Abstract
Fuel cells are highly efficient and green power sources. The typical membrane electrode assembly is necessary for common electrochemical devices. Recent research and development in solid oxide fuel cells have opened up many new opportunities based on the semiconductor or its heterostructure materials. Semiconductor-based fuel cells (SBFCs) realize the fuel cell functionality in a much more straightforward way. This work aims to discuss new strategies and scientific principles of SBFCs by reviewing various novel junction types/interfaces, i.e., bulk and planar p-n junction, Schottky junction, and n-i type interface contact. New designing methodologies of SBFCs from energy band/alignment and built-in electric field (BIEF), which block the internal electronic transport while assisting interfacial superionic transport and subsequently enhance device performance, are comprehensively reviewed. This work highlights the recent advances of SBFCs and provides new methodology and understanding with significant importance for both fundamental and applied R&D on new-generation fuel cell materials and technologies.
| Original language | English |
|---|---|
| Article number | 102191 |
| Journal | iScience |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2021 Mar 19 |
Bibliographical note
Funding Information:This work is supported by the National Science Foundation of China (No. 51772080 and 51402093 ), Brain Pool fellowship program, the Research Grant for Scientific Platform and Project of Guangdong Provincial Education office ( 2019KTSCX151 ), Shenzhen Government’s Plan of Science and Technology ( JCYJ20180305125247308 ), and Natural Science Foundation of Guangdong Province ( 2017A030313289 ).
Funding Information:
This work is supported by the National Science Foundation of China (No. 51772080 and 51402093), Brain Pool fellowship program, the Research Grant for Scientific Platform and Project of Guangdong Provincial Education office (2019KTSCX151), Shenzhen Government's Plan of Science and Technology (JCYJ20180305125247308), and Natural Science Foundation of Guangdong Province (2017A030313289). Enyi Hu, Zheng Jiang, Liangdong Fan, and Manish Singh contributed equally to this work, wrote and revised the paper with the assistance of all the authors. Bin Zhu and Liangdong Fan conceived the idea and oversaw the project. Rizwan Raza and Muhammad Sajid re-drew and arranged all the figures. Rizwan Raza and Jung-Sik Kim gave support and also helped to revise the paper. All authors discussed the results and contributed to the manuscript. The authors declare no competing interests.
Publisher Copyright:
© 2021 The Author(s)
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Subject classification (UKÄ)
- Energy Engineering
Free keywords
- Electrochemistry
- Energy Engineering
- Energy Materials
- Materials Science