Results 81 to 90 of about 8,132 (220)

Synergistic Regulation of Hierarchical Anode Interphase and Cathode Electronic Structure by a Fe(III) Complex for High‐Performance Aqueous Zinc‐Manganese Battery

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The NGB additive can concurrently address anode and cathode issues during Zn‐Mn battery cycling by constructing a hierarchical interfacial layer on the anode surface to alleviate side reactions and modulate zinc deposition and by incorporating Fe3+ ions into the α‐MnO2 cathode to improve its structural stability and electrical conductivity.
Xiaoliang Zhang, Lei Chen, Xiaojie Lu, Aishan He, Weifeng Shen, Chunxia Wang, Yong Liu, Xiangwu Zhang   +7 more
wiley   +1 more source

Influence of the parameters of thermal decomposition of ammonium tetravanadate on the processes of phase formation of highly dispersed vanadium oxides.

Trudy Odesskogo Politehničeskogo Universiteta
The peculiarities of the thermal decomposition of the highly dispersed vanadium (IV) ammonium tetrabutanate salt, which is a precursor for the production of nanocrystalline vanadium oxides of different degrees of oxidation (V2O5, VO2), are studied.
Катерина Вікторівна Лускань, Альона Олександрівна Гиренко, Олег Петрович Мисов, Марія Олегівна Савченко, Олександр Павлович Клименко   +4 more
doaj  

Broadband Three-Mode Tunable Metamaterials Based on Graphene and Vanadium Oxide

Nanomaterials
Terahertz waves have great potential for applications in security imaging, wireless communication, and other fields, but efficient and tunable terahertz-absorbing devices are the key to their technological development.
Hao Wen, Shouwei Wang, Yiyang Cai, Zhuochen Zou, Zheng Qin, Tianyu Gao   +5 more
doaj   +1 more source

Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2

Nature Communications, 2020
Ultrafast driving of vanadium dioxide can induce a large structural phase transition, which can be used to generate picosecond strain pulses. Here the authors show that the photo-induced phase transition can contribute 0.45% strain without causing ...
Iaroslav A. Mogunov, Sergiy Lysenko, Anatolii E. Fedianin, Félix E. Fernández, Armando Rúa, Anthony J. Kent, Andrey V. Akimov, Alexandra M. Kalashnikova   +7 more
doaj   +1 more source

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

ENERGY &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, Da Chen, Daniele Perilli, Samuele Zambonin, Dario Mosconi, Marco Roverso, Veronica Celorrio, Cristiana Di Valentin, Laura Calvillo   +8 more
wiley   +1 more source

Evidence for impact ionization in vanadium dioxide

Physical Review B, 2016
Pump-probe optical spectroscopy was used to investigate proposed charge-carrier multiplication via impact ionization in the ${M}_{1}$ insulating phase of ${\mathrm{VO}}_{2}$. By comparing the transient reflectivities of the film when pumped at less than and then more than twice the band-gap energy, we observed a larger ultrafast response with the ...
Joshua Holleman, Michael M. Bishop, Carlos Garcia, J. S. R. Vellore Winfred, Shinbuhm Lee, Ho Nyung Lee, Christianne Beekman, Efstratios Manousakis, Stephen A. McGill   +8 more
openaire   +2 more sources

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

FlexMat, EarlyView.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou, Xin‐Yi Zeng, Jian‐Xin Tang, Yan‐Qing Li   +3 more
wiley   +1 more source

A visible‐to‐infrared miniaturized indium selenide spectrometer enabled by a gate‐tunable spectral response matrix

InfoScience, EarlyView.
Traditional light‐analyzing tools, known as spectrometers, are typically too bulky and expensive to fit into portable electronics like smartphones or wearables. In this study, we developed a microscopic, high‐performance spectrometer using a material called Indium Selenide combined with smart algorithms to accurately analyze light from the visible to ...
Jing Chen, Zhen‐Hua Wang, Zheng Zhang, Hengji Li, Xiao‐Ming Wu, Tian‐Ling Ren, Hong Liu, Min Jin, Lin Han   +8 more
wiley   +1 more source

Operando Raman Spectroscopic Studies on Propane Dehydrogenation Over Co‐Based Catalysts

Journal of Raman Spectroscopy, EarlyView.
Operando Raman spectroscopy was applied to investigate carbon‐containing species during propane dehydrogenation to propene over 3‐wt.% cobalt on silicalite‐1. The emergence of G and D Raman bands correlated with increased propene formation, suggesting that coverage of metallic Co by carbon species may be essential for selective propane dehydrogenation.
Jana Weiß, Qiyang Zhang, Evgenii V. Kondratenko, Christoph Kubis   +3 more
wiley   +1 more source

The influence of deposition temperature on vanadium dioxide thin films microstructure and physical properties

South African Journal of Science, 2010
Vanadium dioxide thin films were successfully prepared on soda lime glass substrates using the optimised conditions for r.f-inverted cylindrical magnetron sputtering.
Velaphi Msomi, Oaisin Nemraoui
doaj