Article
Chemistry, Multidisciplinary
E. A. Avdeenko, K. A. Nadeina, O. V. Klimov, T. V. Larina, E. Yu. Gerasimov, I. S. Golubev, A. S. Noskov
Summary: The influence of different alumina precursors (pseudoboehmites) on the catalytic activity of CoMo/ASA + Al2O3 catalysts in FCC gasoline hydrotreating has been studied. The choice of pseudoboehmite significantly affects the properties of the supports and catalysts, including texture, acidity, mechanical properties, and dispersion of the active phase. The type of pseudoboehmite also affects the amount of tetrahedral cobalt in the catalysts, thereby influencing the surface activity. Additionally, a linear relationship is found between the ratio of medium and weak acid sites and catalyst selectivity.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Environmental Sciences
Mikhail A. Ershov, Ekaterina Grigorieva, Tamer M. M. Abdellatief, Vladimir M. Kapustin, Mohammad Ali Abdelkareem, Mohammed Kamil, A. G. Olabi
Summary: Low-carbon fuel is the main trend in oil refining industry development. A novel approach for producing low-carbon high-octane oxygenated environmentally friendly motor gasoline has been proposed, leading to successful production of high-octane environmentally friendly motor gasoline, which can reduce environmental impacts and improve product quality.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Mariya A. Kazakova, Anna A. Salomatina, Vasily Yu. Pereyma, Igor P. Prosvirin, Arcady V. Ishchenko, Oleg V. Klimov, Aleksandr S. Noskov, Maxim O. Kazakov
Summary: Carbon coated alumina (C@Al2O3) samples with different degrees of support graphitization were prepared and their influence on the sulfide component and catalytic performance of CoMoS catalysts was studied. Increasing the graphitization degree improved the dispersion of sulfide particles and the content of the CoMoS phase, thereby increasing the selectivity of CoMoS/C@Al2O3 catalysts in the hydrodesulfurization of FCC naphtha. Tuning the support graphitization degree can adjust the selectivity of CoMoS catalysts in FCC naphtha hydrodesulfurization. A 74% graphitization degree reduced the sulfur content in FCC naphtha from 238 to 10 ppm with a slight decrease in octane number, demonstrating the potential of CoMoS/C@Al2O3 catalysts for commercial application in selective FCC naphtha hydrodesulfurization.
Article
Energy & Fuels
Xingyu Sun, Fan Zhang, Jingping Liu, Xiongbo Duan
Summary: This study developed a high-throughput method to predict the research octane number (RON) of gasoline by considering its properties and using the Random Forest (RF) algorithm. The experimental results showed that this method can accurately predict the RON of gasoline, thereby improving the production of commercial spark ignition engine fuels.
Article
Energy & Fuels
Yisheng Wu, Yusen Liu, Xinling Li, Zhen Huang, Dong Han
Summary: In this study, a determination model for research octane numbers (RONs) of gasoline fuels was developed using near-infrared (NIR) spectroscopy and artificial neural networks (ANN). The model was validated with 200 gasoline fuels from different regions in China, showing a high prediction accuracy. The contributions of the NIR spectra to the model were analyzed using the partial least squares regression method.
Article
Energy & Fuels
J. M. Herreros, F. Oliva, S. Zeraati-Rezaei, A. Tsolakis, J. Delgado
Summary: The study investigates the effects of using an aniline octane enhancer in commercial gasoline on the performance of a Three Way Catalytic Converter (TWC) coupled to a Gasoline Direct Injection (GDI) engine. The results show that the additive did not have any detrimental effect on the efficiency/performance of the TWC.
Article
Energy & Fuels
Olga V. Sapunaru, Ancaelena E. Sterpu, Mihaela Brinzei, Silviu Pascu, Claudia I. Koncsag
Summary: This study investigates the etherification of olefins in FCC gasoline, without separating isoamylenes. The experiment shows that using Purolite CT-275, a macroporous polymeric ion-exchange resin, and different alcohols (methanol, bioethanol, isopropanol, and 1-butanol) can significantly convert olefins, even the heavier C6-C9 compounds, reaching overall conversion rates of 70% with ethanol and 83% with isopropanol. This leads to an increase of up to two units in the Motor Octane Number of the gasoline. The study also optimizes the reactive distillation parameters using CHEMCAD 8 simulation and suggests a process flow for the etherification sequence in the FCC unit.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Energy & Fuels
Mikhail A. Ershov, Vsevolod D. Savelenko, Uliana A. Makhova, Vladimir M. Kapustin, Tamer M. M. Abdellatief, Nikolay Karpov, Eduard Dutlov, Dmitry Borisanov
Summary: This research paper proposes a method to boost the octane rating of low-octane gasoline by adding high-octane isoolefinic hydrocarbons. The study found that the addition of isoolefinic hydrocarbons significantly increased the motor octane number (MON) of the gasoline, indicating improved combustion performance in internal combustion engines.
Article
Engineering, Chemical
Jeremias Martinez, Maria Antonieta Zuniga-Hinojosa, Richard Steve Ruiz-Martinez
Summary: This study analyzes the effects of temperature, pressure, and H-2/HC ratio on catalytic reforming reactions and the production of high-octane gasoline from the perspective of thermodynamic equilibrium. The optimal conditions for the process were evaluated using the Gibbs free energy minimization method.
Article
Chemistry, Physical
Tamer M. M. Abdellatief, Mikhail A. Ershov, Vladimir M. Kapustin, Elena A. Chernysheva, Vsevolod D. Savelenko, Tareq Salameh, Mohammad Ali Abdelkareem, A. G. Olabi
Summary: Recently, there has been a rise in requirements for high-quality gasoline and an increase in demand. This research article proposes new insights into a novel octane hyperboosting phenomenon based on isoolefinic hydrocarbons as gasoline additives and its application on Fuzzy modeling. The results show that isooctene and isohexene can significantly improve engine performance, with higher motor octane numbers than pure isooctene and isohexene.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Zhengkai Cao, Xia Zhang, Chunming Xu, Xinlu Huang, Ziming Wu, Chong Peng, Aijun Duan
Summary: The study investigated the hydrocracking behaviors of typical aromatics in light cycle oil over NiMo and CoMo catalysts. It found that CoMo catalyst could hydrosaturate naphthalene to tetralin more efficiently, but had lower yield of high-value light aromatics compared to NiMo catalyst. NiMo catalyst showed higher selectivity in converting naphthalene into cyclanes than CoMo catalyst.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Review
Energy & Fuels
J. H. Badia, E. Ramirez, R. Bringue, F. Cunill, J. Delgado
Summary: This study summarizes a comprehensive review on available chemical molecules for advanced gasoline formulations for modern spark-ignited car engines, with a focus on ash-free technologies.
Article
Engineering, Chemical
Alirio Benavides, Carlos Zapata, Pedro Benjumea, Camilo A. Franco, Farid B. Cortes, Marco A. Ruiz
Summary: Petroleum-derived gasoline is the most widely used automotive fuel, and its antiknock performance is evaluated using the octane number (ON). Standard methods for measuring ON are expensive and not suitable for field monitoring or online analysis. This study aims to develop and evaluate three empirical methods for predicting ON using MIR spectra, GC-MS, and routine test data.
Article
Thermodynamics
Fengyu Zhang, Xinchao Su, Aoli Tan, Jingjing Yao, Haipu Li
Summary: In this study, a machine learning model was developed to handle highly non-linear and coupling relationships, and 35 important variables were selected for modeling out of 353 variables. The dragonfly algorithm was used to optimize the back propagation neural network and logistics regression process, resulting in a combined model that balanced local and global searching. The evaluation and validation of the model showed high accuracy and strong generalization ability, making it essential for gasoline refining.
Article
Energy & Fuels
Jihad Badra, Faisal Alowaid, Alma Alhussaini, Aqeelah Alnakhli, Abdullah S. AlRamadan
Summary: This study fills the knowledge gap by providing octane number measurements for MTBE blended with various pure components and gasoline fuels. The results show that the blending characteristics of MTBE with different components are not the same, and the octane numbers of the blends are dependent on the composition of the base gasoline fuel. Predictive models are developed to predict and optimize the octane boost caused by MTBE addition to gasoline fuels.
Article
Chemistry, Physical
Pavel Tkachenko, Victoria Volchek, Anna Kurenkova, Evgeny Gerasimov, Pavel Popovetskiy, Igor Asanov, Irina Yushina, Ekaterina Kozlova, Danila Vasilchenko
Summary: A new protocol for depositing platinum oxide particles onto TiO2 semiconductor using controllable hydrolysis of Pt(IV) hydroxide was developed. The prepared PtOx/TiO2 photocatalysts exhibit good activity for hydrogen production from aqueous ethanol and glucose solutions. The catalysts show high stability and efficiency, with even a low platinum content achieving significant hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Biochemistry & Molecular Biology
Svetlana Selishcheva, Anastasiya Sumina, Evgeny Gerasimov, Dmitry Selishchev, Vadim Yakovlev
Summary: The high-loaded copper-containing catalysts modified with Fe and Al were used to convert furfural to furfuryl alcohol (FA) or 2-methylfuran (2-MF) successfully. Characterization techniques were used to study the catalysts and understand the relationship between their activity and physicochemical properties. The fine copper-containing particles distributed in an amorphous SiO2 matrix with high surface area were responsible for the conversion of furfural to FA or 2-MF under high hydrogen pressure. The addition of Fe and Al to the mono-copper catalyst increased its activity and selectivity in the desired process. Temperature played a significant role in the selectivity of the products, with the highest selectivity towards FA (98%) and 2-MF (76%) achieved at 100℃ and 250℃ respectively for 35Cu13Fe1Al-SiO2 with an H-2 pressure of 5.0 MPa.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Vladimir V. Chesnokov, Igor P. Prosvirin, Evgeny Yu Gerasimov, Aleksandra S. Chichkan
Summary: A new method for synthesizing boron-doped carbon nanomaterial (B-carbon nanomaterial) is developed, involving the synthesis of graphene via the template method and the deposition of an additional boron-doped graphene layer. The properties of B-carbon nanomaterial, such as thickness and specific surface area, were studied using various techniques. The boron concentration in B-carbon nanomaterial was determined to be approximately 4 wt.%.
Article
Chemistry, Physical
Zaliya A. Fedorova, Vadim A. Borisov, Vera P. Pakharukova, Evgeniy Y. Gerasimov, Vladimir D. Belyaev, Tatyana I. Gulyaeva, Dmitriy A. Shlyapin, Pavel V. Snytnikov
Summary: Layered Ni-Mg-Al hydroxides with different Mg/Ni ratios and related oxide systems were synthesized and characterized. After heat treatment, Ni-Mg-Al-mixed oxides with a specific nanostructure were formed. LDH-derived Ni-Mg-Al catalysts showed superior catalytic performance in ammonia decomposition compared to existing analogues.
Article
Chemistry, Physical
Daria V. V. Yurpalova, Tatyana N. N. Afonasenko, Igor P. P. Prosvirin, Andrey V. V. Bukhtiyarov, Maxim A. A. Panafidin, Zakhar S. S. Vinokurov, Mikhail V. V. Trenikhin, Evgeny Yu. Gerasimov, Tatyana I. I. Gulyaeva, Larisa M. M. Kovtunova, Dmitry A. A. Shlyapin
Summary: Novel bimetallic Pd-Co catalysts supported on Sibunit carbon material were synthesized and used for selective acetylene hydrogenation to produce ethylene. Increasing the Pd:Co molar ratio from 1:0 to 1:2 in 0.5%Pd-Co/C catalysts, treated at 500 degrees C under hydrogen, led to an increase in ethylene selectivity from 60 to 67% (T = 45 degrees C). The catalysts were characterized using various methods and it was found that the optimal catalytic properties were observed in catalysts with a Pd:Co molar ratio of 1:2-1:4.
Article
Materials Science, Composites
Sofya. D. D. Afonnikova, Grigory. B. B. Veselov, Yury. I. I. Bauman, Evgeny. Y. Y. Gerasimov, Yury. V. V. Shubin, Ilya. V. V. Mishakov, Aleksey. A. A. Vedyagin
Summary: The unique properties of carbon nanofiber-based composite materials make them attractive for scientific research and manufacturing. This study proposes a method for preparing efficient catalysts for CNF-based composites through carbon erosion of Ni-Cu alloys. The effects of mechanochemical alloying duration on the phase composition of Ni-Cu samples were studied, and it was found that a Ni-based solid solution is formed during heating, reduction, and exposure to the reaction mixture. The composition of the catalytic particles remained unchanged during the carbon erosion process.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Ksenia A. Nadeina, Sergey V. Budukva, Yuliya V. Vatutina, Polina P. Mukhacheva, Evgeniy Yu. Gerasimov, Vera P. Pakharukova, Igor P. Prosvirin, Tatyana V. Larina, Oleg V. Klimov, Aleksandr S. Noskov, Victor V. Atuchin
Summary: Among the known synthesis procedures and reagents for unsupported Ni-Mo-W catalysts, there is no consensus about optimal preparation conditions. In this study, Ni-Mo-W precursors were prepared via three different techniques and characterized. The catalytic activity was found to be significantly higher when all active metals are available in a mixed phase. The catalyst prepared by the spray drying method showed the highest activity.
Article
Chemistry, Inorganic & Nuclear
P. A. Vanshina, V. S. Kudyakova, A. P. Tyutyunnik, E. Yu. Gerasimov, A. Yu. Suntsov, V. L. Kozhevnikov
Summary: The structure, oxygen non-stoichiometry, defect equilibrium, and thermodynamic properties of perovskite-type Pr0.5Ba0.25Sr0.25MnO3-& delta; were studied. The compound can be synthesized in one step at 1450 degrees C and has a tetragonal structure due to the regular tilts of MnO6 octahedra. The stability and equilibrium of defects in Pr0.5Ba0.25Sr0.25MnO3-& delta; involve oxygen exchange, intrinsic electron excitation, and oxygen disordering reactions.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Applied
Ivan V. Shamanaev, Evgenia N. Vlasova, Anastasia M. Scherbakova, Vera P. Pakharukova, Evgeny Y. Gerasimov, Ilya V. Yakovlev, Alexey Yu Fedorov, Galina A. Bukhtiyarova
Summary: Zeolite materials were used to prepare modified Al2O3 supports, which were then impregnated with Ni and P precursors to form Ni-phosphide catalysts. The catalysts were characterized and tested in the hydroconversion of methyl palmitate. Ni2P/Al2O3-SAPO-11 catalysts showed higher yield of iso-alkanes compared to Ni2P/Al2O3-ZSM-5 catalysts. The temperature did not significantly affect the yield of iso-alkanes over Ni2P/Al2O3-ZSM-5 catalysts.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Nikolai S. Nesterov, Vera P. Pakharukova, Alexey A. Philippov, Igor P. Prosvirin, Anton S. Shalygin, Oleg N. Martyanov
Summary: The influence of reaction medium on the surface structure and properties of a Ni-based catalyst used in the reductive transformations of aromatic substrates has been studied. It was found that the conversion of certain substrates caused changes in the catalyst surface structure, while others did not. Additionally, after indole conversion, the catalyst surface remained enriched with nitrogen-containing compounds.
Article
Nanoscience & Nanotechnology
Dmitri A. Bulushev, Fedor S. Golub, Svetlana V. Trubina, Valentina V. Zvereva, Evgeny Y. Gerasimov, Igor P. Prosvirin, Miriam Navlani-Garcia, Himanshu Sekhar Jena
Summary: Covalent triazine frameworks (CTF) have been used as supports for metal catalysts, and the nature of the CTF support can influence the catalytic properties. In this study, Pd catalysts supported on hatnCTF and acacCTF were compared with a Pd/g-C3N4 catalyst for formic acid decomposition. The Pd/hatnCTF catalyst showed significantly higher activity, attributed to single-atom Pd2+-C1N3 sites as the main active species.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
E. A. Avdeenko, K. A. Nadeina, O. V. Klimov, T. V. Larina, E. Yu. Gerasimov, I. S. Golubev, A. S. Noskov
Summary: The influence of different alumina precursors (pseudoboehmites) on the catalytic activity of CoMo/ASA + Al2O3 catalysts in FCC gasoline hydrotreating has been studied. The choice of pseudoboehmite significantly affects the properties of the supports and catalysts, including texture, acidity, mechanical properties, and dispersion of the active phase. The type of pseudoboehmite also affects the amount of tetrahedral cobalt in the catalysts, thereby influencing the surface activity. Additionally, a linear relationship is found between the ratio of medium and weak acid sites and catalyst selectivity.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Marat R. Agliullin, Sergei S. Arzumanov, Evgeny Yu. Gerasimov, Nellya G. Grigorieva, Vera R. Bikbaeva, Dmitry V. Serebrennikov, Leonard M. Khalilov, Boris I. Kutepov
Summary: Using multiple techniques including XRD, Al-27 and P-31 MAS NMR, Raman spectroscopy, SEM, TEM, N-2 adsorption-desorption, and IR spectroscopy, the influence of aluminum source and gel aging temperature on the properties of intermediate phases and subsequent crystallization products in SAPO-11 molecular sieves was studied. It was found that by manipulating the aluminum source and gel aging temperature, various intermediate silicoaluminophosphates can be synthesized, and the morphology and size of the resulting crystals in the SAPO-11 molecular sieves can be controlled. The synthesized SAPO-11 nanoscale sample exhibited high stability and selectivity in the vapor-phase isomerization reaction of cyclohexanone oxime to caprolactam.
Article
Chemistry, Applied
Qingyuan Zheng, Jack H. Williams, Scott Elgersma, Mick D. Mantle, Andrew J. Sederman, G. Leendert Bezemer, Constant M. Guedon, Lynn F. Gladden
Summary: In this study, a pilot-scale fixed-bed reactor compatible with NMR/MRI was developed for Fischer-Tropsch synthesis. Multiple magnetic resonance techniques were applied to quantitatively characterize different product species within catalyst pellets, providing valuable information for catalyst and reactor optimization.
Article
Chemistry, Applied
Lisa Ramisch, Sebastian Pfaff, Sabrina M. Gericke, Edvin Lundgren, Johan Zetterberg
Summary: We present a combination of optical operando techniques that allow simultaneous measurement of adsorbed species on catalyst surfaces, monitoring of surface oxide formation, and imaging of the gas phase above the catalyst surface. The experimental setup was validated by studying CO oxidation on Pd(100) at different pressures, revealing the effects of pressure on the heterogeneous catalytic reaction.
Article
Chemistry, Applied
Marta Paniagua, Gabriel Morales, Juan A. Melero, Daniel Garcia-Salgado
Summary: The influence of common impurities in levulinic acid on the catalytic performance of different acid catalysts for bio-jet fuel production was studied. It was found that furfural had the greatest detrimental effect on catalyst performance, while propyl-sulfonic acid-modified SBA-15 and sulfonic acid resin Amberlyst-70 showed good regeneration ability.
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Guillermo Calleja, Gisela Orcajo
Summary: This study presents a new MOF material, Zn-URJC-13, with acid and basic sites, permanent porosity, and high affinity to CO2 molecules. The Zn-URJC-13 catalyst exhibits efficient performance in CO2 cycloaddition reactions and can be reused multiple times.
Article
Chemistry, Applied
Dan Zhao, Vita A. Kondratenko, Dmitry E. Doronkin, Shanlei Han, Jan-Dierk Grunwaldt, Uwe Rodemerck, David Linke, Evgenii V. Kondratenko
Summary: This study demonstrates the potential of cheap and commercially available Zr or Ti-based supports and ZnO to serve as active and selective catalysts for propane dehydrogenation (PDH). The catalytically active species formed in situ under PDH conditions consist of isolated ZnOx. ZnOx on the surface of LaZrOx shows the highest rate of propene formation.
Article
Chemistry, Applied
Hanbyeol Kim, Jung Rae Kim, Young-Kwon Park, Jeong-Myeong Ha, Jungho Jae
Summary: In this study, metal phosphates were used as catalysts for biomass conversion to produce sustainable aromatics through DielsAlder cycloaddition reactions. The effects of synthesis method, activation method, and P/Ti molar ratio on the structure and acid properties of titanium phosphate catalysts were systematically studied. The mesoporous titanium phosphate catalyst synthesized by hydrothermal method at 180℃ for 12 h followed by ethanol refluxing at 60℃ for 24 h at a molar P/Ti ratio of 1 showed the highest surface area and acid site density.
Article
Chemistry, Applied
Yasin Khani, Sumin Pyo, Kwang-Eun Jeong, Chul-Ung Kim, Moonis Ali Khan, Byong-Hun Jeon, Kun-Yi Andrew Lin, Siyoung Q. Choi, Young-Kwon Park
Summary: A protonated form of Zeolite Socony Mobil-5 (H-ZSM-5) catalyst was synthesized through a hydrothermal method using different sources of silica. The effect of loading the catalyst with yttrium, samarium, and gadolinium on the acidic properties was investigated. Among the metal-loaded catalysts, the Sm/LHZ catalyst showed the best performance in the methanol to propylene conversion due to its high amount of weak and intermediate acid sites, while the Gd-LHZ catalyst increased the selectivity towards ethane and propane.
Article
Chemistry, Applied
Michael Franc, Ivana Cisarova, Jan Vesely
Summary: The present study investigates an enantioselective cyclization of enals with imidazolone derivatives catalyzed by a combination of achiral Pd(0) complex and chiral secondary amine. Corresponding spirocyclic imidazolones were produced in high yields with moderate diastereoselectivity and excellent enantioselectivity. The developed co-operative catalytic methodology provides a highly substituted spirocyclic scaffold with four stereogenic centers under mild conditions.
Article
Chemistry, Applied
Mauro Alvarez, Jennifer Cueto, David P. Serrano, Pablo Marin, Salvador Ordonez
Summary: This study focuses on improving the formulation and preparation methods of catalysts for the production of dimethyl carbonate. By using suitable catalyst preparation methods and copper salt precursors, the researchers successfully produced catalysts with optimal performance for dimethyl carbonate formation.
Article
Chemistry, Applied
Claudia J. Keijzer, Luc C. J. Smulders, Dennie Wezendonk, Jan Willem de Rijk, Petra E. de Jongh
Summary: This study investigates the catalytic behavior of alpha-alumina supported silver catalysts in the presence of chloride. It is found that the particle size of silver can affect the selectivity of the catalyst, but different strategies lead to different results. In this size range, the selectivity of ethylene oxide is correlated to the Ag : Al2O3 surface ratio.
Article
Chemistry, Applied
Takeshi Aihara, Wataru Aoki, Michikazu Hara, Keigo Kamata
Summary: The development of acid-base bifunctional catalysts is important for promoting specific chemical transformations. In this study, Ti-based perovskite oxides were synthesized and used as catalysts for two C-C bond-forming reactions (cyanosilylation and Knoevenagel condensation). The highly pure SrTiO3 nanoparticles with a high specific surface area exhibited the highest catalytic performance, and could be easily recovered and reused.
Article
Chemistry, Applied
Olga Gorlova, Petra Pribylova, Eliska Vyskocilova, Katerina Peroutkova, Jan Kohout, Iva Paterova
Summary: This study investigates the Baeyer-Villiger oxidation of beta-cyclocitral using tin-modified mixed oxides as catalysts. The optimal reaction conditions and the effects of various factors on the reaction course and selectivity were determined. The results show that tin-modified mixed oxides exhibit high activity and selectivity in the oxidation reaction.
Article
Chemistry, Applied
M. I. Avila, M. M. Alonso-Doncel, L. Briones, G. Gomez-Pozuelo, J. M. Escola, D. P. Serrano, A. Peral, J. A. Botas
Summary: The catalytic fast pyrolysis of lignin using ion-exchanged zeolite catalysts showed significant improvements in bio-oil quality and the production of aromatic hydrocarbons and oxygenated compounds.
Article
Chemistry, Applied
Enrico Catizzone, Giorgia Ferrarelli, Paolo Bruno, Girolamo Giordano, Massimo Migliori
Summary: The acid-catalysed alcohol conversion reaction is a promising route for de-fossilization strategies. Research on pure alcohol conversion and simultaneous dehydration of mixed alcohols have shown different product compositions, with the type and distribution of acid sites affecting the reaction mechanism.
Article
Chemistry, Applied
Alireza Ranjbari, Juho Kim, Jihee Yu, Jiyun Kim, Mireu Park, Nayoung Kim, Kristof Demeestere, Philippe M. Heynderickx
Summary: This study investigated a novel kinetic model for the adsorption and photocatalytic degradation of methyl orange using commercial ZnO and reduced ZnO photocatalysts. The results provided new insights into the interaction of catalysts with molecules of different charges and compared with a previous study on methylene blue. The presence of oxygen vacancies in ZnO and their effects on adsorption and photocatalytic degradation were analyzed, and the photocatalytic degradation rate of reduced ZnO was found to increase significantly.
