Review
Agricultural Engineering
Ranjeet Kumar Mishra, Syeda Minnat Chistie, Sneha Ullhas Naika, Kaustubha Mohanty
Summary: This study focuses on investigating the shape selectivity, porosity, structure, and acidity of zeolites and their impact on bio-oil and chemicals production. Pore size, structure, Si/Al ratio, channel structure, and acidity are crucial parameters for aromatics production and deoxygenation reactions. Understanding the properties of zeolites is essential for enhancing the fundamental understanding of pyrolysis.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Jisong Bai, Quanwei Lv, Xin Fu, Jingyou Chen, Hong Wang, Shunhong Lin, Xiong Zhou
Summary: The catalytic pyrolysis of sewage sludge with self-derived char was investigated in this study. The results showed that char reforming improved the quality of bio-oil by increasing the aliphatic content and reducing the organic nitrogen species content. The temperature of reforming had an impact on the yields of bio-oil and gas, with the highest aliphatic content and lowest organic nitrogen species content obtained at 500 degrees C.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
Wei Luo, Jun Wan, Zhongyi Fan, Qing Hu, Nan Zhou, Mao Xia, Min Song, Zhiyong Qi, Zhi Zhou
Summary: This paper evaluates the effect of low-cost clays as catalysts on the pyrolysis products from waste tires, showing that clays can improve the quality and yield of products, with significant influence from particle size and modification conditions. ZnCl2-modified MTT can enhance aromatics content, and small molecule polymerization can increase C11-C20 content. The catalysts promote the formation of diesel fraction through alkylation reactions of benzene and naphthalene.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
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, Analytical
Huan Li, Yaohong Yu, Fan Yi, Jinglun Qiang, Chen Li, Nan Zhao, Jiaxin Lu, Zhuangzhuang Jia, Ling Zhou, Philbert Mperejekumana, Hussien Elshareef, Yuguang Zhou, Renjie Dong
Summary: This study investigates the nitrogen migration pathways and the formation of NOx precursors during biomass pyrolysis. The results provide insights into understanding and controlling NOx emissions from biomass energy utilization.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Polymer Science
Konstantin I. Dement'ev, Stanislav P. Bedenko, Yulia D. Minina, Aniya A. Mukusheva, Olga A. Alekseeva, Timur A. Palankoev
Summary: The fast catalytic pyrolysis of polystyrene in hydrocarbon medium over zeolite catalysts was investigated at temperatures of 450-550 degrees C. The study examined the influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution. The results showed high polymer conversion with ethylbenzene, benzene, and toluene as the main products. The highest yield of ethylbenzene (80%) was achieved at 550 degrees C, vapor residence time of 1-2 s, and 10% polystyrene concentration in heavy cycle oil as the medium. The influence of zeolite topology on product distribution was also explored, and a possible mechanism of polystyrene pyrolysis was proposed.
Review
Chemistry, Multidisciplinary
Yitong Zhai, Beibei Feng, Qinghui Meng, Chengcheng Ao, Siyu Qian, Lidong Zhang
Summary: This feature article discusses the catalytic combustion of methyl butanoate over unmodified HZSM-5 zeolites, focusing on the catalytic reaction mechanism. Experimental and theoretical calculations are used to explain the proposed catalytic mechanism, providing new insights into improving combustion efficiency in internal combustion engines and controlling pollutant emissions.
CHEMICAL COMMUNICATIONS
(2021)
Article
Energy & Fuels
Chao Li, Farshad Ataei, Farid Atashi, Xun Hu, Mortaza Gholizadeh
Summary: This study demonstrated that catalytic pyrolysis in the presence of zeolite can effectively convert PET waste into solid, liquid, and gaseous fuels, while adjusting the properties and compositions of the products. Zeolite influences the yields of gases and light hydrocarbons by affecting secondary and primary reactions in the process.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Shinya Kokuryo, Yasuhiro Shu, Yurika Taniguchi, Ryuji Takada, Koji Miyake, Yoshiaki Uchida, Gabriel Alemany-Molina, Emilia Morallon, Diego Cazorla-Amoros, Norikazu Nishiyama
Summary: This study focuses on the development of a new method to utilize deposited coke on zeolite catalysts and successfully synthesizes nitrogen-doped carbon catalysts. The results show that N-doped carbon synthesized using Zn2+ type ZSM-5 zeolites exhibits higher activity in the oxygen reduction reaction.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Environmental Sciences
Tewodros Kassa Dada, Md Anwarul Islam, Arun K. Vuppaladadiyam, Elsa Antunes
Summary: This study aims to synthesize hierarchical strontium loaded Y-zeolite and investigate its application in the co-pyrolysis of ironbark and plastic waste. The modified catalyst showed an increase in external surface area and total aromatic percentage, along with a decrease in acidic groups in the co-pyrolysis oil after sequential dealumination-desilication treatments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Nai-Yu Yao, Jing-Pei Cao, Jing-Ping Zhao, Zi-Meng He, Xiao-Bo Feng, Tian-Long Liu, Ze-Ying Wang, Xiao-Yan Zhao
Summary: The addition of Zn during synthesis of HZSM-5 catalysts led to higher yields and selectivity in the catalytic reforming of cellulose pyrolysis volatiles, as well as improved mass transfer and anti-coking performance.
Article
Chemistry, Multidisciplinary
Yan Cheng, Xiaojun Dai, Qiang Wei, Xiaohan Wang, Yasong Zhou
Summary: Ni-P co-modification effectively improves the acid properties of Y zeolites and the characteristics of active metals in the catalysts, thus enhancing the selectivity and product yield of the hydrocracking catalysts.
Article
Chemistry, Multidisciplinary
Dali Zhu, Linying Wang, Wenna Zhang, Dong Fan, Jinzhe Li, Wenhao Cui, Shengjun Huang, Shutao Xu, Peng Tian, Zhongmin Liu
Summary: High-silica zeolite Y plays a crucial role in (petro)chemical industries, but its slow nucleation and growth kinetics hinder direct synthesis and improvement of framework SiO2/Al2O3 ratio. In this study, a facile strategy involving high crystallization temperature, ultra-stable Y seeds, and efficient organic-structure directing agent is developed to achieve fast crystallization of high-silica zeolite Y. The synthesis can be completed in 5-16 hours at 160 degrees C, with adjustable framework SiO2/Al2O3 ratio up to 18.2, and the key factors affecting crystallization kinetics and phase purity are explained. Additionally, the fast crystal growth mechanism is revealed through monitoring the crystallization process. The high-silica products exhibit high (hydro)thermal stability and abundant strong acid sites, resulting in excellent catalytic cracking performance superior to commercial ultra-stable Y.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Francisco Ortega, Maria Angeles Martin-Lara, Hector J. Pula, Montserrat Zamorano, Monica Calero, Gabriel Blazquez
Summary: This research aims to develop a new strategy to convert wasted COVID-19 masks into useful products through chemical recycling by pyrolysis. The results showed that pyrolysis at different temperatures yielded valuable solid (biochar), liquid (biooil), and syngas products. By using a two-stage pyrolysis catalytic reactor with sepiolite as a catalyst, the final yield of syngas product increased and the composition of biooils changed. The study also examined the effect of sepiolite regeneration on consecutive pyrolysis tests.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Applied
Long Zhang, Shushu Huang, Wei Deng, Dengyao Yang, Qianxi Tang, Simin Zhu, Limin Guo
Summary: Three different MFI type zeolites were synthesized as supports, and Co3O4 supported MFI type zeolite catalysts were prepared for dichloromethane catalytic combustion. The catalysts showed better performance than pure Co3O4, with Co3O4/ZSM-5 catalyst exhibiting the best results due to its proper BrOnsted acid sites amount.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Analytical
Zsuzsanna Czegeny, Emma Jakab, Janos Bozi, Marianne Blazso
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2015)
Article
Chemistry, Multidisciplinary
Csaba Fodor, Janos Bozi, Marianne Blazso, Bela Ivan
Article
Chemistry, Analytical
Zs. Czegeny, J. Bozi, Z. Sebestyen, M. Blazso, E. Jakab, E. Barta-Rajnai, M. Forster, J. Nicol, K. G. McAdam, C. Liu
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2016)
Article
Chemistry, Analytical
M. Blazso, B. Babinszki, Zs. Czegeny, E. Barta-Rajnai, Z. Sebestyen, E. Jakab, J. Nicol, C. Liu, K. McAdam
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2018)
Article
Chemistry, Analytical
Eniko Szabo, Marton Olah, Ferenc Ronkay, Norbert Miskolczi, Marianne Blazso
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2011)
Article
Chemistry, Analytical
Janos Bozi, Marianne Blazso
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2012)
Article
Chemistry, Analytical
Zs. Czegeny, E. Jakab, M. Blazso, T. Bhaskar, Y. Sakata
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2012)
Article
Chemistry, Analytical
Janos Bozi, Magdolna R. Mihalyi, Marianne Blazso
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2013)
Article
Chemistry, Analytical
Zsuzsanna Czegeny, Emma Jakab, Marianne Blazso
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2013)
Article
Chemistry, Analytical
E. Jakab, M. Blazso, E. Barta-Rajnai, B. Babinszki, Z. Sebestyen, Zs. Czegeny, J. Nicol, P. Clayton, K. McAdam, C. Liu
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2018)
Article
Biochemical Research Methods
Marianne Blazso, Janos Bozi
JOURNAL OF CHROMATOGRAPHY A
(2013)
Article
Thermodynamics
Zoltan Sebestyen, Marianne Blazso, Emma Jakab, Norbert Miskolczi, Janos Bozi, Zsuzsanna Czegeny
Summary: The study found that various catalysts have a significant impact on the pyrolysis products of plastic waste and biomass mixtures, with a stronger influence on the plastic content. Some catalysts can promote cracking reactions and aromatization, with beta-zeolite and ZSM-5 catalysts being the most effective.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Z. Sebestyen, E. Barta-Rajnai, J. Bozi, M. Blazso, E. Jakab, N. Miskolczi, J. Soja, Zs. Czegeny
Article
Chemistry, Analytical
Marianne Blazso, Janos Bozi
CURRENT ANALYTICAL CHEMISTRY
(2011)
Article
Environmental Sciences
Adam Toth, Andras Hoffer, Mihaly Posfai, Tibor Ajtai, Zoltan Konya, Marianne Blazso, Zsuzsanna Czegeny, Gyula Kiss, Zoltan Bozoki, Andras Gelencser
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.