Results 121 to 130 of about 1,131,381 (293)

Circular and Bio‐Sourced Polymers for Energy Applications: Natural Feedstocks, Recycling, and Upcycling Routes

open access: yesEcoEnergy, EarlyView.
This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha   +3 more
wiley   +1 more source

Extração e microencapsulamento de extratos de interesse biológico provenientes de pimenta-do-reino (Piper nigrum L.) e de pimenta rosa (Schinus terebinthifolius R.) [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Alimentos, Florianópolis, 2015.O comércio de especiarias está em constante crescimento, e as pimentas figuram entre as mais ...
Andrade, Kátia Suzana
core  

Latitudinal effect on the structure of snake–prey interaction networks is mediated by snake species richness

open access: yesEcography, EarlyView.
Despite the growing number of studies on trophic networks in recent decades, there are still important gaps in our understanding of how these networks are structured across broad environmental gradients. These gaps are even greater in some groups of terrestrial vertebrates, such as snakes, requiring a cohesive synthesis of their broader trophic ...
Daniela Pinto‐Coelho   +4 more
wiley   +1 more source

Desenvolvimento de um processo de separação de compostos bioativos de Rosmarínus officinalis [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Química, Florianópolis, 2012O presente trabalho tem o objetivo principal de desenvolver um processo para separar compostos bioativos do
Zibetti, André Wüst
core  

Lattice‐Strained Cu2O‐Ni/NiO Heterostructure Enables Selective Electrocatalytic C–C Coupling of Alcohols to Cinnamaldehyde in Aqueous Medium

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study achieved the selective oxidation C–C coupling of PhCH2OH with EtOH to form cinnamaldehyde (CAL) on a designed Cu2O‐Ni/NiO heterojunction catalyst. By employing a salt precipitation strategy to balance the pH and cation concentration, an 86% conversion rate of PhCH2OH and a 67% high selectivity for CAL were realized.
Tian Cheng   +10 more
wiley   +1 more source

Enhanced Urea Oxidation Reaction by Mn‐Doped Nickel Hydroxide From Wastewater

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mn incorporation modifies the hydroxide structure and modulates the electronic properties of the Ni centers, promoting the formation of catalytically active NiOOH species. Mn dopants induce a favorable electronic effect but do not directly participate in the UOR mechanism, enhancing the overall urea oxidation rate and resulting in increased hydrogen ...
Filippo Bano   +8 more
wiley   +1 more source

Obtenção de extrato de erva baleeira (Cordia verbenacea D.C.) por diferentes técnicas: medida da atividade biológica, modelagem matemática e determinação do equilíbrio de fases [PDF]

open access: yes, 2009
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Alimentos.A erva baleeira (Cordia verbenacea) é uma planta da Família das Borraginaceae, encontrada nas restingas marítimas de quase
Michielin, Eliane Maria Zandonai
core  

Extraction of rosavin from Rhodiola rosea root using supercritical carbon dioxide with water

open access: yes, 2009
In this study, a new extraction method for the isolation of rosavin from dried crushed roots of Rhodiola rosea is being developed using supercritical CO2 and water. Rosavin extracts quantitatively and qualitatively were compared to commonly used solvents
Dey, Estera,   +2 more
core   +1 more source

Coated and Immobilized Polysaccharides‐Based Stationary Phases for Planar Metallocenes Enantioseparation in Liquid Chromatography

open access: yesELECTROPHORESIS, EarlyView.
This study examined 21 new ferrocene and ruthenocene derivatives, including those with planar and central chirality. Their stereochemical behavior was examined using UV‐detected normal‐phase liquid chromatography. Under fixed conditions, eight polysaccharide‐based chiral stationary phases were tested using n‐heptane combined with either 2‐propanol or ...
Florine Wartelle   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy