Results 61 to 70 of about 78,709,257 (187)

Experimental methods in chemical engineering: Temperature‐programmed desorption—TPD

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed desorption (TPD) characterizes the surface active sites of functional materials, such as adsorbents (metal hydrides, porous carbons, zeolites, metal–organic frameworks, for example) and catalysts. Solids surfaces are pre‐treated to remove moisture, contaminants, and previously adsorbed species, then a probe molecule (NH3$
Daniel A. Valdivieso‐Vera, Gregory S. Patience, M. Olga Guerrero‐Pérez   +2 more
wiley   +1 more source

Synthesis of fly ash-based zeolite and experimentation in catalytic converter for NOx reduction on diesel engines: a comparative study

Scientific Reports
This study presents the synthesis of low-cost ZSM-5 zeolite-like materials from hazardous coal fly ash and their application as metal-doped catalysts for nitrogen oxides (NOx) reduction in diesel engine exhaust.
P. Rajakrishnamoorthy, M. Bakkiyaraj, Robert Cep, B. Swarna   +3 more
doaj   +1 more source

Novel Zwitterionic Polydopamine Nanofiller‐Reinforced Hybrid Membranes With Superior Antifouling Performance for Wastewater Treatment

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reports one‐pot synthesized novel zwitterionic polydopamine‐silica (ZSiPDA) nanofillers for fabricating PES hybrid ultrafiltration membranes with enhanced hydrophilicity, permeability, and antifouling performance. The optimized membrane achieved over 91% humic acid removal and showed strong potential for municipal wastewater treatment.
Roqaya A. Ismail, Mahendra Kumar, Tarek Lemaoui, Inas M. AlNashef, Shadi W. Hasan, Hassan A. Arafat   +5 more
wiley   +1 more source

A Facile Strategy to Prepare Shaped ZSM-5 Catalysts with Enhanced Para-Xylene Selectivity and Stability for Toluene Methylation: The Effect of In Situ Modification by Attapulgite

Molecules, 2019
A general strategy for preparing shaped toluene methylation catalysts with enhanced para-selectivity and stability is developed by extruding ZSM-5 zeolite with attapulgite as a binder.
Yiren Wang, Yang Chang, Min Liu, Anfeng Zhang, Xinwen Guo   +4 more
doaj   +1 more source

How should etiology change the classification of the epilepsies? Report from the ILAE 2021–2025 Terminology Commission

Epilepsia, EarlyView.
Abstract The classification of the epilepsies has traditionally relied on clinical and electroencephalographic features. However, advancements in molecular genetics, neuroimaging, and our understanding of epilepsy pathophysiology necessitate a shift toward an etiology‐based approach.
Nicola Specchio, Stéphane Auvin, Francesca Bisulli, Scott Demarest, Elena Gardella, Angelina Kakooza Mwesige, Rima Nabbout, Alshimaa S. Othman, Kollencheri Puthenveettil Vinayan, Robyn Whitney, Elaine Wirrell, Hideo Yamanouchi, Ji Yeoun Yoo, Sameer M. Zuberi, J. Helen Cross, Ingrid E. Scheffer   +15 more
wiley   +1 more source

Etiology‐specific spectrum of epilepsy syndromes (ESSES): Widening the concept of etiology‐specific epilepsies—Report from the ILAE 2021–2025 Terminology Commission

Epilepsia, EarlyView.
Abstract A new type of epilepsy syndrome, an etiology‐specific epilepsy syndrome, was defined in 2022 in recognition of major advances in identifying the many genetic and acquired etiologies underlying the epilepsies. An etiology‐specific epilepsy syndrome refers to where a known etiology is associated with a distinctive epilepsy presentation ...
Ingrid E. Scheffer, Stéphane Auvin, Francesca Bisulli, Scott Demarest, Elena Gardella, Angelina Kakooza Mwesige, Rima Nabbout, Alshimaa S. Othman, Kollencheri Puthenveettil Vinayan, Robyn Whitney, Elaine Wirrell, Hideo Yamanouchi, Ji Yeoun Yoo, Sameer M. Zuberi, J. Helen Cross, Nicola Specchio   +15 more
wiley   +1 more source

Synthesis, characterisation and engineering of thin films of ZSM-5 on alumina, quartz and sand supports [PDF]

, 2005
Zeolite films supported on inert material are a novel type of catalyst that could provide interesting activity and selectivity properties. Such materials will see application in catalytic distillation as reactive packings and in novel low pressure drop ...
Msimang, Velaphi Zakhele
core   +1 more source

Essential fatty acid status and cognition in children with chronic intestinal failure

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives Children with chronic intestinal failure (CIF) are at risk of cognitive delays, but the underlying mechanisms remain unclear. Essential fatty acid deficiency (EFAD) may impair brain development. Lipid restrictions in home parenteral nutrition (HPN) used to prevent intestinal failure‐associated liver disease may increase EFAD risk ...
Xavier W. Werner, Suzanne M. C. van Zundert, Aysenur Demirok, Marc A. Benninga, Kim J. Oostrom, Merit M. Tabbers   +5 more
wiley   +1 more source

EDX analysis of ZSM-5 and Fe-ZSM-5.

, 2015
EDX analysis of ZSM-5 and Fe-ZSM-5.
Abdul Aziz Abdul Raman (718557), Anam Asghar (820208), Mushtaq Ahmad (724733), Wan Mohd Ashri Wan Daud (718558)   +3 more
core   +1 more source

Styrene and its natural analogues: accumulation and sustainable production methods

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Styrene, also known as vinyl benzene, is a colourless, highly volatile petrochemical that serves as a key monomer in the production of polystyrene and styrene‐butadiene rubber. Its industrial synthesis via the alkylation of benzene with ethylene relies on fossil fuels, requiring high temperatures and toxic catalysts that contribute to ...
Mwafaq Ibdah, Giovanni D'Ambrosio, Prasada Rao Kongala, Sureshkumar Mesara, Annalisa Serio, Bharadwaj Revuru, Antonello Paparella   +6 more
wiley   +1 more source