Electrochemical reduction of carbon dioxide on hydrogen-storing materials: Part 4. Electrochemical behavior of the Pd electrode in aqueous and nonaqueous electrolyte

Ohkawa, Kiyomi; Noguchi, Yasuhisa; Nakayama, Sumie; Hashimoto, Kazuhito; Fujishima, Akira

doi:10.1016/0022-0728(94)87105-1

Cited by 22 publications

(13 citation statements)

References 13 publications

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“…3. This slope is in agreement with those for electrochemical CO 2 reduction to CO reported by several authors for aqueous media 40 and non-aqueous media, 29 as well as that for the photoelectrochemical reaction reported by Bockris and coworkers using p-CdTe in DMF containing 5% water. 41,42 Photoelectrochemical reaction mechanism for CO 2 reduction…”

Section: Current±potential Curves For Photoelectrochemical Co 2 Reducsupporting

confidence: 92%

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Tryk

Yamamoto

Kokubun

et al. 2001

Appl. Organometal. Chem.

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Electrochemical CO 2 reduction was examined on high-area transition metal catalysts supported on nanoporous activated carbon fiber (ACF) supports, in the form of gas diffusion electrodes, in aqueous KHCO 3 solution. The most active catalyst was ACF/Ni, on which up to ca 65 mA cm À2 current density for CO production was observed, with simultaneous production of hydrogen of ca 15 mA cm À2 at À1.6 V vs SCE. At more negative potentials, higher H 2 /CO ratios can be obtained. The reaction mechanism for CO production probably involves a chemical reaction between CO 2 and the radical anion CO 2 .À to produce the CO 2 dimer radical anion (CO 2 ) 2 .À . The results are compared with those for photoelectrochemical CO 2 reduction on p-InP, on which the mechanism is thought to involve the one-electron reduction of two adsorbed CO 2 molecules to produce the CO 2 dimer radical anion.In contrast to the behavior for hydrogen evolution, the PCD values for CO 2 reduction did not vary greatly with potential. However, the values varied considerably for the different catalysts. As already described, the ACF/Ni catalyst exhibited the high-

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Section: Current±potential Curves For Photoelectrochemical Co 2 Reducsupporting

confidence: 92%

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Tryk

Yamamoto

Kokubun

et al. 2001

Appl. Organometal. Chem.

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“…Taking Pd metal as an example, its main product of CO 2 electroreduction can be altered from CO to formate with an FE over 90%, by increasing the concentration of KHCO 3 solution from 0.1 to 0.5 m . As the absorbed hydrogen atoms are involved with the formation of CO and formate on Pd catalysts, a higher supply of hydrogen atoms by the relatively concentrated HCO 3 − leads to an enhanced hydrogen adsorption at the electrode/electrolyte interface, thus making formate the exclusive product in 0.5 m KHCO 3 solution …”

Section: Option Of Electrolytesmentioning

confidence: 99%

Tuning of CO₂ Reduction Selectivity on Metal Electrocatalysts

Wang

Liu

Wang

et al. 2017

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Climate change, caused by heavy CO emissions, is driving new demands to alleviate the rising concentration of atmospheric CO levels. Enlightened by the photosynthesis of green plants, photo(electro)chemical catalysis of CO reduction, also known as artificial photosynthesis, is emerged as a promising candidate to address these demands and is widely investigated during the past decade. Among various artificial photosynthetic systems, solar-driven electrochemical CO reduction is widely recognized to possess high efficiencies and potentials for practical application. The efficient and selective electroreduction of CO is the key to the overall solar-to-chemical efficiency of artificial photosynthesis. Recent studies show that various metallic materials possess the capability to play as electrocatalysts for CO reduction. In order to achieve high selectivity for CO reduction products, various efforts are made including studies on electrolytes, crystal facets, oxide-derived catalysts, electronic and geometric structures, nanostructures, and mesoscale phenomena. In this Review, these methods for tuning the selectivity of CO electrochemical reduction of metallic catalysts are summarized. The challenges and perspectives in this field are also discussed.

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“…Metal hydrogen alloys such as Pd-H are an interesting example. It was observed that CO 2 reduction is highly enhanced with alloy metal [39,40].…”

Section: Effect Of Electrode Materialsmentioning

confidence: 86%

Electrocatalytic Reduction of CO ₂ in Methanol Medium

Murugananthan¹,

Kaneco²,

Katsumata³

et al. 2014

Green Carbon Dioxide

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Electrochemical reduction of carbon dioxide on hydrogen-storing materials: Part 4. Electrochemical behavior of the Pd electrode in aqueous and nonaqueous electrolyte

Cited by 22 publications

References 13 publications

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Tuning of CO₂ Reduction Selectivity on Metal Electrocatalysts

Electrocatalytic Reduction of CO ₂ in Methanol Medium

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Electrochemical reduction of carbon dioxide on hydrogen-storing materials: Part 4. Electrochemical behavior of the Pd electrode in aqueous and nonaqueous electrolyte

Cited by 22 publications

References 13 publications

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Recent developments in electrochemical and photoelectrochemical CO2 reduction: involvement of the (CO2)2. ? dimer radical anion

Tuning of CO2 Reduction Selectivity on Metal Electrocatalysts

Electrocatalytic Reduction of CO 2 in Methanol Medium

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Tuning of CO₂ Reduction Selectivity on Metal Electrocatalysts

Electrocatalytic Reduction of CO ₂ in Methanol Medium