Results 91 to 100 of about 195,996 (311)

Preparation of High-Entropy Alloy by Electrospinning and Its Application in Electrochemical Sensing for Detection of Heavy Metal Ions in Vegetables and Fruits [PDF]

Shipin Kexue
In this study, electrospinning was used to connect carbon nanofibers (CNFs) with multiple metals. Then, through high-temperature graphitization technology, uniformly sized high-entropy alloy nanoparticles (HEA NPs) were successfully synthesized in situ ...
QIAN Xin, DU Mingliang, ZHU Han, LU Shuanglong, DUAN Fang
doaj   +1 more source

Group-IV midinfrared plasmonics [PDF]

, 2015
The use of heavily doped semiconductors to achieve plasma frequencies in the mid-IR has been recently proposed as a promising way to obtain high-quality and tunable plasmonic materials. We introduce a plasmonic platform based on epitaxial n-type Ge grown
Baldassarre, Leonetta, Biagioni, Paolo, Calandrini, Eugenio, Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Isella, Giovanni, Millar, Ross W., Ortolani, Michele, Paul, Douglas J., Sakat, Emilie, Samarelli, Antonio   +11 more
core   +3 more sources

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Bioconcentration of Heavy Metals in high Density traffic area of Port Harcourt Metopolis, Nigeria

Journal of Applied Sciences and Environmental Management, 2015
The Bioconcentration factor (BCF) of selected heavy metals in grasses growing along High Density Traffic Area (HDTA) and Low Density Traffic Area (LDTA) of Port Harcourt metropolis was ascertained.
G Iwuoha, J Ogan, T Chikwe
doaj   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Fluxes and budgets of Cd, Zn, Cu, Cr and Ni in a remote forested catchment in Germany [PDF]

, 2018
The input of heavy metals by atmospheric deposition to forested watersheds substantially decreased during the last decades in many areas. The goal of our study was to identify the present sinks and sources of metals and factors influencing metal mobility
Huang, Jen-How, Ilgen, Gunter, Matzner, Egbert   +2 more
core  

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Characterizing the source contributions and spatial controls of heavy metals in stream sediments in northwestern China’s mining areas

Frontiers in Environmental Science
Heavy metal pollution in stream sediments of the Qaidam Basin, northwestern China, has attracted widespread attention due to its environmental and ecological implications.
Sheng Xue, Sheng Xue, Changwei Qi, Changwei Qi, Yongsheng Zhong, Bingyan Ji, Bingyan Ji, Zhao An, Zhao An, Shenglin Ma, Shenglin Ma, Zhenghui Li, Shengfu Li, Shengfu Li, Guoxia Wang, Guoxia Wang   +15 more
doaj   +1 more source

Protoneutron Star Winds

, 2003
Neutrino-driven winds are thought to accompany the Kelvin-Helmholtz cooling phase of nascent protoneutron stars in the first seconds after a core-collapse supernova.
Thompson, Todd A.
core   +2 more sources

Foliar lead uptake by lettuce exposed to atmospheric fallouts [PDF]

, 2010
Metal uptake by plants occurs by soil−root transfer but also by direct transfer of contaminants from the atmosphere to the shoots. This second pathway may be particularly important in kitchen gardens near industrial plants.
Alexander P., Alloway B. J., Andrews J. H., Arimoto R., Batonneau Y., Batonneau Y., Birkefeld A., Canfield R. L., Cecchi M., Chamel A., Chamel A., Choel M., Cosio C., Donisa C., Dordevic D., Douay F., Dumat C., Eichert T., Eichert T., Fernandez Espinosa A. J., Ferrandon M., Foy C. D., Glorennec P., Hirano T., Khan S., Klaminder J., Kozlov M. V., Lindow S. E., Lummerzheim M. S., Madoz-Escande C., Madoz-Escande C., Mengel K., Mosbaek H., Müller D., Ohmsen G. S., Salt D. E., Schonherr J., Schönherr J., Schönherr J., Sobanska S., Sobanska S., Tjell J. C., Uzu G., Waisberg M., Zhang Z.   +44 more
core   +3 more sources