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

7 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

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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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