Article
Engineering, Chemical
Chunlai Dong, Fukuan Jiang, Lei Yang, Canglong Wang, Kui Xie
Summary: In this study, high-efficiency electrochemical reforming of CO2 and CH4 into syngas was achieved by constructing metal-oxide interfaces in solid oxide electrolysis cells (SOECs). The exsolved metal-oxide interfaces demonstrated improved activity and stability, enabling the conversion of CO2 and CH4 to syngas for more than 70 hours and 7 redox cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Electrochemistry
Yun Zheng, Zhongwei Chen, Jiujun Zhang
Summary: Solid oxide electrolysis cells (SOECs), including oxygen ion-conducting SOEC (O-SOEC) and proton-conducting SOEC (H-SOEC), have been actively researched as next generation electrolysis technologies with high-energy conversion efficiencies, providing higher-temperature routes for energy storage and conversion. Current focus is on optimizing performance and stability, as well as promoting wider practical implementation.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
P. Kazempoor, J. Asadi, R. J. Braun
Summary: This study addresses the challenges in modeling solid oxide electrolysis cells (SOECs) with feed gases containing low steam-to-CO2 concentration ratios. The common approach of neglecting the CO2 electrochemical reduction reaction in SOEC modeling is validated against experimental results. The validation results show that the model deviation with experimental data increases at certain current densities. It is also shown that when the steam flow supplied to the cell is high enough to support the water-gas shift reaction, the electrochemical reaction involving CO2 can be neglected.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Eric Jacobasch, Gregor Herz, Christopher Rix, Nils Mueller, Erik Reichelt, Matthias Jahn, Alexander Michaelis
Summary: The transition from fossil-based primary steel production to low-emission alternatives is gaining attention, with focus on Carbon Capture and Utilization (CCU) and Carbon Direct Avoidance (CDA) technologies. An economic model is used to analyze production costs and CO2 mitigation costs of different technologies, providing insights into future market trends and potential legislative support mechanisms.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Marko Malinovic, Paul Paciok, Ezra Shanli Koh, Moritz Geuss, Jisik Choi, Philipp Pfeifer, Jan Philipp Hofmann, Daniel Goehl, Marc Heggen, Serhiy Cherevko, Marc Ledendecker
Summary: In this study, a precise control over the size of structurally ordered iridium oxide nanoparticles is achieved during high-temperature thermal treatment by utilizing a silica nanoreactor as a hard template. This approach maintains high durability while avoiding the common problem of reduced surface area and altered particle morphology.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Toru Uenishi, Masaya Ibe
Summary: Electrically transforming CO2 into useful chemicals is a key strategy for carbon-neutral recycling. However, existing catalysts for CO2 electrolysis lack activity, stability, and selectivity. This study evaluated the effect of surface area on the performance of CO2 electrolysis cells using an anionic membrane electrode assembly, providing guidelines for improving catalytic performance and promoting carbon neutrality efforts.
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
Nanoscience & Nanotechnology
Nicholas Kane, Zheyu Luo, Yucun Zhou, Yong Ding, Alex Weidenbach, Weilin Zhang, Meilin Liu
Summary: Proton-conducting reversible solid oxide cells are a promising technology for efficient conversion between electricity and chemical fuels, making them well-suited for the deployment of renewable energies and load leveling. The bilayer electrolyte design combines a highly conductive electrolyte with a highly stable protection layer, enhancing chemical stability while maintaining high electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Md Osim Aquatar, Juili S. Mankar, Urvashi Bhatia, Sadhana S. Rayalu, Reddithota J. Krupadam
Summary: Highly efficient CO2 capture at elevated temperatures has been achieved using few-layered graphene nanosheets prepared from solid waste from high energy explosive materials industry. The materials demonstrated high adsorption capacity, selectivity towards CO2, fast adsorption kinetics, and recycling stability, making them promising for real-life CO2 capture applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhitong Wang, Yansong Zhou, Dongyu Liu, Ruijuan Qi, Chenfeng Xia, Mingtao Li, Bo You, Bao Yu Xia
Summary: In this study, a carbon-confined indium oxide electrocatalyst was developed for stable and efficient CO2 reduction. The research shows that carbon protection can prevent the oxidation of indium and enhance the selectivity and activity of the reaction towards CO2 reduction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
X. Liu, G. Licht, S. Licht
Summary: A novel and inexpensive method for synthesizing helical carbon nanotubes from CO2 has been proposed in this study. By controlling the molten electrolyte carbonate synthesis to induce defect formation and increasing the electrolysis rate, a high yield of helical nanotubes can be achieved.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Thermodynamics
Duncan A. Nowicki, Gerry D. Agnew, John T. S. Irvine
Summary: This article presents a conceptual design for a small-scale green ammonia plant, where ammonia synthesis is achieved by reacting hydrogen produced by a solid oxide electrolyzer with nitrogen purified from air using a series of solid electrolyte oxygen pumps. The system operates with an energetic efficiency of 52.12%, which is very close to a cryogenic ASU reference system achieving an efficiency of 52.89%. The specific energy consumption is 9.94 kWh/kgNH3. Although these results are promising, there are opportunities to further improve the system design, such as enhancing heat integration to utilize waste heat from the series of oxygen pumps for raising the steam required by the electrolyzer.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Abdullah A. AlZahrani, Ibrahim Dincer
Summary: Solid oxide electrolysis is an efficient and sustainable method for hydrogen production from water, but the high operating temperature poses a challenge due to increased degradation rate. This study investigates the performance and microstructure of a novel thin-electrolyte solid oxide cell under high steam to hydrogen ratios.
Article
Multidisciplinary Sciences
Zhuo Xing, Lin Hu, Donald S. Ripatti, Xun Hu, Xiaofeng Feng
Summary: The study found that a hydrophobic microenvironment can significantly enhance CO2 gas-diffusion electrolysis efficiency. Furthermore, a balanced gas/liquid microenvironment can reduce the diffusion layer thickness, accelerate CO2 mass transport, and increase CO2 local concentration for electrolysis.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Anqi Wu, Chaolei Li, Beibei Han, Wu Liu, Yang Zhang, Svenja Hanson, Wanbing Guan, Subhash C. Singhal
Summary: This study investigates the stability and conversion rate of a large-scale flat-tube SOEC under cyclic operation using a pulsed current strategy. The results demonstrate the significant advantages of SOEC in efficient electrochemical energy conversion, carbon emission mitigation, and seasonal energy storage.
Article
Materials Science, Multidisciplinary
Honggyun Kim, Jamal Aziz, Vijay D. Chavan, Deok-kee Kim
Summary: Silicon nitride films were prepared using plasma enhanced chemical vapor deposition with different trap densities induced by adjusting the RF power ratio. It was found that the film's trap density was lowest under compressive stress and increased under tensile stress. This study has significant implications for the formation of durable nitride films in various electronic and optoelectronic applications.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Qiang Yu, Huwei Zhao, Yue Zhao
Summary: Zinc oxide thin films and Al-doped zinc oxide films were prepared and characterized in this study. The addition of Al ions was found to change the growth orientation, increase the grain size, and enhance the absorption intensity in the visible light region. Furthermore, the addition of Al ions also increased the forward current in the heterojunction.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Sang Woo Lee, Min Sun Park, Sangwon Wi, So Yeon Lim, Yeseul Lee, Jin-Seok Chung, Sang Mo Yang
Summary: In this study, we investigated the dynamics of domain switching in pristine and fatigued BiFeO3 capacitors through experimental observations and measurements. The results showed that the switching in the pristine capacitors was dominantly driven by domain growth, while the fatigued capacitors exhibited two different switching dynamics, in which nucleation played a critical role.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Boshi Wang, Tianyi Wang, Yufang Liu, Kun Yu
Summary: In this paper, a tunable and anisotropic perfect absorber composed of anisotropic black phosphorus (BP) and isotropic graphene is proposed. The structure exhibits high absorption and strong anisotropic plasma response. The resonance characteristics can be effectively controlled by adjusting geometric parameters and doping levels, offering potential applications.
CURRENT APPLIED PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xiaolan Liu, Chunyang Li, Tonghui Yang, Naiqiang Yin, Gangling Zhao
Summary: Water drop triboelectric nanogenerators (WD-TENGs) can harvest energy from raindrops and improve the output performance of TENGs.
CURRENT APPLIED PHYSICS
(2024)