Article
Chemistry, Multidisciplinary
Hyeongmin Yu, Incheol Jeong, Seungsoo Jang, Doyeub Kim, Ha-Ni Im, Chan-Woo Lee, Eric D. Wachsman, Kang Taek Lee
Summary: This study proposes a novel approach for developing high-performance low-temperature SOCs by using an Er, Y, and Zr triple-doped bismuth oxide (EYZB). The EYZB exhibits significantly higher ionic conductivity compared to commercial electrolytes and shows excellent stability. By incorporating EYZB in the composite electrodes and bilayer electrolytes, the zirconia-based LT-SOC achieves unprecedentedly high performance in both fuel cell and electrolysis cell modes. The digital twinning technique reveals a distinctive microstructural feature of EYZB that extends the triple phase boundary at the interface.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunhua Wang, Guoliang Bai, Xingjiang Liu, Yang Li
Summary: The study demonstrates that mixing LiMn2O4 and LiFePO4 together can reduce the material platform voltage difference and achieve superior performance in solid-state batteries. Batteries using LAGP-PEO (LiTFSI) composite electrolytes exhibit excellent reversible capacity and cycling stability at high temperatures.
Article
Materials Science, Ceramics
Mingyang Zhou, Zhijun Liu, Meilong Chen, Ziyi Zhu, Dan Cao, Jiang Liu
Summary: Protonic ceramic fuel cells (PCFCs) using BaZr0.8-xCexY0.2O3-delta (BZCY) as electrolyte materials were studied for their electrochemical performance and chemical stability. The results showed that increasing Ce4+ content reduced electronic hole conductivity, especially at high temperature. H-2 atmosphere decreased the conductive activation energy of BZCY, while air atmosphere caused electronic leakage. The operation of PCFCs demonstrated that higher Ce4+ content resulted in higher open-circuit voltage and output power density. However, lower Ce4+ content stabilized the materials in CO2 atmosphere.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Jeong Woo Shin, Seongkook Oh, Sungje Lee, Dohyun Go, Joonsuk Park, Hyong June Kim, Byung Chan Yang, Gu Young Cho, Jihwan An
Summary: Surface modification of electrodes is crucial for improving the performance of low-temperature solid oxide fuel cells. The ALD CeO2-coated Pt anode structure showed a significant improvement in anode kinetics, leading to a decrease in activation resistance and an increase in maximum power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Jun Woo Park, Han Lim Cha, Jong-Il Yun
Summary: This study investigates the electrochemical behaviors and thermodynamic properties of Ce on liquid Bi, Sn, and Zn electrodes in molten LiCl-KCl eutectic salt. It finds the formation of Ce-metal intermetallic compounds on the solid tungsten electrode and the activity coefficients of Ce in the liquid Bi, Sn, and Zn electrodes. The results reveal the complex electrochemical reactions and the differences in reduction potentials among the electrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Takuro Fukumoto, Naoki Endo, Katsuya Natsukoshi, Yuya Tachikawa, George F. Harrington, Stephen M. Lyth, Junko Matsuda, Kazunari Sasaki
Summary: Reversible solid oxide cells (r-SOCs) have high efficiency for power generation and hydrogen generation, making them important for supporting renewable energy. The exchange current density is a crucial parameter for quantifying electrode performance. This study investigates the microstructure and apparent exchange current density of different fuel and air electrodes under varying temperature, fuel humidification, and oxygen concentration conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Nianjun Yang, Siyu Yu, Wenjun Zhang, Hui-Ming Cheng, Patrice Simon, Xin Jiang
Summary: This study introduces a method to improve the energy density of electrochemical capacitors (ECs) by using confined soluble redox electrolytes and porous electrodes. The method utilizes the diffusion-controlled faradaic processes of confined redox electrolytes at the surface of a porous electrode, combining the high power densities of ECs and high energy densities of batteries. Significant progress has been made in this field, and strategies to improve performance are highlighted.
ADVANCED MATERIALS
(2022)
Review
Energy & Fuels
Gaurav Chasta, Himanshu, Mahendra Singh Dhaka
Summary: Solid oxide fuel cells (SOFCs) are ideal candidates for meeting massive energy demand due to their high energy conversion efficiencies, low pollution exhaust, fuel flexibility, and environmental friendliness. However, their large-scale industrial applications have not been realized yet because of the high operating temperatures. This review focuses on conventional and advanced techniques for fabricating thin film based SOFCs (TF-SOFCs) and provides insights on how to lower the operating temperature through the use of ultrathin single and bilayer electrolytes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Jun Zhang, Sandrine Ricote, Peter Vang Hendriksen, Yunzhong Chen
Summary: Solid oxide fuel cells (SOFCs) are efficient electrochemical energy conversion devices that have the potential to become low cost. However, their high operating temperatures have hindered their widespread commercialization. This review summarizes the recent progress in developing materials to lower the operating temperature of SOFCs and discusses the new opportunities and challenges. The focus is on thin film SOFCs, sub-micrometer SOFCs based on microelectromechanical systems, and devices based on proton-conducting oxide electrolyte.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Dedikarni Panuh, S. A. Muhammed Ali, Dody Yulianto, Muhammad Fadhlullah Shukur, Andanastuti Muchtar
Summary: Lowering operating temperature and optimizing electrolyte thickness are crucial in SOFC fabrication. This study focused on the impact of yttrium-stabilized bismuth bilayer electrolyte thickness on electrical performance, with 5.5 μm thickness exhibiting the highest efficiency at 600 degrees C. The bilayer electrolyte successfully contributed to oxygen reduction reaction and reduced electronic conduction in Sm0.2Ce0.8O1.9 electrolyte materials.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Physical
Fuyuan Liang, JiaRan Yang, Yuanyuan Zhao, Yexin Zhou, Zilin Yan, JianChao He, Qunhui Yuan, Junwei Wu, Peng Liu, Zheng Zhong, Minfang Han
Summary: This review summarizes recent progress in thin-film electrolytes fabricated by the PVD method, particularly pulsed laser deposition (PLD) and magnetron sputtering. The importance of substrate surface morphology for film quality is emphasized. The fabrication of doped-zirconia and doped-ceria electrolytes is presented, along with a brief summary of other types of electrolytes prepared by PVD.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yuanyuan Liu, Hongyun Li, Changkun Cai, Shuting Li, Jinlong Cui, Shengli An
Summary: In order to improve the performance of the Ce0.8Gd0.2O2-delta (GDC) electrolyte in a solid oxide fuel cell, a GDC/ScSZ double layer was used to block the electronic conduction due to Ce3+/Ce4+ transitions. The results showed that the GDC/ScSZ-GDC electrolyte had lower ionic conductivity and higher electronic conductivity compared to GDC. The use of ScSZ as a barrier layer effectively reduced electron transfer and improved the performance of the fuel cell.
Article
Chemistry, Multidisciplinary
Yuanyuan Liu, Hongyun Li, Changkun Cai, Shuting Li, Jinlong Cui, Shengli An
Summary: To enhance the performance of the Ce0.8Gd0.2O2-delta (GDC) electrolyte in solid oxide fuel cells, a GDC/ScSZ double layer was deposited on a dense GDC substrate. The results showed that the ScSZ thin layer effectively blocked electron transfer and improved the conductivity of the GDC electrolyte.
Article
Chemistry, Physical
Sijie Liu, Le Zhou, Jian Han, Kaihua Wen, Shundong Guan, Chuanjiao Xue, Zheng Zhang, Ben Xu, Yuanhua Lin, Yang Shen, Liangliang Li, Ce-Wen Nan
Summary: In this study, a composite electrolyte membrane composed of sulfide Li6PS5Cl and polar poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) framework was successfully prepared, showing high ionic conductivity and good mechanical properties. The composite electrolyte membrane exhibited excellent cycling performance at room temperature. These results demonstrate the potential commercial application value of all-solid-state batteries.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Jinyao Li, Shengde Dong, Meiwei Song, Yue Leng, Chunxi Hai, Yuan Zhou
Summary: A solid-state electrolyte (SSE) is an important component of high-safety and high-energy-density all-solid-state batteries. Garnet-type Li7La3Zr2O12 SSEs have high ionic conductivity and good chemical stability, making them an excellent choice for solid-state Li-metal batteries. The main challenge is the high interfacial resistance between SSEs and electrodes. By coating LiFePO4 with a solid electrolyte Li6.4La3Zr1.4Ta0.6O12 (LLZTO), the interfacial impedance is effectively reduced, resulting in improved performance of the modified materials with higher specific discharge capacity and better cycling performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Yanuo Shi, Luyao Wang, Ziyu Wang, Giovanni Vinai, Luca Braglia, Piero Torelli, Carmela Aruta, Enrico Traversa, Weimin Liu, Nan Yang
Summary: Solid oxide photoelectrochemical cells with inorganic ion-conducting electrolytes offer an alternative solution for light harvesting and conversion. Ceria-based thin films were investigated as photoelectrodes for SOPEC applications, with their photoresponse tuned by Sm-doping induced defects and SOPEC heating temperature. The role of defect chemistry engineering in determining the photoelectrochemical process was discussed, providing a compelling explanation of the experimentally observed switching behavior.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Luca Indrizzi, Natacha Ohannessian, Daniele Pergolesi, Thomas Lippert, Elisa Gilardi
Summary: All-solid-state lithium ion batteries are the most promising technology for future electrochemical energy storage, but challenges related to chemical and mechanical stability still hinder substantial improvements. Pulsed laser deposition has shown to be an excellent technique for depositing thin films of materials needed for LIB, but faces difficulties in depositing LIB components due to differences in atomic mass.
HELVETICA CHIMICA ACTA
(2021)
Editorial Material
Chemistry, Multidisciplinary
Francesca Deganello, Ana C. Tavares, Enrico Traversa
FRONTIERS IN CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Haohong Xian, Haoran Guo, Jiaojiao Xia, Qiru Chen, Yonglan Luo, Rui Song, Tingshuai Li, Enrico Traversa
Summary: Iron-doped alpha-MoO3 nanosheets have been designed as potential catalysts for reducing nitrogen to produce ammonia with high efficiency. The intentional modulation of the alpha-MoO3 band structure by iron doping and the generation of oxygen vacancies beneficial for nitrogen adsorption at the active sites contribute to the excellent performance of the catalyst.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jiaojiao Xia, Haoran Guo, Guangsen Yu, Qiru Chen, Yulin Liu, Qian Liu, Yonglan Luo, Tingshuai Li, Enrico Traversa
Summary: In this study, 2D vanadium carbide was synthesized and used as an efficient electrocatalyst for electrocatalytic N-2 reduction reaction. The catalyst showed high NH3 yield rate and Faradaic efficiency, with theoretical calculations demonstrating low reaction barrier.
Article
Materials Science, Multidisciplinary
Sijun Luo, George F. Harrington, Kuan-Ting Wu, Daniele Pergolesi, Thomas Lippert
Summary: This study reports the heteroepitaxial growth of a hexagonal delafossite CuFeO2 thin film on a cubic perovskite SrTiO3 substrate, demonstrating translational and rotational domain matching epitaxy. The thin film exhibits high crystalline quality with a possible indirect optical bandgap of 1.43 eV or direct optical bandgap of 1.94 eV.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Tingshuai Li, Jiaojiao Xia, Qiru Chen, Ke Xu, Yang Gu, Qian Liu, Yonglan Luo, Haoran Guo, Enrico Traversa
Summary: In this study, monodisperse Cu clusters loaded on defective ZrO2 nanofibers were used as an electrocatalyst for nitrogen reduction, achieving high NH3 yield rate and optimal Faradaic efficiency. Density functional theory calculations revealed that N-2 molecule was reduced to NH3 at Cu active site with an ideal overpotential. The interaction between bonding and antibonding of Cu-N bond promoted activation of N-2 and maintained a low desorption barrier.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Tingshuai Li, Jiaojiao Xia, Haohong Xian, Qiru Chen, Ke Xu, Yang Gu, Yonglan Luo, Qian Liu, Haoran Guo, Enrico Traversa
Summary: In this study, it is reported that Fe ion grafted on MoO3 nanorods can enhance the electron harvesting ability and the selectivity of H+ during the nitrogen reduction reaction in neutral electrolyte. The electrocatalyst showed remarkable ammonia yield and Faradaic efficiency under experimental conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Biochemistry & Molecular Biology
Francesca Corsi, Francesco Capradossi, Andrea Pelliccia, Stefania Briganti, Emanuele Bruni, Enrico Traversa, Francesco Torino, Albrecht Reichle, Lina Ghibelli
Summary: This study established a reliable in vitro model to investigate therapy-induced prostate cancer repopulation and found that epigenetic reprogramming assists Phoenix Rising in promoting post-therapy cancer cell repopulation and acquired resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Craig Lawley, Zahra Pourmand Tehrani, Adam H. Clark, Olga Safonova, Max Doebeli, Vladimir N. Strocov, Thomas J. Schmidt, Thomas Lippert, Maarten Nachtegaal, Daniele Pergolesi
Summary: Oxynitrides have shown promise as visible light water splitting photocatalysts, but the nature and evolution of the A-site (Sr) in the semiconductor SrTaOxNy during operation have significant impacts on the material's stability and catalytic activity, leading to the enrichment of a BO₂-like surface. However, this surface structure may complicate the efficiency of the photocatalytic process.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Anthony Boucly, Luca Artiglia, Emiliana Fabbri, Dennis Palagin, Dino Aegerter, Daniele Pergolesi, Zbynek Novotny, Nicolo Comini, J. Trey Diulus, Thomas Huthwelker, Markus Ammann, Thomas J. Schmidt
Summary: Experimental results show that in the oxygen evolution reaction (OER) process, the surface of the La0.2Sr0.8CoO3-delta perovskite OER catalyst enriches cobalt active sites, leading to the formation of cobalt oxyhydroxide. This evolution of a cobalt-enriched oxide surface into a new phase is detected in situ and after the OER.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Shuyue Dong, Jiaojiao Xia, Hexin Zhu, Xiangning Du, Yang Gu, Qian Liu, Yonglan Luo, Qingquan Kong, Haoran Guo, Tingshuai Li, Enrico Traversa
Summary: In this study, a method for electrochemical synthesis of ammonia using ZrO2/C catalyst is proposed. Compared to the traditional Haber-Bosch process, this method saves energy and reduces pollution. Experimental results demonstrate that the catalyst can efficiently convert nitrogen to ammonia at ambient conditions.
Article
Energy & Fuels
Daniele Pergolesi, Craig Lawley, Thomas Lippert
Summary: This paper reviews the literature on oxynitride thin films for solar water splitting, summarizes the findings so far, and suggests experimental strategies to uncover remaining uncertainties.
Meeting Abstract
Cell & Tissue Engineering
Sara Maria Giannitelli, Manuele Gori, Miranda Torre, Pamela Mozetic, Franca Abbruzzese, Marcella Trombetta, Enrico Traversa, Lorenzo Moroni, Alberto Rainer
TISSUE ENGINEERING PART A
(2022)
Article
Chemistry, Physical
Jiaojiao Xia, Haoran Guo, Maozeng Cheng, Chuyan Chen, Minkang Wang, Yong Xiang, Tingshuai Li, Enrico Traversa
Summary: This study introduces electrospun zirconia nanofibers as a non-noble NRR electrocatalyst for converting nitrogen to ammonia. Theoretical calculations suggest that Zr sites with oxygen vacancies are favorable for nitrogen adsorption and reduction. Experimental results show a high NH3 formation rate and optimal faradaic efficiency in 0.1 M Na2SO4 at -0.7 V vs. the reversible hydrogen electrode.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
