Article
Energy & Fuels
Fatima Jalid, Tuhin Suvra Khan, M. Ali Haider
Summary: By employing first principles theoretical analysis and microkinetic modelling, bimetallic alloy catalysts of cobalt, palladium, and copper have been designed for CO2 assisted ethane dehydrogenation reaction. Through in silico simulations, certain alloy catalysts have been identified that can maintain high ethane and CO2 conversion rates, increase ethylene yield, and reduce coke formation, making them potential candidates for experimental testing and scale-up studies.
Article
Engineering, Chemical
Jamaladin Shakeri, Mohammad Joshaghani, Hassan Hadadzadeh, Mohammad Javad Shaterzadeh
Summary: Iron and cobalt-oxide nanoparticles supported on carbon were synthesized via a co-assembly strategy, showing exceptional catalytic performance in CH4 carbonylation and Fischer-Tropsch synthesis reactions. The iron catalyst displayed high selectivity towards light olefins and alcohols with moderate CO conversion, while the cobalt catalyst exhibited high CO conversion and specific hydrocarbon selectivity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Physical
Kun Gong, Tiejun Lin, Fei Yu, Yunlei An, Xinxing Wang, Liangshu Zhong, Yuhan Sun
Summary: By investigating the size effect of CoxMn1-xO precursor, it was found that smaller precursor size promoted the formation of Co2C nanoprisms and facilitated efficient olefin production, offering a practical strategy to enhance catalytic performance for the Fischer-Tropsch to olefins reaction.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yi Ji, Pan Gao, Zhenchao Zhao, Dong Xiao, Qiao Han, Hongyu Chen, Ke Gong, Kuizhi Chen, Xiuwen Han, Xinhe Bao, Guangjin Hou
Summary: This study provides a comprehensive understanding of the mechanism of the oxide-zeolite bifunctional catalysis for direct syngas conversion. The proposed mechanism overturns the general cognition of this type of reactions and highlights the roles of CO and H2 molecules via oxygenate-based routes in dictating the final product.
Article
Chemistry, Physical
Daniele Polidoro, Alina M. Balu, Maurizio Selva, Rafael Luque, Sameh M. Osman, Tripti Chhabra
Summary: Microwave (MW) and conventional heating (CH) methods were compared for the synthesis of fuel additives from levulinic acid. Phosphomolybdic acid (PMA) and phosphotungstic acid (PTA)-containing graphitic carbon nitride (GCN) were synthesized and optimized to achieve high yields. MW significantly reduced reaction times and is a more sustainable approach for the synthesis of various fuel additives. Scale-up experiments showed that MW with optimum GCN-PMA achieved higher productivity compared to CH conditions.
SUSTAINABLE ENERGY & FUELS
(2023)
Review
Materials Science, Multidisciplinary
Chengtao Wang, Lujie Liu, Hangjie Li, Liang Wang, Feng-Shou Xiao
Summary: This review focuses on the catalytic performances in the conversion of syngas to methane, dimethyl ether, and olefins by controlling the hydrophobicity of catalysts. The chemical modification and the use of hydrophobic promoters are discussed. The concerns and challenges in this field are outlined, and the prospect of precisely regulating the wettability of catalysts is suggested.
Article
Chemistry, Physical
Xiaoyan Fu, Jianping Xiao
Summary: Experimental and computational studies have shown that a reduced ZnCr2O4 spinel is effective in converting syngas to ketene, a crucial intermediate in ethylene production. Microkinetic modeling identified the partially reduced ZnCr2O4 (111) surface as optimal for ketene production through the coupling of CH2* and CO*, despite hindrance from CH3CO* coverage and dehydrogenation challenges. A proposed global optimization algorithm may assist in ranking elementary reactions and pathways, aiding in simplifying reaction networks and enhancing catalyst design.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Junjie Su, Chang Liu, Songlin Liu, Yingchun Ye, Yujue Du, Haibo Zhou, Su Liu, Wenqian Jiao, Lin Zhang, Chuanming Wang, Yangdong Wang, Zaiku Xie
Summary: Tailoring silicoaluminophosphate zeolite structure and acid site strength can achieve high selectivity to ethylene and propylene in the direct conversion of syngas, showing potential for industrial applications. By comparing and controlling catalysts, better results can be achieved.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jie Tuo, Yaqi Fan, Yan Wang, Yudan Gong, Chengwei Zhai, Xianchen Gong, Teng Yang, Hao Xu, Jingang Jiang, Yejun Guan, Yanhang Ma, Peng Wu
Summary: Selective conversion of syngas to value-added olefins is a topic of significant research interest. The combination of the pentasil zeolite Al-IDM-1 with ZnaAlbOx oxide shows high selectivity and ratios, making it a promising catalyst for the production of propylene and butene.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Alexander I. Nikiforov, Andrey G. Popov, Evgeny A. Chesnokov, Irina I. Ivanova
Summary: The supported MoO3/Al2O3-F catalysts were synthesized and characterized. The fluorination of support leads to an increase in the strength of Lewis Acid Sites and residual bridging OH groups, which enhances the propylene metathesis reaction. The results demonstrate the importance of support acidity in the catalytic process.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Jie Zhang, Meng Wang, Zirui Gao, Xuetao Qin, Yao Xu, Zhaohua Wang, Wu Zhou, Ding Ma
Summary: The structural heterogeneity of supported metal catalysts has unique advantages in complex heterogeneous catalytic reactions. Rhodium catalysts with isolated Rh species exhibit high activity for the first step of dehydrogenation, while Rh ensemble sites are highly efficient for the successive reaction step. Only with the coexistence of both active structures can optimal reaction performance be achieved.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Varun Mohan, Biswanath Dutta, Roma Ripani, Prashant K. Jain
Summary: The research introduces a simple process for chlorination of methane at near-ambient temperatures using minimal reagents and without the need for catalysts or external energy sources. The reaction is carried out in an aqueous medium with trichloroisocyanuric acid releasing hypochlorous acid to trigger the chlorination process. The method is shown to be applicable to other alkanes but further developments are needed for practical chloromethane production.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Review
Chemistry, Physical
Carlos J. Pereira Monteiro, Maria Amparo Ferreira Faustino, Maria da Graca Pinho Morgado Silva Neves, Mario M. Quialheiro Simoes, Enrico Sanjust
Summary: Metallophthalocyanines (MPcs) are known for their chemical inertness as industrial dyes, but their rich redox chemistry has also been explored, providing a solid foundation for further studies on their potential as redox catalysts. Research in the last decades has focused on the catalytic activity of MPcs in aerobic oxidation reactions, with significant examples including the oxidation of organosulfur compounds and the functionalization of various substrates.
Article
Chemistry, Physical
Jie Ding, Qiang Liu, Run-ping Ye, Weibo Gong, Fan Zhang, Xiang He, Yulong Zhang, Qin Zhong, Morris D. Argyle, Maohong Fan
Summary: A novel family of admixed catalysts composed of Fe-Cu-K and SAPO-34 has been developed for efficient catalytic CO2 hydrogenation to lower olefins, achieving high CO2 conversion and selectivity of lower olefins. Strong interactions between metal/metal oxides and zeolites play a crucial role in promoting the performance by changing structures, reducible properties, and mass transfer mechanisms.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Zhiqiang Zhang, Haoren Yin, Guangde Yu, Shun He, Jincan Kang, Zhiming Liu, Kang Cheng, Qinghong Zhang, Ye Wang
Summary: The Na- and Zn-promoted iron catalyst efficiently converts CO2 and CO into C-2 olefins with high selectivity and space-time yield, where ZnO facilitates the reverse water-gas shift reaction, chi- Fe5C2 catalyzes CO hydrogenation, and Na+ suppresses olefin hydrogenation. The close proximity between ZnO and chi-Fe5C2 plays a key role in the conversion of CO2 to olefins.
JOURNAL OF CATALYSIS
(2021)
Article
Polymer Science
Vladimir Vinokurov, Andrei Novikov, Valentina Rodnova, Boris Anikushin, Mikhail Kotelev, Evgenii Ivanov, Yuri Lvov
Article
Chemistry, Physical
Aleksandr Glotov, Valentine Stytsenko, Maria Artemova, Michail Kotelev, Evgenii Ivanov, Pavel Gushchin, Vladimir Vinokurov
Article
Energy & Fuels
Ya Porfir'ev, P. S. Popov, V. A. Zaichenko, S. A. Shuvalov, M. S. Kotelev, D. S. Kolyber'skii, B. P. Tonkonogov
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2019)
Article
Energy & Fuels
M. S. Vlaskin, A. Grigorenko, M. S. Kotelev, D. S. Kopitsyn, K. M. Mazurova, E. Ivanov
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2019)
Article
Biochemistry & Molecular Biology
Anna Stavitskaya, Kristina Mazurova, Mikhail Kotelev, Oleg Eliseev, Pavel Gushchin, Aleksandr Glotov, Ruslan Kazantsev, Vladimir Vinokurov, Yuri Lvov
Article
Chemistry, Multidisciplinary
Yuri Em, Andrey Stoporev, Anton Semenov, Aleksandr Glotov, Ekaterina Smirnova, Galina Villevald, Vladimir Vinokurov, Andrey Manakov, Yuri Lvov
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Physical
Aleksandr Glotov, Anna Vutolkina, Maria Artemova, Nataliya Demikhova, Ekaterina Smirnova, Ekaterina Roldugina, Anna Stavitskaya, Evgenii Ivanov, Sergey Egazar'yants, Vladimir Vinokurov
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Chemistry, Organic
D. A. Shavaleev, M. L. Pavlov, R. A. Basimova, A. A. Sadovnikov, V. V. Sudin, E. M. Smirnova, N. R. Demikhova, Yu. V. Grigor'ev, A. L. Maksimov, E. R. Naranov
PETROLEUM CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
V. N. Borshch, E. Pugacheva, S. Ya Zhuk, E. M. Smirnova, N. R. Demikhova, V. A. Vinokurov
RUSSIAN CHEMICAL BULLETIN
(2020)
Article
Chemistry, Organic
E. M. Smirnova, D. P. Melnikov, N. R. Demikhova, M. I. Rubtsova, S. S. Boev, E. E. Brindukova, A. P. Glotov, V. A. Vinokurov
Summary: By investigating the properties and conditions of the methanol conversion catalyst, it was found that the catalyst based on halloysite aluminosilicate nanotubes exhibited high selectivity in the formation of lower olefins and aromatic hydrocarbons.
PETROLEUM CHEMISTRY
(2021)
Article
Chemistry, Applied
Maria Rubtsova, Ekaterina Smirnova, Sevastyan Boev, Michail Kotelev, Kirill Cherednichenko, Vladimir Vinokurov, Yuri Lvov, Aleksandr Glotov
Summary: A nanoarchitectural approach using natural Al2O3·2SiO2 nanotubes as templates has been developed for the synthesis of highly crystalline zeolites. By adjusting the Si/Al ratio and changing the organic templates of halloysite, the crystalline structure and morphology of the obtained materials can be controlled.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alexey Pechenkin, Dmitry Potemkin, Sukhe Badmaev, Ekaterina Smirnova, Kirill Cherednichenko, Vladimir Vinokurov, Aleksandr Glotov
Summary: By optimizing the loading of In2O3 catalyst and surface modification, the catalytic performance for CO2 hydrogenation to DME was effectively improved. The best catalyst, In2O3/Al-MCM-41/HNT, showed high production rate and selectivity under high temperature and pressure conditions, as well as good stability for at least 40 hours of operation.
GREEN PROCESSING AND SYNTHESIS
(2021)
Article
Energy & Fuels
M. S. Kotelev, S. N. Babaev, M. S. Vlaskin, K. M. Mazurova, D. A. Petrova, E. V. Ivanov
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2020)
Article
Energy & Fuels
M. I. Afokin, E. M. Smirnova, A. V. Starozhitskaya, P. A. Gushchin, A. P. Glotov, A. L. Maksimov
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2020)
