Novel Perovskite Semiconductor Based on Co/Fe-Codoped LBZY (La0.5Ba0.5Co0.2Fe0.2Zr0.3Y0.3O3-δ) as an Electrolyte in Ceramic Fuel Cells

M. A.K.Yousaf Shah; Sajid Rauf; Naveed Mushtaq; Bin Zhu; Zuhra Tayyab; Muhammad Yousaf; Muhammad Bilal Hanif; Peter D. Lund; Yuzheng Lu; Muhammad Imran Asghar

doi:10.1021/acsaem.1c00599

Novel Perovskite Semiconductor Based on Co/Fe-Codoped LBZY (La_0.5Ba_0.5Co_0.2Fe_0.2Zr_0.3Y_0.3O_3-δ) as an Electrolyte in Ceramic Fuel Cells

M. A.K.Yousaf Shah, Sajid Rauf, Naveed Mushtaq, Bin Zhu, Zuhra Tayyab, Muhammad Yousaf, Muhammad Bilal Hanif, Peter D. Lund, Yuzheng Lu, Muhammad Imran Asghar

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

43 Sitaatiot (Scopus)

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Abstrakti

Introducing triple-charge (H+/O2-/e-) conducting materials is a promising alternative to modify a cathode as an electrolyte in advanced ceramic fuel cells (CFC). Herein, we designed a novel triple-charge conducting perovskite-structured semiconductor Co0.2/Fe0.2-codoped La0.5Ba0.5Zr0.3Y0.3O3-δ (CF-LBZY) and used as an electrolyte and an electrode. CF-LBZY perovskite as an electrolyte exhibited high ionic (O2-/H+) conductivity of 0.23 S/cm and achieved a remarkable power density of 656 mW/cm2 550 °C. X-ray photoelectron spectroscopy (XPS) analysis revealed that the Co/Fe codoping supports the formation of oxygen vacancies at the B-site of a perovskite structure. Besides, using CF-LBZY as a cathode, the fuel cell delivered 150 and 177 mW/cm2 at 550 °C, respectively, where Y-doped BaZrO3 and Sm-doped ceria (SDC) were used as electrolytes. During the fuel-cell operation, H+ injection into the CF-LBZY electrolyte may suppress electronic conduction. Furthermore, the metal-semiconductor junction (Schottky junction) has been proposed by considering the work function and electron affinity to interpret short-circuiting avoidance in our device. The current systematic study indicates that triple-charge conduction in CF-LBZYO3-δ has potential to boost the electrochemical performance in advanced low-temperature fuel-cell technology.

Alkuperäiskieli	Englanti
Sivut	5798-5808
Sivumäärä	11
Julkaisu	ACS Applied Energy Materials
Vuosikerta	4
Numero	6
Varhainen verkossa julkaisun päivämäärä	2021
DOI - pysyväislinkit	https://doi.org/10.1021/acsaem.1c00599
Tila	Julkaistu - 28 kesäk. 2021
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1021/acsaem.1c00599Lisenssi: CC BY

Novel Perovskite Semiconductor Based on CoFe-Codoped LBZY.acsaem.1c00599-1Final published version, 7,99 MBLisenssi: CC BY

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Seuraavan sukupolven johtavat polttokennot
Asghar, I. (Vastuullinen tutkija), Bilbey, B. (Projektin jäsen), Jouttijärvi, S. (Projektin jäsen) & Zarabi Golkhatmi, S. (Projektin jäsen)
01/09/2019 → 31/08/2022
Projekti: Academy of Finland: Other research funding

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@article{705d8aa580ad46d6a58eea68299deb05,

title = "Novel Perovskite Semiconductor Based on Co/Fe-Codoped LBZY (La0.5Ba0.5Co0.2Fe0.2Zr0.3Y0.3O3-δ) as an Electrolyte in Ceramic Fuel Cells",

abstract = "Introducing triple-charge (H+/O2-/e-) conducting materials is a promising alternative to modify a cathode as an electrolyte in advanced ceramic fuel cells (CFC). Herein, we designed a novel triple-charge conducting perovskite-structured semiconductor Co0.2/Fe0.2-codoped La0.5Ba0.5Zr0.3Y0.3O3-δ (CF-LBZY) and used as an electrolyte and an electrode. CF-LBZY perovskite as an electrolyte exhibited high ionic (O2-/H+) conductivity of 0.23 S/cm and achieved a remarkable power density of 656 mW/cm2 550 °C. X-ray photoelectron spectroscopy (XPS) analysis revealed that the Co/Fe codoping supports the formation of oxygen vacancies at the B-site of a perovskite structure. Besides, using CF-LBZY as a cathode, the fuel cell delivered 150 and 177 mW/cm2 at 550 °C, respectively, where Y-doped BaZrO3 and Sm-doped ceria (SDC) were used as electrolytes. During the fuel-cell operation, H+ injection into the CF-LBZY electrolyte may suppress electronic conduction. Furthermore, the metal-semiconductor junction (Schottky junction) has been proposed by considering the work function and electron affinity to interpret short-circuiting avoidance in our device. The current systematic study indicates that triple-charge conduction in CF-LBZYO3-δ has potential to boost the electrochemical performance in advanced low-temperature fuel-cell technology. ",

keywords = "ceramic fuel cells, Co/Fe-LaBZrYO(CF-LBZY), electrode, electrolyte, Schottky junction, semiconductor, triple-charge conduction",

author = "Shah, {M. A.K.Yousaf} and Sajid Rauf and Naveed Mushtaq and Bin Zhu and Zuhra Tayyab and Muhammad Yousaf and Hanif, {Muhammad Bilal} and Lund, {Peter D.} and Yuzheng Lu and Asghar, {Muhammad Imran}",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (NSFC, Grant Nos. 51774259, 51772080, and 51675496) and the Engineering Research Center of Nano-Geo Materials of Ministry of Education (NGM2017KF004, NGM2017KF012, and NGM2018KF016). Dr. Asghar acknowledges the support from the Hubei overseas Talent 100 program (as a distinguished professor at Hubei University) and the Academy of Finland (Grant No. 13329016, 13322738) for their support. Publisher Copyright: {\textcopyright} ",

year = "2021",

month = jun,

day = "28",

doi = "10.1021/acsaem.1c00599",

language = "English",

volume = "4",

pages = "5798--5808",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - Novel Perovskite Semiconductor Based on Co/Fe-Codoped LBZY (La0.5Ba0.5Co0.2Fe0.2Zr0.3Y0.3O3-δ) as an Electrolyte in Ceramic Fuel Cells

AU - Shah, M. A.K.Yousaf

AU - Rauf, Sajid

AU - Mushtaq, Naveed

AU - Zhu, Bin

AU - Tayyab, Zuhra

AU - Yousaf, Muhammad

AU - Hanif, Muhammad Bilal

AU - Lund, Peter D.

AU - Lu, Yuzheng

AU - Asghar, Muhammad Imran

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (NSFC, Grant Nos. 51774259, 51772080, and 51675496) and the Engineering Research Center of Nano-Geo Materials of Ministry of Education (NGM2017KF004, NGM2017KF012, and NGM2018KF016). Dr. Asghar acknowledges the support from the Hubei overseas Talent 100 program (as a distinguished professor at Hubei University) and the Academy of Finland (Grant No. 13329016, 13322738) for their support. Publisher Copyright: ©

PY - 2021/6/28

Y1 - 2021/6/28

N2 - Introducing triple-charge (H+/O2-/e-) conducting materials is a promising alternative to modify a cathode as an electrolyte in advanced ceramic fuel cells (CFC). Herein, we designed a novel triple-charge conducting perovskite-structured semiconductor Co0.2/Fe0.2-codoped La0.5Ba0.5Zr0.3Y0.3O3-δ (CF-LBZY) and used as an electrolyte and an electrode. CF-LBZY perovskite as an electrolyte exhibited high ionic (O2-/H+) conductivity of 0.23 S/cm and achieved a remarkable power density of 656 mW/cm2 550 °C. X-ray photoelectron spectroscopy (XPS) analysis revealed that the Co/Fe codoping supports the formation of oxygen vacancies at the B-site of a perovskite structure. Besides, using CF-LBZY as a cathode, the fuel cell delivered 150 and 177 mW/cm2 at 550 °C, respectively, where Y-doped BaZrO3 and Sm-doped ceria (SDC) were used as electrolytes. During the fuel-cell operation, H+ injection into the CF-LBZY electrolyte may suppress electronic conduction. Furthermore, the metal-semiconductor junction (Schottky junction) has been proposed by considering the work function and electron affinity to interpret short-circuiting avoidance in our device. The current systematic study indicates that triple-charge conduction in CF-LBZYO3-δ has potential to boost the electrochemical performance in advanced low-temperature fuel-cell technology.

AB - Introducing triple-charge (H+/O2-/e-) conducting materials is a promising alternative to modify a cathode as an electrolyte in advanced ceramic fuel cells (CFC). Herein, we designed a novel triple-charge conducting perovskite-structured semiconductor Co0.2/Fe0.2-codoped La0.5Ba0.5Zr0.3Y0.3O3-δ (CF-LBZY) and used as an electrolyte and an electrode. CF-LBZY perovskite as an electrolyte exhibited high ionic (O2-/H+) conductivity of 0.23 S/cm and achieved a remarkable power density of 656 mW/cm2 550 °C. X-ray photoelectron spectroscopy (XPS) analysis revealed that the Co/Fe codoping supports the formation of oxygen vacancies at the B-site of a perovskite structure. Besides, using CF-LBZY as a cathode, the fuel cell delivered 150 and 177 mW/cm2 at 550 °C, respectively, where Y-doped BaZrO3 and Sm-doped ceria (SDC) were used as electrolytes. During the fuel-cell operation, H+ injection into the CF-LBZY electrolyte may suppress electronic conduction. Furthermore, the metal-semiconductor junction (Schottky junction) has been proposed by considering the work function and electron affinity to interpret short-circuiting avoidance in our device. The current systematic study indicates that triple-charge conduction in CF-LBZYO3-δ has potential to boost the electrochemical performance in advanced low-temperature fuel-cell technology.

KW - ceramic fuel cells

KW - Co/Fe-LaBZrYO(CF-LBZY)

KW - electrode

KW - electrolyte

KW - Schottky junction

KW - semiconductor

KW - triple-charge conduction

UR - http://www.scopus.com/inward/record.url?scp=85108359792&partnerID=8YFLogxK

U2 - 10.1021/acsaem.1c00599

DO - 10.1021/acsaem.1c00599

M3 - Article

AN - SCOPUS:85108359792

SN - 2574-0962

VL - 4

SP - 5798

EP - 5808

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 6

ER -