Results 91 to 100 of about 251,192 (298)

Scientific Opinion on the use of cobalt compounds as additives in animal nutrition

EFSA Journal, 2009
In the light of genotoxicity of cobalt(II) compounds and their presumed carcinogenicity after inhalatory exposure, the use of cobalt compounds as additives in animal nutrition has been assessed, considering (i) the necessity of its use for all animal ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Photoionization of Co$^{+}$ and electron-impact excitation of Co$^{2+}$ using the Dirac R-matrix method [PDF]

, 2016
Modelling of massive stars and supernovae (SNe) plays a crucial role in understanding galaxies. From this modelling we can derive fundamental constraints on stellar evolution, mass-loss processes, mixing, and the products of nucleosynthesis.
Ballance, C. P., Hibbert, A., Ramsbottom, C. A., Tyndall, N. B.   +3 more
core   +2 more sources

Cobalt(II) formate hydroxide

Acta Crystallographica Section E Structure Reports Online, 2005
The title compound, poly[μ3-formato-μ3-hydroxo-cobalt(II)], [Co(CHO2)(OH)]n, adopts a polymeric three-dimensional network structure arising from the μ3-bridging mode of both the formate and the hydroxide. The Co atom lies in a fac octa­hedron of six O atoms, three of which belong to three different formates and the other three to different hydroxides.
Yun-Long Fu, Jia-Lin Ren, Zhi-Wei Xu, Seik Weng Ng   +3 more
openaire   +1 more source

Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 more
wiley   +1 more source

A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite

Sensors, 2003
The electrochemical properties of a new Co(II) deuteroporphyrin substituted by two electropolymerizable pyrrole groups has been investigated in organic solvent.
Michael Wedel, Franz-Peter Montforts, Rudolf Wessel, Chantal Gondran, Serge Cosnier   +4 more
doaj   +1 more source

High temperature structural and magnetic properties of cobalt nanowires [PDF]

, 2012
We present in this paper the structural and magnetic properties of high aspect ratio Co nanoparticles (~10) at high temperatures (up to 623 K) using in situ X ray diffraction (XRD) and SQUID characterizations.
Barnier, Campbell, Chernysheva, Ciuculescu, Dumestre, Dumestre, Fatih Zighem, Frédéric Ott, Frédéric Schoenstein, Grégory Chaboussant, Guillaume Viau, Huang, Jean-Yves Piquemal, Jérémie Margueritat, Kahina Ait Atmane, Karim, Li, Lieber, Luo, Maurer, Maurer, Maurer, Mona Ibrahim, Morelos-Gómez, Nisoli, Noureddine Jouini, O'Handley, Ono, Ott, Pak, Rym Boubekri, Samardak, Schio, Sellmyer, Soulantica, Soumare, Soumare, Thomas Maurer, Tilmaciu, Viau, Vidal, Weissker, Xia, Xie, Yaghoub Soumare, Zhang   +45 more
core   +5 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Synthesis, characterization, and antitumor evaluation of a kaempferol–cobalt(II) complex targeting TMPRSS2 gene in lung cancer cells [PDF]

Pharmacia
Background: Transmembrane serine protease 2 (TMPRSS2) has been distinguished as a tumor suppressor in lung adenocarcinoma, and its reduced expression has been associated with disease progression. Aim: To estimate the effects of a kaempferol–metal
Zainab Tuama Al-Dallee, Hiba Najeh Alsaad, Sabaa Ali Mohammed Al-Fadal   +2 more
doaj   +3 more sources

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source