Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure-Reference-Cited by-同舟云学术

Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure

Published:2020-07-10 Issue:6500 Volume:369 Page:184-188
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Wu Y.¹^ORCID,Zhu B.¹²^ORCID,Huang M.³^ORCID,Liu L.¹^ORCID,Shi Q.¹^ORCID,Akbar M.³^ORCID,Chen C.⁴^ORCID,Wei J.⁵^ORCID,Li J. F.⁵^ORCID,Zheng L. R.⁶^ORCID,Kim J. S.⁷^ORCID,Song H. B.¹^ORCID

Affiliation:

1. Engineering Research Center of Nano-Geo Materials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.

2. Energy Storage Joint Research Center, Southeast University School of Energy and Environment, Southeast University, Nanjing, 210096, China.

3. Key Laboratory of Ferro and Piezoelectric Materials and Devices of Hubei Province, Faculty of Physics and Electronic Sciences, Hubei University, Wuhan, 430062, China.

4. Huazhong University of Science and Technology, Wuhan, 430074, China.

5. College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.

6. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.

7. Department of Aeronautical and Automotive Engineering, Loughborough University, Loughborough LE11 3TU, UK.

Abstract

A metallic route for protons The operating temperatures of solid oxide fuel cells are usually much higher than needed to drive the uncatalyzed electrochemical reaction to transport oxygen anions or protons through ceramic electrolytes. Wu et al. report that the interface between two semiconductors, Na x CoO 2 and CeO 2 , forms a metallic state that enables proton transport at temperatures below 600°C (see the Perspective by Ni and Shao). The authors constructed a hydrogen fuel cell with this material that delivered 1 watt per centimeter. Science , this issue p. 184 ; see also p. 138

Funder

National Natural Science Foundation of China

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference37 articles.

1. Highly durable, coking and sulfur tolerant, fuel-flexible protonic ceramic fuel cells

2. Exceptional power density and stability at intermediate temperatures in protonic ceramic fuel cells

3. Highly efficient reversible protonic ceramic electrochemical cells for power generation and fuel production

4. Oxide-ion conductors by design

5. Readily processed protonic ceramic fuel cells with high performance at low temperatures

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