Results 141 to 150 of about 1,104,915 (315)

Dynamical modes associated with the Antarctic ozone hole [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
Generalized Maximum Covariance Analysis (GMCA) has been developed and applied to diagnosing the dynamical modes associated with variations in the Antarctic spring ozone hole.
B. C. Weare
doaj  

Functionalizing Conductive Diamond: Recent Advance in Fabrication, Modifications, and Applications

open access: yesCarbon Energy, EarlyView.
This review highlights recent advancements in the synthesis, modification, and electrochemical applications of conductive diamond, particularly boron‐doped diamond (BDD). It emphasizes progress in fabrication methods, including CVD and HPHT, and explores modifications such as doping, surface terminations, and composite design, enabling significant ...
Ning Linghu, Xin Jiang, Jing Xu
wiley   +1 more source

Carbon/Silicon Heterojunction Solar Cells: Status and Perspectives

open access: yesCarbon Energy, EarlyView.
This review examines carbon/silicon heterojunctions and highlights the advantages of carbon materials in terms of cost‐effectiveness, low‐temperature processing, and scalability. It adopts a comprehensive approach to bridge the gap between laboratory‐scale innovations and industrial‐scale applications, incorporating current state‐of‐the‐art findings ...
Randi Azmi   +6 more
wiley   +1 more source

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

open access: yesThe 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   +4 more
wiley   +1 more source

Arctic Ozone Hole and Enhanced Mid‐Latitude Ozone Losses Due To Heterogeneous Halogen Chemistry Following a Regional Nuclear Conflict

open access: yesEarth's Future
In a global‐scale nuclear war, massive explosions, intense heat, and radioactive fallout would cause extensive harm to humanity and ecosystems. Further, previous studies of even regional‐scale nuclear conflicts show that the smoke from large‐scale fires ...
Simchan Yook   +3 more
doaj   +1 more source

Insight Into the Origins of N2O Byproduct on Confinement Structure TiO2/MnSm Catalyst Through Sulfation Pre‐Treatment for Low‐Temperature NH3‐SCR Reaction

open access: yesEcoEnergy, EarlyView.
Sulfation of TiO2 with tubular architecture assembly nanosheets cooperated with Sm modification endowed the TiO2–SO42−/MnSm catalyst with excellent low‐temperature NH3‐SCR activity, high N2 selectivity, and well H2O‐resistance. It clarifies how the Sm modification and sulfation adjusts the distribution of acid sites and modulates the activation of NH3 ...
Tian Zhao   +5 more
wiley   +1 more source

Chlorofluorocarbons and the ozone hole [PDF]

open access: yes, 2016
Ozon je plin koji je prisutan u Zemljinoj atmosferi i alotropska je modifikacija kisika, molekulske formule O3. Većim dijelom je smješten u vrlo visokim slojevima atmosfere poput stratosfere (12-50 km visine) gdje se nalazi približno 90% ozona.
Kovačević, Martina
core   +1 more source

Enhanced Thermal Durability and Efficiency of Organic Solar Cells via Selective Organic Electron Transport Layers

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
PDINN‐based organic solar cells exhibit strong thermal durability, maintaining high efficiency at 110°C, whereas PFN‐Br devices degrade rapidly. PDINN's stable interfacial interactions enhance charge transport and suppress recombination, emphasizing the key role of interfacial engineering in achieving thermally durable, high‐performance OSCs.
Hye Seon Shin   +7 more
wiley   +1 more source

Ag‐Induced Phase and Defect Engineering of Co‐Evaporated Sb2Se3 Thin Films for Enhanced Photovoltaic Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The sequential formation of Ag2Se and AgSbSe2 phases at the Sb2Se3/Mo interface upon Ag incorporation in co‐evaporated Sb2Se3 solar cells promotes grain growth and defect passivation. These newly formed intermediate phases enhance crystallinity and suppress recombination, leading to significant improvements in open‐circuit voltage, fill factor, and ...
Van‐Quy Hoang   +16 more
wiley   +1 more source

An automated ozone photometer [PDF]

open access: yes
A photometer capable of automatically measuring ozone concentration data to very high resolution during scientific research flights in the Earth's atmosphere was developed at NASA Ames Research Center.
Lavelle, Joseph R.
core   +1 more source

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