Electrochemical performance of Ni0.8Cu0.2/Ce0.8Gd0.2O1.9 cermet anodes with functionally graded structures for intermediate-temperature solid oxide fuel cell fueled with syngas

Michihiro Miyake; Makoto Iwami; Mizue Takeuchi; Shunsuke Nishimoto; Yoshikazu Kameshima

doi:10.1016/j.jpowsour.2018.04.051

Electrochemical performance of Ni_0.8Cu_0.2/Ce_0.8Gd_0.2O_1.9 cermet anodes with functionally graded structures for intermediate-temperature solid oxide fuel cell fueled with syngas

Michihiro Miyake, Makoto Iwami, Mizue Takeuchi, Shunsuke Nishimoto, Yoshikazu Kameshima

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The electrochemical performance of layered Ni_0.8Cu_0.2/Ce_0.8Gd_0.2O_1.9 (GDC) cermet anodes is investigated for intermediate-temperature solid oxide fuel cells (IT-SOFCs) at 600 °C using humidified (3% H₂O) model syngas with a molar ratio of H₂/CO = 3/2 as the fuel. From the results obtained, the electrochemical performance of the functionally graded multi-layered anodes is found to be superior to the mono-layered anodes. The test cell with a bi-layered anode consisting of 100 mass% Ni_0.8Cu_0.2/0 mass% GDC (10M/0E) and 70 mass% Ni_0.8Cu_0.2/30 mass% GDC (7M/3E) exhibits high power density. The test cell with a tri-layered anode consisting of 10M/0E, 7M/3E, and 50 mass% Ni_0.8Cu_0.2/50 mass% GDC (5M/5E) exhibits an even higher power density, suggesting that 10M/0E and 5M/5E layers contribute to the current collecting part and active part, respectively.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	Journal of Power Sources
Volume	390
DOIs	https://doi.org/10.1016/j.jpowsour.2018.04.051
Publication status	Published - Jun 30 2018

Keywords

Carbon deposition
Functionally graded structure
Intermediate-temperature solid oxide fuel cell
Layered NiCu/CeGdO cermet anode
Syngas fuel

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Electrochemical performance of Ni_0.8Cu_0.2/Ce_0.8Gd_0.2O_1.9 cermet anodes with functionally graded structures for intermediate-temperature solid oxide fuel cell fueled with syngas. / Miyake, Michihiro; Iwami, Makoto; Takeuchi, Mizue; Nishimoto, Shunsuke ; Kameshima, Yoshikazu.

In: Journal of Power Sources, Vol. 390, 30.06.2018, p. 181-185.

Research output: Contribution to journal › Article › peer-review

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title = "Electrochemical performance of Ni0.8Cu0.2/Ce0.8Gd0.2O1.9 cermet anodes with functionally graded structures for intermediate-temperature solid oxide fuel cell fueled with syngas",

abstract = "The electrochemical performance of layered Ni0.8Cu0.2/Ce0.8Gd0.2O1.9 (GDC) cermet anodes is investigated for intermediate-temperature solid oxide fuel cells (IT-SOFCs) at 600 °C using humidified (3% H2O) model syngas with a molar ratio of H2/CO = 3/2 as the fuel. From the results obtained, the electrochemical performance of the functionally graded multi-layered anodes is found to be superior to the mono-layered anodes. The test cell with a bi-layered anode consisting of 100 mass% Ni0.8Cu0.2/0 mass% GDC (10M/0E) and 70 mass% Ni0.8Cu0.2/30 mass% GDC (7M/3E) exhibits high power density. The test cell with a tri-layered anode consisting of 10M/0E, 7M/3E, and 50 mass% Ni0.8Cu0.2/50 mass% GDC (5M/5E) exhibits an even higher power density, suggesting that 10M/0E and 5M/5E layers contribute to the current collecting part and active part, respectively.",

keywords = "Carbon deposition, Functionally graded structure, Intermediate-temperature solid oxide fuel cell, Layered NiCu/CeGdO cermet anode, Syngas fuel",

author = "Michihiro Miyake and Makoto Iwami and Mizue Takeuchi and Shunsuke Nishimoto and Yoshikazu Kameshima",

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AU - Miyake, Michihiro

AU - Iwami, Makoto

AU - Takeuchi, Mizue

AU - Nishimoto, Shunsuke

AU - Kameshima, Yoshikazu

PY - 2018/6/30

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AB - The electrochemical performance of layered Ni0.8Cu0.2/Ce0.8Gd0.2O1.9 (GDC) cermet anodes is investigated for intermediate-temperature solid oxide fuel cells (IT-SOFCs) at 600 °C using humidified (3% H2O) model syngas with a molar ratio of H2/CO = 3/2 as the fuel. From the results obtained, the electrochemical performance of the functionally graded multi-layered anodes is found to be superior to the mono-layered anodes. The test cell with a bi-layered anode consisting of 100 mass% Ni0.8Cu0.2/0 mass% GDC (10M/0E) and 70 mass% Ni0.8Cu0.2/30 mass% GDC (7M/3E) exhibits high power density. The test cell with a tri-layered anode consisting of 10M/0E, 7M/3E, and 50 mass% Ni0.8Cu0.2/50 mass% GDC (5M/5E) exhibits an even higher power density, suggesting that 10M/0E and 5M/5E layers contribute to the current collecting part and active part, respectively.

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