Journal ArticleDOI
CO2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface
Cao-Thang Dinh,Thomas Burdyny,Golam Kibria,Ali Seifitokaldani,Christine M. Gabardo,F. Pelayo García de Arquer,Amirreza Kiani,Jonathan P. Edwards,Phil De Luna,Oleksandr S. Bushuyev,Chengqin Zou,Chengqin Zou,Rafael Quintero-Bermudez,Yuanjie Pang,David Sinton,Edward H. Sargent +15 more
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TLDR
A copper electrocatalyst at an abrupt reaction interface in an alkaline electrolyte reduces CO2 to ethylene with 70% faradaic efficiency at a potential of −0.55 volts versus a reversible hydrogen electrode (RHE).Abstract:
Carbon dioxide (CO 2 ) electroreduction could provide a useful source of ethylene, but low conversion efficiency, low production rates, and low catalyst stability limit current systems. Here we report that a copper electrocatalyst at an abrupt reaction interface in an alkaline electrolyte reduces CO 2 to ethylene with 70% faradaic efficiency at a potential of −0.55 volts versus a reversible hydrogen electrode (RHE). Hydroxide ions on or near the copper surface lower the CO 2 reduction and carbon monoxide (CO)–CO coupling activation energy barriers; as a result, onset of ethylene evolution at −0.165 volts versus an RHE in 10 molar potassium hydroxide occurs almost simultaneously with CO production. Operational stability was enhanced via the introduction of a polymer-based gas diffusion layer that sandwiches the reaction interface between separate hydrophobic and conductive supports, providing constant ethylene selectivity for an initial 150 operating hours.read more
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Cu/Cu2O Interconnected Porous Aerogel Catalyst for Highly Productive Electrosynthesis of Ethanol from CO2
Chansol Kim,Kyeong Min Cho,Kyeong Min Cho,Kangho Park,Kangho Park,Ju Ye Kim,Geun-Tae Yun,Francesca M. Toma,Issam Gereige,Hannes Jung +9 more
Journal ArticleDOI
High-Pressure Electrochemical Reduction of CO2 to Formic Acid/Formate: Effect of pH on the Downstream Separation Process and Economics
Mahinder Ramdin,Andrew R. T. Morrison,Mariëtte de Groen,Rien van Haperen,Robert de Kler,Erdem Irtem,Antero Laitinen,Leo J. P. van den Broeke,Tom Breugelmans,J. P. Martin Trusler,Wiebren de Jong,Thijs J. H. Vlugt +11 more
TL;DR: In this paper, a high-pressure semicontinuous batch electrochemical reactor with a tin-based cathode was used to demonstrate that it is possible to efficiently convert CO2 to formic acid (FA) in low-pH (i.e., pH <...
Journal ArticleDOI
Electrochemical Approaches for CO2 Conversion to Chemicals: A Journey toward Practical Applications.
TL;DR: This Account focuses on the development of novel electrocatalysts for CO2/CO electroreduction to enhance the product selectivity and lower the energy consumption, and the commercial potential of the CO2 electrolysis technology, such as understanding pollutant effects in CO2 electrored reduction and developing techno-economic analysis.
Journal ArticleDOI
A direct coupled electrochemical system for capture and conversion of CO2 from oceanwater.
Ibadillah A. Digdaya,Ian Sullivan,Meng Lin,Lihao Han,Wen-Hui Cheng,Harry A. Atwater,Chengxiang Xiang +6 more
TL;DR: A direct coupled, proof-of-concept electrochemical system that uses a bipolar membrane electrodialysis (BPMED) cell and a vapor-fed CO2 reduction (CO2R) cell to capture and convert CO2 from oceanwater provides a unique technological pathway for CO2 capture and conversion from ocean water with only electrochemical processes.
Journal ArticleDOI
Enhanced Electrochemical Reduction of CO2 Catalyzed by Cobalt and Iron Amino Porphyrin Complexes
Maryam Abdinejad,Ali Seifitokaldani,Caitlin Dao,Edward H. Sargent,Xiao-an Zhang,Heinz-Bernhard Kraatz +5 more
TL;DR: In this article, the amino substituents were introduced to improve the performance of metallo-porphyrin complexes such as cobalt and iron porphyrins for CO2 reduction.
References
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Journal ArticleDOI
Improved tangent estimate in the nudged elastic band method for finding minimum energy paths and saddle points
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