Article
Engineering, Environmental
Zhendong Yu, Suhang Xun, Meizan Jing, Haofeng Chen, Weiyu Song, Yanhong Chao, Mohammad Rahmani, Yuxiao Ding, Mingqing Hua, Jian Liu, Wenshuai Zhu
Summary: A 3D assembly TiO2 nanoflower catalyst with controllable oxygen vacancies was developed for oxidative desulfurization (ODS) in diesel oil. The increased oxygen vacancies and Ti3+ promote the chemical adsorption and reduce the energy barriers, leading to the generation of hydroxyl radicals and superoxide radicals. The experiment showed a 100% ODS rate in only 30 minutes under optimal conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Chemistry, Applied
Biswajit Saha, Sundaramurthy Vedachalam, Ajay K. Dalai
Summary: ADS is gaining attention as a low-cost desulfurization technique for petroleum fuels, utilizing adsorbents to remove sulfur compounds. The latest developments focus on enhancing selectivity, stability, reusability, and performance improvement through the incorporation of metals. Selectivity is a key challenge in ADS, and testing with real feedstocks is crucial for commercial application.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Chemical
Shuang Qiu, Jinghua Du, Yonghou Xiao, Qidong Zhao, Gaohong He
Summary: The microwave-assisted synthesis of hierarchical porous defective HKUST-1 (DEHKUST-1) was found to enhance adsorptive desulfurization performance, making it a potential adsorbent for desulfurization from real fuels. The introduction of metal clusters and linker defects in the framework of HKUST-1 was crucial for improving the adsorption capacity and regenerability of the adsorbent.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Jiayu Li, Jun Xiong, Haoxue Huang, Mei Zhang, Wenshuai Zhu, Jun Di
Summary: The non-stoichiometric structure of tungsten oxide (W18O49) enables the formation of oxygen vacancies near low-valence W atoms, making it suitable for oxidative desulfurization. The desulfurization activity of W18O49 is enhanced by Mo doping and plasma-induced surface reconstruction, which adjust the atomic and electronic structure and increase the number of oxygen vacancies. The Mo-W18O49-P catalyst shows significantly improved oxidative desulfurization performance and can achieve deep desulfurization within 3 hours, with a better stability than pure W18O49.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Mohamed A. Habila, Zied A. ALOthman, Monerah R. ALOthman, Mohammed Salah El-Din Hassouna
Summary: In this study, carbon from palm waste was modified with an ionic liquid and evaluated for the adsorption of benzothiophene. The modified carbon showed higher adsorption capacity compared to the raw carbon. The kinetics and isotherm models indicated that the second-order kinetic model and the Freundlich model were suitable for describing the adsorption process. The prepared adsorbents showed promising results for up to five cycles of regeneration and reuse.
Article
Energy & Fuels
Liying Guo, Jinghua Du, Chengbin Li, Gaohong He, Yonghou Xiao
Summary: The bimodal micro-mesoporous HKUST-1 constructed through a mixed-linker defect strategy shows enhanced adsorptive removal capacity for benzothiophene. The hierarchical porous MOFs with micropores and mesopores exhibit higher desulfurization efficiency compared to typical HKUST-1, due to larger pore diameters and better diffusion of adsorbates. OHHKUST-1-0.2 demonstrates the best performance with a static adsorption capacity of 26.30 mg S g-1 and breakthough capacity of 0.0490 mmol g-1, even after being regenerated six times.
Article
Materials Science, Coatings & Films
I. V. Lukiyanchuk, M. S. Vasilyeva, A. Yu Ustinov, A. A. Bryzhin, I. G. Tarkhanova
Summary: The catalytic properties of Ti/TiO2/NiWO4 + WO3 composites fabricated by plasma electrolytic oxidation (PEO) of titanium in a solution containing 0.1 mol/L Na2WO4 + 0.1 mol/L CH3COOH + 0.05 mol/L Ni(CH3COO)(2) were studied in model reactions, and it was found that such composites are promising for catalytic oxidation of both S-containing and N-containing petroleum compounds. The role of nickel in increasing their activity and stability was demonstrated.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Moslem Abdollahi, Afsanehsadat Larimi, Zhi Jiang, Farhad Khorasheh, Cyrus Ghotbi
Summary: The purpose of this study was to modify the properties of TiO2 by adding carbon and copper, in order to create an active nanostructure for photocatalytic oxidative desulfurization under visible light. By investigating different parameters, the researchers identified the catalyst with the best performance and explained its advantages.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Jinghui Wu, Yue Li, Menting Jiang, Yang Huo, Xianze Wang, Xiaohong Wang
Summary: Designing green and efficient catalytic systems that can utilize molecular oxygen for deep desulfurization is highly desirable. The inverse-micellar polyoxometalate (POM) (CTA)PMo4V8 demonstrated excellent activity in removing organic sulfur from real oils with super-low sulfur content, showing high stability and reusability. The (CTA)PMo4V8 catalytic system has great potential for practical applications in the oxidative desulfurization of oil.
Article
Engineering, Environmental
Jing He, Peiwen Wu, Linlin Chen, Hongping Li, Mingqing Hua, Linjie Lu, Yongqing Wei, Yanhong Chao, ShuaiShuai Zhou, Wenshuai Zhu, Huaming Li
Summary: Ti3C2 MXene with dynamically-generated TiO2 active site shows enhanced catalytic oxidative desulfurization performance, attributed to its abundant interface engineering and loosely layered structure. The expanded slit layer in Ti3C2 MXene provides more pores and cavities for accelerated mass transfer, leading to efficient removal of sulfides in diesel. Additionally, the dynamically-generated active sites from continuous activation of molecular oxygen and Ti3C2 MXene play a key role in enhancing the catalytic activity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Yao Sun, Lan Li, Feng Ju, Hao Ling
Summary: This study examines the evolution of nickel species, especially NiSx, on NiO/ZnO-Al2O3-SiO2 and NiSO4/ZnO-Al2O3-SiO2 adsorbents for reactive adsorption desulfurization (RADS). The results show that both adsorbents have high desulfurization efficiency, but differences in activation mechanisms were observed. NiO adsorbent adsorbs and breaks the C-S bond to form NiSx, while NiSO4 adsorbent self-sulfides to NiSx.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Jing Luo, Yanchen Wei, Yanhong Chao, Chao Wang, Hongping Li, Jun Xiong, Mingqing Hua, Huaming Li, Wenshuai Zhu
Summary: The oxygen-modified hexagonal boron nitride (BN-2O), constructed through interior substitution and edge hydroxylation, exhibits significantly improved adsorption capacity compared to traditional edge hydroxylated BN (BN-OH). The increased oxygen doping at the edges of BN-2O enhances the coverage of the adsorbate, and the oxygen atoms in the BN interior structure polarize the adsorbate, resulting in a dipole interaction between the adsorbate and BN-2O. This polymer-based strategy can be extended to other heteroatom doping systems to enhance adsorption performance.
Article
Chemistry, Applied
Nushin Ettekali, Somaiyeh Allahyari, Nader Rahemi, Fahime Abedini
Summary: Micro-mesoporous SiO2 aerogel supported by MoO3 nanoparticles was used as a catalyst and adsorbent for the oxidation of dibenzothiophene (DBT), leading to enhanced catalytic activity and successful desulfurization of Iranian gasoil with noticeable reduction in sulfur-containing components. The characterization of the catalysts indicated uniform dispersion of MoO3 nanoparticles on the aerogel surface, with maintained crystalline structure despite decreased porosity in spent catalyst due to adsorption of DBT sulfones.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Energy & Fuels
Zijia Liu, Yingnan Zhang, Jiabao Bai, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang, Ying Liang, Hou Chen
Summary: This work introduces a highly efficient and durable catalyst, MoOx nanoclusters decorated on spinel-type porous metal oxide nanosheets, for aerobic oxidative desulfurization reactions. The electronic structure of the MoOx nanoclusters can be modulated by the metal oxide carriers, with Mo(V) species identified as the active center. The catalyst MoOx/CuCo2O4, with air as the oxidant source under atmospheric pressure, achieves the aerobic transformation of dibenzothiophene at 90°C with a turnover frequency of 16.2 h-1 and shows no performance attenuation or structural deformation in six successive reuses.
Article
Chemistry, Multidisciplinary
Zongwei Zhang, Keheng Wei, Chao Li, Zhenhong Deng, Feixue Chu
Summary: The study reports a simple process of catalytic adsorptive desulfurization of model jet fuel using TiO2 loaded on different mesoporous materials. TiO2/MCM-41 exhibited higher adsorption capacity and strength, better selectivity, and rapid kinetics, making it a cost-effective and efficient desulfurization adsorbent for producing clean jet fuel.
Article
Chemistry, Multidisciplinary
Jun Du, Hainan Shi, Jiaming Wu, Keyan Li, Chunshan Song, Xinwen Guo
Summary: This study presents an ingenious calcination strategy to introduce sulfur vacancies and enhance the interfacial interaction in a TiO2@ZnIn2S4 heterojunction, greatly improving the photocatalytic CO2 reduction activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Jiamin Huang, Guanghui Zhang, Mingrui Wang, Jie Zhu, Fanshu Ding, Chunshan Song, Xinwen Guo
Summary: In this study, a tandem catalyst consisting of Mn-Cu-K modified iron carbide and CuZnAlZr catalyst was reported to enhance the catalytic performance and increase the selectivity of alcohols. By using powder mixing method and a mass ratio of 1:1, a higher selectivity of alcohols was achieved.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Xiaoyu He, Xutao Gao, Xiao Chen, Shen Hu, Fangchang Tan, Yujie Xiong, Ran Long, Min Liu, Edmund C. M. Tse, Fei Wei, Hong Yang, Jungang Hou, Chunshan Song, Xinwen Guo
Summary: In this work, a new two-dimensional Fe/Ti-BPDC MOF photocatalyst with atomically dispersed Fe sites was synthesized using a dual-benefit design strategy. This catalyst exhibited excellent catalytic performance in visible-light-driven CO2 conversion to HCOOH, achieving a high yield of 703.9 μmol g-1 h-1 with a selectivity greater than 99.7%. The catalyst achieved "dual-optimization" by sustaining the supply of photogenerated electrons and effectively activating CO2. It provided a high proportion of effective photogenerated electrons through a unique electron transfer mechanism and facilitated fast CO2 activation through strong O/Fe affinity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Energy & Fuels
Pawnprapa Pitakjakpipop, Chunshan Song
Summary: This study examined the effects of different supports on the activity and selectivity of nickel phosphide catalysts in anisole hydrodeoxygenation. Ni2P/CeO2 showed the highest activity among the synthesized supports and common materials. Ni2P/TiO2-CeO2 exhibited superior reactivity and higher cyclohexane selectivity compared to Ni2P/CeO2. The choice of support also influenced the product distributions and HDO pathways. Both Ni2P/CeO2 and Ni2P/TiO2-CeO2 are promising catalysts for tunable production of benzene and cyclohexane, respectively.
Article
Energy & Fuels
Ajuan Zhou, Jiaxing Zhang, Hong Yang, Shujie Shang, Anfeng Zhang, Chunshan Song, Xinwen Guo
Summary: This study explores the rational design of Pt/ZSM-5 bifunctional catalysts for alkylating benzene with ethane. It reveals that the Si/Al ratio of ZSM-5 regulates the dispersion and particle size of Pt, and the interaction between H+ of ZSM-5 and Pt plays a crucial role in controlling the product distribution in the reaction.
Article
Chemistry, Applied
Yu Tang, Yi Cui, Gaosheng Ren, Ke Ma, Xiaoxun Ma, Chengyi Dai, Chunshan Song
Summary: In this study, copper-mordenite zeolite (Cu-MOR) and non-thermal plasma were used to efficiently convert methane and water into methanol and hydrogen at low temperature without CO2 formation. The reaction mechanism involves the excitation of methane under plasma conditions, followed by adsorption on the Cu-2-(μ-O)(2+) active sites and facilitated formation of methanol through co-adsorption of water. However, prolonged reaction time led to the reduction of Cu-2-(μ-O)(2+) and carbon deposition on the catalyst surface, causing a decrease in catalytic activity. Nevertheless, the presence of oxygen rejuvenated the catalyst and prevented carbon deposition, maintaining the catalytic activity.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xiaoyu He, Jiaming Wu, Keyan Li, Min Liu, Hainan Shi, Jun Du, Chunshan Song, Xiang Wang, Xinwen Guo
Summary: A direct Z-scheme 2D/2D heterojunction of ZnIn2S4/Ti-BPDC was synthesized, providing more exposed active sites and a shorter charge transfer distance for enhanced photocatalytic performance.
SCIENCE CHINA-MATERIALS
(2023)
Article
Multidisciplinary Sciences
Mingrui Wang, Peng Wang, Guanghui Zhang, Zening Cheng, Mengmeng Zhang, Yulong Liu, Rongtan Li, Jie Zhu, Jianyang Wang, Kai Bian, Yi Liu, Fanshu Ding, Thomas P. Senftle, Xiaowa Nie, Qiang Fu, Chunshan Song, Xinwen Guo
Summary: In this study, an in situ synthesized K-Co2C catalyst was developed for CO2 hydrogenation, achieving a selectivity of 67.3% for C2+ hydrocarbons. Experimental and theoretical results showed that CoO transformed into Co2C, and the stability of Co2C depended on the reaction atmosphere and the K promoter. The formation of surface C* species was facilitated by the co-action of K promoter and H2O, while the adsorption of C* on CoO was enhanced by the K promoter. The addition of H2O extended the lifetime of K-Co2C from 35 hours to over 200 hours.
Article
Engineering, Chemical
Kai Bian, Guanghui Zhang, Mingrui Wang, Shida Liu, Christian J. Breckner, David P. Dean, Jie Zhu, Jeffrey T. Miller, Shuandi Hou, Chunshan Song, Xinwen Guo
Summary: Optimizing the structure of Pt-based bimetallic catalysts is crucial for improving the performance of propane dehydrogenation. This study presents an effective strategy to optimize the structure of PtFe bimetallic catalysts, resulting in minimal coke formation and high turnover frequency. The optimized catalyst, 1Pt3Fe@S-1, suppresses coke formation by incorporating most of the Fe species into the framework and enhances catalytic stability and selectivity through the formation of uniform PtFe alloy nanoparticles encapsulated in zeolite channels.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
Mengmeng Zhang, Shuang Wang, Xiaowa Nie, Fanshu Ding, Chunshan Song, Xinwen Guo
Summary: Converting CO2 into chemicals and fuels is an effective solution to address CO2 emissions. This study investigated the reaction mechanism of hydrocarbons formation from CO2 hydrogenation on CHI-Fe5C2 (111) surface using DFT calculations. It was found that introducing a second transition metal could effectively tune the product selectivity.
Article
Nanoscience & Nanotechnology
Xiangyang Li, Jiaming Wu, Sufeng An, Keyan Li, Jiaxing Zhang, Mengjiao Pei, Chunshan Song, Xinwen Guo
Summary: We propose a simple bottom-up strategy for preparing crystalline polymeric carbon nitride (CCN) with ultrathin 2D nanosheet structures. CCN can efficiently remove various high-concentration organic pollutants and heavy metal ions under visible light irradiation. It also exhibits outstanding photocatalytic performance in the water-splitting reaction. The highly boosted activity of CCN is attributed to the significantly improved charge separation, increased active sites, and enhanced visible light absorption.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xiaoxing Wang, Chunshan Song
Summary: This article introduces a new design approach for adsorptive CO2 capture and separation, called molecular basket sorbents (MBS), which does not require solvent heating and water evaporation, resulting in significantly reduced energy consumption and carbon capture cost. The research shows that MBS has high CO2 adsorption capacity, selectivity, kinetics, and regenerability, outperforming traditional adsorbents.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Energy & Fuels
Jiaxing Zhang, Fei Yuan, Anfeng Zhang, Guanghui Zhang, Limin Ren, Chunshan Song, Xinwen Guo
Summary: This study developed a tandem catalyst Fe-Co/HZSM-5 for the direct conversion of CO2 into gasoline fuel. The use of HZSM-5 nanosheets with short diffusion channels and appropriate acid property improved the selectivity and yield of gasoline fuel, while preventing catalyst deactivation.
Article
Engineering, Chemical
Jie Zhu, Minchen Mu, Yi Liu, Miao Zhang, Guanghui Zhang, Zening Cheng, Ben Hang Yin, Alex C. K. Yip, Chunshan Song, Xinwen Guo
Summary: This work investigates the effect of potassium (K) promoter on the carburization and oxidation of iron-based catalysts during CO2 hydrogenation. The addition of K enhances CO2 adsorption, promotes the reaction with hydrogen, and accelerates the carburization of iron phases. In addition, K prevents the oxidation of Fe5C2 during CO2 hydrogenation. The optimized iron-based catalysts exhibit high catalytic activity for CO2 conversion to olefins and long-chain hydrocarbons.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Jiajie Wang, Xiaoxing Wang, Mohammad S. AlQahtani, Sean D. Knecht, Sven G. Bilen, Wei Chu, Chunshan Song
Summary: This study compared CO2 hydrogenation under thermal-catalytic and plasma-catalytic conditions. The results showed significant synergy between plasma and catalyst at low temperatures, leading to increased CO2 conversion. The plasma-catalytic reaction had lower activation energy and promoted CO2 activation.
CHEMICAL ENGINEERING JOURNAL
(2023)
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.
