Selective CO2 Reduction on Zinc Electrocatalyst: The Effect of Zinc Oxidation State Induced by Pretreatment Environment

2017 ◽  
Vol 5 (12) ◽  
pp. 11377-11386 ◽  
Author(s):  
Dang Le Tri Nguyen ◽  
Michael Shincheon Jee ◽  
Da Hye Won ◽  
Hyejin Jung ◽  
Hyung-Suk Oh ◽  
...  
Keyword(s):  
Oxidation State ◽  
Co2 Reduction

scholarly journals Controlling the Oxidation State of the Cu Electrode and Reaction Intermediates for Electrochemical CO2 Reduction to Ethylene

2020 ◽  
Vol 142 (6) ◽  
pp. 2857-2867 ◽  
Author(s):  
Tsu-Chin Chou ◽  
Chiao-Chun Chang ◽  
Hung-Ling Yu ◽  
Wen-Yueh Yu ◽  
Chung-Li Dong ◽  
...  
Keyword(s):  
Oxidation State ◽  
Co2 Reduction ◽  
Reaction Intermediates ◽  
Electrochemical Co2 Reduction

scholarly journals Effect of the oxidation state and morphology of SnOx-based electrocatalysts on the CO2 reduction reaction

2021 ◽  
Author(s):  
Lara G. Puppin ◽  
Luís F. da Silva ◽  
Marcelo Carmo ◽  
Hamilton Varela ◽  
Osmando F. Lopes
Keyword(s):  
Particle Size ◽  
Renewable Energy ◽  
Carbon Cycle ◽  
Formic Acid ◽  
Oxidation State ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Reduction Step ◽  
Anthropogenic Carbon ◽  
Co2 Reduction Reaction

AbstractCO2 electrochemical reduction reaction (CO2RR) is an attractive strategy for closing the anthropogenic carbon cycle and storing intermittent renewable energy. Tin-based electrocatalysts exhibit remarkable properties for reducing CO2 into HCOOH. However, the effects of morphology and oxidation state of tin-based electrocatalysts on the performance of CO2 reduction have not been well-described. We evaluate the oxidation state and particle size of SnOx for CO2 reduction. SnOx was effective for converting CO2 into formic acid, reaching a maximum selectivity of 69%. The SnO exhibited high activity for CO2RR compared to SnO2 electrocatalysts. A pre-reduction step of a SnO2 electrocatalyst increased its CO2 reduction performance, confirming that Sn2+ is more active than Sn4+ sites. The microsized SnO2 is more effective for converting CO2 into formic acid than nanosized SnO2, likely due to the impurities of nanosized SnO2. We illuminated the role played by both SnOx particle size and oxidation state on CO2RR performance. Graphic abstract

Revisiting the Impact of Morphology and Oxidation State of Cu on CO2 Reduction Using Electrochemical Flow Cell

2022 ◽  
pp. 345-351
Author(s):  
Abdullah M. Asiri ◽  
Jing Gao ◽  
Sher Bahadar Khan ◽  
Khalid A Alamry ◽  
Hadi M. Marwani ◽  
...  
Keyword(s):  
Oxidation State ◽  
Co2 Reduction ◽  
Flow Cell ◽  
The Impact ◽  
Electrochemical Flow Cell

Regulating the oxidation state of nanomaterials for electrocatalytic CO2 reduction

2021 ◽  
Author(s):  
Zhi-Zheng Wu ◽  
Fei-Yue Gao ◽  
Min-Rui Gao
Keyword(s):  
Oxidation State ◽  
Co2 Reduction ◽  
Recent Advances

Recent advances in regulating the oxidation state of nanocatalysts for enhanced CO2 electroreduction has been comprehensively reviewed.

scholarly journals Oxidation State and Surface Reconstruction of Cu under CO2 Reduction Conditions from In Situ X-ray Characterization

2020 ◽  
Author(s):  
Soo Hong Lee ◽  
John C. Lin ◽  
Maryam Farmand ◽  
Alan T. Landers ◽  
Jeremy T. Feaster ◽  
...  
Keyword(s):  
Oxidation State ◽  
Surface Reconstruction ◽  
Co2 Reduction ◽  
X Ray

Oxygen-induced changes to selectivity-determining steps in electrocatalytic CO2 reduction

2015 ◽  
Vol 17 (6) ◽  
pp. 4505-4515 ◽  
Author(s):  
Yin-Jia Zhang ◽  
Andrew A. Peterson
Keyword(s):  
Density Functional Theory ◽  
Oxidation State ◽  
Density Functional ◽  
Co2 Reduction ◽  
The State ◽  
Functional Theory ◽  
Induced Changes

The state of the electrocatalyst surface—including the oxidation state of the catalyst and the presence of spectator species—is investigated on Cu surfaces with density functional theory in order to understand predicted ramifications on the selectivity of CO2 reduction between CH4 and CH3OH.

Chromium oxidation state mapping in human cells

2003 ◽  
Vol 104 ◽  
pp. 289-292 ◽  
Author(s):  
R. Ortega ◽  
B. Fayard ◽  
M. Salomé ◽  
G. Devès ◽  
J. Susini
Keyword(s):  
Oxidation State ◽  
Human Cells ◽  
Chromium Oxidation

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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