A novel core-shell nanocomposite electrolyte for low temperature fuel cells

Junsheng Wu; Bin Zhu; Youquan Mi; Shao Ju Shih; Jun Wei; Yizhong Huang

doi:10.1016/j.jpowsour.2011.10.084

A novel core-shell nanocomposite electrolyte for low temperature fuel cells

Junsheng Wu, Bin Zhu, Youquan Mi, Shao Ju Shih, Jun Wei, Yizhong Huang^*

^*Corresponding author for this work

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

27 Citations (Scopus)

Abstract

We report a rapid and cost-effective method to coat SDC nano-particles with a thin LiZn-oxide nanocomposite layer. This composite is determined to have a structure with two phases consisting of Li ₂O and ZnO and examined to distribute over the surfaces of SDC nano-particles uniformly by using energy dispersive X-ray (EDX) and high-resolution TEM (HRTEM). The measurments of electrical property demonstrate that such a thin layer enables the ionic conductivity of SDC to be significantly increased (higher than 0.1 S cm ^-1 at the temperature of 300 °C) equivalent to the conductivity of pure SDC at 800 °C or YSZ at 1000 °C. This superionic conductivity is caused by the two-phase interfaces formed between nano-particles.

Original language	English
Pages (from-to)	164-168
Number of pages	5
Journal	Journal of Power Sources
Volume	201
DOIs	https://doi.org/10.1016/j.jpowsour.2011.10.084
Publication status	Published - Mar 1 2012
Externally published	Yes

ASJC Scopus Subject Areas

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

Keywords

Electrolyte
Ionic conductivity
Low temperature fuel cells
SDC core-shell nanocomposite

UN SDGs

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

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10.1016/j.jpowsour.2011.10.084

Cite this

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title = "A novel core-shell nanocomposite electrolyte for low temperature fuel cells",

abstract = "We report a rapid and cost-effective method to coat SDC nano-particles with a thin LiZn-oxide nanocomposite layer. This composite is determined to have a structure with two phases consisting of Li 2O and ZnO and examined to distribute over the surfaces of SDC nano-particles uniformly by using energy dispersive X-ray (EDX) and high-resolution TEM (HRTEM). The measurments of electrical property demonstrate that such a thin layer enables the ionic conductivity of SDC to be significantly increased (higher than 0.1 S cm -1 at the temperature of 300 °C) equivalent to the conductivity of pure SDC at 800 °C or YSZ at 1000 °C. This superionic conductivity is caused by the two-phase interfaces formed between nano-particles.",

keywords = "Electrolyte, Ionic conductivity, Low temperature fuel cells, SDC core-shell nanocomposite",

author = "Junsheng Wu and Bin Zhu and Youquan Mi and Shih, {Shao Ju} and Jun Wei and Yizhong Huang",

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T1 - A novel core-shell nanocomposite electrolyte for low temperature fuel cells

AU - Wu, Junsheng

AU - Zhu, Bin

AU - Mi, Youquan

AU - Shih, Shao Ju

AU - Wei, Jun

AU - Huang, Yizhong

PY - 2012/3/1

Y1 - 2012/3/1

N2 - We report a rapid and cost-effective method to coat SDC nano-particles with a thin LiZn-oxide nanocomposite layer. This composite is determined to have a structure with two phases consisting of Li 2O and ZnO and examined to distribute over the surfaces of SDC nano-particles uniformly by using energy dispersive X-ray (EDX) and high-resolution TEM (HRTEM). The measurments of electrical property demonstrate that such a thin layer enables the ionic conductivity of SDC to be significantly increased (higher than 0.1 S cm -1 at the temperature of 300 °C) equivalent to the conductivity of pure SDC at 800 °C or YSZ at 1000 °C. This superionic conductivity is caused by the two-phase interfaces formed between nano-particles.

AB - We report a rapid and cost-effective method to coat SDC nano-particles with a thin LiZn-oxide nanocomposite layer. This composite is determined to have a structure with two phases consisting of Li 2O and ZnO and examined to distribute over the surfaces of SDC nano-particles uniformly by using energy dispersive X-ray (EDX) and high-resolution TEM (HRTEM). The measurments of electrical property demonstrate that such a thin layer enables the ionic conductivity of SDC to be significantly increased (higher than 0.1 S cm -1 at the temperature of 300 °C) equivalent to the conductivity of pure SDC at 800 °C or YSZ at 1000 °C. This superionic conductivity is caused by the two-phase interfaces formed between nano-particles.

KW - Electrolyte

KW - Ionic conductivity

KW - Low temperature fuel cells

KW - SDC core-shell nanocomposite

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DO - 10.1016/j.jpowsour.2011.10.084

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A novel core-shell nanocomposite electrolyte for low temperature fuel cells

Abstract

ASJC Scopus Subject Areas

Keywords

UN SDGs

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