Results 171 to 180 of about 14,636 (294)

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Quaternary Ammonium Salts in Organocatalysis

Focus on Catalysts, 2016
openaire   +2 more sources

Quaternary ammonium salts based on (-)-borneol as effective inhibitors of influenza virus. [PDF]

Arch Virol, 2021
Sokolova AS, Yarovaya OI, Baranova DV, Galochkina AV, Shtro AA, Kireeva MV, Borisevich SS, Gatilov YV, Zarubaev VV, Zarubaev VV, Salakhutdinov NF.   +10 more
europepmc   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo, Vincenzo Patamia, Chiara Zagni, Antonio Rescifina, Giuseppe Floresta   +4 more
wiley   +1 more source

Catalytic Transformation of Triglycerides to Biodiesel with SiO₂-SO₃H and Quaternary Ammonium Salts in Toluene or DMSO. [PDF]

Molecules, 2022
Barbosa SL, Rocha ACP, Nelson DL, de Freitas MS, Mestre AAPF, Klein SI, Clososki GC, Caires FJ, Flumignan DL, Dos Santos LK, Wentz AP, Pasa VMD, Rios RDF.   +12 more
europepmc   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

EcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao, Fengming Zhou, Xinying Li, Ying Deng, Zexing Wu, Siyuan Feng, Yujing Zhu, Dan Zhang, Zhenyu Xiao   +8 more
wiley   +1 more source

Markovnikov-Selective Hydroboration of Aryl Alkenes Catalyzed by Quaternary Ammonium Salts. [PDF]

J Am Chem Soc
Huninik P, Im H, Szyling J, Baik MH, Walkowiak J.   +4 more
europepmc   +1 more source

Endocrine disrupting potency and toxicity of novel sophorolipid quaternary ammonium salts. [PDF]

Ecotoxicology, 2021
Liwarska-Bizukojc E, Stevens CV, Delbeke EIP, Van Geem KM.   +3 more
europepmc   +1 more source

Developing a Suitable Anion Exchange Layer Structure for Pure–Water Fed Bipolar Membrane CO2 Electrolysis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A porous anion exchange layer (AEL) is implemented in a forward‐biased bipolar membrane CO2 electrolyzer to suppress carbonate crossover, support CO2 regeneration and maintain cathode alkalinity. Two fabrication strategies are compared—deposition on a silver gas diffusion electrode (GDE) or on the CEM—showing that a porous AEL‐coated GDE provides the ...
Henning Lorenz, Nico Roubicek, Simon Thiele, Chuyen van Pham   +3 more
wiley   +1 more source

Cytotoxicity and Genotoxicity of Resin-Based Dental Composites Modified with Quaternary Ammonium Salts. [PDF]

J Funct Biomater
Szymczak-Pajor I, Zalega M, Nowak J, Śliwińska A, Woźniak K, Bociong K.   +5 more
europepmc   +1 more source