نتایج جستجو برای: hydrazine

تعداد نتایج: 3026  

2009
Zhi-Qiang Gao

The title compound, C(12)H(12)N(4), was synthesized by the reaction of hydrazine hydrate and 9-methyl-3,4,6,7-tetra-hydro-2H-xanthene-1,8(5H,9H)-dione in ethanol. In the crystal, the mol-ecule lies across an inversion centre. The pyridazine rings are coplanar and the C(6) rings adopt envelope conformations.

Journal: :Chemical communications 2015
Deyan Zhou Yangyang Wang Jiong Jia Wenzhu Yu Baofeng Qu Xia Li Xuan Sun

In situ morphological transition and turn-on fluorescence of self-assembled NDI derivatives driven by hydrazine hydrate are realized through H-bonding and charging of aromatic building blocks, demonstrating a stimuli-responsive supramolecular system useful for visual detection of hydrazine hydrate.

2015
Lukas Lauko Roman Hudec Katarina Lenghartova Alena Manova Frantisek Cacho Ernest Beinrohr

Hydrazine in water samples is determined by constant current chronopotentiometry in porous carbon electrodes. Hydrazine in alkaline solutions is oxidised to nitrogen in the pores of the electrode by constant current. Two types of electrodes made of reticulated vitreous carbon (RVC) were used, one fabricated from crushed RVC particles, the other with the original RVC material of 100 ppi porosity...

2017
Salem Ould-Amara Dominique Granier Rodica Chiriac François Toche Pascal G. Yot Umit B. Demirci

Boron- and nitrogen-based materials have shown to be attractive for solid-state chemical hydrogen storage owing to gravimetric hydrogen densities higher than 10 wt% H. Herein, we report a new derivative of hydrazine borane N₂H₄BH₃, namely lithium hydrazinidoborane ammoniate LiN₂H₃BH₃·0.25NH₃. It is easily obtained in ambient conditions by ball-milling N₂H₄BH₃ and lithium amide LiNH₂ taken in eq...

2017
Kamran Akbar Jung Hwa Kim Zonghoon Lee Minsoo Kim Yeonjin Yi Seung-Hyun Chun

Hydrazine fuel-cell technology holds great promise for clean energy, not only because of the greater energy density of hydrazine compared to hydrogen but also due to its safer handling owing to its liquid state. However, current technologies involve the use of precious metals (such as platinum) for hydrazine oxidation, which hinders the further application of hydrazine fuel-cell technologies. I...

Journal: :Dalton transactions 2012
Senem Karahan Mehmet Zahmakıran Saim Özkar

Safe and efficient hydrogen storage is a major obstacle for using hydrogen as an energy carrier. Therefore, intensive efforts have been focused on the development of new materials for chemical hydrogen storage. Of particular importance, hydrazine borane (N(2)H(4)BH(3)) is emerging as one of the most promising solid hydrogen carriers due to its high gravimetric hydrogen storage capacity (15.4 wt...

Journal: :The Journal of pharmacology and experimental therapeutics 1999
T C Sarich S P Adams G Petricca J M Wright

Isoniazid (INH), a widely used drug in the prophylaxis and treatment of tuberculosis, is associated with a 1 to 2% risk of severe and potentially fatal hepatotoxicity. There is evidence that the INH metabolite hydrazine plays an important role in the mechanism of this toxicity. Metabolism of INH leads to the production of hydrazine via both direct and indirect pathways. In both cases, the activ...

2013
Horst Kunkely

Hydrazine and its derivatives play an important role as ligands in coordination chemistry [1], Hy­ drazine complexes may occur as intermediates in ni­ trogen fixation and related processes [2]. Although a variety of hydrazine complexes are known the electronic spectra and photoreactivity of such com­ pounds have not yet been studied. Owing to its pe­ culiar electronic structure and redox behavi...

Journal: :Dalton transactions 2014
Satarupa Pattanayak Abhishek Swarnkar Amiya Priyam Gopal M Bhalerao

A simplified, single-step aqueous synthesis route to tunable anisotropic silver nanocrystals (NCs) has been developed by tailoring the hydrogen-bonding interactions between a mild stabilizer, sodium citrate, and a mild reductant, hydrazine hydrate. The structure directing ability of the H-bonding interaction was harnessed by keeping a stoichiometric excess of hydrazine under ambient conditions ...

2017
Govindhan Maduraiveeran Ramasamy Ramaraj

Background: A facile and sensitive electrochemical sensor platform has been explored based on gold nanoparticles (Au NPs) dispersed in amine-functionalized three-dimensional (3D) silicate sol–gel network for ((aminopropyl)triethoxysilane (APS)-Au NPs) for multi-analytes such as hydrazine, sulfite, and nitrite. Methods: Au NPs dispersed silicate network was prepared via a single-step chemical re...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید