Results 61 to 70 of about 17,390 (287)

Synthesis and catalytic reactivity of MCM-22/ZSM-35 composites for olefin aromatization

, 2005
A series of MCM-22/ZSM-35 composites has been hydrothermally synthesized and characterized by XRD, SEM, particle size distribution analysis, N-2 adsorption and NH3-TPD techniques.
Xu, LY, 徐龙伢, Wang, QX, Niu, XL, Xie, SJ, Song, YQ, Liu, SL   +6 more
core   +1 more source

Supramolecular aromaticity

Journal of Molecular Structure, 2014
We report experimental and theoretical evidences for supramolecular aromaticity as a new concept to be widely used in researches about molecular crystals. CSD survey regarding frequently encountered resonance-assisted H-bonds (RAHBs) in formic acid, formamide, formimidamide, formic acid-formamide, and formamide-formimidamide dimers shows that ...
Karabiyik, Hande, Sevincek, Resul, Karabiyik, Hasan   +2 more
openaire   +3 more sources

Shear‐Induced Emergence of Aromatic Superlow‐Friction Interfaces in Amorphous Carbon: Triggering Chemical Impurities and Atomic‐Scale Mechanisms

Advanced Science, EarlyView.
High‐throughput quantum‐mechanical simulations reveal that amorphous carbon undergoes shear‐driven structural transformation into aromatic, graphene‐like interfaces. This mechanochemical process is governed by dopant chemistry: dopants with valency less than four promote the emergence of superlow‐friction amorphous graphene, whereas tetra‐valent ...
Takuya Kuwahara, Koki Horiguchi, Leonhard Mayrhofer, Gianpietro Moras, Michael Moseler   +4 more
wiley   +1 more source

A Fine Analysis of Zn Species Structure and Distribution in Zn/ZSM-5 Catalysts by Linear Combination Fitting Analysis of XANES Spectra

Molecules
Investigating the distribution of different Zn species on Zn-containing zeolite catalysts is crucial for identifying the active sites and establishing the relationship between the catalyst’s structure and its activity in the process of ethylene ...
Baichao Li, Jie Gao, Jiabei Shao, Rui Geng, Zhangfeng Qin, Jianguo Wang, Weibin Fan, Mei Dong   +7 more
doaj   +1 more source

Effect of Mentha x piperita L. and Mentha longifolia Flavoring on Physicochemical, Phenolic, Antioxidant, and Antimicrobial Properties of Algerian Apple Vinegar [PDF]

Research and Innovation in Food Science and Technology
This study evaluated the effect of flavoring apple vinegar with 250 mg of fresh leaves from Mentha x piperita L. (peppermint) and Mentha longifolia (long-leaf mint) in 25 mL of vinegar.
Dorea Ameur, Nouzha Heleili, Manel Merradi, Safia Belkhir   +3 more
doaj   +1 more source

Nickel‐Free Synthesis of Poly(pyrene‐4,5,9,10‐tetraone) for Sodium‐based Batteries: Insights into Electrode Architecture and Reversible Na‐ion Insertion

Advanced Energy Materials, EarlyView.
A nickel‐free and practical synthesis strategy to poly(pyrene tetraone) and its integration with a percolated CNTs/Ketjen Black network enables stable cycling and efficient energy storage in a sodium‐based batteries. This work demonstrates how controlling polymer structure and electrode architecture improves ion transport and mitigates dissolution in ...
Md. Adil, Robin Wessling, Nico Kokott, Elena Mena‐Osteritz, Benedikt Prifling, Markus Osenberg, Thomas Diemant, Volker Schmidt, Ingo Manke, Birgit Esser   +9 more
wiley   +1 more source

Dynamics of the toxicity level change of hookah mixture aerosol in the storage process

Новые технологии, 2017
As a result of the studies, dynamics of the toxicity level change of the hookah mixture aerosol in the storage process during smoking was determined.
A. G. Mirgorodskaya, I. A. Reznichenko, M. V. Shkidyuk   +2 more
doaj  

Oregano and thyme by-products of olive oil aromatization process with microwave assisted extraction as a rich source of bio-active constituents

Frontiers in Nutrition
IntroductionProcessing of Medicinal Aromatic Plants (MAPs) results in the production of a significant amount of by-products, which are not commercially exploitable.
Evanthia Dina, Antigoni Cheilari, Argyro Vontzalidou, Dimitra Karamani, Ioanna Diamanti, Panagiotis Bagatzounis, Ilias Giannenas, Katerina Grigoriadou, Nektarios Aligiannis   +8 more
doaj   +1 more source

A preclinical mouse model mimicking the ovarian cancer‐induced estrogen deficiency‐depression axis

Animal Models and Experimental Medicine, EarlyView.
A preclinical mouse model of ovarian cancer–related depression was developed by combining intraperitoneal tumor cell injection, ovariectomy, and chronic restraint stress. The model replicates key clinical features including estrogen deficiency, depressive‐like behaviors, and tumor progression, and provides a reliable tool for studying the endocrine ...
Jiamin Liu, Yafei Yang, Chunxi Liu, Danting Wen, Tingyu Zhao, Ping Xie, Jing Xiao   +6 more
wiley   +1 more source

Pd/C–H₂-Catalyzed One-Pot Aromatization–Deoxygenation of Dihydropyridinediones: A Green, Scalable Route to Alkyl Pyridines

Chemistry
Alkyl-substituted pyridines are ubiquitous structural motifs found in natural products, pharmaceuticals, agrochemicals, and functional organic materials.
Susanta Mandal, Tushar Sharma Banstola, Dhan Maya Chettri, Kimron Protim Phukan, Biswajit Gopal Roy   +4 more
doaj   +1 more source