Results 141 to 150 of about 1,565,920 (282)

Recent Advances in Zn/ZSM‐5 Catalysts for Propane Dehydroaromatization: Active Sites, Co‐Aromatization, and Morphological Engineering

open access: yesCarbon and Hydrogen, EarlyView.
This review summarizes recent advances in Zn/ZSM‐5 catalysts for propane dehydroaromatization, focusing on active site engineering, co‐aromatization systems, morphological regulation, and machine learning‐guided development. ABSTRACT Propane dehydroaromatization (PDA) represents a promising route for the value‐added utilization of shale gas resources ...
Shijie Zhao   +9 more
wiley   +1 more source

Metal‐Ion Regulated Light‐Free Z→E Isomerization of Azobenzene Glycomacrocycle

open access: yesChemistry – A European Journal, EarlyView.
Metal ion‐catalyzed Z→E isomerization of photoswitchable azobenzene glycomacrocycle: A new azobenzene‐based glycomacrocycle is capable of forming a 1:1 complex with divalent metal ions in both E‐ and Z‐isomers. The complexes undergo light‐free Z→E isomerization in a timescale spanning from seconds to weeks.
Yang Zhou   +4 more
wiley   +1 more source

Stepwise Synthesis of Tetrabenzotriazaporphyrins (TBTAPs) and Their Open 2‐ and 3‐Ring Fragments

open access: yesChemistry – A European Journal, EarlyView.
Unexpected reaction pathways to porphyrin‐phthalocyanine hybrids are uncovered by the synthesis of “half‐macrocycle” fragments and subsequent macrocyclization. Rather than the expected 2:2 “ABBA” product, the 3:1 “ABBB” hybrid is isolated as the only macrocyclic product.
Jacob Gretton   +10 more
wiley   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel   +5 more
wiley   +1 more source

ديوان كانى (MS 384); منشأت (MS 385)

open access: yes
Birbirinden farklı 2 adet yazmanın bir araya getirilmesiyle oluşturulmuş ve ciltlenmiş bir eserdir (Yazma numaraları : MS 384, MS 385). Her iki yazma da Osmanlıca olup 1797 yılında yazılmıştır.
Kāni Ebūbekir b. Abdullāh Tokatlı [d. 1206 / 1792] / كانى ابوبكر (MS 384, MS 385)
core  

On Metal Carbonyl Compounds in Catalytic Methanol Synthesis: Detection, Consequences, and Removal

open access: yesChemie Ingenieur Technik, EarlyView.
Deactivation of Cu/ZnO/Al2O3 catalysts by metal carbonyl compounds in the feed gas is a critical problem in catalytic methanol synthesis. We utilize PTR–MS to identify potential chemical sources, detect contamination in an in‐house CO gas line, and validate filter methods for removing these catalyst poisons before synthesis.
Florian Stappert   +4 more
wiley   +1 more source

سرکذشت (MS 52); مبداء و معاد (MS 53); هدية المشتاق فى شرح مسلک العشاق (MS 54)

open access: yes
Birbirinden farklı 3 adet yazmanın bir araya getirilmesiyle oluşturulmuş ve ciltlenmiş bir eserdir (Yazma numaraları : MS 52, MS 53, MS 54). MS 52 : “Tarîkat-i aliye-i Bayramiyyeden taife-i Melâmiyyenin anane ve iradetleri ve keyfiyet-i sohbetleri ve aşk
La'lì-zāde Abdü’l-bākì [d. 1159 / 1746] / لعلی زاده عبد الباقی (MS 52, MS 53, MS 54)
core  

Development of a sustainable water treatment process using biochar as substrate for filtration and coliform removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Preparation, modification, and characterization of biochar from woodchips and its application in stream water filtration, evaluated through physicochemical and microbiological analyses. Abstract Global microbial water contamination affects 1.8 billion people, necessitating efficient and sustainable treatment methods.
Tariq Khalil   +8 more
wiley   +1 more source

The application of SIFT-MS for examining the degradation of polymers

open access: yes, 2023
Smith, Aaron   +3 more
openaire   +1 more source

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