Article
Engineering, Chemical
Ioannis Nikolopoulos, George Kogkos, Chrysanthi Andriopoulou, Eleana Kordouli, Vassileios Dracopoulos, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis
Summary: Cobalt-alumina catalysts with high cobalt loading were synthesized, and the most efficient catalyst for green diesel production was found to contain 55 wt% cobalt activated at 500 degrees C. The catalysts exhibited lower performance in the deoxygenation of waste cooking oil compared to sunflower oil, likely due to deactivation caused by coking and pore blockage.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yanchun Shi, Chen Gao, Enhui Xing, Jimei Zhang, Feng Duan, He Zhao, Yongbing Xie
Summary: In this study, Meso-Ni@HZSM-5 bi-functional catalysts were successfully post-encapsulated with Ni nanoparticles, which showed significantly efficient conversion activity and selectivity in the conversion of palmitic acid, as well as excellent stability during recycling application compared to the impregnated Ni/HZSM-5 catalyst.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Environmental
Huarui Wang, Shen-ao Wang, Longhui Guo, Congzhen Qiao, Yajie Tian
Summary: By using hierarchical nanosponge ZSM-5 supporting Ni catalyst, the effect of volumes and substituents on phenolics is explored. The Ni/NPZ catalyst with hierarchical pores and highly dispersed metal species shows enhanced adsorption of phenolics and adsorption/transfer of hydrogen, resulting in higher catalytic activity than the reference micropores catalyst Ni/CZ. Phenolics with large volumes such as 4-propylphenol exhibit lower conversion rates than phenol and anisole through sequenced hydrogenation and deoxygenation procedures. Deoxygenation occurs first on guaiacol and 2,6-dimethoxyphenol due to steric resistance, followed by hydrogenation of aromatic rings. Interestingly, the scission of C-C bonds occurs at 2,6-ditertbutylphenol by electron transfer between tertbutyl and aromatic ring, improving their initial conversion.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Mahashanon Arumugam, Ka-Lun Wong, Arjun Nadarajan, Sin Yuan Lai, Chee Keong Goh, Sugeng Triwahyono, Yun Hin Taufiq-Yap
Summary: Micellization of zeolite precursor seeds with surface passivating organosilane groups is an effective technique to reduce crystallite aggregation and produce hierarchically porous materials with additional mesopores. By changing the synthesis environment of the surface passivation process, the average particle size and pore architecture of the zeolite can be altered. Using low hazard organic solvents with different hydrophobicities as a matrix for surface organosilanization and crystallization processes has shown promising results in this study.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hue-Tong Vu, Iztok Arcon, Danilo Oliveira de Souza, Simone Pollastri, Goran Drazic, Janez Volavsek, Gregor Mali, Natasa Zabukovec Logar, Natasa Novak Tusar
Summary: Catalyst design is crucial for improving catalytic activity and product selectivity. This study presents a systematic structural study of Ni in the Ni/ZSM-5 materials, revealing the changes in the local environment of Ni species induced by the different Al contents of the parent ZSM-5. The results show that the number of highly reducible and active NiO crystals is strongly correlated with the framework Al sites present in ZSM-5 zeolites, which is beneficial for further investigation of the catalytic activities of Ni/ZSM-5 and other metal-modified bifunctional catalysts.
NANOSCALE ADVANCES
(2022)
Article
Agricultural Engineering
Jinlei Chen, Yongfeng Zhu, Wenbin Li, Fenqiang Luo, Shuirong Li, Xingyong Li, Yuanbo Huang, Aihua Zhang, Zhihong Xiao, Dechao Wang, Zhifeng Zheng
Summary: Hydrodeoxygenation of lipids is studied with NiO/TS-1 and Ni/TS-1 catalysts for the production of diesel-like hydrocarbons. The catalytic performance is affected by the valence of the active component Ni, with Ni/TS-1 showing better performance in terms of palmitic acid conversion and alkanes selectivity. Under optimal conditions, Ni/TS-1 achieved 100% palmitic acid conversion and 91.6% pentadecane selectivity.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Firda Tirta Yani, Husni Husin, Darmadi, Syaifullah Muhammad, Faisal Abnisa, Nurhazanah, Fahrizal Nasution, Erdiwansyah
Summary: In this study, the effect of pH and calcination temperature on the preparation of NiO/NbOPO4 catalyst for hydrodeoxygenation of palm oil into green diesel was investigated. The results showed that the catalyst prepared at pH 8 and calcination temperature of 800℃ was the most effective in removing oxygen content from palm oil and producing high yield of green diesel.
JOURNAL OF CLEANER PRODUCTION
(2022)
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
Chemistry, Applied
Xuemin Li, Tao Pan, Jungkyu Choi, Heon Park, Zhijie Wu, Alex C. K. Yip
Summary: In this study, TON- and MFI-type zeolites with 10-membered rings were synthesized using ionic liquid-templating method. Their catalytic performances in propene dimerization were investigated. Despite different Si/Al ratios, the TON- and MFI-type zeolites showed comparable propene dimerization turnover rates due to their similar acid site strength. The different channel structures and acid properties of zeolite were responsible for the variation in catalytic selectivity between TON- and MFI-type zeolites.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Energy & Fuels
Min Lin, Xi Zhang, Lulu Zhan, Xiaoxian Li, Xianliang Song, Yulong Wu
Summary: An amorphous Co-based catalyst with porous structure and large specific surface area was synthesized and its performance in deoxygenation reaction was investigated. The results showed that the amorphous Co catalyst exhibited a better inhibition of hydrocracking and promoted hydrodeoxygenation selectivity compared to other catalysts. However, the balance between excessive and insufficient hydrogenation was crucial.
Article
Engineering, Environmental
Xu Liu, Mei Yang, Zihao Deng, Anish Dasgupta, Yang Guo
Summary: This study investigates the mechanism and kinetics of catalytic hydrodeoxygenation of palmitic acid under hydrothermal conditions, revealing that 1-hexadecanol acts as a decarboxylation inhibitor with high adsorption equilibrium constants on the catalyst. Decarboxylation is identified as the main deoxygenation pathway despite the presence of in-situ H-2.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Pingping Chen, Xiaohui Wang, Rui Yu, Yu Gu, Yuchao Lyu, Yupeng Tian, Jianye Fu, Xinmei Liu
Summary: The dispersion of Mo is crucial for the performance of Mo/ZSM-5 catalyst in methane dehydroaromatization reaction. The introduction of citric acid during the catalyst preparation improves the Mo dispersion and enhances its activity and selectivity. The chelation between citric acid and Mo species leads to the isolation of active components during calcination, resulting in improved Mo dispersion.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Energy & Fuels
Xiaoxian Li, Min Lin, Rui Li, Qiang Lu, Mingde Yang, Yulong Wu
Summary: In this study, Ni-based ZSM-22 catalysts were successfully prepared by combining ethanol dispersion with rotary evaporation. The catalyst, denoted as Ni/Z22@E, exhibited improved catalytic activity in palmitic acid deoxygenation compared to the wet-impregnated method. The conversion of palmitic acid reached 98.9%, with a high C16/C15 alkane ratio of 4.07. The stability of the Ni species on the catalyst surface prevented deactivation due to coking or leaching. The mechanism and kinetics of the reaction were analyzed, showing that the ethanol dehydration reaction was the most difficult to occur. The high selectivity for C16 alkanes was attributed to the low activation energy of the hydrodeoxygenation pathway. Additionally, a mechanistic change in the fatty acid deoxygenation reaction was observed at around 240 degrees C, leading to a significant increase in the hydrodecarboxylation pathway.
Article
Energy & Fuels
Qi Wang, Xingyong Li, Jinyi Duan, Jinlei Chen, Yueyuan Ye, Dechao Wang, Shuirong Li, Zhifeng Zheng
Summary: This study successfully improved the selectivity and yield of the hydrodeoxygenation reaction of palmitic acid by modifying the composition and structure of the catalyst.
Article
Chemistry, Physical
K. S. Shinkevich, R. G. Kukushkin, O. A. Bulavchenko, O. O. Zaikina, M. V. Alekseeva, P. S. Ruvinskiy, V. A. Yakovlev
Summary: The effects of different supports and modifiers on the performance of catalysts for hydroprocessing of fatty acids were investigated, and it was found that the ZSM-5 supported catalytic system had the highest conversion rate. Leaching of active components from the surface of all catalysts was observed, and modification with molybdenum did not improve their stability.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Applied
Petr M. Yeletsky, Yury V. Dubinin, Nikolay A. Yazykov, Roman B. Tabakaev, Konstantin A. Okotrub, Vadim A. Yakovlev
Summary: The study investigated the development of porosity in porous carbons from vegetable biomass through the leaching of mineral phases from the carbonized feedstock. The research found that the method of removing mineral template phases via acid leaching can result in porous carbons with high porosity, with biomass feedstocks showing more effective porosity development.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
K. S. Shinkevich, R. G. Kukushkin, O. A. Bulavchenko, O. O. Zaikina, M. V. Alekseeva, P. S. Ruvinskiy, V. A. Yakovlev
Summary: The effects of different supports and modifiers on the performance of catalysts for hydroprocessing of fatty acids were investigated, and it was found that the ZSM-5 supported catalytic system had the highest conversion rate. Leaching of active components from the surface of all catalysts was observed, and modification with molybdenum did not improve their stability.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Biotechnology & Applied Microbiology
Thuy-Vi Vo, Thi-Huyen Truong, Bing-Hung Chen
Summary: The use of surfactants can enhance the extraction of tea tree oil, improving both the yield and rate of extraction. The response surface methodology (RSM) is a useful tool for determining the optimal extraction parameters for tea tree oil.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Energy & Fuels
Wei-Ze Hung, Zhi Xuan Law, De-Hao Tsai, Bing-Hung Chen, Chao-Huang Chen, Hsi-Yen Hsu, Yung-Tin Pan
Summary: This study investigates the chemical-looped reverse water-gas shift reaction using transition metal/metal oxides as oxygen carriers, and identifies iron as the most promising one for CO2 splitting. By using an iron-based oxygen carrier, the chemical looping method achieves high selectivity and low cost due to the separation of CO2 splitting and H2 oxidation reactions. The study demonstrates the potential of a scalable and economically viable route for CO2 conversion compatible with current industrial processes.
MRS ENERGY & SUSTAINABILITY
(2022)
Article
Engineering, Chemical
Vladimir S. Derevschikov, Roman G. Kukushkin, Dmitry A. Yatsenko, Dmitriy I. Potemkin, Pavel S. Ruvinskiy, Ksenia S. Shinkevich, Tatiana S. Glazneva, Vadim A. Yakovlev
Summary: This study reports on the fine-tuning of yttrium oxide composition as a support for carbon dioxide methanation (CME) catalyst. The impact of synthetic parameters on the properties of Y2O3 supports was examined using various analytical techniques. A series of Ni/Y2O3 catalytic systems were prepared and evaluated, showing higher specific activity compared to a commercial Ni-based benchmark.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Sergey A. Stepanenko, Danil M. Shivtsov, Anton P. Koskin, Igor P. Koskin, Roman G. Kukushkin, Petr M. Yeletsky, Vadim A. Yakovlev
Summary: This study focuses on the development of liquid organic hydrogen carriers (LOHC) based on N-heterocyclic compounds. The advantage of these LOHC-substrates is their low hydrogen extraction temperature and high purity of hydrogen gas. Among the studied heterocyclic compounds, 8HMI showed the highest reactivity and hydrogen storage performance in the presence of a palladium catalyst.
Article
Chemistry, Physical
Yen-Liang Chu, Yu-Chieh Huang, Yu-Chao Tseng, Chia-Chi Chang, Hsisheng Teng, Bing -Hung Chen, Jeng-Shiung Jan
Summary: In order to pursue sustainable developments, this study investigates the application of poly(N-vinylformamide) (PNVF) as a green, bio-derived and water-soluble binder for Li4Ti5O12 (LTO) anode in lithium-ion batteries (LIBs). The electrochemical performance differences between PNVF electrodes and conventional polyvinylidene fluoride (PVDF) electrodes are presented. The results demonstrate that the electrode with 3 wt% PNVF shows higher peeling force and better cycle performance compared to the one with 10 wt% PVDF. Additionally, the optimal PNVF electrode exhibits lower electrochemical impedance and higher lithium-ion diffusion coefficient.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Maxim D. Mikhnenko, Svetlana V. Cherepanova, Evgeny Yu Gerasimov, Alena A. Pochtar, Maria V. Alekseeva (Bykova), Roman G. Kukushkin, Vadim A. Yakovlev, Olga A. Bulavchenko
Summary: The structural features of NiO-SiO2 nanocrystalline catalyst synthesized by sol-gel method were investigated. XRD, TEM, and DD were used to study the structure. XRD simulations based on conventional Rietveld analysis and statistical models of 1D disordered crystals were conducted to extract structural information. The results showed the presence of two NiO-like oxides with different lattice constants and different average sizes in NiO-SiO2 catalyst.
Article
Chemistry, Analytical
Yu-Chieh Huang, Yen-Liang Chu, Chia -Chi Chang, Li-Yun Liu, Hsisheng Teng, Bing -Hung Chen, Jeng-Shiung Jan
Summary: In this study, a novel polymer electrolyte was developed by immobilizing deep eutectic solvent (DES) in a poly(butyl acrylate-co-acrylonitrile) matrix cross-linked with 1,6-hexanediol diacrylate (HDDA), and introducing aluminum oxide (Al2O3) filler. The modified electrolyte exhibited higher conductivity of 6.8 x 10-4 S cm-1 and improved electrochemical stability up to 4.6 V, compared to DES alone. The Li//CPE5// LFP cell assembled with the modified electrolyte showed a discharge capacity of 155 mAh/g with 95.3% retention after 400 cycles at 0.2C rate at room temperature, indicating the significantly improved battery performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Thuy-Vi Vo, Bing-Hung Chen
Summary: The purpose of this study was to develop a colloidal formulation of tea tree oil using a sustainable and biocompatible surfactant. The researchers established a phase diagram and conducted various tests to determine the rheological properties and stability of the formulation. The results showed that the formulation exhibited gel-like behavior and remained stable for over a month.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Multidisciplinary
S. G. Zavarukhin, Yu. V. Dubinin, N. A. Yazykov, V. A. Yakovlev
Summary: This paper proposes a method for estimating the heat of combustion of sewage sludge under the condition of lack of air, based on the modification of the Mendeleev formula and the calculation of chemical equilibrium in an initial mixture. The equilibrium composition of the mixture can be calculated using applied programs or chemical equilibrium equations. Test calculations and comparisons show satisfactory agreement between the results obtained by both methods, indicating the feasibility of this procedure.
SOLID FUEL CHEMISTRY
(2022)
Article
Thermodynamics
S. F. Tikhov, K. R. Valeev, Yu Dubinin, N. A. Yazykov, S. Cherepanova, A. N. Salanov, V. A. Yakovlev, V. A. Sadykov
Summary: Honeycomb cermet catalysts were studied before and after stability tests in a fluidized-bed coal reactor. The decrease in catalytic activity was observed with decreasing strength. The predicted operating time of the catalyst was at least two winter seasons.
COMBUSTION EXPLOSION AND SHOCK WAVES
(2022)
Article
Chemistry, Inorganic & Nuclear
Maria Alekseeva (Bykova), Yuliya K. Gulyaeva, Olga A. Bulavchenko, Andrey A. Saraev, Anna M. Kremneva, Sergey A. Stepanenko, Anton P. Koskin, Vasily V. Kaichev, Vadim A. Yakovlev
Summary: The addition of zinc hinders the reducibility of nickel and weakens its interaction with the silica matrix, leading to the formation of solid oxide nickel-zinc solutions. Zn-modified catalysts exhibit significantly better catalytic properties in the dehydrogenation of methylcyclohexane compared to Ni-Cu counterparts. The selectivity towards toluene formation increases noticeably with a decrease in the Ni : Zn mass ratio, attributed to the promoting geometric and electronic effects from the formation of bimetallic Ni-Zn solid solutions.
DALTON TRANSACTIONS
(2022)
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.
