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Mostrando ítems 71-80 de 96
Modificação de semicondutores de Sb2Se3 com co-catalisadores de MoSx e Pt para a produção de hidrogênio verde via water splitting solar
(Universidade Federal de São Carlos, 2022-11-23)
Sb2Se3 semiconductors have been shown to be excellent photocathodes with attractive optoelectronic properties when compared to other photoabsorbers commonly used. However, its photocorrosion in aqueous media prevents it ...
Reação de redução de compostos nitrogenados: de aspectos fundamentais em monocristais de Pt à utilização de nanopartículas bimetálicas
(Universidade Federal de São Carlos, 2022-02-23)
Because of the high consumption of nitrogen-based compounds by both industry and agriculture, there is an imbalance in nitrogen cycle and the nitrate and nitrite reduction reaction can be a solution. These processes are ...
Transições entre estados espaciais não homogêneos em sistemas químicos e biológicos
(Universidade Federal de São Carlos, 2019-07-22)
In the article The Chemical Basis of Morphogenesis - 1952, Alan M. Turing proposed that the morphogenesis could be described through a specific reaction mechanism which enables the emergence of inhomogeneous and stationary ...
Esfoliação e funcionalização de nanofolhas de MoS2: desenvolvimento de novos materiais elastoméricos
(Universidade Federal de São Carlos, 2021-09-30)
Two-dimensional materials, such as MoS2, have been extensively studied in recent decades due to their excellent properties in electronics, electrocatalysis, optics and mechanics. A major focus in recent research resides ...
Estudo teórico e experimental da interação de elétrons com moléculas de interesse astroquímico
(Universidade Federal de São Carlos, 2021-09-08)
We performed a theoretical and experimental investigation on electron (e⁻) scattering by molecules of astrochemical interest. Theoretically, we obtained elastic differential (DCSs), integral (ICSs) and momentum-transfer ...
Espalhamento elástico de elétrons e ionização dissociativa da molécula de trimetil fosfato
(Universidade Federal de São Carlos, 2021-09-28)
The trimethyl phosphate molecule is an important prototype for studying electron interactions with molecules of biological significance containing the phosphate group. These studies contribute to the understanding of energy ...
Dopagem e formação de heterojunções como estratégias para o melhoramento da propriedade fotocatalítica de Ag3PO4
(Universidade Federal de São Carlos, 2022-06-27)
In recent years, the growing technological and industrial activities in sectors such as pharmaceuticals and textiles have shown side effects on the environment and human health. Such effects are related to the generation ...
Metodologias de sínteses de nanoestruturas de dissulfeto de molibdênio (MoS2) via rotas top-down e bottom-up e aplicações para remediação ambiental
(Universidade Federal de São Carlos, 2022-11-28)
The development of nanostructured platforms and nanocomposites has shown potential for applications aimed at pollutants mitigation. Molybdenum disulfide (MoS2) is one of these versatile nanomaterials that can act as pollutant ...
Investigação da eletrodeposição de ligas de Zn-Fe-Mo e caracterização química, estrutural e morfológica dos filmes
(Universidade Federal de São Carlos, 2021-08-19)
In this work, an alkaline bath for electrodeposition of Zn-Fe-Mo alloy containing glycerol was developed. Potentiometric titration of the Fe3+/glycerol bath showed that soluble Fe(III)-glycerol complex was formed at pH > ...
Desenvolvimento de uma metodologia para determinação de Cu, Cr e As utilizando microeletrodos
(Universidade Federal de São Carlos, 2005-07-27)
Using carbon fiber microelectrode modified with a film of Hg. The employed techniques were differential pulse voltammetry coupled to the adsorptive cathodic stripping for the As and Cr and the differential pulse voltammetry ...