Results 151 to 160 of about 6,995 (287)

Defect-Driven Optical Modulation in Rare-Earth-Modified Zn₂SnO₄ Spinels for Advanced Optoelectronic Applications. [PDF]

ACS Omega
Raji RK, Alnahdi NS, Hamam T, Qamhieh N, Najar A, Awwad F, Mahmoud ST.   +6 more
europepmc   +1 more source

Oxidation of Allylic Alcohols by Manganese Oxides: Elucidating the Influences of MnOx Structure and Mn Oxidation State on Reactivity

Chemistry – A European Journal, EarlyView.
Manganese oxides (MnOX) of different structures and with different Mn oxidation states exhibit significant variation in their reactivity toward the oxidation of allylic alcohols. Using two allylic alcohol model substrates, we demonstrate the relationship between activity and MnOX structure, Mn4+ content and incorporated secondary cations.
Erdogan Kasisari, Leandra Meyer, S. Esmael Balaghi, Harald Scherer, Patrick Elsässer, Anna Fischer, Philipp Kurz   +6 more
wiley   +1 more source

Correction: Half-metallic ferromagnetism and thermoelectric-efficient behavior in chalcogenide spinels MgNi₂X₄ (X = S, Se): a first-principles approach. [PDF]

RSC Adv
Ramzan A, Sofi MY, Ishfaq-Ul-Islam M, Khan MS, Khan MA.   +4 more
europepmc   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Enhancing Li-S Battery Kinetics via Cation-Engineered Al³⁺/Fe³⁺-Substituted Co₃O₄ Spinels. [PDF]

Materials (Basel)
Lin Z, Wang M, Fu W, Gu Z, Yang Z, Guan K, Yang Z, Wang L, Wang W, Zhu K.   +9 more
europepmc   +1 more source

Role of Lewis centres on ethanol dehydrogenation over the Cu‐Cr/γ‐Al2O3 system

The Canadian Journal of Chemical Engineering, EarlyView.
Cu–Cr interactions on alumina enhance Lewis acid site density, boosting selectivity towards ethanol dehydrogenation products. Soft coke formation on copper and Cu–Cr sites drives deactivation, shifting the reaction towards unwanted dehydration products.
Sakun Preedavijitkul, Wei Tian, Andres Rodriguez‐Marmolejo, Pantita Trongjitraksa, Chaowat Autthanit, Piyasan Praserthdam, Bunjerd Jongsomjit, Jose E. Herrera   +7 more
wiley   +1 more source

Local structures and catalytic N₂O decomposition properties of Ni_1-xCu_xCo₂O₄. [PDF]

Sci Rep
Hinokuma S, Uchiyama N, Taketsugu T, Iwasa T.   +3 more
europepmc   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi, Jildimara de Jesus Santana, Alexander R. P. Harrison, Sara Andreoli, Ewa Marek, Stuart Scott, Mohammad Latifi, Gregory S. Patience   +7 more
wiley   +1 more source

Mechanically robust and thermodynamically stable FeSc₂Z₄ (Z = S, Se) spinels for future spintronic architectures. [PDF]

RSC Adv
Anwar A, Noor NA, Mustafa GM, Atiq S, Ibrahim A, Laref A.   +5 more
europepmc   +1 more source

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

EcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan, Yu Zhang, Zhazira Supiyeva, Qamar Abbas   +3 more
wiley   +1 more source