Article
Chemistry, Physical
Hyun Suk Lim, Minbeom Lee, Yikyeom Kim, Dohyung Kang, Jae W. Lee
Summary: This work introduces LaCo1-xNixO3 perovskite catalysts for enhancing the low temperature performance of reverse water-gas shift reaction. By incorporating Ni to lower the interaction between La-site and B-site, the catalysts achieved control over CO2 conversion and CO selectivity, ultimately maximizing RWGS activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Sheng Dai, Tzu-Hsi Huang, Wei- Liu, Chia-Wei Hsu, Sheng-Wei Lee, Tsan-Yao Chen, Ya-Chen Wang, Jeng-Han Wang, Kuan-Wen Wang
Summary: The electrochemical CO2 reduction reaction serves as a viable alternative to convert intermittent electricity from renewable sources to value-added chemicals. The development of economic catalysts with high efficiency is critical in accelerating CO2 utilization technology. The Au-Cu alloyed core-shell catalyst shows superior performance in CO2-to-CO electrochemical conversion.
Article
Engineering, Environmental
Haocheng Li, Bing Ma, Jingqing Tian, Chen Zhao
Summary: In this study, a Ru-Sn/La2O2CO3 catalytic system was prepared, achieving over 99% selectivity of CO during CO2 hydrogenation at 400 degrees C and realizing the reverse water-gas shift process. The CO2 hydrogenation rate of this catalyst was 10^3 times higher than the best reported data, showing high activity and stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
K. V. Vikanova, A. L. Kustov, E. A. Makhov, O. P. Tkachenko, G. I. Kapustin, K. B. Kalmykov, I. V. Mishin, V. D. Nissenbaum, S. F. Dunaev, L. M. Kustov
Summary: The study shows that Re-containing catalysts synthesized based on two types of superacid oxide supports exhibit significant differences in their textural and chemical properties. Re2O7/SZ catalyst shows high selectivity towards CO conversion rate of over 94%, while Re-contained catalysts based on WZ support produce a large amount of methane.
Article
Chemistry, Multidisciplinary
Andriana Lymperi, Christos Chatzilias, Fotios Xydas, Eftychia Martino, Georgios Kyriakou, Alexandros Katsaounis
Summary: The hydrogenation of CO2 is crucial for sustainable fuel production and greenhouse gas reduction. Electrochemical promotion of catalysis (EPOC) has shown potential in improving catalytic activity and selectivity in this reaction. Designing an effective electrocatalytic reactor remains a challenge, but the use of a low-temperature solid oxide electrolyte fuel cell (SOFC) reactor has been studied for promoting CO2 hydrogenation.
Article
Chemistry, Multidisciplinary
Mengdong Nie, Aixin Cui, Man Wu, Tuo Guo, Qingjie Guo
Summary: This study elucidates the correlation of metal-support interactions in CuO/LaCeOx catalysts and the promotion of catalytic activity. It is found that the introduction of La enhances the conversion of Ce4+ into Ce3+ in the catalyst and activates the formate reaction pathway of CO2 hydrogenation.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
J. C. Navarro, C. Hurtado, M. Gonzalez-Castano, L. F. Bobadilla, S. Ivanova, F. L. Cumbrera, M. A. Centeno, J. A. Odriozola
Summary: The production of CO through the Reverse Water Gas Shift (RWGS) reaction is a suitable method for CO2 valorization. This study investigates a series of modified spinels AB2O4 as RWGS catalysts and rationalizes the structure-to-function relationships derived from changes in the A-site cation. Among the ferrite systems, the main activity and selectivity of the RWGS reaction are governed by the B-site cation, while the variations in the A-site metals determine the catalysts' structural features and stability in the reaction. Among the catalyst series, the ferrites modified with Cu and Ni, which have a greater oxygen vacancy population enabled by the partial allocation of cations into the tetrahedral sites, exhibited superior RWGS performance.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Biotechnology & Applied Microbiology
Muhammad Tawalbeh, Rana Muhammad Nauman Javed, Amani Al-Othman, Fares Almomani, Saniha Ajith
Summary: The development of alternative fuel generation technologies is driven by climate change, global warming, and the depletion of fossil fuels. The conversion of CO2 into valuable products using noble metal catalysts shows promise for reducing CO2 emissions. This study explores various factors that affect the catalytic performance of CO2 hydrogenation, such as preparation techniques, supporting materials, noble metal loading, and reaction mechanisms. The results demonstrate enhanced CO2 conversion and selectivity using noble metal catalysts, particularly gold-based catalysts with nano-sized zinc oxide particles.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Chemistry, Physical
Ali M. Abdel-Mageed, Klara Wiese, Ashlee Hauble, Joachim Bansmann, Jabor Rabeah, Magdalena Parlinska-Wojtan, Angelika Brueckner, R. Jurgen Behm
Summary: By investigating oxide-supported Ru catalysts, it was found that the support particle size can influence the selectivity of the catalyst, thus controlling the formation of CO2 reduction reaction products. High-temperature treatment leads to an increase in oxygen vacancies and charge transfer, resulting in alterations to the catalyst's reaction characteristics.
JOURNAL OF CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Shidong Bao, Tao Liu, Heyun Fu, Zhaoyi Xu, Xiaolei Qu, Shourong Zheng, Dongqiang Zhu
Summary: This study demonstrates that CO2 hydrogenation can be tuned from CH4 to CO by phosphating Ni-based catalysts due to the geometric effect. Nickel phosphide catalysts with different crystalline phases show different CO2 conversion, with Ni12P5 being more active. Confining small Ni12P5 nanoparticles in mesoporous SiO2 channels enhances the activity due to the confinement effect. The results suggest that Ni12P5@SBA-15 can achieve near-unity CO selectivity and enhanced activity for CO2 hydrogenation by combining the geometric effect and the confinement effect.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
J. Gandara-Loe, E. Portillo, J. A. Odriozola, T. R. Reina, L. Pastor-Perez
Summary: The study investigated the impact of potassium (K) in Ni/CeO2 catalyst for low-temperature RWGS reaction, aiming to find the optimal catalyst. The 1K catalyst showed the best compromise between CO2 conversion, suppression of CO2 methanation, and enhancing CO selectivity. The experimental results were supported by thermodynamics process modeling, highlighting the promising behavior of the designed catalysts in CO2 high-scale units.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Kai Feng, Jiaming Tian, Man Guo, Yaning Wang, Shenghua Wang, Zhiyi Wu, Jingpeng Zhang, Le He, Binhang Yan
Summary: By systematically investigating the size-dependent catalytic performance of Ni-based catalysts, the primary pathway for Ni-catalyzed CO2 hydrogenation was determined to be the reverse water-gas shift (RWGS) followed by H-2-assisted CO dissociation and hydrogenation pathway.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Chemistry, Physical
Luiz H. H. Vieira, Leticia F. Rasteiro, Cassia S. Santana, Gabriel L. L. Catuzo, Alisson H. M. da Silva, Jose M. Assaf, Elisabete M. M. Assaf
Summary: Following advances in capture technologies, utilizing low-cost renewable H-2 in catalytic hydrogenation for CO2 utilization shows great potential in reducing the carbon footprint of industrial processes by providing valuable chemicals and fuels. However, the scalability and economic viability of these processes heavily rely on the development of efficient catalysts. This review summarizes recent progress in noble metal-based heterogeneous catalysts for the thermocatalytic conversion of CO2 into various products, highlighting their impact on catalyst properties and discussing challenges and potential future research opportunities.
Article
Chemistry, Physical
Nils Ortner, Dan Zhao, Hesham Mena, Jana Weiss, Henrik Lund, Stephan Bartling, Sebastian Wohlrab, Udo Armbruster, Evgenii V. Kondratenko
Summary: CO2 hydrogenation to methanol proceeds through two parallel reactions, with CH3OH decomposition mainly contributing to the loss of CH3OH selectivity. The decomposition is accelerated by H2O but negatively affected by H2 and rising total pressure. The reaction occurs on separate sites from CH3OH synthesis and can be suppressed by site saturation. This concept provides fundamental insights for catalyst design and reaction optimization for selective CH3OH synthesis.
Article
Chemistry, Physical
Nazmul Hasan Md Dostagir, Rattanawalee Rattanawan, Min Gao, Jin Ota, Jun-ya Hasegawa, Kiyotaka Asakura, Atsushi Fukouka, Abhijit Shrotri
Summary: The study presents a catalyst with isolated Co atoms in ZrO2 that enhances CO selectivity during CO2 hydrogenation by utilizing oxygen vacant sites. The synergy between Co and Zr is crucial for generating oxygen vacancies and stabilizing formate intermediates, leading to the control of product selectivity in CO2 hydrogenation reactions.
Article
Energy & Fuels
Muhammad Tawalbeh, Rana Muhammad Nauman Javed, Amani Al-Othman, Fares Almomani
Summary: Biofuel cells are a novel technology for the production of potable water/electricity and self-powered biosensors. However, they suffer from drawbacks such as short lifespan and difficulty in optimizing operating conditions, leading to low power densities and reduced efficiencies. The use of nanomaterials in bio-electrode construction has shown promising improvements in performance, particularly carbon-based nanostructures.
Article
Green & Sustainable Science & Technology
Rana Muhammad Nauman Javed, Amani Al-Othman, Muhammad Tawalbeh, Abdul Ghani Olabi
Summary: Graphene and its derivatives show great potential in proton exchange membrane fuel cells (PEMFCs) due to their unique characteristics. They can address the operational challenges in PEMFCs and improve the structural modifications, proton conductivity, and power density. They also exhibit promising performance in other fuel cells.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)