Article
Chemistry, Physical
Jan Droenner, Peter Hausoul, Regina Palkovits, Matthias Eisenacher
Summary: This article focuses on the importance and challenges of the oxidation and cleavage steps in the production of phenol from cumene. Substituting sulfuric acid with heterogeneous catalysts is a widely explored approach to reduce energy consumption and waste production. Various types of heterogeneous catalysts have shown high yield and selectivity to phenol.
Article
Engineering, Chemical
Juncong Zou, Yan Lin, Shaohua Wu, Mengjie Wu, Chunping Yang
Summary: The developed catalyst Mo/KIT-6-Ti shows excellent oxidative desulfurization performance, achieving efficient conversion of sulfides without the need for organic solvents, demonstrating great potential for practical fuel applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jan Droenner, Karim Bijerch, Peter Hausoul, Regina Palkovits, Matthias Eisenacher
Summary: Hydroxybenzene, also known as phenol, is a crucial organic commodity chemical, and the cumene process is widely used for its production. The Hock rearrangement is a vital step in this process, and the use of high-temperature-treated Linde Type X (LTX) zeolites as catalysts in the peroxide cleavage step showed promising results, making it a potential alternative to sulfuric acid for this reaction.
Article
Chemistry, Inorganic & Nuclear
Zahra Besharati, Masoume Malmir, Majid M. Heravi
Summary: The novel natural-based Cu2O@Mont/EAS-IL catalyst efficiently synthesized benzopyranopyrimidines intermediates, showing advantages such as low usage, easy operation, recyclability, and environmental friendliness, demonstrating its potential in the above-mentioned reaction.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Shiau-Jeng Shen, An-Hung Tseng, Chtwan-Chin Shi, Bor-Yih Yu
Summary: This work proposes a rigorous process model for the industrial production of cumene hydroperoxide through cumene oxidation, covering process design, optimization, and controllability studies. By analyzing and supplementing the required physical properties and re-regressing kinetic parameters, optimal process configurations are determined and alternative control structures are proposed.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Jinzhe Cao, Jiangwei Zhang, Shengyang Tao
Summary: A laser-assisted method for preparing highly acidic monolithic acidic catalysts was developed and used to convert fructose into 5-HMF. The catalyst exhibited high efficiency and stability, demonstrating potential industrial applicability.
Article
Chemistry, Physical
Jinwen Zhou, Xiuliang Sun, Chongpin Huang, Jianwei Li, Biaohua Chen
Summary: The Ionic Liquid 1-butyl-3methyl-imidazolium bromide ([Bmim]Br) was found to be a good catalyst for the decomposition of Cumene Hydroperoxide(CHP) to a,a-Dimethylbenzyl alcohol(CA). The mechanism of [Bmim] Br-catalyzed conversion of CHP to CA has been studied using density functional theory(DFT) calculations. The DFT results showed that the Br anion of [Bmim]Br played a crucial role in the decomposition of CHP to CA. The energy barrier of [Bmim]Br-catalyzed decomposition of CHP is 21.4 kcal/mol. This research provides the feasibility of ionic liquid as catalysts for CHP decomposition to CA.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Sebastian Hock, Christof Rein, Marcus Rose
Summary: This research demonstrates the use of additive manufacturing and 3D printing to enhance the catalytic performance of catalysts through tailored designs and functionalization.
Article
Biotechnology & Applied Microbiology
Ning-Xin Chen, Ying- Chu, Bin Ni, Paula Hsu, Hin-Chung Wong
Summary: The study revealed the organic hydroperoxide reductase activity of Ohr in Vibrio parahaemolyticus, showing its effective protection against organic peroxide with similar functions as AhpC1-AhpC2. The transcription of the ohr gene depended on exogenous cumene hydroperoxide stress, and the ohrR gene repressor was effective at low concentrations of organic peroxide. Other Vibrio species may share similar functions to those revealed in this study.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Chemistry, Physical
Qiming She, Minyang Qiu, Kejin Li, Jiahui Liu, Chunhui Zhou
Summary: This study modulated the surface and structure of Na-Mt by thermal treatment, providing both acidic and basic sites for the transesterification reaction. The results showed that thermally activated Na-Mt exhibited bifunctional catalytic properties, with a basic site density of 1.38 mmol/g at 400°C calcination resulting in a glycerol conversion of 96.8% and a glycerol carbonate yield of 94.5%.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Nilankar Diyali, Meena Chettri, Subhajit Saha, Ankita Saha, Subhankar Kundu, Debasish Mondal, Debasis Dhak, Bhaskar Biswas
Summary: A water-stable and structurally-characterized copper(II) complex with an N,N-chelator and an ancillary ligand was synthesized, forming a long-range supramolecular framework. The copper catalyst exhibited excellent electrocatalytic hydrogen production activity in acidic water.
Article
Electrochemistry
Qi Chen, Jihuai Wu, Xiaobing Wang, Yuqian Yang, Yitian Du, Ziruo Li, Xinpeng Zhang, Zeyu Zhang, Weichun Pan, Weihai Sun
Summary: Cumene hydroperoxide is introduced as an accelerator for the oxidation of spiro-OMeTAD in perovskite solar cells, leading to improved carrier mobility, decreased trap-state density, and optimized energy matching with the perovskite layer. The modified device exhibits enhanced conductivity, improved interface morphology, and a higher power conversion efficiency compared to the undoped device.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Guojun Shi, Jiahe Shan, Zhenliang Zhao, Qiuting Lu, Enxian Yuan
Summary: In this study, didodecyl dimethyl ammonium bromide (DDAB) was found to have a significant promotion effect on the aerobic oxidation of cumene to cumyl hydroperoxide (CHP) at near room temperature. The promotion was attributed to the formation of reversed multilamellar vesicles (MLVs) as micro-reactors.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Environmental
Ting-Yu Li, Wei-Jing Li, Ming -Yen Wey
Summary: In this study, a series of CeMn-supported montmorillonite (MMT) catalysts were synthesized through a cation exchange reaction. The Mn(C)-MMT(12) showed strong electronegativity and abundant acidity, facilitating the adsorption of NH3, while the coexistence of CeO2 improved the redox ability for NO oxidation and NOX conversion under low temperature conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Hai M. Shen, Hong L. Ye, Qin Wang, Meng Y. Hu, Lei Liu, Yuan B. She
Summary: A novel and efficient protocol for the oxidation of cumene to cumene hydroperoxide was presented using metalloporphyrins and ambient O-2, achieving high selectivity and conversion rates. The protocol's main advantages include simple catalysts, solvent-free conditions, and high performance in stabilizing cumene hydroperoxide.
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
(2021)