Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The semiconductor SrFe0.2Ti0.8O3-delta-ZnO heterostructure electrolyte fuel cells
China Univ Geosci, Dept Mat Sci & Chem, Engn Res Ctr Nanogeo Mat, Minist Educ, 388 Lumo Rd, Wuhan 430074, Hubei, Peoples R China..
Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China..
Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China..
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China.ORCID iD: 0000-0002-3133-7031
Show others and affiliations
2019 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 44, no 57, p. 30319-30327Article in journal (Refereed) Published
Abstract [en]

Highly ion-conducting properties in heterostructure composites and semiconductors have drawn significant attention in recent years for developing new electrolytes in low temperature solid oxide fuel cells (LT-SOFCs). In this work, a new semiconductor heterostructure composite SrFe0.2Ti0.8O3-delta, (SFT)-ZnO consisting of p-type SFT and n-type ZnO is proposed and evaluated as an electrolyte in LT-SOFCs. Electrochemical studies reveal that the prepared SFT-ZnO is a mixed ion-electron conductor possessing a high ionic conductivity of 0.21 S cm(-1) at 520 degrees C and the assembled SFT-ZnO fuel cell can achieve a favorable peak power output of 650 mW cm(-2) along with high open-circuit voltage (OCV) of 1.06 V at 520 degrees C. By referring the semiconductor conduction types and energy band parameters of SFT and ZnO, a p-n bulk-heterojunction effect is proposed to describe the electronic blocking and ionic promotion processes of SFT-ZnO electrolyte in a fuel cell. Our work suggests a new insight into the design of effective LT-SOFC electrolytes by using semiconductor heterostructure material.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 44, no 57, p. 30319-30327
Keywords [en]
Solid oxide fuel cell, Semiconductor heterostructure, STFe0.2Ti0.8O3-delta-ZnO, High performance, Bulk-p-n heterojunction effect
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-265490DOI: 10.1016/j.ijhydene.2019.09.145ISI: 000498752900043Scopus ID: 2-s2.0-85073823662OAI: oai:DiVA.org:kth-265490DiVA, id: diva2:1378251
Note

QC 20191213

Available from: 2019-12-13 Created: 2019-12-13 Last updated: 2019-12-13Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Xia, Chen

Search in DiVA

By author/editor
Xia, Chen
By organisation
Heat and Power Technology
In the same journal
International journal of hydrogen energy
Energy Systems

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 5 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf