Results 121 to 130 of about 263,525 (263)

Combinação de tratamentos químicos para a potabilização das águas descartadas de frigoríficos [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2010A indústria de alimentos consome grande quantidade de água potável e, com o aumento da população, advém ...
Luiz, Danielle de Bem
core  

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

open access: yesAdvanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel   +3 more
wiley   +1 more source

Degradação fotocatalítica de fenol utilizando nanofios de dióxido de titânio modificados com nitrogênio [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia QuímicaEntre as atuais tecnologias existentes para remoção de poluentes em águas e efluentes industriais, a oxidação ...
Ilha, Jackson
core  

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

open access: yesAdvanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim   +13 more
wiley   +1 more source

Synergistic Spin‐Polarization and Single‐Atom Engineering in Magnetic Heterojunctions for Efficient Solar Water Splitting

open access: yesAdvanced Science, EarlyView.
High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren   +8 more
wiley   +1 more source

Catalytic oxidation of trichloroethylene over TiO2 supported ruthenium catalysts

open access: yes, 2016
Different types of TiO2 (anatase, P25 and rutile) supported ruthenium catalysts were synthesized by wet impregnation and directly reduced in H-2.
Wang, Jian   +4 more
core   +1 more source

Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics

open access: yesAdvanced Science, EarlyView.
Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu   +9 more
wiley   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

Ni掺杂TiO2和Cu2O/TiO2复合薄膜的光催化活性

open access: yes, 2006
光催化技术是自20世纪70年代逐步发展起来的一门新兴的高级氧化技术,它利用光催化剂在光照下产生的光生电子的还原性能和光生空穴的氧化性能,可有效的分解各种污染物,在环境治理和环保材料的应用等领域具有广阔的应用前景。光催化技术的核心是光催化剂,提高光催化剂的催化活性是光催化技术应用的关键。本文通过对Ni掺杂TiO2和Cu2O/TiO2复合薄膜的光电性能和光催化活性的研究,探讨了半导体金属离子掺杂形成缓变结和半导体复合形成突变结对催化剂光催化活性增强的机理,为高性能的光催化剂开发及光催化技术的应用提供理论基础。
于华
core   +1 more source

Home - About - Disclaimer - Privacy