4.8 Article

Probing the local activity of CO2 reduction on gold gas diffusion electrodes: effect of the catalyst loading and CO2 pressure

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Multidisciplinary

Probing the Local Reaction Environment During High Turnover Carbon Dioxide Reduction with Ag-Based Gas Diffusion Electrodes

Stefan Dieckhoefer et al.

Summary: This study investigates the impact of electrochemical reactions on the electrode microenvironment, specifically focusing on the production of OH- and the consumption of water. Experimental results show that high turnover of HER/CO2RR at a gas diffusion electrode can modulate the alkalinity of the local electrolyte, affecting the reaction selectivity.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

Article Nanoscience & Nanotechnology

Investigation of Electrolyte-Dependent Carbonate Formation on Gas Diffusion Electrodes for CO2 Electrolysis

Emiliana R. Cofell et al.

Summary: This study investigates the degradation of gas diffusion electrodes (GDEs) in a flowing, alkaline CO2 electrolyzer via the formation of carbonate deposits on the GDE surface. The rate of carbonate deposit formation was found to increase with increasing electrolyte molarity and become more prevalent in K+-containing electrolytes. The formation of carbonate deposits was found to diminish electrode performance in ECO2R and reduce GDE hydrophobicity, leading to increased flooding and internal deposits within the GDE substrate.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Multidisciplinary

The Importance of Acid-Base Equilibria in Bicarbonate Electrolytes for CO2 Electrochemical Reduction and CO Reoxidation Studied on Au(hkl) Electrodes

Giulia Marcandalli et al.

Summary: Gold is the closest to the ideal reversible electrocatalyst for CO2 electrochemical reduction, and the nature of the electrolyte crucially affects its behavior. Research has shown that CO2RR to CO is facet-dependent, with Au(110) being the most active surface, and the acid-base equilibria play a significant role in both CO2RR and COOR. The bicarbonate/carbonate couple is not only a buffering equilibrium but also a species involved in the electrochemical reactions studied.

LANGMUIR (2021)

Article Chemistry, Physical

Microstructural origin of locally enhanced CO2 electroreduction activity on gold

Ruperto G. Mariano et al.

Summary: The study demonstrates that understanding the relationship between surface catalytic activity and bulk defects, such as dislocations, could lead to improvements in catalytic properties, particularly in CO2 electroreduction. Intentionally introducing dislocations into materials appears to be a promising strategy for enhancing catalytic activity.

NATURE MATERIALS (2021)

Article Multidisciplinary Sciences

Efficiency and selectivity of CO2 reduction to CO on gold gas diffusion electrodes in acidic media

Mariana C. O. Monteiro et al.

Summary: Large scale CO2 electrolysis to produce CO has traditionally been done in neutral and alkaline media, but recent research shows that it can also be achieved in acidic media with higher efficiency. Operating at current densities up to 200 mA cm(-2), CO faradaic efficiencies between 80-90% were obtained in sulfate electrolyte, representing a step towards the application of acidic electrolyzers for CO2 electroreduction.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Physical

Absence of CO2 electroreduction on copper, gold and silver electrodes without metal cations in solution

Mariana C. O. Monteiro et al.

Summary: The study found that metal cations play a crucial role in stabilizing the CO2 intermediate during the reduction process on gold electrodes. Density functional theory simulations confirmed that partially desolvated metal cations enable the reduction by stabilizing the CO2- intermediate through short-range electrostatic interactions. In conclusion, the positively charged species from the electrolyte are key to stabilizing the crucial reaction intermediate.

NATURE CATALYSIS (2021)

Article Chemistry, Multidisciplinary

Investigating Electrode Flooding in a Flowing Electrolyte, Gas-Fed Carbon Dioxide Electrolyzer

McLain E. Leonard et al.

CHEMSUSCHEM (2020)

Article Chemistry, Multidisciplinary

Competition between CO2 Reduction and Hydrogen Evolution on a Gold Electrode under Well-Defined Mass Transport Conditions

Akansha Goyal et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

Article Chemistry, Multidisciplinary

Scalable Fabrication of Biophotoelectrodes by Means of Automated Airbrush Spray-Coating

Tim Bobrowski et al.

CHEMPLUSCHEM (2020)

Article Chemistry, Physical

Understanding the Voltammetry of Bulk CO Electrooxidation in Neutral Media through Combined SECM Measurements

Mariana C. O. Monteiro et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Chemistry, Multidisciplinary

The electrolyte matters: Stable systems for high rate electrochemical CO2 reduction

Jan-Bernd Vennekoetter et al.

JOURNAL OF CO2 UTILIZATION (2019)

Article Engineering, Environmental

Beyond the catalyst: How electrode and reactor design determine the product spectrum during electrochemical CO2 reduction

Jan-Bernd Vennekoetter et al.

CHEMICAL ENGINEERING JOURNAL (2019)

Article Electrochemistry

Alumina contamination through polishing and its effect on hydrogen evolution on gold electrodes

Mariana C. O. Monteiro et al.

ELECTROCHIMICA ACTA (2019)

Review Chemistry, Multidisciplinary

CO2 reduction on gas-diffusion electrodes and why catalytic performance must be assessed at commercially-relevant conditions

Thomas Burdyny et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

Article Chemistry, Physical

Modeling gas-diffusion electrodes for CO2 reduction

Lien-Chun Weng et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2018)

Article Chemistry, Physical

Understanding Surface-Mediated Electrochemical Reactions: CO2 Reduction and Beyond

Marco Dunwell et al.

ACS CATALYSIS (2018)

Article Chemistry, Multidisciplinary

Local Activities of Hydroxide and Water Determine the Operation of Silver-Based Oxygen Depolarized Cathodes

Alexander Botz et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Multidisciplinary

Detection of CO2•- in the Electrochemical Reduction of Carbon Dioxide in N,N-Dimethylformamide by Scanning Electrochemical Microscopy

Tianhan Kai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

Review Thermodynamics

Continuous-flow electroreduction of carbon dioxide

B. Endrodi et al.

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2017)

Article Multidisciplinary Sciences

Selective increase in CO2 electroreduction activity at grain-boundary surface terminations

Ruperto G. Mariano et al.

SCIENCE (2017)

Article Chemistry, Physical

Cobalt boride modified with N-doped carbon nanotubes as a high-performance bifunctional oxygen electrocatalyst

Karina Elumeeva et al.

JOURNAL OF MATERIALS CHEMISTRY A (2017)

Article Chemistry, Physical

Catalysts and Reaction Pathways for the Electrochemical Reduction of Carbon Dioxide

Ruud Kortlever et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2015)

Article Chemistry, Physical

Impurity Ion Complexation Enhances Carbon Dioxide Reduction Catalysis

Anna Wuttig et al.

ACS CATALYSIS (2015)

Article Chemistry, Analytical

4D Shearforce-Based Constant-Distance Mode Scanning Electrochemical Microscopy

Michaela Nebel et al.

ANALYTICAL CHEMISTRY (2010)

Article Chemistry, Physical

Turkevich method for gold nanoparticle synthesis revisited

J. Kimling et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2006)