Results 241 to 250 of about 21,504 (309)

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source

A bound for relative magnetic helicity in terms of free magnetic energy. [PDF]

Discov Space
MacTaggart D.
europepmc   +1 more source

A Bio‐Based Chiroptical Overcrowded Alkene From Flavanone: Photoreactivity and Theoretical Investigation

Chemistry – A European Journal, EarlyView.
A sustainable route to photoresponsive molecular systems is achieved using the bio‐based flavanone (‐)‐isolonchocarpin from Tephrosia vogelii. Through McMurry homocoupling and light‐driven 6‐π‐electrocyclization, an overcrowded alkene and a fluorescent O‐heterocyclic phenanthrene are synthesized.
Deryl H. Limawan, Adrien Combe, Anthony Bongso, Bayu Dwiputra, Atthar L. Ivansyah, Roza R. Weber, Charlotte N. Stindt, Robby Roswanda, Ben L. Feringa   +8 more
wiley   +1 more source

Bayesian regularization optimization technique for hybrid nanofluid with Cattaneo Christov flux model using wax and sand nanoparticles. [PDF]

Discov Nano
Liaqat S, Alhashmi AA, Jaghdam IH, Alkhaldi TM, Abbas M, Darem AA.   +5 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

A galactic cosmic ray cavity in Earth-Moon space. [PDF]

Sci Adv
Shang W, Liu J, Xu Z, Yue C, Guo R, Xiao C, Shi Q, Wimmer-Schweingruber RF, Guo J, Degeling AW, Rankin R, Tian A, Zong QG, Han C, Park JS, Wang H, Liu W, Fu S, Zhai LM, Chen D, Ni S, Chen TL.   +21 more
europepmc   +1 more source

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Electric Fields and Waves in the Venus Nightside Magnetosphere. [PDF]

Space Sci Rev
Mozer FS, Agapitov AV, Bale SD, Bonnell JW, Pulupa M, Quinn T, Voshchepynets A.   +6 more
europepmc   +1 more source

Iron and Nickel Substituted Perovskite Cobaltites for Sustainable Oxygen Evolving Anodes in Alkaline Environment

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Perovskite oxide catalysts with reduced Co content, substituted by Fe and Ni, are synthesized and studied for their activity in the oxygen evolution reaction in alkaline media. An increase in the intrinsic catalytic activity (obtained by the (RctCdl)−1 product) of the base material (Ba0.5Gd0.8La0.7Co2O6‐δ) is seen for an as high as 70 % substitution of
Henrik Petlund, Alaa Faid, Junjie Zhu, Anuj Pokle, Truls Norby, Svein Sunde, Athanasios Chatzitakis   +6 more
wiley   +1 more source

Day-to-Day Boundary Fluctuations in Coronal Holes: Causes and Consequences. [PDF]

Sol Phys
Ugarte-Urra I, Wang YM, Muglach K, Sheeley NR.   +3 more
europepmc   +1 more source