Article
Materials Science, Ceramics
Jie Gao, Zhi Liu, Muhammad Akbar, Cui Gao, Wenjing Dong, Yuanjing Meng, Xiaoqian Jin, Chen Xia, Baoyuan Wang, Bin Zhu, Hao Wang, Xunying Wang
Summary: Introducing semiconductor ZnO into YSZ electrolyte layer to construct a heterointerface can enhance the proton conductivity and improve the efficiency of low-temperature SOFC.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Qurat ul Ain, Muneeb Irshad, Muhammad Salim Butt, Asif Nadeem Tabish, Muhammad Bilal Hanif, Muhammad Ali Khalid, Rabia Ghaffar, Muhammad Rafique, Syeda Dur E. Shawar Kazmi, Khurram Siraj, Amal A. Abdel Hafez, Hisham S. M. Abd-Rabboh, Zuzana Zmrhalova, Elena A. Filonova, Dmitry A. Medvedev, Martin Motola
Summary: In this study, BaZr0.87Y0.1M0.03O3-delta perovskite electrolytes with sintering aids were successfully synthesized using a sustainable approach. The green synthesis method resulted in denser microstructures and higher conductivities compared to the chemically synthesized electrolytes. The environmentally friendly green route can be applied to synthesize perovskite materials for solid oxide fuel cells with minimal impact on the environment.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Adva Shpatz Dayan, Lioz Etgar
Summary: This study found that monocation perovskites perform better than mixed-cation perovskites in HTL-free cells due to their superior hole mobility and p-type behavior. Mixed-cation perovskites work better in other types of cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Muneeb Irshad, Raazia Idrees, Khurram Siraj, Imran Shakir, Muhammad Rafique, Qurat ul Ain, Rizwan Raza
Summary: The cobalt doped perovskite cathode material LaNi1-xCoxO3-delta (x = 0.4, 0.6, 0.8) shows promising performance as a mixed ionic electronic conductor (MIEC) for intermediate temperature solid oxide fuel cells (IT-SOFC), especially with x = 0.6 due to its porous and well connected structure leading to enhanced electrochemical reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Shuangbin Li, John T. S. Irvine
Summary: The demand for clean and sustainable energy has led to a growing interest in high temperature proton-conducting perovskite oxides, which show promising applications in the intermediate temperature range for clean energy. The control of defect chemistry is crucial in fine tuning properties for these applications, with a focus on structure-property relations and non-stoichiometry of perovskites.
SOLID STATE IONICS
(2021)
Article
Materials Science, Ceramics
Zezhong Wang, Ying Li, Wenlong Huang, Yushi Ding
Summary: Ba3Ba1+xTa2-xO9-delta oxides demonstrate excellent proton conductivity within a certain temperature range.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Wenlong Huang, Yushi Ding, Ying Li, Zezhong Wang
Summary: The new double perovskite-type proton conductor BBT30 exhibits high conductivity at high temperatures, with protonic conduction being predominant. It also has a higher proton transport number in atmospheric conditions compared to other double perovskite-type proton conductors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Hiroki Uehara, Akihiro Ishii, Itaru Oikawa, Hitoshi Takamura
Summary: A new mixed proton-hole conducting material is developed by doping cobalt into BaZr1-xScxO3-delta, which exhibits high hole conductivity. The study investigates the phases present, proton incorporation, and electrical conductivity of BaCoxZr0.9-xSc0.1O3-delta. It is found that Sc doping increases the cobalt solubility limit in BaZrO3 and conductive protons are incorporated in the bulk portion of Co, Sc-doped BaZrO3. BaCoxZr0.9Sc0.1O3-delta shows higher conductivity than Fe or Pr doped BaMxZr1-x-yYyO3-delta. The maximum conductivity is achieved for BaCo0.2Zr0.7Sc0.1O3-delta in both wet and dry oxidizing atmospheres.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Jing Shi, Chang Han, Haibo Niu, Youzhang Zhu, Sining Yun
Summary: Perovskite oxide RbBiNb2O7 exhibits good proton-transport behavior in the a-b plane due to its unique layered crystal structure, making it a promising candidate for electrolyte membrane applications in solid oxide fuel cells. The proton diffusion in RbBiNb2O7 is two-dimensional layered in nature and isolated by a higher energy barrier in the Rb-O and Nb-O layers, showing potential for efficient proton conductivity. This study provides theoretical evidence for the potential application of RbBiNb2O7 as an electrolyte in SOFCs by revealing its microscopic mechanisms of proton conductivity.
Article
Nanoscience & Nanotechnology
Zuobin Zhang, Jianxin Yi, Hongjie Han, Yuqing Meng, He Zhang, Yong Jiang
Summary: High-performance noble metal-free gas sensors are crucial for various applications. This study reports a reverse response in mixed ionic-electronic conductors with excellent H-2 sensing properties. Designing noble-metal-free sensors can increase response, sensitivity, and selectivity while reducing costs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Peiyi Lin, Xi Xu, Shoufu Yu, Yanru Yin, Martin Andersson, Lei Bi
Summary: The mismatch of the coefficients of thermal expansion between cathode and electrolyte is one of the challenges for high-performance proton-conducting solid oxide fuel cells. This study introduces the negative thermal expansion component YMO on the cathode to overcome this problem and improves cell performance.
JOURNAL OF POWER SOURCES
(2022)
Review
Energy & Fuels
Clarita Y. Regalado Vera, Hanping Ding, David Peterson, William T. Gibbons, Meng Zhou, Dong Ding
Summary: Doped barium zirconate is a material with high proton conductivity and chemical stability, considered promising for proton-conducting solid oxide electrochemical cells. While its proton conduction has been extensively studied, the specific phenomena behind its conduction properties are not fully understood. Specialized techniques and computational tools are beginning to elucidate the phenomena governing the material's conduction properties.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Materials Science, Ceramics
Wenlong Huang, Yushi Ding, Ying Li, Zezhong Wang
Summary: In this study, the excellent proton conductivity of the complex perovskite BST40 was investigated using brick-layer model and defect equilibria model. The results showed that BST40 exhibits higher conductivity through grain boundaries at temperatures above 500 degrees C, with higher standard molar hydration enthalpy. Additionally, the activation energy for proton transport in BST40 was found to be higher than that of grain interior, confirming its superior proton conductivity compared to other similar perovskite-type materials.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Xihan Tan, Zhangfeng Shen, Awais Bokhari, Muhammad Abdul Qyyum, Ning Han
Summary: This article discusses the principle, preparation method, and application of perovskite-type proton conductor hydrogen permeable membrane. It also explores the development trend of this material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Cenk Gumeci, Javier Parrondo, A. Mohammed Hussain, Dave Thompson, Nilesh Dale
Summary: The research demonstrated that the Praseodymium-based double perovskite oxide cathode nanofibers showed promising performance in improving the kinetics of the oxygen reduction reaction. The results indicated that nanofiber structures could be a suitable cathode material choice for intermediate-temperature solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
