Enhanced Stability and Catalytic Activity on Layered Perovskite Anode for High-Performance Hybrid Direct Carbon Fuel Cells

Minjian Ma; Jinshuo Qiao; Xiaoxia Yang; Chunming Xu; Rongzheng Ren; Wang Sun; Kening Sun; Zhenhua Wang

doi:10.1021/acsami.0c02866

Enhanced Stability and Catalytic Activity on Layered Perovskite Anode for High-Performance Hybrid Direct Carbon Fuel Cells

Minjian Ma, Jinshuo Qiao, Xiaoxia Yang, Chunming Xu, Rongzheng Ren, Wang Sun, Kening Sun, Zhenhua Wang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

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

29 Citations (Scopus)

Abstract

In this work, we investigate a novel A-site ordered layered perovskite oxide, (PrBa)_0.95Fe_1.8-xCu_xNb_0.2O_5+δ (PBFCN), as an anode material for hybrid direct carbon fuel cells (HDCFCs). We study the effect of anode composition on the electrochemical performance of HDCFCs. The electrolyte-supported single cell with (PrBa)_0.95Fe_1.4Cu_0.4Nb_0.2O_5+δ (PBFCu_0.4N) anode achieves the highest peak power density of 431 mW cm^-2 at 800 °C with activated carbon as the fuel. Moreover, a power generation unit is also made to demonstrate the practical utilization of PBFCN, which delivers a peak power of 0.51 W at 800 °C without any carrier gas, and a small fan can operate for more than 10 h by using the as-fabricated HDCFC as a power generation unit. The PBFCN anode achieves greatly enhanced catalytic activity by improving the chemical adsorption and electrochemical oxidation of CO at the anode/CO interface, which is mainly due to the high-activity Cu ions in PBFCN. The inactive element Nb doping and ordered layered structure endow the material with excellent redox structural stability. The present study provides a new idea for the design and development of high-performance anode materials for HDCFCs applications.

Original language	English
Pages (from-to)	12938-12948
Number of pages	11
Journal	ACS applied materials & interfaces
Volume	12
Issue number	11
DOIs	https://doi.org/10.1021/acsami.0c02866
Publication status	Published - 18 Mar 2020

Keywords

anode
chemisorption
energy conversion
hybrid direct carbon fuel cell
perovskite oxide
solid carbon

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10.1021/acsami.0c02866

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title = "Enhanced Stability and Catalytic Activity on Layered Perovskite Anode for High-Performance Hybrid Direct Carbon Fuel Cells",

abstract = "In this work, we investigate a novel A-site ordered layered perovskite oxide, (PrBa)0.95Fe1.8-xCuxNb0.2O5+δ (PBFCN), as an anode material for hybrid direct carbon fuel cells (HDCFCs). We study the effect of anode composition on the electrochemical performance of HDCFCs. The electrolyte-supported single cell with (PrBa)0.95Fe1.4Cu0.4Nb0.2O5+δ (PBFCu0.4N) anode achieves the highest peak power density of 431 mW cm-2 at 800 °C with activated carbon as the fuel. Moreover, a power generation unit is also made to demonstrate the practical utilization of PBFCN, which delivers a peak power of 0.51 W at 800 °C without any carrier gas, and a small fan can operate for more than 10 h by using the as-fabricated HDCFC as a power generation unit. The PBFCN anode achieves greatly enhanced catalytic activity by improving the chemical adsorption and electrochemical oxidation of CO at the anode/CO interface, which is mainly due to the high-activity Cu ions in PBFCN. The inactive element Nb doping and ordered layered structure endow the material with excellent redox structural stability. The present study provides a new idea for the design and development of high-performance anode materials for HDCFCs applications.",

keywords = "anode, chemisorption, energy conversion, hybrid direct carbon fuel cell, perovskite oxide, solid carbon",

author = "Minjian Ma and Jinshuo Qiao and Xiaoxia Yang and Chunming Xu and Rongzheng Ren and Wang Sun and Kening Sun and Zhenhua Wang",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

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AU - Ma, Minjian

AU - Qiao, Jinshuo

AU - Yang, Xiaoxia

AU - Xu, Chunming

AU - Ren, Rongzheng

AU - Sun, Wang

AU - Sun, Kening

AU - Wang, Zhenhua

PY - 2020/3/18

Y1 - 2020/3/18

N2 - In this work, we investigate a novel A-site ordered layered perovskite oxide, (PrBa)0.95Fe1.8-xCuxNb0.2O5+δ (PBFCN), as an anode material for hybrid direct carbon fuel cells (HDCFCs). We study the effect of anode composition on the electrochemical performance of HDCFCs. The electrolyte-supported single cell with (PrBa)0.95Fe1.4Cu0.4Nb0.2O5+δ (PBFCu0.4N) anode achieves the highest peak power density of 431 mW cm-2 at 800 °C with activated carbon as the fuel. Moreover, a power generation unit is also made to demonstrate the practical utilization of PBFCN, which delivers a peak power of 0.51 W at 800 °C without any carrier gas, and a small fan can operate for more than 10 h by using the as-fabricated HDCFC as a power generation unit. The PBFCN anode achieves greatly enhanced catalytic activity by improving the chemical adsorption and electrochemical oxidation of CO at the anode/CO interface, which is mainly due to the high-activity Cu ions in PBFCN. The inactive element Nb doping and ordered layered structure endow the material with excellent redox structural stability. The present study provides a new idea for the design and development of high-performance anode materials for HDCFCs applications.

AB - In this work, we investigate a novel A-site ordered layered perovskite oxide, (PrBa)0.95Fe1.8-xCuxNb0.2O5+δ (PBFCN), as an anode material for hybrid direct carbon fuel cells (HDCFCs). We study the effect of anode composition on the electrochemical performance of HDCFCs. The electrolyte-supported single cell with (PrBa)0.95Fe1.4Cu0.4Nb0.2O5+δ (PBFCu0.4N) anode achieves the highest peak power density of 431 mW cm-2 at 800 °C with activated carbon as the fuel. Moreover, a power generation unit is also made to demonstrate the practical utilization of PBFCN, which delivers a peak power of 0.51 W at 800 °C without any carrier gas, and a small fan can operate for more than 10 h by using the as-fabricated HDCFC as a power generation unit. The PBFCN anode achieves greatly enhanced catalytic activity by improving the chemical adsorption and electrochemical oxidation of CO at the anode/CO interface, which is mainly due to the high-activity Cu ions in PBFCN. The inactive element Nb doping and ordered layered structure endow the material with excellent redox structural stability. The present study provides a new idea for the design and development of high-performance anode materials for HDCFCs applications.

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KW - chemisorption

KW - energy conversion

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KW - perovskite oxide

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Enhanced Stability and Catalytic Activity on Layered Perovskite Anode for High-Performance Hybrid Direct Carbon Fuel Cells

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