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55,168 Newest Publications about the topic water

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Deformation of water nano-droplets on graphene under the influence of constant and alternative electric fields

20-Jan-2018 | M. Kargar; A. Lohrasebi, Physical Chemistry Chemical Physics, 2018

The dynamics of a water nano-droplet on a flexible graphene sheet, in the presence of constant and alternative electric fields with various amplitudes and frequencies, was considered using a molecular dynamics method. It was found that because the water molecules respond to electric field, the ...

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Deformation of water nano-droplets on graphene under the influence of constant and alternative electric fields

20-Jan-2018 | M. Kargar; A. Lohrasebi, Physical Chemistry Chemical Physics, 2018

The dynamics of a water nano-droplet on a flexible graphene sheet, in the presence of constant and alternative electric fields with various amplitudes and frequencies, was considered using a molecular dynamics method. It was found that because the water molecules respond to electric field, the ...

more

PdCuCeO–TPAB: a new catalytic system for quasi-heterogeneous Suzuki–Miyaura cross-coupling reactions under ligand-free conditions in water

19-Jan-2018 | Philani P. Mpungose; Neo I. Sehloko; Glenn E. M. Maguire; Holger B. Friedrich, New Journal of Chemistry, 2018

In this contribution, we report a simple and clean method for preparation of a single-phase Pd0.04Cu0.04Ce0.92O2−δ (PdCuCeO) solid-solution oxide and its application in quasi-heterogeneous Suzuki–Miyaura cross-coupling reactions. The catalyst was characterised fully and all the characterisation ...

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PdCuCeO–TPAB: a new catalytic system for quasi-heterogeneous Suzuki–Miyaura cross-coupling reactions under ligand-free conditions in water

19-Jan-2018 | Philani P. Mpungose; Neo I. Sehloko; Glenn E. M. Maguire; Holger B. Friedrich, New Journal of Chemistry, 2018

In this contribution, we report a simple and clean method for preparation of a single-phase Pd0.04Cu0.04Ce0.92O2−δ (PdCuCeO) solid-solution oxide and its application in quasi-heterogeneous Suzuki–Miyaura cross-coupling reactions. The catalyst was characterised fully and all the characterisation ...

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A novel methodology for fabrication of Ag–polypyrrole core–shell nanosphere using microemulsion system and evaluation of its antibacterial application

19-Jan-2018 | Alireza Salabat; Farid Mirhoseini; Mohammad Arjomandzadegan; Elham Jiryaei, New Journal of Chemistry, 2018

In this study, a new microemulsion route was applied to synthesize Ag–polypyrrole (PPy) core–shell nanospheres at room temperature. In this method, colloidal Ag nanoparticles, which were prepared in a water-in-pyrrole microemulsion, were added to the aqueous solution of CTAB to form a ...

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Impact of oxygen chemistry on model interstellar grain surfaces

19-Jan-2018 | A. Rosu-Finsen; M. R. S. McCoustra, Physical Chemistry Chemical Physics, 2018

Temperature-programmed desorption (TPD) and reflection–absorption infrared spectroscopy (RAIRS) are used to probe the effect of atomic and molecular oxygen (O and O2) beams on amorphous silica (aSiO2) and water (H2O) surfaces (porous-amorphous solid water; p-ASW, compact amorphous solid water; ...

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Privileged hydration sites in aromatic side chains: effect on conformational equilibrium

19-Jan-2018 | Belén Hernández; Fernando Pflüger; Manuel Dauchez; Mahmoud Ghomi, Physical Chemistry Chemical Physics, 2018

Water interaction with peptide chains is one of the key structure stabilizing factors in an aqueous environment. Because of its strong polar character, water can bind to both anionic and cationic sites via electrostatic interactions. It can also act as a hydrogen-bond donor or acceptor according ...

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Novel supramolecular sensors constructed from pillar[5]arene and a naphthalimide for efficient detection of Fe3+ and F− in water

19-Jan-2018 | Qi Lin; Peng-Peng Mao; Feng Zheng; Lu Liu; Juan Liu; You-Ming Zhang; Hong Yao; Tai-Bao Wei, New Journal of Chemistry, 2018

As we all know, due to the high hydration enthalpy of F−, the detection of F− in water is a very difficult task. Herein, we report a novel water soluble self-assembled supramolecular sensor P5B1 for fluorescence detection of Fe3+ and F− in water. The supramolecular sensor P5B1 was constructed by ...

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Inner surface modification of 1.76 nm diameter (13,13) carbon nanotubes and the desalination behavior of its reverse osmosis membrane

19-Jan-2018 | Dengfeng Yang; Qing Li; Jinsheng Shi; Jianhua Wang; Qingzhi Liu, New Journal of Chemistry, 2018

Since wide carbon nanotubes (CNTs) have higher water flux and are less expensive than narrow ones, a set of RO membranes with modified CNTs of 1.76 nm in diameter (13,13) were built in this work, and the mechanisms of water flux and salt rejection were studied through molecular dynamics ...

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The catalytic effect of H2O on the hydrolysis of CO32− in hydrated clusters and its implication in the humidity driven CO2 air capture

19-Jan-2018 | Hang Xiao; Xiaoyang Shi; Yayun Zhang; Xiangbiao Liao; Feng Hao; Klaus S. Lackner; Xi Chen, Physical Chemistry Chemical Physics, 2018

The hydration of ions in nanoscale hydrated clusters is ubiquitous and essential in many physical and chemical processes. Here we show that the hydrolysis reaction is strongly affected by relative humidity. The hydrolysis of CO32− with n = 1–8 water molecules is investigated using an ab initio ...

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