CO<sub>2</sub> splitting into CO and O<sub>2</sub> in micro-tubular solid oxide electrolysers

Kleiminger, L.; Li, T.; Li, K.; Kelsall, G. H.

doi:10.1039/c4ra08967g

Cited by 34 publications

(22 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Later it was demonstrated that Ni–YSZ electrode possessed excellent electrochemical performance and high stability for CO 2 electrolysis in SOEC . Besides in planar SOECs, Ni–YSZ cathode also displayed admirable electrochemical performance for CO 2 electrolysis in microtubular SOEC . Normally, the product for CO 2 electrolysis or CO 2 /H 2 O coelectrolysis is CO or syngas (CO + H 2 ).…”

Section: Cathode Materialsmentioning

confidence: 99%

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

et al. 2019

View full text Add to dashboard Cite

which has caused serious global warming. According to Intergovernmental Panel on Climate Change, global warming of 1.5 °C above preindustrial levels will come true by 2055 and bring about severe environmental and ecological issues, [2] such as ocean acidification, sea level rise, and species extinction. Therefore, it is urgently needed to reduce the atmospheric CO 2 concentration. [3] Apart from utilizing renewable energy resources to substitute for fossil fuels, CO 2 capture and storage (CCS) processes, and CO 2 capture and utilization (CCU) processes have been developed to effectively diminish the existing atmospheric CO 2 concentration. [4] The CCS processes are often expensive and laborious, and face the risk of CO 2 leakage, while the CCU processes are able to convert the captured CO 2 to value-added carbon-containing chemicals powered by external energy and has attracted more and more research interests recently. However, the conversion of CO 2 to target products is relatively difficult due to its extremely stable CO bonds. Several approaches for CO 2 conversion have been developed, such as photosynthesis, thermocatalytic reduction, electrochemical reduction, and photochemical conversion. Compared with other approaches, electrochemical reduction is more attractive because of two reasons: 1) electrochemical reduction process is controllable through adjusting the applied voltage and reaction temperature, and 2) the process can utilize renewable energy resources such as wind, solar, hydroelectric, and geothermal energies to electrochemically convert CO 2 to useful chemicals, which forms a carbon-neutral energy cycle and simultaneously provides an efficient storage method for renewable energy resources.Several types of electrolysis cell have been systematically investigated for CO 2 electroreduction as listed in Table 1. The first type operates in H-shaped electrochemical cells with liquid electrolyte at low temperatures (<100 °C).[5] Gaseous CO 2 reactant is dissolved into the liquid electrolyte and transported to the electrode surface, which is subsequently electroreduced to CO, HCOOH, CH 4 , C 2 H 4 , C 2 H 5 OH, and so on. [1,6] Although high Faradaic efficiency of products from CO 2 electroreduction has been achieved by exploring efficient catalysts recently, the current density of CO 2 electrolysis is relatively low due to the low CO 2 solubility and the competitive High-temperature CO 2 electrolysis in solid-oxide electrolysis cells (SOECs) could greatly assist in the reduction of CO 2 emissions by electrochemically converting CO 2 to valuable fuels through effective electrothermal activation of the stable CO bond. If powered by renewable energy resources, it could also provide an advanced energy-storage method for their intermittent output. Compared to low-temperature electrochemical CO 2 reduction, CO 2 electrolysis in SOECs at high temperature exhibits higher current density and energy efficiency and has thus attracted much recent attention. The history of its development and its fundamental mech...

show abstract

Section: Cathode Materialsmentioning

confidence: 99%

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In this study, the major objective is to prove the effectiveness of the new anodic current collector design in achieving a more uniform current collection and reducing contact loss. Therefore, a simplified method has been adopted to calculate various ohmic contributions, as described in previous studies [18,34]. It is generally accepted that the total ohmic loss is mainly composed of electrolyte ohmic loss, electrode ohmic loss, contact loss and resistance from current collector.…”

Section: Electrochemical Performances and Calculation Of Ohmic Contrimentioning

confidence: 99%

High-efficiency, nickel-ceramic composite anode current collector for micro-tubular solid oxide fuel cells

2015

Journal of Power Sources

Self Cite

View full text Add to dashboard Cite

“…At these cases, small amount water was usually added to provide the proton. Besides, yttrium stabilized zirconia was also reported as the solid electrolyte for the electrochemical CO 2 splitting process in a micro‐tubular solid oxide electrolyzer . Without water providing proton, the O 2− generated on cathode transferred to anode to form O 2 with releasing electron.…”

Section: Fundamental Principlesmentioning

confidence: 99%

Electrochemical Carbon Dioxide Splitting

Xie

Huang

et al. 2019

ChemElectroChem

View full text Add to dashboard Cite

To realize renewable energy storage with a reduced carbon footprint for replacing fossil fuel and closing the unbalanced carbon cycle, electrochemical CO 2 splitting, commonly containing aqueous CO 2 reduction and water oxidation as core reactions, has received booming interest for its unique ability to produce chemicals and fuels from CO 2 powered by renewable electricity. In this Review, recent progress of electrochemical CO 2 splitting from a fundamental understanding to practical control of the main performance index, including production rate, product selectivity, and energetic efficiency, is discussed with the highlight of the methodologies used to increase CO 2 supply in water media and active site design. The roles of the main components in electrochemical CO 2 splitting devices, such as catalyst, electrode, electrolyzer, membrane, and electrolyte, are discussed. Finally, we also provide personal perspectives to highlight the opportunities to overcome low stability and limited selectivity for practical electrochemical CO 2 splitting.[a] Dr.

show abstract

CO₂ splitting into CO and O₂ in micro-tubular solid oxide electrolysers

Abstract: Efficient high temperature CO2 to CO and O2 conversion achieved using micro-tubular solid oxide electrolysers prepared by dual-layer co-extrusion.

Cited by 34 publications

References 46 publications

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

High-efficiency, nickel-ceramic composite anode current collector for micro-tubular solid oxide fuel cells

Electrochemical Carbon Dioxide Splitting

Contact Info

Product

Resources

About

CO2 splitting into CO and O2 in micro-tubular solid oxide electrolysers

Abstract: Efficient high temperature CO2 to CO and O2 conversion achieved using micro-tubular solid oxide electrolysers prepared by dual-layer co-extrusion.

Cited by 34 publications

References 46 publications

High‐Temperature CO2 Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

High‐Temperature CO2 Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

High-efficiency, nickel-ceramic composite anode current collector for micro-tubular solid oxide fuel cells

Electrochemical Carbon Dioxide Splitting

Contact Info

Product

Resources

About

CO₂ splitting into CO and O₂ in micro-tubular solid oxide electrolysers

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects

High‐Temperature CO₂ Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects