In situ reconstruction of multi-phase heterostructured anodes for efficient and durable solid oxide fuel cells

Tian Gan; Bin Sheng; Quanyu Zeng; Yuchen Li; Yujun Han; Wenya Zhen; Ping Li; Yongdan Li

doi:10.1016/j.cej.2024.157315

In situ reconstruction of multi-phase heterostructured anodes for efficient and durable solid oxide fuel cells

Tian Gan^*
, Bin Sheng
, Quanyu Zeng
, Yuchen Li
, Yujun Han
, Wenya Zhen
, Ping Li
, Yongdan Li^*

^*Corresponding author for this work

Suzhou University of Science and Technology
Tianjin University
North China Electric Power University

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

11 Citations (Scopus)

105 Downloads (Pure)

Abstract

A high-performance anode of a solid oxide fuel cell (SOFC) should possess excellent electrocatalytic activity, high oxygen-ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties of the electrode materials. Constructing heterostructures to obtain high electrocatalytic activity catalysts is an essential but challenging research direction. Herein, a novel composite anode constructed with multiphase nanoparticles is rationally designed and prepared using intelligent in situ reconstruction technique. The self-assembled La_0.9Ce_0.1Ni_0.7Co_0.15Fe_0.15O_3-δ-Sm_0.2Ce_0.8O₂ (LCNCF-SDC) anode was in situ reconstructed under reducing atmosphere to form uniform NiCoFe/CeO₂/La₂O₃ multiphase heterostructures. As a result, the maximum power densities of a cell supported by 500 μm-thick Ce_0.8Sm_0.2O_2-δ-carbonate electrolyte layer with the LCNCF-SDC anode reach 1.34 and 1.56 W cm⁻² at 700 °C, respectively for using H₂ and methanol as fuels. The synergy between multiphase nanoparticles contributes to the enhanced catalytic activity and stability. This anode demonstrates negligible degradation over 15 h in CH₃OH, indicating a significantly enhanced coking resistance.

Original language	English
Article number	157315
Number of pages	10
Journal	Chemical Engineering Journal
Volume	500
DOIs	https://doi.org/10.1016/j.cej.2024.157315
Publication status	Published - 15 Nov 2024
MoE publication type	A1 Journal article-refereed

Funding

The financial support from the Natural Science Foundation of Jiangsu (No. BK20240997), Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 23KJB430033), and the Start-up Fund of Suzhou University of Science and Technology.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode
Heterostructure
In situ reconstruction
Self-assembly
Solid oxide fuel cell

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CHEM_Gan_et_al_In_situ_reconstruction_2024_Chem_Eng_JFinal published version, 7.91 MBLicence: CC BY

Cite this

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title = "In situ reconstruction of multi-phase heterostructured anodes for efficient and durable solid oxide fuel cells",

abstract = "A high-performance anode of a solid oxide fuel cell (SOFC) should possess excellent electrocatalytic activity, high oxygen-ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties of the electrode materials. Constructing heterostructures to obtain high electrocatalytic activity catalysts is an essential but challenging research direction. Herein, a novel composite anode constructed with multiphase nanoparticles is rationally designed and prepared using intelligent in situ reconstruction technique. The self-assembled La0.9Ce0.1Ni0.7Co0.15Fe0.15O3-δ-Sm0.2Ce0.8O2 (LCNCF-SDC) anode was in situ reconstructed under reducing atmosphere to form uniform NiCoFe/CeO2/La2O3 multiphase heterostructures. As a result, the maximum power densities of a cell supported by 500 μm-thick Ce0.8Sm0.2O2-δ-carbonate electrolyte layer with the LCNCF-SDC anode reach 1.34 and 1.56 W cm−2 at 700 °C, respectively for using H2 and methanol as fuels. The synergy between multiphase nanoparticles contributes to the enhanced catalytic activity and stability. This anode demonstrates negligible degradation over 15 h in CH3OH, indicating a significantly enhanced coking resistance.",

keywords = "Anode, Heterostructure, In situ reconstruction, Self-assembly, Solid oxide fuel cell",

author = "Tian Gan and Bin Sheng and Quanyu Zeng and Yuchen Li and Yujun Han and Wenya Zhen and Ping Li and Yongdan Li",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2024",

month = nov,

day = "15",

doi = "10.1016/j.cej.2024.157315",

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T1 - In situ reconstruction of multi-phase heterostructured anodes for efficient and durable solid oxide fuel cells

AU - Gan, Tian

AU - Sheng, Bin

AU - Zeng, Quanyu

AU - Li, Yuchen

AU - Han, Yujun

AU - Zhen, Wenya

AU - Li, Ping

AU - Li, Yongdan

PY - 2024/11/15

Y1 - 2024/11/15

N2 - A high-performance anode of a solid oxide fuel cell (SOFC) should possess excellent electrocatalytic activity, high oxygen-ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties of the electrode materials. Constructing heterostructures to obtain high electrocatalytic activity catalysts is an essential but challenging research direction. Herein, a novel composite anode constructed with multiphase nanoparticles is rationally designed and prepared using intelligent in situ reconstruction technique. The self-assembled La0.9Ce0.1Ni0.7Co0.15Fe0.15O3-δ-Sm0.2Ce0.8O2 (LCNCF-SDC) anode was in situ reconstructed under reducing atmosphere to form uniform NiCoFe/CeO2/La2O3 multiphase heterostructures. As a result, the maximum power densities of a cell supported by 500 μm-thick Ce0.8Sm0.2O2-δ-carbonate electrolyte layer with the LCNCF-SDC anode reach 1.34 and 1.56 W cm−2 at 700 °C, respectively for using H2 and methanol as fuels. The synergy between multiphase nanoparticles contributes to the enhanced catalytic activity and stability. This anode demonstrates negligible degradation over 15 h in CH3OH, indicating a significantly enhanced coking resistance.

AB - A high-performance anode of a solid oxide fuel cell (SOFC) should possess excellent electrocatalytic activity, high oxygen-ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties of the electrode materials. Constructing heterostructures to obtain high electrocatalytic activity catalysts is an essential but challenging research direction. Herein, a novel composite anode constructed with multiphase nanoparticles is rationally designed and prepared using intelligent in situ reconstruction technique. The self-assembled La0.9Ce0.1Ni0.7Co0.15Fe0.15O3-δ-Sm0.2Ce0.8O2 (LCNCF-SDC) anode was in situ reconstructed under reducing atmosphere to form uniform NiCoFe/CeO2/La2O3 multiphase heterostructures. As a result, the maximum power densities of a cell supported by 500 μm-thick Ce0.8Sm0.2O2-δ-carbonate electrolyte layer with the LCNCF-SDC anode reach 1.34 and 1.56 W cm−2 at 700 °C, respectively for using H2 and methanol as fuels. The synergy between multiphase nanoparticles contributes to the enhanced catalytic activity and stability. This anode demonstrates negligible degradation over 15 h in CH3OH, indicating a significantly enhanced coking resistance.

KW - Anode

KW - Heterostructure

KW - In situ reconstruction

KW - Self-assembly

KW - Solid oxide fuel cell

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DO - 10.1016/j.cej.2024.157315

M3 - Article

AN - SCOPUS:85208056143

SN - 1385-8947

VL - 500

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 157315

ER -

In situ reconstruction of multi-phase heterostructured anodes for efficient and durable solid oxide fuel cells

Abstract

Funding

UN SDGs

Keywords

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