Feasibility of alternative electrode materials for high temperature CO2 reduction on solid oxide electrolysis cell

Singh, Vandana; Muroyama, Hiroki; Matsui, Toshiaki; Hashigami, Satoshi; Inagaki, Toru; Eguchi, Koichi

doi:10.1016/j.jpowsour.2015.05.088

Cited by 65 publications

(29 citation statements)

References 38 publications

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“…Recently, several outstanding studies related to CO 2 capture and its conversion have been performed to solve this issue . Among these works, its conversion through high‐temperature co‐electrolysis of CO 2 and steam mixtures in solid oxide cells is noteworthy because of environmentally friendly conversion from CO 2 to value‐added gases or useful products …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Among these works, its conversion through high-temperature coelectrolysis of CO 2 and steam mixtures in solid oxide cells is noteworthy because of environmentally friendly conversion from CO 2 to value-added gases or useful products. [4][5][6][7][8][9][10][11][12][13] Previous studies on high-temperature co-electrolysis using solid oxide cells have investigated key features of their fuel electrode environment. [14][15][16][17][18][19] It was shown that the coexistence of CO 2 and steam makes the reacting environment significantly complex given simultaneous electrochemical and thermochemical reactions and their coupling with mass transfer.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis

et al. 2019

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Summary This study proposes a novel methodology for controlling syngas production from high‐temperature CO2/steam co‐electrolysis. The co‐electrolysis of CO2/steam mixtures is one of the most promising methods to reduce CO2 emissions and mitigate climate change. CO2 and steam are reduced to produce synthetic gas (H2 and CO) through thermo‐electrochemical reactions occurring in a solid‐oxide‐cell fuel electrode. To make this technology viable, it is essential to improve electrochemical cell performance and obtain controllability of gas conversion and product gas selectivity. In this study, Fe infiltration to the Ni/YSZ fuel electrode and subsequent in situ alloying of Ni‐Fe is used to enhance the cell performance and syngas productivity. Impregnation of Fe‐oxide nanoparticles on the fuel electrode support of solid oxide cells and subsequent in situ alloying Ni‐Fe is obtained. Their homogeneous morphology and distribution are obtained by using an advanced infiltration technique. Results show that the Ni‐Fe/YSZ fuel electrode enhances CO selectivity and lowers an overvoltage imposed on the cell. This may result in syngas production with higher carbon contents and a higher co‐electrolysis system efficiency. In addition, its long‐term durability for 500‐hour operation is also evidenced with stable syngas production and negligible cell degradation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis

et al. 2019

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“…Despite this, this catalyst possesses poor redox stabilities and requires a high concentration of H 2 to protect the Ni from oxidation. The cause for this is the agglomeration of Ni particles during long-term high-temperature operations [355][356][357]. This issue can be minimized, however, by using redox stable perovskite oxides as the hydrogen electrode.…”

Section: Non-noble Metalsmentioning

confidence: 99%

Recent Progresses in Electrocatalysts for Water Electrolysis

Khan

Zhao

Zou

et al. 2018

Electrochem. Energ. Rev.

307

171

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The study of hydrogen evolution reaction and oxygen evolution reaction electrocatalysts for water electrolysis is a developing field in which noble metal-based materials are commonly used. However, the associated high cost and low abundance of noble metals limit their practical application. Non-noble metal catalysts, aside from being inexpensive, highly abundant and environmental friendly, can possess high electrical conductivity, good structural tunability and comparable electrocatalytic performances to state-of-the-art noble metals, particularly in alkaline media, making them desirable candidates to reduce or replace noble metals as promising electrocatalysts for water electrolysis. This article will review and provide an overview of the fundamental knowledge related to water electrolysis with a focus on the development and progress of non-noble metal-based electrocatalysts in alkaline, polymer exchange membrane and solid oxide electrolysis. A critical analysis of the various catalysts currently available is also provided with discussions on current challenges and future perspectives. In addition, to facilitate future research and development, several possible research directions to overcome these challenges are provided in this article.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] In thesea pplications, mixed ionic and electronic conductors (MIECs) are widely used because of their high mixed ionic and electronic conductivity and high catalytic activity.T od evelop the above technologies, electrochemical, thermochemical, and photochemical reactions in the devices shouldb ew ell understood. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] In thesea pplications, mixed ionic and electronic conductors (MIECs) are widely used because of their high mixed ionic and electronic conductivity and high catalytic activity.T od evelop the above technologies, electrochemical, thermochemical, and photochemical reactions in the devices shouldb ew ell understood.…”

Section: Introductionmentioning

confidence: 99%

“…Energy conversion ands torage applications, such as fuel cells, electrolysis cells, rechargeable batteries, and thermochemical and photochemical catalysts, have gained great attention as highly efficient and environmentally friendly technologies. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] In thesea pplications, mixed ionic and electronic conductors (MIECs) are widely used because of their high mixed ionic and electronic conductivity and high catalytic activity.T od evelop the above technologies, electrochemical, thermochemical, and photochemical reactions in the devices shouldb ew ell understood. For this purpose, ad irect observation technique, which is available under working conditions of the devices, that is, controlled temperature, atmosphere, and polarization conditions, is as trong tool.…”

Section: Introductionmentioning

confidence: 99%

Operando Soft X‐ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction

et al. 2017

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An operando soft X-ray absorption spectroscopic technique, which enabled the analysis of the electronic structures of the electrode materials at elevated temperature in a controlled atmosphere and electrochemical polarization, was established and its availability was demonstrated by investigating the electronic structural changes of an La NiO dense-film electrode during an electrochemical oxygen reduction reaction. Clear O K-edge and Ni L-edge X-ray absorption spectra could be obtained below 773 K under an atmospheric pressure of 100 ppm O /He, 0.1 % O /He, and 1 % O /He gas mixtures. Considerable spectral changes were observed in the O K-edge X-ray absorption spectra upon changing the PO2 and application of electrical potential, whereas only small spectral changes were observed in Ni L-edge X-ray absorption spectra. A pre-edge peak of the O K-edge X-ray absorption spectra, which reflects the unoccupied partial density of states of Ni 3d-O 2p hybridization, increased or decreased with cathodic or anodic polarization, respectively. The electronic structural changes of the outermost orbital of the electrode material due to electrochemical polarization were successfully confirmed by the operando X-ray absorption spectroscopic technique developed in this study.

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Feasibility of alternative electrode materials for high temperature CO2 reduction on solid oxide electrolysis cell

Cited by 65 publications

References 38 publications

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis

Recent Progresses in Electrocatalysts for Water Electrolysis

Operando Soft X‐ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction

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Feasibility of alternative electrode materials for high temperature CO2 reduction on solid oxide electrolysis cell

Cited by 65 publications

References 38 publications

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO 2 co‐electrolysis

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO 2 co‐electrolysis

Recent Progresses in Electrocatalysts for Water Electrolysis

Operando Soft X‐ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction

Contact Info

Product

Resources

About

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis

Effect of Fe infiltration to Ni / YSZ solid‐oxide‐cell fuel electrode on steam/ CO ₂ co‐electrolysis