Article
Chemistry, Inorganic & Nuclear
Feng Zhao, Shuangde Li, Yunfa Chen
Summary: The Ce-Zr oxide solid solution with different Zr dopants can significantly enhance oxygen storage capacity and thermal stability. Ethanol addition to the carboxylic acid solvent further increases oxygen vacancy concentration and improves oxygen storage capacity. Introducing ethanol can suppress Zr migration from the lattice to the surface of CeO2 at 1000 degrees C, enhancing oxygen storage capacity and thermal stability.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Thermodynamics
Azhar Abbas Khosa, J. Yan, C. Y. Zhao
Summary: This study introduces ZnO as a new doping material for the CaCO3/CaO TCES system, showing the optimization of system performance by adjusting ZnO loading, presenting the reaction kinetics of doped and undoped systems in the decarbonation step, as well as the energy storage capacity and cyclic stability of the system.
Article
Engineering, Environmental
Wei Tan, Shaohua Xie, Xin Wang, Chunying Wang, Yaobin Li, Thomas E. Shaw, Lu Ma, Steven N. Ehrlich, Annai Liu, Jiawei Ji, Fei Gao, Lin Dong, Fudong Liu
Summary: The study focuses on the improvement of Pt-CeO2 catalysts by designing new ceria-based supports. Through a unique T-IWI method, a Pt single site catalyst with excellent thermal stability was synthesized on a CZA-T support. The catalyst showed higher oxidation activity and Oxygen storage capacity (OSC) compared to traditional Pt catalysts on regular CeO2/Al2O3 and one-step prepared CeZrOx/Al2O3 supports. The higher Pt dispersion and stronger Pt-O-Ce interaction on the CZA-T support played a vital role in the CO oxidation performance and OSC of the catalyst.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Liang Wang, Xipeng Lin, Han Zhang, Long Peng, Haisheng Chen
Summary: This study investigates the transient behavior of a 10 MW/8 h Joule-Brayton PHES system under four operation modes, including series, parallel, in-sequence, and the innovative "temperature complementation," through numerical simulations considering coupling dynamics, transient heat transfer, and thermodynamics. The series-connected reservoirs array has better round-trip efficiency and delivery variation than the parallel and in-sequence operating modes of the singular reservoir PHES. The innovative "temperature complementation" operation mode further improves delivery stability and reduces the TES reservoir volume with improved efficiency.
Article
Energy & Fuels
Franz Trieb, Pai Liu, Gerrit Koll
Summary: This paper presents a simulation model for Thermal Storage Power Plants (TSPP) that can cover highly variable residual load patterns during the transition from fossil to renewable electricity supply. TSPP can generate highly flexible power on demand using electricity surplus from the grid, photovoltaic power, biomass, and natural gas. The feasibility of TSPP is tested for different configurations using a simulation model, and its technical and economical performance are analyzed based on a renewable electricity scenario in Germany.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Satyajit Panda, Md Jahiruddin Gazi, Rajaram Bal, Ankur Bordoloi
Summary: Recently, the bi-reforming of methane has gained attention as an alternative to traditional synthesis gas generation processes due to its achievable H2/CO ratio and utilization of biogas substitute. However, commercial implementation faces challenges such as catalyst deactivation and coke formation. Therefore, developing stable and active catalysts is important for improved performance.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Elisabeth Thiele, Felix Ziegler
Summary: This paper introduces a sorption-based energy storage technology and predicts power output and storage efficiency through thermal operation maps. This technology can be arbitrarily charged and discharged with both heat and electrical power, with high efficiency and energy storage density.
Article
Energy & Fuels
Bojing Wu, Huanzhi Zhang, Chaowei Huang, Qingfeng Zhang, Zongxu Sun, Fen Xu, Lixian Sun, Yongpeng Xia, Hongliang Peng, Xiangcheng Lin, Yongjin Zou, Hailiang Chu, Pengru Huang, Erhu Yan, Bin Li
Summary: In this study, a three-dimensional phase change composite (PCC) was designed and fabricated, which demonstrated high thermal conductivity, excellent solar-thermal conversion efficiency, and high energy storage density. The PCC showed a well-defined 3D interconnected structure, stable thermal performance, good leakage-proof and thermal regulation performance.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Chemistry, Applied
Feng Zeng, Chalachew Mebrahtu, Longfei Liao, Regina Palkovits, Anna Katharina Beine
Summary: This review summarizes the recent progress in the stability and deactivation mechanisms of OER catalysts. The correlation between OER activity and stability, methodologies and experimental techniques for studying stability and deactivation, as well as factors influencing stability are discussed. Strategies for stabilizing and regenerating OER catalysts, as well as methods for predicting stability, are also summarized. Furthermore, the review highlights emerging methodologies yet to be explored and future directions for stability studies and the design of highly stable OER catalysts.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Chemical
Ailton Cesar Lemes, Gabrielle Victoria Gauterio, Cezar Augusto da Rosa, Adriano Brandelli, Susana Juliano Kalil
Summary: This study purified and characterized a keratinolytic protease produced by Bacillus sp. P45 through the bioconversion of feather meal. The purification process involved the use of aqueous two-phase systems (ATPS) and diafiltration (DF) to obtain a highly purified enzyme. The purified protease was characterized in terms of protein profile, optimum temperature and pH, thermal deactivation, and performance in the presence of salts and organic solvents. The results provide valuable information for future studies on enzyme purification and the application of protease in various industrial processes.
Article
Materials Science, Multidisciplinary
G. Ranga Rao, Mohamed Mukthar Ali, Somasree Roychowdhury, Lakshmi Prasad
Summary: High entropy oxide (Mg0.2Co0.2Ni0.2Cu0.2Zn0.1)O was successfully synthesized using sol-gel combustion method, showing excellent redox property, thermal stability, oxygen storage capacity, and thermal recyclability.
Article
Materials Science, Ceramics
Hongye Wang, Rui Huang, Hua Hao, Zhonghua Yao, Hanxing Liu, Minghe Cao
Summary: Reasonable amorphous structure is applied to improve the dielectric and energy storage properties of dielectric film capacitors. The high breakdown strength and energy storage density are achieved in the BaTiO3-5wt%B2O3 amorphous thin film due to its disordered structure and intrinsic high insulative for B2O3. The amorphous thin film exhibits a high discharge energy storage density of 68.64 J cm-3 and an efficiency of 85% at 7.3 MV cm-1, along with excellent thermal stability (20-200 degrees C) and cyclic stability (up to 105 times).
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Qi Wan, Li-Jun Jiang, Zhi-Nian Li, Yang Yang, Shu-Mao Wang, Xiao-Peng Liu
Summary: The effect of LaNi and Ti on the thermal storage properties of MgH2 was investigated. The addition of LaNi and Ti significantly improved the thermal storage performance of Mg. The results indicate that Mg-15 wt%Ti-5 wt%LaNi has the closest formation enthalpy to pure MgH2 and exhibits the highest cyclic stability among all the samples. The improvement in thermal storage performance is mainly attributed to the synergistic effect of in situ formed La4H12.19, Mg2NiH4, H0.3Mg2Ni, and TiH2 particles during the cyclic process.
Article
Thermodynamics
Elliot Scuiller, Patrick Dutournie, Mohamed Zbair, Simona Bennici
Summary: Determining the thermo-physical properties of hygroscopic and reactive solid materials is challenging due to lack of precision and contradictory results. Various techniques have been compared to improve measurement accuracy. The transient hot disk method is not suitable for estimating thermal conductivity and specific heat capacity, but it can provide a good estimation of thermal effusivity. The thermal conductivity and specific heat capacity were investigated using the hot wire method and TG-DSC, respectively.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Allison Mahvi, Kedar Prashant Shete, Adewale Odukomaiya, Jason Woods
Summary: This paper presents methods to measure the total capacity and thermal resistances in heat exchangers with integrated phase change materials. The results demonstrate how thermal resistances evolve with the state of charge and discharge rate in these devices, and quantify the impact of applied pressure on the contact resistance in composite phase change material heat exchangers. The proposed method allows for easy comparison between different systems and provides information on the thermal bottlenecks limiting performance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Green & Sustainable Science & Technology
Nicola Gargiulo, Antonio Peluso, Paolo Aprea, Ottavio Marino, Raffaele Cioffi, Elio Jannelli, Stefano Cimino, Luciana Lisi, Domenico Caputo
Article
Chemistry, Applied
S. Cimino, L. Lisi, A. Erto, F. A. Deorsola, G. de Falco, F. Montagnaro, M. Balsamo
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Stefano Cimino, Francesca Boccia, Luciana Lisi
JOURNAL OF CO2 UTILIZATION
(2020)
Article
Chemistry, Applied
Virginia Venezia, Filomena Sannino, Aniello Costantini, Brigida Silvestri, Stefano Cimino, Valeria Califano
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Review
Chemistry, Physical
Luciana Lisi, Stefano Cimino
Article
Chemistry, Physical
Stefano Cimino, Elisabetta Maria Cepollaro, Luciana Lisi, Stefano Fasolin, Marco Musiani, Lourdes Vazquez-Gomez
Summary: The development of highly conductive structured catalysts with enhanced mass- and heat-transfer features is needed for the intensification of strongly exothermic catalytic hydrogenation of CO2. Thin porous CeO2 layers deposited on Ni foams produced active catalytic sites for the hydrogenation of CO2, and the dispersion of Ru within the pores of the CeO2 layer further boosted the methanation activity.
Article
Environmental Sciences
Giuseppe Vitiello, Virginia Venezia, Mariavittoria Verrillo, Assunta Nuzzo, Judith Houston, Stefano Cimino, Gerardino D'Errico, Antonio Aronne, Luigi Paduano, Alessandro Piccolo, Giuseppina Luciani
Summary: Hybrid humic acid/titanium dioxide nanostructured materials show promising antibacterial activity against various pathogens and selective sequestering of specific antibiotics, with a technological approach highlighted for the design of multifunctional nanomaterials addressing environmental and health problems related to water contamination by antibiotics and pathogens.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Applied
E. M. Cepollaro, D. Caputo, N. Gargiulo, F. A. Deorsola, S. Cimino, L. Lisi
Summary: A series of monometallic and bimetallic Cu/Mg oxide-based structured catalytic sorbents were synthesized and tested for the purification of simulated biogas from H2S. The bimetallic CuMg catalytic sorbents showed fast H2S removal rates, high capacity, and easy regenerability.
Article
Engineering, Environmental
Stefano Cimino, Roberta Russo, Luciana Lisi
Summary: This study experimentally investigated the synergistic and mechanistic aspects between CO2 capture and methanation reactions over lithium-ruthenium/Al2O3 dual function materials, revealing that the favorable synergism at the nanoscale between the Li-aluminate sorbent phase and the catalytic Ru sites can enhance the intrinsic activity of the materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Elisabetta Maria Cepollaro, Renata Botti, Giorgia Franchin, Luciana Lisi, Paolo Colombo, Stefano Cimino
Summary: Geopolymer-based monoliths were investigated as structured catalysts for NH3-SCR of NOx, showing good activity and high selectivity to N-2. The monolithic catalysts preserved the Cu-exchanged zeolite features and exhibited excellent mechanical strength, demonstrating hierarchical structure and good performance in reducing nitrogen oxides.
Article
Chemistry, Physical
Stefano Cimino, Elisabetta Maria Cepollaro, Luciana Lisi
Summary: The impact of sulfur poisoning on Dual Function Materials (DFM) used for combined CO2 capture and methanation was investigated. The results showed that the process exhibited remarkable tolerance to high concentrations of SO2 due to a self-regeneration mechanism.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Applied
C. Russo, A. Ciajolo, S. Cimino, V. La Matta, A. La Rocca, B. Apicella
Summary: Soot oxidation kinetics and its relationship to nanostructure were studied in this research. The study found that soot oxidation is a multistep process with two activation energies. The nanostructure of soot has an impact on its propensity to be oxidized.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Elisabetta Maria Cepollaro, Stefano Cimino, Luciana Lisi, Mattia Biesuz, Balanand Santhosh, Gian Domenico Soraru
Summary: The study focused on enhancing the catalytic methanation of CO2 by using polymer-derived SiC open-cell foams as structured carriers, with appropriate pyrolysis temperatures preventing the formation of unwanted SiO2 layer and showing good mechanical strength and compatibility with the Ru/Al2O3 active catalytic overlayer.
Article
Engineering, Environmental
Marica Muscetta, Samar Al Jitan, Giovanni Palmisano, Roberto Andreozzi, Raffaele Marotta, Stefano Cimino, Ilaria Di Somma
Summary: A visible light-driven photocatalytic hydrogen production system using a Cu2O/TiO2 composite material was evaluated. A simple ball-milling method was proposed for preparing the Cu2O/TiO2 photocatalyst, and the effects of Cu2O loading and operating conditions were analyzed. The results indicated that the optimized composite catalyst achieved high hydrogen production and light to chemical conversion under visible light conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Elisabetta M. Cepollaro, Domenico Caputo, Stefano Cimino, Nicola Gargiulo, Luciana Lisi
C-JOURNAL OF CARBON RESEARCH
(2020)