Sökning: id:"swepub:oai:DiVA.org:kth-251200" >
Shaping triple-cond...
Shaping triple-conducting semiconductor BaCo0.4Fe0.4Zr0.1Y0.1O3-delta into an electrolyte for low-temperature solid oxide fuel cells
-
- Xia, Chen (författare)
- KTH,Kraft- och värmeteknologi,Dept Energy Technol, SE-10044 Stockholm, Sweden.
-
- Mi, Youquan (författare)
- Hubei Univ, Fac Phys & Elect Sci, Key Lab Ferro & Piezoelect Mat & Devices Hubei Pr, Wuhan 430062, Hubei, Peoples R China.
-
- Wang, Baoyuan (författare)
- Hubei Univ, Fac Phys & Elect Sci, Key Lab Ferro & Piezoelect Mat & Devices Hubei Pr, Wuhan 430062, Hubei, Peoples R China.
-
visa fler...
-
- Lin, Bin (författare)
- Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Sichuan, Peoples R China.
-
- Chen, Gang (författare)
- Northeastern Univ, Liaoning Key Lab Met Sensor & Technol, Shenyang 110819, Liaoning, Peoples R China.
-
- Zhu, Bin (författare)
- Hubei Univ, Fac Phys & Elect Sci, Key Lab Ferro & Piezoelect Mat & Devices Hubei Pr, Wuhan 430062, Hubei, Peoples R China.;China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China.;Loughborough Univ, Dept Aeronaut & Automot Engn, Ashby Rd, Loughborough LE11 3TU, Leics, England.
-
visa färre...
-
(creator_code:org_t)
- 2019-04-12
- 2019
- Engelska.
-
Ingår i: Nature Communications. - : NATURE PUBLISHING GROUP. - 2041-1723. ; 10
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://www.nature.c...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Interest in low-temperature operation of solid oxide fuel cells is growing. Recent advances in perovskite phases have resulted in an efficient H+/O2-/e(-) triple-conducting electrode BaCo0.4Fe0.4Zr0.1Y0.1O3-delta for low-temperature fuel cells. Here, we further develop BaCo0.4Fe0.4Zr0.1Y0.1O3-delta for electrolyte applications by taking advantage of its high ionic conduction while suppressing its electronic conduction through constructing a BaCo0.4Fe0.4Zr0.1Y0.1O3-delta-ZnO p-n heterostructure. With this approach, it has been demonstrated that BaCo0.4Fe0.4Zr0.1Y0.1O3-delta can be applied in a fuel cell with good electrolyte functionality, achieving attractive ionic conductivity and cell performance. Further investigation confirms the hybrid H+/O2- conducting capability of BaCo0.4Fe0.4Zr0.1Y0.1O3-delta-ZnO. An energy band alignment mechanism based on a p-n heterojunction is proposed to explain the suppression of electronic conductivity and promotion of ionic conductivity in the heterostructure. Our findings demonstrate that BaCo0.4Fe0.4Zr0.1Y0.1O3-delta is not only a good electrode but also a highly promising electrolyte. The approach reveals insight for developing advanced low-temperature solid oxide fuel cell electrolytes.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas