Review
Chemistry, Multidisciplinary
Bin Wang, Tao Li, Zhigang Wang, Mohd Hafiz Dzarfan Othman, Shaomin Liu, Rui Xiao
Summary: Hydrogen is a carbon-free energy carrier and water is an environmentally-friendly source for its production. Coupling catalytic water splitting with a mixed ionic-electronic conducting (MIEC) membrane reactor has shown great potential in enhancing hydrogen production. This review comprehensively covers critical aspects of this process, including materials, structure, morphology, catalysts, and operating conditions. Furthermore, integrating methane-related oxidation reactions can further intensify the process and improve the hydrogen production rate. Future development trends are also summarized.
Article
Biochemistry & Molecular Biology
Liudmila Fischer, Ke Ran, Christina Schmidt, Kerstin Neuhaus, Stefan Baumann, Patrick Behr, Joachim Mayer, Henny J. M. Bouwmeester, Arian Nijmeijer, Olivier Guillon, Wilhelm A. Meulenberg
Summary: This study investigates the effect of the Fe/Co ratio on the microstructure and performance of Fe3-xCoxO4 composites. Results show that the presence of iron in the composite leads to the formation of additional phases with spinel or garnet structures, which contribute to electronic conductivity. The presence of both types of cations is crucial for the formation of a composite structure, allowing for efficient electronic and ionic conduction. The maximum oxygen flux of the composite is 0.16 and 0.11 mL/cm(2) .s at 1000°C and 850°C, respectively, comparable to previous reports.
Review
Chemistry, Multidisciplinary
F. Buck, K. Wiegers, A. Schulz, T. Schiestel
Summary: Perovskite hollow fibers have been utilized for oxygen extraction from various oxygen-containing plasmas. The study focused on the impact of working length and temperature on oxygen transport, comparing the results with a conventional electrically heated system. The feasibility of oxygen extraction in CO2 plasma was also investigated, achieving significant oxygen permeation values in both air and CO2 plasmas.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Mtabazi G. Sahini, Benard S. Mwankemwa, Nikola Kanas
Summary: BSCF is an oxygen permeable MIEC membrane material with potential for high-temperature electrochemical applications, such as oxygen separation membranes and SOFC cathodes. Extensively studied, the material's properties include crystal structure, oxygen non-stoichiometry, synthesis, membrane fabrication, thermomechanical stability, phase stability, and mechanical properties. This review article aims to consolidate existing knowledge and provide a comprehensive understanding for researchers entering the field.
CERAMICS INTERNATIONAL
(2022)
Review
Engineering, Chemical
Ao Wang, Man Liang, Qingyun Xiang, Jian Xue, Haihui Wang
Summary: The MIEC membrane reactor has made significant progress in the purification of oxygen, nitrogen, and hydrogen, with its high selectivity and efficiency in gas separation. Through methods such as material selection, membrane morphology optimization, and reaction coupling, the production of pure O-2, high concentration N-2, and hydrogen has been achieved successfully.
CHEMIE INGENIEUR TECHNIK
(2022)
Article
Chemistry, Multidisciplinary
Miryam Criado-Gonzalez, Nuria Alegret, Alejandro M. Fracaroli, Daniele Mantione, Gregorio Guzman-Gonzalez, Rafael Del Olmo, Kentaro Tashiro, Liliana C. Tome, Matias L. Picchio, David Mecerreyes
Summary: In this article, the first example of mixed ionic and electronic conducting supramolecular eutectogel composites is reported. These materials exhibit excellent injectability and self-healing properties, high ionic conductivity, good biocompatibility, and fluorescence imaging ability. They hold great promise for bioimaging and electrostimulation applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Thomas Defferriere, Dmitri Kalaev, Jennifer L. M. Rupp, Harry L. Tuller
Summary: Enhanced ionic mobility in mixed conductors can improve performance of various devices. This study investigates the impact of oxygen deficiency on oxygen vacancy mobility, showing that increasing non-stoichiometry can significantly increase ionic mobility. Understanding the effects of ionic defects on mobility may help in elucidating variations in nanoionic devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Jack H. Duffy, Yuqing Meng, Harry W. Abernathy, Kyle S. Brinkman
Summary: Y substitution increases lattice size and forms oxygen vacancies, resulting in a decrease in oxygen permeation flux and DC total conductivity. However, Y-doped samples show an order of magnitude increase in surface exchange rates compared to Zr-doped samples.
Article
Engineering, Chemical
Jing Gao, Yong Li, Huimin Li, Tianxiang Chen, Huasheng Xiao, Xinzhi Chen
Summary: An effective symmetric structured dual phase mixed conducting oxygen separation membrane made of 60 wt% Ce0.9Gd0.1O2-delta - 40 wt% Ba0.5Sr0.5Co0.8Fe0.2O3-delta (60CGO-40BSCF) was prepared using aqueous tape casting. The membrane consisted of a dense thin layer in the middle and porous substrates on the two sides. This structure optimized both oxygen ion diffusion and surface gas exchange, resulting in increased oxygen permeation flux. Compared to a monotonous dense membrane, the porous supported symmetric membrane exhibited higher permeation fluxes. The study indicates that the porous supported symmetric membrane structure is an efficient strategy to enhance oxygen permeation flux.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Chia-Yu Lee, Yen-Ting Lin, Shao-Huan Hong, Chia-Hsin Wang, U-Ser Jeng, Shih-Huang Tung, Cheng-Liang Liu
Summary: This study successfully prepared mixed ionic-electronic conducting thermoelectric materials, fabricated via chemical cross-linking to form a double network. The presence of carbon nanotubes and polyaniline improved the electrical properties of the hydrogel. The optimum device exhibited remarkable ionic conductivity and ionic Seebeck coefficient, achieving significant advancements in the field of gel-state organic thermoelectric materials. Furthermore, a wearable module was created by embedding the hydrogel into a PDMS mold, demonstrating high power density.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yanxi Zhang, Eveline R. W. van Doremaele, Gang Ye, Tim Stevens, Jun Song, Ryan C. Chiechi, Yoeri van de Burgt
Summary: This study demonstrates a tunable sensing circuit based on a polymer mixed conductor that can locally modulate biologically relevant signals. The circuit, constructed from a complementary logic inverter and a neuromorphic memory element, achieves high classification accuracy in heartbeat anomaly detection. The high-performance material allows for straightforward fabrication and integration of more sophisticated adaptive circuits for future smart bioelectronics.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Ceramics
Kento Ishii, Chika Matsunaga, Kiyoshi Kobayashi, Adam J. Stevenson, Caroline Tardivat, Tetsuo Uchikoshi
Summary: The multi-layered oxygen separation membrane based on BSCF was fabricated using sequential EPD process, with a structure of thin porous/dense bi-layer of BSCF. By optimizing the processes, a high oxygen separation performance of 3.7 ml (STP) min(-1) cm(-2) at 860 degrees C was achieved for this membrane.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Jian Song, Claudia Li, Shao Zhang, Kai Wang, Bo Meng, Xiaoyao Tan, Jaka Sunarso, Shaomin Liu
Summary: This study presents Sc-doped BCFe composites with enhanced thermal stability for BaCeO3-based ceramics. The BCFSc20 hollow fiber membranes exhibit the highest hydrogen and oxygen fluxes at high temperatures, along with excellent stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Roman Halaksa, Ji Hwan Kim, Karl J. Thorley, Peter A. Gilhooly-Finn, Hyungju Ahn, Achilleas Savva, Myung-Han Yoon, Christian B. Nielsen
Summary: Functionalized thiophenes in the 3-position are commonly used as building blocks for organic semiconductors. The non-centrosymmetric nature of these compounds has been utilized in synthetic design and has led to the development of polymers with different properties. The recent interest in 3-alkoxythiophene based polymers for bioelectronic applications brings attention to the regiochemistry of these systems and their attractive intramolecular interactions. By studying a series of six polythiophene derivatives with varying regiochemistry and comonomer composition, we investigate the geometrical and electronic effects on their properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Ruiheng Wu, Bryan D. Paulsen, Qing Ma, Iain McCulloch, Jonathan Rivnay
Summary: This study investigated the ionic composition and mesoscopic structure of three typical p-type organic mixed ionic-electronic conductors (OMIECs). The results revealed different ion compositions and distributions in different materials, which is crucial for accurately connecting the structure and properties of these materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Bingjie Pang, Peng Zhang, Zhongwei Cao, Song Wang, Jingjing Tong, Xuefeng Zhu, Weishen Yang
Summary: The article introduces a method of coupling the CO2 capture process with in situ methanation process, using a ceramic-molten carbonate (MC) dual-phase membrane reactor and a nickel-based catalyst, which can effectively reduce CO2 capture costs and improve reaction performance.
Article
Chemistry, Multidisciplinary
Bingjie Pang, Shiqing Hu, Liming Zhang, Peng Zhang, Xuefeng Zhu, Weishen Yang
Summary: The non-perovskite cathode CaFe2O4 has been investigated for CO2 electrolysis in solid oxide electrolysis cells, showing improved CO2 adsorption and conductivity through a phase transition process. The cathode demonstrates high electrochemical performance, reaching a current density of 1.81 A cm(-2) at 1.6 V and 850 degrees C, and exhibits good stability even after long-term testing.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Jingyi Wang, Lili Cai, Zhongwei Cao, Xuefeng Zhu, Weishen Yang
Summary: In this study, four perovskite catalysts were prepared and tested for their catalytic performance in the oxidative coupling of methane. The results showed that Ce-based catalysts exhibited higher catalytic performance compared to Zr-based catalysts, and the addition of Y element significantly improved the selectivity of ethylene. By observing the active oxygen species and basic sites on different catalysts, BaCe0.8Y0.2O3-delta was found to have the best performance.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Weili Xie, Kaiyue Zhu, Hanmiao Yang, Weikang Jiang, Weijian Li, Zhengsen Wang, Weishen Yang
Summary: In this study, an air breathing cathode was constructed by coupling electrocatalysts for the oxygen reduction reaction in the cathode of nickel-zinc batteries, which improved the performance of Ni-Zn batteries. The novel battery (Ni-ZnAB) exhibited outstanding energy efficiency and long cycle life under lean electrolyte conditions, surpassing traditional Ni-Zn batteries. Furthermore, a mold cell with rich electrolyte achieved an ultrahigh stability, demonstrating the strong application potential of Ni-ZnAB.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Hongling Song, Yuan Peng, Chenlu Wang, Lun Shu, Chenyu Zhu, Yanlei Wang, Hongyan He, Weishen Yang
Summary: Introducing low dose amino side groups into metal-organic framework nanosheet membranes enables high-purity H-2 production and precise decarbonization. The optimized amino membranes set a new record in H-2/CO2 separation, demonstrating excellent molecular sieving ability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yuecheng Wang, Yujie Ban, Ziyi Hu, Weishen Yang
Summary: Highly compact metal-organic framework (MOF) membranes show promise in tackling challenging separation scenarios with industrial implications. Through a chemical self-conversion process, a continuous layer of layered double hydroxide (LDH) nanoflakes on an alumina support can transform into a MIL-53 membrane, resulting in highly compact architecture. This membrane can effectively dehydrate formic acid and acetic acid solutions and maintain stability in a corrosive chemical environment with a pH as low as 0.81. The energy consumption is significantly reduced compared to traditional distillation, saving up to 77%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Shiqing Hu, Bingjie Pang, Liming Zhang, Zhongwei Cao, Peng Zhang, Yunjie Ding, Ryan O'Hayre, Xuefeng Zhu, Weishen Yang
Summary: Preventing Ni oxidation and carbon deposition in CO2 electrolysis is a critical challenge for solid oxide electrolysis cells (SOECs). This study reveals that the Nernst voltage, in relation to the operating voltage, controls these reactions and enables the establishment of a reaction phase diagram. The successful demonstration of pure CO2 electrolysis without Ni oxidation and carbon deposition is achieved in Ni-based cathode supported SOECs.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Lixiao Zhang, Liming Zhang, Shiqing Hu, Xuefeng Zhu, Weishen Yang
Summary: In this study, a novel cathodic electrochemical activation method was proposed to construct a nano-Au/reduced-CeO2 interface, resulting in significantly improved CO2 electroreduction performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Multidisciplinary Sciences
Meng Zhao, Dong-Dong Zhou, Pin Chen, Yujie Ban, Yuecheng Wang, Ziyi Hu, Yutong Lu, Mu -Yang Zhou, Xiao-Ming Chen, Weishen Yang
Summary: Reliable membranes for hydrogen/carbon dioxide (H2/CO2) separation at high temperatures are urgently needed for sustainable energy. In this study, molecule gatekeepers locked in metal-organic framework membranes were used to address the challenge. Ab initio calculations and in situ characterizations showed that the molecule gatekeepers dynamically reshaped the sieving apertures to be tightly selective for CO2 at high temperatures and restored under cooler conditions, resulting in a significant improvement in H2/CO2 selectivity.
Review
Chemistry, Multidisciplinary
Weili Xie, Kaiyue Zhu, Hanmiao Yang, Weishen Yang
Summary: This article summarizes six key strategies for zinc anode research, including the use of 3D structures, coatings, alloying, additives, separators, and charge protocols. These strategies not only provide insights for improving zinc anodes but also enable flexible combinations to further enhance their overall performance. The article also proposes several future research directions, advancing the development of rechargeable alkaline zinc-based batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lun Shu, Yuan Peng, Hongling Song, Chenyu Zhu, Weishen Yang
Summary: A modular customization strategy was used to fabricate efficient metal-organic framework (MOF) membranes. MOF material screening, defect-free membrane output, membrane physicochemical property regulation, and separation applications can be rapidly achieved by separately designing and modifying the MOF module within the membrane. High separation performance can easily be achieved, meeting diverse separation requirements.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Weikang Jiang, Kaiyue Zhu, Weishen Yang
Summary: Aqueous zinc-ion batteries (ZIBs) are attracting attention due to their advantages. Vanadium-based cathode materials, with high theoretical capacity and diversified structures, are widely researched, but their practical applications are limited due to poor long-term cycling stability. This review focuses on the critical issues faced by vanadium-based cathodes in aqueous ZIBs, and proposes potential solutions. It summarizes the ion storage mechanisms, critical parameters affecting performance, and progress made in addressing the problems. Future directions for the development of practical aqueous ZIBs are suggested.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Engineering, Chemical
Hongling Song, Yuan Peng, Kun Li, Lun Shu, Chenyu Zhu, Weishen Yang
Summary: Researchers have successfully fabricated a low-cost two-dimensional membrane by using a rapid in situ growth strategy at room temperature, which has a few-layered thickness and intriguing surface undulations. This membrane showed excellent molecular sieving ability and opens up a new avenue for future scale-up of membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kaiyue Zhu, Hongxin Wang, Weikang Jiang, Weili Xie, Xu Li, Zhenghao Jia, Weishen Yang
Summary: In this study, MoVTe oxide with an M1 phase was used as a potential cathode material for aqueous Zn-ion batteries. The material exhibited broad and robust tunnels that facilitated reversible Zn2+ insertion/extraction and rich redox centers for charge redistribution, resulting in good battery performance. The storage mechanism of Zn2+ was observed at the atomic scale and the location of zinc ions within the cathode was accurately determined.
