Results 61 to 70 of about 112,711 (289)

Manipulating Multiple Order Parameters via Oxygen Vacancies: The case of Eu0.5Ba0.5TiO3-{\delta} [PDF]

, 2017
Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition metal oxides.
Borisevich, Albina Y., Bowlan, John, Chen, Bin, Chen, Hou-Tong, Dai, Jiahong, Gu, Junxing, Guo, Haizhong, He, Qian, Hu, Zhijun, Jin, Kuijuan, Ju, Sheng, Li, Run-Wei, Li, Weiwei, Ling, Langsheng, Pi, Li, Ruediger, Andreas, Shen, Shipeng, Shi, Daning, Sun, Young, Velasco-Davalos, Ivan A., Wang, Haiyan, Wang, Le, Wang, Yongqiang, Wu, Yangjiang, Yang, Hao, Yarotski, Dmitry A., Zeng, Huizhong, Zhang, Wenrui, Zhang, Yuheng, Zhao, Run   +29 more
core   +3 more sources

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Oxygen vacancy-induced strengthening and toughening in (K,Na)NbO3-based piezoceramics revealed via nanoindentation

Nature Communications
Dislocations are emerging as a pivotal factor for tailoring ceramics’ functional and mechanical properties. The introduction of point defects, notably oxygen vacancies, is unavoidable during the conventional sintering process in polycrystalline ceramics.
Zhidong Zhang, Bin Yang, Longyu Chen, Zaoli Zhang, Jinming Guo   +4 more
doaj   +1 more source

Europium-Doped Ceria Nanowires as Anode for Solid Oxide Fuel Cells

Frontiers in Chemistry, 2020
CeO2-based materials have been studied intensively as anodes for intermediate temperature solid oxide fuel cells (IT-SOFCs). In this work, pristine and europium (Eu)-doped CeO2 nanowires were comprehensively investigated as anode materials for IT-SOFCs ...
Shuai Li, Shuai Li, Shuai Li, Xia Lu, Siqi Shi, Liquan Chen, Zhaoxiang Wang, Yusheng Zhao, Yusheng Zhao   +8 more
doaj   +1 more source

Correlation between oxygen flow-controlled resistive switching and capacitance behavior in gallium oxide memristors grown via RF sputtering

Heliyon, 2023
We studied on the bipolar resistive switching (RS)-dependent capacitance of Ga2O3 memristors, grown using controlled oxygen flow via a radio frequency sputtering process.
Hye Jin Lee, Jeong-Hyeon Kim, Jongyun Choi, Yoon Seok Kim, Sung-Nam Lee   +4 more
doaj   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Phosphorous-vacancy-oxygen defects in silicon [PDF]

Journal of Materials Chemistry A, 2013
Electronic structure calculations employing the hybrid functional approach are used to gain fundamental insight in the interaction of phosphorous with oxygen interstitials and vacancies in silicon. It recently has been proposed, based on a binding energy analysis, that phosphorous-vacancy-oxygen defects may form. In the present study we investigate the
Wang, H., Chroneos, A., Hall, D., Sgourou, E.N., Schwingenschlögl, U.   +4 more
openaire   +4 more sources

The interplay between dopants and oxygen vacancies in the magnetism of V-doped TiO2

, 2011
Density functional theory calculations indicate that the incorporation of V into Ti lattice positions of rutile TiO2 leads to magnetic V4+ species, but the extension and sign of the coupling between dopant moments confirm that ferromagnetic order cannot ...
Grau-Crespo, Ricardo, Schwingenschlögl, Udo   +1 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Charge Distribution Near Oxygen Vacancies in Reduced Ceria

, 2009
Understanding the electronic charge distribution around oxygen vacancies in transition metal and rare earth oxides is a scientific challenge of considerable technological importance.
McKenzie, Ross H., Shoko, E., Smith, M. F.   +2 more
core   +1 more source