Article
Chemistry, Physical
Arim Seong, Donghwi Jeong, Minseo Kim, Sihyuk Choi, Guntae Kim
Summary: This study investigates the effect of composite cathodes on the electrochemical performance of protonic ceramic fuel cells (PCFCs). It is found that combining proton-conducting oxide with a mixed ionic and electronic conductor or a triple ionic and electronic conductor can significantly enhance the peak power density, with the reduction in non-charge transfer resistance playing a key role.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Nur Nadhihah Mohd Tahir, Nurul Akidah Baharuddin, Abdullah Abdul Samat, Nafisah Osman, Mahendra Rao Somalu
Summary: Solid oxide fuel cells (SOFCs) are known for their high efficiency and energy density, but are limited by their high operating temperatures. Different types of cathode materials, such as MIEC and THOEC, are leading in research and application, but further studies are needed for continuous improvement.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Dongping Yan, Wansheng Wang, Runhua Li, Shanshan Jiang, Liu Lu, Aleksey Levtsev, Daifen Chen
Summary: A multi-physical model for a protonic ceramic fuel cell (PCFC) was established in this study, and validated using a specific example of Ni-BZCY/BZCY/BZCY-LSCF PCFC. The results showed that at intermediate temperatures, cathodic electrochemical reactions will concentrate near the electrolyte, and O2- within the cathode acts as an intermediate transform substance between electrons and protons.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
De Gao, Shuzhen Deng, Xiaoyan Chen, Yingxi Zhang, Tuan Lv, Yang He, Feng Zhou, Wen Zhang, Paul K. Chu, Kaifu Huo
Summary: A mixed ion/electron conductive Li3N-Mo protective interphase is designed and demonstrated to stabilize the Li-electrolyte interface for a dendrite-free and ultrahigh-current-density metallic Li anode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Cansu Savas Uygur, Mehmet Kadri Aydinol
Summary: By doping with calcium and yttrium, the electrochemical performance of Li(NCA) cathode was improved, with the Y-doped sample showing the highest initial discharge capacity and the Ca-doped sample exhibiting the highest rate capability. Further treatment is necessary to enhance the performance of pristine NCA cathode.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
Caterina Sanna, Wenjing Zhang, Paola Costamagna, Peter Holtappels
Summary: The study reports the synthesis and electrochemical characterization of composite cathodes made from a mixture of LSCF and GDC nanofibers. The electrodes showed low polarization resistance at 650 degrees C, indicating promising potential for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
S. K. Ahmed, M. Faishal Mahmood, M. Arifuzzaman, M. Belal Hossen
Summary: Nanoparticles of Cu-Zn-Al-Fe oxides were synthesized using the auto-combusted sol-gel process and the effect of Al3+ substitution on structural, magnetic, and dielectric properties was studied. The addition of Al3+ resulted in increased grain and grain boundary resistance, reducing space charge polarization. Electrical conductivity increased with frequency and saturation magnetization showed an increment with nonmagnetic Al3+ substitution.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Mariano Romero, Dominique Mombru, Fernando Pignanelli, Ricardo Faccio, Alvaro W. Mombru
Summary: Recent studies have focused on establishing a link between structural and mixed ionic-electronic transport properties in organic mixed ionic-electronic conductors (OMIECs) in organic electrochemical transistor (OECT) devices. This study provides insights into the mixed ionic-electronic transport mechanisms in PEDOT:PSS-based OMIECs working as OECT channel materials using impedance spectroscopy and micro-Raman imaging techniques. The results reveal the out-of-plane transport mechanism is based on ionic injection and diffusion, while the in-plane transport involves both ionic and electronic transport.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Young-Il Kim, Maxim Avdeev
Summary: Perovskite lattice was modified with site vacancies and mixed anion composition to create Sr0.83Li0.17Ta0.83O1.88N0.74 (Li02N), which was further transformed into Sr0.83Li0.17Ta0.83O3 (Li02O) with optimized treatment. Both Li02N and Li02O showed Arrhenius behavior of ionic conductivity with different activation energies, suggesting that the nitride component enhances ionic conduction while anion lattice vacancies have the opposite effect.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Xiaokang Wang, Xuefei Li, Jianguo Mei, Kejie Zhao
Summary: In this study, the doping kinetics and mechanical response of a model material PProDOT were investigated through experiments and modeling. The study revealed that the doping process is diffusion-controlled and has significant effects on the film morphology, elastic modulus, and hardness. Additionally, applied pressure was found to affect the doping kinetics. This work contributes to the understanding of the coupled electrochemical and mechanical responses of organic mixed ionic-electronic conductors.
EXTREME MECHANICS LETTERS
(2022)
Article
Chemistry, Physical
Maryam Shahi, Vianna N. Le, Paula Alarcon Espejo, Maryam Alsufyani, Christina J. Kousseff, Iain Mcculloch, Alexandra F. Paterson
Summary: This Comment emphasizes the importance of consistent and standardized reporting of the mu C* product in the development of organic mixed ionic-electronic conducting materials and organic electrochemical transistors. It also raises the concern that unexpected changes in transistor channel resistance can lead to an overestimation of this figure of merit, causing confusion in literature comparisons.
Article
Chemistry, Physical
Eun Jeong Moon, Jeong Ki Hong, Sangram Keshari Mohanty, Mihyun Yang, Kyuwook Ihm, Hosik Lee, Hyun Deog Yoo
Summary: Lithium titanate (LTO) is a promising anode material for fast charging and discharging Li-ion batteries. By uniformly coating the LTO surface with a thin layer of partially lithiated titania (LixTiO2), both electron and Li-ion transfer are facilitated, leading to improved capacity retention and rate capability of LTO.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Ke Shan, Fengrui Zhai, Zhong-Zhou Yi, Xi-Tao Yin, Davoud Dastan, Fariba Tajabadi, Azadeh Jafari, Sedigheh Abbasi
Summary: The study utilized the solid state reaction technique to fabricate oxygen sensors, and investigated various characteristics such as crystal structure, surface morphology, and electrical properties through multiple analysis methods, revealing the impact of Cr-doping on Y0.08Ca0.92Zr1-xCrxO3-delta, as well as the enhanced electronic and ionic conductivities of Y0.08Ca0.92Zr1-xCrxO3-delta with increasing Cr-doping levels. The significant improvement of multivalent chromium ions on the electrical properties, the mechanism of charge compensation, and oxygen ions conduction in the lattice were discussed in detail.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Zongzi Jin, Xiangkun Kong, Huang Huang, Yining Jiang, Wenyi Xiang, Yifan Xu, Lei Zhang, Ranran Peng, Chengwei Wang
Summary: The low conductivities of ions and electrons in the cathode, as well as poor cathode interface performance, are major challenges in the application of garnet solid-state batteries. This study proposes the use of a single-phase garnet-type mixed ionic and electronic conductor (MIEC) as the cathode framework, aiming to achieve high activity and stability at the cathode interface. Through calculations and sintering techniques, a series of garnet-type MIECs have been synthesized and screened, with Li43Fe3La24Zr12Ta4O96 (3Fe) exhibiting excellent electronic conductivity of 2.87 x 10-4 S cm-1 and ionic conductivity of 4.57 x 10-5 S cm-1. This work provides a new strategy to address the cathode interface problem in garnet solid-state batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Dmitri Kalaev, Harry L. Tuller
Summary: The study demonstrates a new method for tuning the optical constants of mixed ionic-electronic conductors and provides an application model. Additionally, experimental results show that oxygen vacancy mobility can affect the switching speed of the device, with key figures of merit including optical modulation and switching times.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Physics, Multidisciplinary
Namrata I. Jain, Shyamsunder S. Bhoga
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2015)
Article
Chemistry, Physical
A. P. Khandale, M. G. Bansod, S. S. Bhoga
SOLID STATE IONICS
(2015)
Correction
Chemistry, Physical
Namrata Jain, Shyamsunder S. Bhoga, Gowardhan S. Khadekar
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
(2015)
Article
Chemistry, Physical
M. Bansod, A. P. Khandale, S. S. Bhoga
Article
Chemistry, Physical
V. N. Chaudhari, A. P. Khandale, S. S. Bhoga
Article
Chemistry, Physical
M. B. Bansod, A. P. Khandale, R. V. Kumar, S. S. Bhoga
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Physical
V. N. Chaudhari, A. P. Khandale, S. S. Bhoga
JOURNAL OF POWER SOURCES
(2014)
Article
Chemistry, Physical
S. S. Bhoga, A. P. Khandale, B. S. Pahune
SOLID STATE IONICS
(2014)
Article
Chemistry, Physical
A. P. Khandale, B. S. Pahune, S. S. Bhoga, R. V. Kumar, R. Tomov
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
A. P. Khandale, S. S. Bhoga
Summary: The dispersion of nanocrystalline Ce0.9Gd0.1O2-delta in superfine Sm1.5Sr0.5NiO4+delta is achieved using a modified precipitation technique, inhibiting grain growth and providing morphological stability. The concentration-dependent behaviors of ionic conductivity, surface exchange rate, and electrode polarization resistance are comprehended using a percolation model. Improvement in electrochemical performance is correlated to the nano crystallite size of Ce0.9Gd0.1O2-delta.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Green & Sustainable Science & Technology
R. Vinoth Kumar, A. P. Khandale
Summary: This review focuses on the potential cobalt-based cathodes for low-temperature solid oxide fuel cells (LT-SOFC). The combination of novel elements and new materials in the architecture of LT-SOFC can increase its efficiency. Decoration of metal nanoparticles or thin films on cathodes can enhance their performance and stability.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
