Advanced materials for global carbon dioxide recycling

Hashimoto, Kôji; Habazaki, H.; Yamasaki, Michiaki; Meguro, Shinsaku; Sasaki, Teikichi A.; Katagiri, Hiroshi; Matsui, Teppei; Fujimura, Kaori; Izumiya, Koichi; Kumagai, Naokazu; Akiyama, Eiji

doi:10.1016/s0921-5093(00)01457-x

Cited by 60 publications

(34 citation statements)

References 13 publications

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“…[1][2][3] Electrochemical reduction of CO 2 (CO2R) has been proposed as one possible technology for the production of fuels from CO 2 using electricity obtained from renewable sources. [4][5][6][7] Studies of CO2R in aqueous solution date back to the 1950s, 8 and an extensive and thorough body of work was published by Hori and co-workers starting in the 1980s.…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

Lobaccaro

Singh

Clark

et al. 2016

Phys. Chem. Chem. Phys.

154

182

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TitleEffects of temperature and gas-liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO2 reduction electrocatalysts In the last few years, there has been increased interest in electrochemical CO 2 reduction (CO2R). Many experimental studies employ a membrane separated, electrochemical cell with a mini H-cell geometry to characterize CO2R catalysts in aqueous solution. This type of electrochemical cell is a mini-chemical reactor and it is important to monitor the reaction conditions within the reactor to ensure that they are constant throughout the study. We show that operating cells with high catalyst surface area to electrolyte volume ratios (S/V) at high current densities can have subtle consequences due to the complexity of the physical phenomena taking place on electrode surfaces during CO2R, particularly as they relate to the cell temperature and bulk electrolyte CO 2 concentration. Both effects were evaluated quantitatively in high S/V cells using Cu electrodes and a bicarbonate buffer electrolyte. Electrolyte temperature is a function of the current/total voltage passed through the cell and the cell geometry.Even at a very high current density, 20 mA cm À2 , the temperature increase was less than 4 1C and a decrease of o10% in the dissolved CO 2 concentration is predicted. In contrast, limits on the CO 2 gas-liquid mass transfer into the cells produce much larger effects. By using the pH in the cell to measure the CO 2 concentration, significant undersaturation of CO 2 is observed in the bulk electrolyte, even at more modest current densities of 10 mA cm À2 . Undersaturation of CO 2 produces large changes in the faradaic efficiency observed on Cu electrodes, with H 2 production becoming increasingly favored. We show that the size of the CO 2 bubbles being introduced into the cell is critical for maintaining the equilibrium CO 2 concentration in the electrolyte, and we have designed a high S/V cell that is able to maintain the near-equilibrium CO 2 concentration at current densities up to 15 mA cm À2 .

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Section: Introductionmentioning

confidence: 99%

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

Lobaccaro

Singh

Clark

et al. 2016

Phys. Chem. Chem. Phys.

154

182

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“…Electrochemistry is an important enabling technology because this involves converting electrical energy to chemical energy. In one study, CO 2 reacted with electrolytic hydrogen to produce methanol and water (14)(15)(16), while in another concept, methane was produced when CO 2 reacted with electrolytic hydrogen (with condensation of water to shift the equilibrium and achieve good yields) (17). However, direct electrochemical reduction of CO 2 to hydrocarbons would be more efficient, simpler and time saving.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: An overview of CO₂ electroreduction into hydrocarbons and liquid fuels on nanostructured copper catalysts

Abbas

Ullah

Ali

et al. 2016

Green Chemistry Letters and Reviews

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The increasing atmospheric levels of carbon dioxide (CO 2 ) must be controlled or better reverted to avoid undesirable climate changes. The electrochemical reduction of CO 2 into hydrocarbons is the best approach to solve this problem because it will recycle the 'spent' CO 2 , known as carbon neutral cycle, and will probably be able to remit the energy crises. Nanostructured copper is a novel material known for the efficient and selective reduction of CO 2 into hydrocarbons. This review attempts to summarize the recent development of enlarged surface area nanostructured copper for the efficient reduction of CO 2 into hydrocarbons using renewable energy resources at low overpotentials. The effects of different reaction conditions (e.g. applied potential, CO 2 concentration and electrode surface) on the products and some relationships between these conditions and products are discussed here. Latest achievements in the CO 2 electroreduction technology, remaining challenges and perspective research directions for practical applications are also presented. ARTICLE HISTORY

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“…[1][2][3][4][5][6][7] Global carbon dioxide recycling consists of power generation by solar cell on deserts, hydrogen production by seawater electrolysis at nearby desert coasts, and methane production by the reaction of hydrogen with carbon dioxide at the desert coasts. Because fresh water is not available at desert coasts, one of the key processes is seawater electrolysis by which we should produce hydrogen and oxygen on the cathode and the anode, respectively.…”

Section: Introductionmentioning

confidence: 99%

Anodically Deposited Mn-Mo-Fe Oxide Anodes for Oxygen Evolution in Hot Seawater Electrolysis

et al. 2003

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Advanced materials for global carbon dioxide recycling

Cited by 60 publications

References 13 publications

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

RETRACTED ARTICLE: An overview of CO₂ electroreduction into hydrocarbons and liquid fuels on nanostructured copper catalysts

Anodically Deposited Mn-Mo-Fe Oxide Anodes for Oxygen Evolution in Hot Seawater Electrolysis

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Advanced materials for global carbon dioxide recycling

Cited by 60 publications

References 13 publications

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO2reduction electrocatalysts

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO2reduction electrocatalysts

RETRACTED ARTICLE: An overview of CO2 electroreduction into hydrocarbons and liquid fuels on nanostructured copper catalysts

Anodically Deposited Mn-Mo-Fe Oxide Anodes for Oxygen Evolution in Hot Seawater Electrolysis

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Product

Resources

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Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO₂reduction electrocatalysts

RETRACTED ARTICLE: An overview of CO₂ electroreduction into hydrocarbons and liquid fuels on nanostructured copper catalysts