Results 41 to 50 of about 9,159 (244)
Obtenção de H2 através da decomposição do CH4 utilizando catalisadores metálicos suportados [PDF]
, 2007 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-graduação em QuímicaEste trabalho descreve a síntese de catalisadores compostos por uma fase ativa contendo Ni e Co em diferentes ...
Nuernberg, Giselle de Boit
core
Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon
Advanced Materials, EarlyView.We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra +17 more
wiley +1 more source
Dissolution behaviors of Ta2O5, Nb2O5 and their mixture in KOH and H2O system
, 2010 The dissolution behaviors of Ta2O5, Nb2O5 and their mixture in KOH and H2O system were investigated. A L-9(3(4)) orthogonal design was used to study the effects of reaction temperature, mass ratio of KOH to Ta2O5, and reaction time on the dissolution ...
Wang, XH +7 more
core +1 more source
Advanced Science, EarlyView.A non‐filamentary self‐rectifying HfO2/TiOx resistive random‐access memory integrates H2 annealing with an incremental step pulse with verify algorithm to achieve stable and linear analog conductance modulation. The device enables low‐current 6‐bit multilevel operation while suppressing sneak current in crossbar arrays. Implemented in Transformer‐based
Seonjeong Lee +5 more
wiley +1 more source
Advanced Science, EarlyView.This study maps out the hierarchical ordering in 1:2 B‐site complex perovskite ceramics using a comprehensive multiscale characterization route. It turns out that intradomain strain, oxygen vacancies, and Mg disorder within the ordered domains act as strong phonon scatterers.
Qingqiao Fu +6 more
wiley +1 more source
Fabrication of Nb2O5/C nanocomposites as a high performance anode for lithium ion battery
, 2017 Nb2O5/C nanosheets are successfully prepared through a mixing process and followed by heating treatment. Such Nb2O5/C based electrode exhibits high rate performance and remarkable cycling ability, showing a high and stable specific capacity of ∼380 mAh g−
Zeng, Gan-Ying +5 more
core +1 more source
Polymorphs of Nb2O5 Compound and Their Electrical Energy Storage Applications
, 2023 Niobium pentoxide (Nb2O5), as an important dielectric and semiconductor material, has numerous crystal polymorphs, higher chemical stability than water and oxygen, and a higher melt point than most metal oxides.
Jinkai Li +3 more
core +1 more source
Neuromorphic Devices and Computing for Sensing, Memory, and Control
Advanced Science, EarlyView.This review introduces neuromorphic devices made from diverse materials. These devices mimic neuronal functions and architectures and, when integrated with artificial or biological computing, can form closed loops with neurons for pressure, optical, acoustic, and biochemical sensing and modulation.
Zhengguang Zhu +2 more
wiley +1 more source
Pseudohexagonal Nb2O5 Anodes for Fast-Charging Potassium-Ion Batteries [PDF]
, 2023 High-rate batteries will play a vital role in future energy storage systems, yet while good progress is being made in the development of high-rate lithium-ion batteries, there is less progress with post-lithium-ion chemistry.
Chen, Jintao +4 more
core +1 more source
Advanced Science, EarlyView.An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal +7 more
wiley +1 more source