive approach to transforming this greenhouse gas into value-added carbon products with sustainable energy input.

scholarly journals From Electricity to Fuels: Descriptors for C1 Selectivity in Electrochemical CO2 Reduction

2019 ◽  
Author(s):  
Michael Tang ◽  
Hongjie Peng ◽  
Philomena Schlexer Lamoureux ◽  
Michal Bajdich ◽  
Frank Abild-Pedersen
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Reaction Network ◽  
Binding Energies ◽  
Complex Reaction ◽  
Applied Potential ◽  
Electrochemical Co2 Reduction ◽  
Reduced Products ◽  
Combine Evidence

Electrochemical reduction of carbon dioxide (CO<sub>2</sub>) over transition metals follows a complex reaction network. Even for products with a single carbon atom (C<sub>1</sub> products), two bifurcated pathways exist: initially between carboxyl (COOH*) and formate (HCOO*) intermediates and the COOH* intermediate is further bifurcated by pathways involving either formyl (CHO*) or COH*. In this study, we combine evidence from the experimental literature with a theoretical analysis of energetics to rationalize that not all steps in the reduction of CO<sub>2</sub> are electrochemical. This insight enables us to create a selectivity map for two-electron products (carbon monoxide (CO) and formate) on elemental metal surfaces using only the CO and OH binding energies as descriptors. In the further reduction of CO<sup>*</sup>, we find that CHO* is formed through a chemical step only whereas COH* follows from an electrochemical step. Notably on Cu(100), the COH pathway becomes dominant at an applied potential lower than −0.5V vs. RHE. For the elemental metals selective towards CO formation, the variation of the CO binding energy is sufficient to further subdivide the map into domains that predominantly form H<sub>2</sub>, CO, and ultimately more reduced products. We find Cu to be the only elemental metal capable of reducing CO<sub>2</sub> to products beyond 2e<sup>− </sup>via the proposed COH pathway and we identify atomic carbon as the key component leading to the production of methane. Our analysis also rationalizes experimentally observed differences in products between thermal and electrochemical reduction of CO<sub>2</sub> on Cu.

A comparative technoeconomic analysis of pathways for commercial electrochemical CO2 reduction to liquid products

2018 ◽  
Vol 11 (6) ◽  
pp. 1536-1551 ◽  
Author(s):  
Joshua M. Spurgeon ◽  
Bijandra Kumar
Keyword(s):  
Electrochemical Reduction ◽  
Research Effort ◽  
Co2 Reduction ◽  
Renewable Electricity ◽  
Technoeconomic Analysis ◽  
On Demand ◽  
Electrochemical Co2 Reduction ◽  
Significant Research ◽  
Liquid Products ◽  
Fuels And Chemicals

Electrochemical reduction of CO2 to fuels and chemicals is currently a focus of significant research effort as a technology that can simultaneously mitigate greenhouse gas emissions while storing renewable electricity for use on demand. Herein, the economics of CO2 reduction to select liquid products is analyzed.

Electropolymerized Metal-Protoporphyrin electrodes for Selective Electrochemical Reduction of CO2

2021 ◽  
Author(s):  
Nael Yasri ◽  
Tareq Al-Attas ◽  
Jinguang Hu ◽  
Md Golam Kibria
Keyword(s):  
Electrochemical Reduction ◽  
Aqueous Media ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Practical Implementation ◽  
Electrochemical Co2 Reduction ◽  
Reduction Of Co2 ◽  
Co2 Reduction Reaction

Developing catalysts that exhibit high efficiencies for the electrochemical CO2 reduction reaction (CO2RR) in aqueous media is vital in both aspects of the healthier environment and for the practical implementation...

Electrochemical CO2 Reduction to Ethanol: From Mechanistic Understanding to Catalyst Design

2021 ◽  
Author(s):  
Tu Ngoc Nguyen ◽  
Jiaxun Guo ◽  
Ashwini Sachindran ◽  
Fengwang Li ◽  
Ali Seifitokaldani ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Catalyst Design ◽  
Greenhouse Gas Mitigation ◽  
Electrochemical Co2 Reduction ◽  
Mechanistic Understanding ◽  
Carbon Dioxide Co2

The electrochemical reduction of carbon dioxide (CO2) to chemicals is gaining great attention as a pragmatic solution for greenhouse gas mitigation and for the utilization of CO2 to produce useful...

An enhanced electrochemical CO2 reduction reaction on the SnOx–PdO surface of SnPd nanoparticles decorated on N-doped carbon fibers

2021 ◽  
Author(s):  
Sreekanth Narayanaru ◽  
Gopinathan M. Anilkumar ◽  
Masaki Ito ◽  
Takanori Tamaki ◽  
Takeo Yamaguchi
Keyword(s):  
Electrochemical Reduction ◽  
Carbon Fibers ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Electrochemical Co2 Reduction ◽  
Co2 Reduction Reaction

Electrochemical reduction of CO2 to formate on SnPd–NCF. The adsorbed bicarbonate ion promotes the protonation of CO2˙− to HCO2−.

scholarly journals Computational studies of electrochemical CO2 reduction on subnanometer transition metal clusters

2014 ◽  
Vol 16 (48) ◽  
pp. 26584-26599 ◽  
Author(s):  
Cong Liu ◽  
Haiying He ◽  
Peter Zapol ◽  
Larry A. Curtiss
Keyword(s):  
Transition Metal ◽  
Electrochemical Reduction ◽  
Metal Clusters ◽  
Co2 Reduction ◽  
Atomic Transition ◽  
Computational Studies ◽  
Transition Metal Clusters ◽  
Electrochemical Co2 Reduction

Computational studies of electrochemical reduction of CO2 were carried out using tetra-atomic transition metal clusters.

scholarly journals From Electricity to Fuels: Descriptors for C1 Selectivity in Electrochemical CO2 Reduction

2019 ◽  
Author(s):  
Michael Tang ◽  
Hongjie Peng ◽  
Philomena Schlexer Lamoureux ◽  
Michal Bajdich ◽  
Frank Abild-Pedersen
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Reaction Network ◽  
Binding Energies ◽  
Complex Reaction ◽  
Applied Potential ◽  
Electrochemical Co2 Reduction ◽  
Reduced Products ◽  
Combine Evidence

Electrochemical reduction of carbon dioxide (CO<sub>2</sub>) over transition metals follows a complex reaction network. Even for products with a single carbon atom (C<sub>1</sub> products), two bifurcated pathways exist: initially between carboxyl (COOH*) and formate (HCOO*) intermediates and the COOH* intermediate is further bifurcated by pathways involving either formyl (CHO*) or COH*. In this study, we combine evidence from the experimental literature with a theoretical analysis of energetics to rationalize that not all steps in the reduction of CO<sub>2</sub> are electrochemical. This insight enables us to create a selectivity map for two-electron products (carbon monoxide (CO) and formate) on elemental metal surfaces using only the CO and OH binding energies as descriptors. In the further reduction of CO<sup>*</sup>, we find that CHO* is formed through a chemical step only whereas COH* follows from an electrochemical step. Notably on Cu(100), the COH pathway becomes dominant at an applied potential lower than −0.5V vs. RHE. For the elemental metals selective towards CO formation, the variation of the CO binding energy is sufficient to further subdivide the map into domains that predominantly form H<sub>2</sub>, CO, and ultimately more reduced products. We find Cu to be the only elemental metal capable of reducing CO<sub>2</sub> to products beyond 2e<sup>− </sup>via the proposed COH pathway and we identify atomic carbon as the key component leading to the production of methane. Our analysis also rationalizes experimentally observed differences in products between thermal and electrochemical reduction of CO<sub>2</sub> on Cu.

Ionic liquids enhance the electrochemical CO2 reduction catalyzed by MoO2

2015 ◽  
Vol 51 (71) ◽  
pp. 13698-13701 ◽  
Author(s):  
Yeonji Oh ◽  
Xile Hu
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Electrochemical Co2 Reduction

Imidazolium-based ionic liquids promote MoO2-catalyzed electrochemical reduction of CO2.

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