Article
Materials Science, Multidisciplinary
In -Ho Kim, Dae-Kwang Lim, Yeon Namgung, Hohan Bae, Jun-Young Park, Sun-Ju Song
Summary: In this study, the electrochemical and transport properties of a perovskite-type proton conductor BZCYYb5311 were evaluated. The material showed high proton conductivity and exceptional chemical stability. It exhibited a proton conductivity of 98% compared to ionic conductivity at 600°C. The maximum power density in fuel cell mode and current density in electrolysis mode were calculated, indicating the potential of BZCYYb5311 as a fuel cell material.
Article
Engineering, Multidisciplinary
Meng Wang, Chao Su, Zhonghua Zhu, Hao Wang, Lei Ge
Summary: The article discusses the design principles and materials of protonic ceramic fuel cells and their composite cathodes, exploring the advantages and challenges of operating at low temperatures, with a focus on the importance of high-performance cathode materials.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Energy & Fuels
Denis A. Osinkin, Ekaterina P. Antonova, Natalia M. Porotnikova, Nina M. Bogdanovich
Summary: The hydrogen oxidation reaction was studied on different composite electrodes in contact with proton-conducting electrolytes. The presence of proton-conducting phase and exsolved nickel particles increased the electrochemical activity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Sandip Pal, Arani Choudhury, Pratyush Patnaik, Suman Sarkar, Uma Chatterjee
Summary: The objective of this work is to prepare functional copolymer/GO composite membranes by a simple and cost-effective method, and evaluate their structural, thermal, mechanical, and fuel cell performance. The results show that the addition of GO significantly enhances the mechanical properties and thermal stability of the composite membranes, while maintaining low methanol permeability and high ion conductivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Libin Lei, Yongzhen Ou, Ruiming Qiu, Wenchao Lian, Yingyu Mo, Jihao Zhang, Zhicong Shi, Jianping Liu, Chao Wang, Ying Chen
Summary: An electrochemical model of PCECs was developed in this study to evaluate and compare the performance in different operating modes, revealing that the hydrogen pump mode achieves higher energy efficiency. Additionally, introducing steam to the anode side was found to have a positive impact on the electrochemical performance of PCECs.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Applied
Denis Osinkin, Evgeniy Tropin
Summary: This paper presents the test results of an electrochemical cell for electricity generation, hydrogen separation, and high-purity hydrogen production. The cell shows promising performance in terms of hydrogen flow rates and has potential applications in hydrogen production.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Long Q. Le, Charlie Meisel, Carolina H. Hernandez, Jake Huang, Youdong Kim, Ryan O'Hayre, Neal P. Sullivan
Summary: Proton-conducting ceramics play an important role in electrochemical electricity generation, energy storage, and fuels synthesis. The study finds that the durability of protonic-ceramic electrolyzers is superior to fuel cells. The introduction of an interlayer greatly reduces the degradation rate in both fuel cells and electrolyzers.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Yufeng Li, Shoufu Yu, Hailu Dai, Yangsen Xu, Lei Bi
Summary: In this study, Sr-doped LaMnO3 (LSM) is coated with TiO2 to create the LSM + TiO2 cathode. It is found that TiO2 modifies the electronic structure at the LSM/TiO2 interface, allowing for charge accumulation and enhanced oxygen diffusion ability. Using LSM + TiO2 as a cathode for proton-conducting SOFCs operating at intermediate temperatures, the fuel cell demonstrates enhanced cell output performance and achieves the highest reported value for H-SOFCs with LSM cathodes.
SCIENCE CHINA-MATERIALS
(2023)
Article
Thermodynamics
Jaroslaw Milewski, Arkadiusz Szczesniak
Summary: This research aims to investigate the off-design performance of H+SOFC through numerical simulations. The study focuses on the design point and off-design maps of the cell, providing useful results for selecting operational strategies for micro-CHP units based on H+SOFC.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Muniraj N. Vignesh, S. S. Jayabalakrishnan, S. Selvasekarapandian, S. Aafrin Hazaana, P. Kavitha, M. Vengadesh Krishna
Summary: Novel and eco-friendly biomaterial membranes based on Moringa oleifera seed are fabricated and exhibit high ionic conductivity. The addition of stability enhancer and salt improves the performance of the membranes. The biomaterial membrane shows high potential for application in primary proton batteries and PEMFCs.
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
K. Cwieka, A. Lysik, T. Wejrzanowski, T. Norby, W. Xing
Summary: This paper demonstrates the influence of modifications in microstructure and chemical composition on the electrochemical behavior of cathodes for molten carbonate fuel cells (MCFCs). By designing new three-layer cathode structures, combining porous silver, nickel oxide, and nickel foam layers, it is possible to enhance cell performance, decrease internal resistance, and improve charge transfer and mass transport efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Ceramics
Yufeng Li, Yangsen Xu, Yanru Yin, Hailu Dai, Yueyuan Gu, Lei Bi
Summary: A new medium entropy material LCFMN is proposed as a cathode for H-SOFCs, which solves the issues of traditional lithiated oxide cathodes and achieves high fuel cell performance and stability.
JOURNAL OF ADVANCED CERAMICS
(2023)
Article
Chemistry, Multidisciplinary
Hua Tong, Wenjing Hu, Min Fu, Chunli Yang, Zetian Tao
Summary: Nickel-doped barium ferrate with triple conducting ability is developed as cathodes for proton-conducting solid oxide fuel cells (H-SOFCs), showing impressive electrochemical performance at intermediate temperatures. The high electrocatalytic capacity of the nickel-doped barium ferrate cathode is attributed to its significant proton conductivity, which is enhanced by the presence of nickel and the regulated composition and structure of the composite cathode.
Review
Green & Sustainable Science & Technology
Arpan Kumar Nayak, Ananta Sasmal
Summary: Recently, Perovskite oxides have been widely used in electrochemical conversion devices like Proton conducting Ceramic Fuel Cells (PCFC). Among them, barium zirconate (BaZrO3) is considered as a promising PCFC electrolyte material due to its excellent chemical stability and rapid proton diffusion. By altering the synthesis parameters and conditions, various novel synthesis techniques have been employed to prepare barium zirconate (BaZrO3) with enhanced material properties. Doping with trivalent impurities improves proton mobility and increases proton conductivity at reduced temperature, thereby expanding the scope of PCFC application with optimized output performance.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Chemistry, Physical
Ragnar Kiebach, Steven Pirou, Lev Martinez Aguilera, Astri Bjornetun Haugen, Andreas Kaiser, Peter Vang Hendriksen, Maria Balaguer, Julio Garcia-Fayos, Jose Manuel Serra, Falk Schulze-Kueppers, Max Christie, Liudmila Fischer, Wilhelm Albert Meulenberg, Stefan Baumann
Summary: Oxygen transport membranes (OTMs) are a promising technology for oxygen production, offering lower costs and power consumption compared to cryogenic air separation or pressure swing adsorption. Dual-phase OTMs, composed of a stable ionic conductor and electronic conductor composite, have advantages over single-phase membranes in terms of chemical and mechanical stability. However, challenges remain in their large-scale employment.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Sara Escorihuela, Cristina Cerda-Moreno, Fynn Weigelt, Sonia Remiro-Buenamanana, Sonia Escolastico, Alberto Tena, Sergey Shishatskiy, Torsten Brinkmann, Antonio Chica, Jose M. Serra
Summary: In this study, thin-film composite membranes (TFCM) were developed for in-situ water removal in a catalytic membrane reactor (CMR) for the Sabatier process, enabling higher catalytic stability and activity at elevated temperatures. The TFCM-mediated water extraction significantly improved CO2 conversion stability, with a notable increase in CO2 conversion rate and specific flux.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Multidisciplinary Sciences
Daniel Clark, Harald Malerod-Fjeld, Michael Budd, Irene Yuste-Tirados, Dustin Beeaff, Simen Aamodt, Kevin Nguyen, Luca Ansaloni, Thijs Peters, Per K. Vestre, Dimitrios K. Pappas, Maria Valls, Sonia Remiro-Buenamanana, Truls Norby, Tor S. Bjorheim, Jose M. Serra, Christian Kjolseth
Summary: Proton ceramic reactors efficiently extract hydrogen from ammonia, methane, and biogas by combining endothermic reforming reactions with heat from electrochemical gas separation and compression. The successful scale-up to a 36-cell reactor stack demonstrates its potential in efficient hydrogen production, with complete conversion and high recovery rates of methane and ammonia even at high pressures.
Article
Engineering, Chemical
Elisa Mercadelli, Angela Gondolini, Matteo Ardit, Giuseppe Cruciani, Cesare Melandri, Sonia Escolastico, Jose M. Serra, Alessandra Sanson
Summary: This study investigated the hydrogen permeation of BCZY-GDC asymmetric membranes for 100 hours using wet 15% CO2 in Ar as the sweep gas. The results showed that the asymmetric membranes exhibited promising and stable hydrogen permeation flux values under the test conditions, and no structural or morphological changes were detected after the testing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
L. Navarrete, C. Hannahan, J. M. Serra
Summary: The effect of B-site substituted cations on the stability and electrochemical performance of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite was investigated. The presence of these substituted cations improved stability by preventing the formation of detrimental phases and reducing the formation of carbonates. Symmetrical cell testing showed that the Sc-substituted material mixed with GDC had the lowest polarization resistance and was chosen as the cathode for the full cell construction. The composite electrode exhibited encouraging power density and stability.
SOLID STATE IONICS
(2022)
Article
Materials Science, Multidisciplinary
Daniel Hausmann, Lisa Patricia Freund, Cecilia Solis, Sven Giese, Mathias Goeken, Ralph Gilles, Steffen Neumeier
Summary: The crack susceptibility during processing greatly affects the workability of wrought alloys. The study focused on the formability and cracking behavior of the CoNi-base superalloy CoWAlloy1 during hot rolling. It was found that the precipitation of gamma ' and the absence of recrystallization led to pronounced crack propagation and limited formability below the gamma ' solvus temperature.
Article
Chemistry, Physical
Yubing Li, Lei Zeng, Ge Pang, Xueer Wei, Mengheng Wang, Kang Cheng, Jincan Kang, Jose M. Serra, Qinghong Zhang, Ye Wang
Summary: The direct hydrogenation of CO2 to gasoline and olefins using bifunctional iron-zeolite tandem catalysts operated at high temperatures (>300 degrees C) can efficiently utilize CO2 from industrial combustion and green H2 produced by solid oxide electrolytic cells (SOEC). The optimized FeMnK+H-ZSM-5 catalyst achieves a selectivity of 70% for C5-C11 range hydrocarbons and 17% for C2-C4 lower olefins at 320 degrees C. The conversion levels of CO2 and the aromatics contents are significantly enhanced at higher temperatures.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Marwan Laqdiem, Julio Garcia-Fayos, Laura Almar, Maria Balaguer, Jose M. Serra
Summary: Oxygen transport membranes (OTMs) are attractive for decarbonization of the industry, but the oxygen permeation remains a limitation. Dual-phase composite materials have potential as membrane candidates due to their stability under CO2 atmospheres. The phase ratio in the catalytic layers affects the surface-exchange reactions and plays a crucial role in improving the oxygen flux.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Marwan Laqdiem, Alfonso J. Carrillo, Georgios Dimitrakopoulos, Maria Balaguer, Julio Garcia-Fayos, Ahmed F. Ghoniem, Jose M. Serra
Summary: This study investigates the application of cerium oxide (CeO2) particles in solar-driven thermochemical cycles and explores the effect of doping with other cations on oxygen-vacancy concentration and crystal lattice. The results show that doping can enhance fuel yield and redox oxygen-exchange kinetics.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
S. Escolastico, M. Balaguer, C. Solis, F. Toldra-Reig, S. Somacescu, U. Gerhards, A. Aguadero, K. Haas-Santo, R. Dittmeyer, J. M. Serra
Summary: Catalytic membrane reactors based on H2-separation membranes can enhance the performance of thermodynamically-limited reactions. This study characterizes the stability of La5.4WO11.1-& delta; protonic membrane material under H2S conditions and demonstrates the changes in crystalline structure and transport properties caused by the incorporation of sulfur.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Daria Balcerzak, Iga Szpunar, Ragnar Strandbakke, Sarmad W. Saeed, Calliope Bazioti, Aleksandra Mielewczyk-Gryn, Piotr Winiarz, Alfonso J. Carrillo, Maria Balaguer, Jose M. Serra, Maria Gazda, Sebastian Wachowski
Summary: This study investigated the Lu doping of Ba0.5La0.5CoO3 and its effect on the exsolution of oxide nanoparticles. The Lu doping caused phase segregation into the main BLCO-Lu phase and the secondary BCO-Lu phase. Exsolution of BCO-Lu nanoparticles on the main BLCO-Lu phase and vice versa was observed, indicating mutual exsolution of oxide NPs. Trace amount of the BaLuCo4O7 phase was also detected. The size and shape of the exsolved oxide NPs could be controlled by varying the annealing temperature. The findings provide potential for designing novel, more catalytically active materials for future electrochemical devices.
Article
Chemistry, Inorganic & Nuclear
Aleksandra Mielewczyk-Gryn, Shuhao Yang, Maria Balaguer, Ragnar Strandbakke, Magnus H. Sorby, Iga Szpunar, Agnieszka Witkowska, Sebastian Wachowski, Jose M. Serra, Alexandra Navrotsky, Maria Gazda
Summary: This study investigates the formation energetics and stability of BaLnCo(2)O(6-delta) (Ln = La, Pr, Nd, and Gd) (BLnC) and BaGd1-xLaxCo2O6-delta, where x = 0.2, 0.5, and 0.7 (BGLC) double perovskite cobaltites under high water partial pressure. These materials have potential applications in electrochemical devices as positrodes. It is found that all investigated materials are thermodynamically stable relative to binary oxides and exhibit exothermic enthalpies of formation. The BGLC compounds show higher negative formation enthalpies compared to single-Ln compositions, but the BLnC series demonstrate better chemical stability under high steam pressures.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Andres Lopez-Garcia, Aitor Dominguez-Saldana, Alfonso J. Carrillo, Laura Navarrete, Maria I. Valls, Beatriz Garcia-Banos, Pedro J. Plaza-Gonzalez, Jose Manuel Catala-Civera, Jose Manuel Serra
Summary: Exsolution has become a promising method for generating metallic nanoparticles, offering better stability and robustness compared to conventional deposition methods. Alternative exsolution methods that do not rely on high-temperature reduction are being explored, such as utilizing electrochemical potentials or plasma technologies. In this study, a method based on pulsed microwave radiation is proposed for driving the exsolution of metallic nanoparticles, enabling high scalability with short exposure times and low temperatures.
Article
Chemistry, Multidisciplinary
J. M. Serra, M. Balaguer, J. Santos-Blasco, J. F. Borras-Morell, B. Garcia-Banos, P. Plaza-Gonzalez, D. Catalan-Martinez, F. Penaranda-Foix, A. Dominguez, L. Navarrete, J. M. Catala-Civera
Summary: This study investigates microwave-induced redox transformations on solid-state ion-conducting materials, and finds that reduction is triggered at a specific temperature leading to a significant increase in electric conductivity. The effectiveness of the redox process is influenced by material composition, gas environment, and microwave power intensity, with fine-grained materials showing amplified effects.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ragnar Strandbakke, David S. Wragg, Magnus H. Sorby, Matylda N. Guzik, Anette E. Gunnaes, Iga Szpunar, Sebastian Lech Wachowski, Maria Balaguer, Patricia A. Carvalho, Aleksandra Mielewczyk-Gryn, Jose M. Serra, Truls Norby
Summary: BGLC compositions with large compositional ranges of Ba, Gd, and La show significant compositional flexibility and the ability to tune functional properties, as well as anisotropic chemical expansion.
DALTON TRANSACTIONS
(2022)
