Article
Chemistry, Physical
S. O. Salawu, H. A. Ogunseye, MD. Shamshuddin, A. B. Disu
Summary: In this theoretical investigation, the double exothermic reaction-diffusion of couple stress fluid with optical radiation and exponential Reynold's viscosity is examined in a channel. The numerical computation reveals that thin radiation and couple stress material can improve fluid viscosity and prevent thermal explosion.
Review
Chemistry, Organic
Aslihan Ayvaz, Sinem Gorkem Demirbas, Ahmet Demirbas, Neslihan Demirbas
Summary: Due to the increasing environmental pollution and its detrimental impact on the ecosystem, scientists have developed new chemical strategies using eco-friendly chemicals, solvents, catalysts, and alternative energy sources. Deep eutectic solvents (DESs) are low-melting mixtures primarily consisting of quaternary ammonium salt and hydrogen-bond acceptors. DESs have advantages such as low toxicity, easy preparation, low cost, biodegradability, low vapor pressure, and recyclability.
CURRENT ORGANIC CHEMISTRY
(2023)
Article
Agricultural Engineering
Negin Amini, Swarit Dwivedi, Waqar Ahmad, Victoria S. Haritos, Akshat Tanksale
Summary: The experiment showed that microwave pre-treatment using 3.7 wt% formaldehyde solution is an efficient method, accelerating the heating rate of woody biomass, increasing saccharification efficiency, and producing stable lignin monomers. Compared to traditional autoclave treatment, microwave pre-treatment with formaldehyde solution released a higher sugar yield, potentially generating various basic materials for renewable products.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Multidisciplinary
Niklas Adebar, Alina Nastke, Jana Loewe, Harald Groeger
Summary: The use of segmented flow tools allows for efficient whole-cell biocatalysis in biphasic media, resulting in increased conversion rates and yields while simplifying the work-up process.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Xuan Gong, Yiru Ye, Abhishek Dutta Chowdhury
Summary: The philosophy of Ikigai, which emphasizes the reason for being, can be applied to understand the role of organic reaction intermediates in zeolite catalysis. These intermediates can either control the product selectivity or promote catalyst deactivation depending on the specific microenvironment in zeolite. The understanding of reaction intermediates and their true impact during catalysis is crucial for the development of zeolite-mediated catalytic technologies.
Article
Materials Science, Multidisciplinary
Jiaxu Zhang, Ruohan Yu, Jun Li, Huiyu Zhai, Gangjian Tan, Xinfeng Tang
Summary: A novel strategy is proposed to completely eliminate Li2CO3 from garnet electrolytes by a double replacement reaction, leading to improved electrochemical performance of the electrolyte.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Polymer Science
Kewei Ren, Yunting Tsai
Summary: Unsaturated polyester resin (UP) mixed with hardeners exhibited thermal runaway reactions, which were studied to prevent UP explosion. Results showed that a mixing proportion of 3:1 provided a safer polymerization process for UP.
Article
Chemistry, Physical
Yu Chen, Fuguang Zhang, Haiyang Sun, Yi Chang, Ziyang Zhang, Zhenghui Liu, Mingshuai Yang
Summary: A new concept of green solvents called superlong supercooling solvents (SSSs) is proposed, which are metastable liquid solvents that can be used at temperatures around or slightly higher than room temperature before condensing after a superlong time. SSSs can serve as green alternatives to water, supercritical fluids, ionic liquids, and deep eutectic solvents (DESs).
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Amirah Azzouz, Maan Hayyan
Summary: Recently, deep eutectic solvents (DESs) have attracted attention as a greener alternative to conventional volatile organic compounds and even ionic liquids. However, the evaluation of their biodegradability and environmental impact is still limited. This work highlights the research efforts to date concerning DES biodegradability and emphasizes the importance of considering their biosafety and environmental impact for large-scale application in various industries.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Chemical
Jhu-Ling Jhang, Hung-Yi Hou
Summary: Organic peroxides have various applications but pose risks of fire, explosion, and toxic chemical leakage due to potential runaway reactions. The Central Taiwan Science Park has established a chemical database and information platform to manage chemical information, while using differential scanning calorimetry to study the physical properties and thermal hazard parameters of organic peroxides.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2021)
Article
Chemistry, Multidisciplinary
Monica Nardi, Giuseppina De Luca, Paolo Novelli, Manuela Oliverio, Salvatore Romano, Antonio Procopio
Summary: In this study, a fast, cheap, and eco-friendly method for amine group protection was developed. It involves the formation of amide bonds using choline chloride as a hydrogen bond acceptor and the starting amine as a hydrogen bond donor through the generation of in situ amine-based deep eutectic solvents. This novel approach avoids the use of toxic solvents, making it a sustainable alternative to classic amine protection procedures.
Article
Chemistry, Multidisciplinary
Gabriele Lupidi, Alessandro Palmieri, Marino Petrini
Summary: Functionalized quinoxalines can be prepared with a fast and high-yielding protocol using choline chloride/water NADES at room temperature without additional activation. The products obtained do not require further purification.
Article
Engineering, Environmental
Zhen Cheng, Lei Ni, Junjie Wang, Juncheng Jiang, Hang Yao, Qiang Chen, Fusheng Cui, Wei Jiang, Shuliang Ye
Summary: In this study, the exothermic mechanism and process hazards of synthesizing Grignard reagents were investigated using calorimetry and infrared spectroscopy. It was found that using solvents such as 2-MeTHF, CPME, and DGBE can reduce the risk of the reactions, making them inherently safer options compared to traditional solvents like DE or THF.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Multidisciplinary
Suyong Han, Mahdi Ramezani, Patrick TomHon, Kameel Abdel-Latif, Robert W. Epps, Thomas Theis, Milad Abolhasani
Summary: This study explores the feasibility of utilizing and recovering green solvents with switchable hydrophilicity solvents, presenting an intensified continuous flow strategy and providing accurate in situ reaction monitoring and a scalable green solvent extraction route.
Review
Chemistry, Analytical
Alvaro Santana-Mayor, Ruth Rodriguez-Ramos, Antonio Herrera-Herrera, Barbara Socas-Rodriguez, Miguel Angel Rodriguez-Delgado
Summary: The development of sustainable chemistry has led to the emergence of new materials, with deep eutectic solvents (DESs) as a promising non-toxic alternative to toxic organic solvents, seeing a significant increase in their applications in analytical chemistry in recent years. The vast amount of information generated from studies associated with DESs needs continuous revision.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
