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One-pot synthesis of highly fluorescent Fe2+-doped carbon dots for dual-emissive nanohybrid to detection of zinc ions and histidine

03.07.2018 | Bingyan Han; Tingting Peng; Mingbo Yu; Chen Chi; Ying Li; Xixi Hu; Gaohong He, New Journal of Chemistry, 2018

Metal ions-doping is paid a little attention comparing with the nonmetallic-element doping to improve the fluorescence intensity of carbon dots (CDs). Herein, Fe2+-doped CDs was facilely synthesized at 80 °C instead of hydrothermal method for the first time. Fe2+ was confirmed to be the only ...

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Ab initio identification of the Li-rich phase in LiFePO4

03.07.2018 | Hua Zeng; Yue Gu; Gaofeng Teng; Yimeng Liu; Jiaxin Zheng; Feng Pan, Physical Chemistry Chemical Physics, 2018

A recent discovery of anionic redox activity in Li-rich layered compounds opens a new direction for the design of high-capacity cathode materials for lithium-ion batteries. Here using extensive ab initio calculations, the thermodynamic existence of the Li-rich phase in LiFePO4 to form ...

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Facile in situ fabrication of oriented titania submicrorods embedded into a superelastic nickel-titanium alloy fiber substrate and their application in solid-phase microextraction

03.07.2018 | Feifei Wang; Zhuo Wang; Ziyi Wang; Rong Zhang; Junliang Du; Xin-zhen Du, New Journal of Chemistry, 2018

A nickel-titanium oxide (NiO/TiO2) coating was in situ grown on a nickel-titanium alloy (NiTi) fiber substrate by anodic oxidation. After annealing, a uniform and dense Ni-free coating of rutile phase TiO2 submicrorods (TiO2SRs) was formed. In particular, TiO2SRs were embedded into the NiTi fiber ...

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On the gas-phase formation of the HCO− anion: Ac- curate quantum study of the H−+CO radiative associ- ation and HCO radiative electron attachment

03.07.2018 | Thierry Stoecklin; Philippe Halvick; Miguel del Jesus Lara-Moreno; Tarek Trabelsi; Majdi Hochlaf, Faraday Discussions, 2018

The hydrogen anion has never been observed in the interstellar medium, but it is most likely present in some interstellar regions. Since a direct detection appears especially difficult, im- proving the knowledge of the astrochemical processes involving this anion should be valuable in defining a ...

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Unveiling the complex vibronic structure of canonical adenine cation

03.07.2018 | Hong Yan Zhao; Kai-Chung Lau; Gustavo Adolfo Garcia; Laurent Nahon; Stephane Carniato; Lionel Poisson; Martin Schwel ..., Physical Chemistry Chemical Physics, 2018

Adenine, a DNA base, exists under several tautomers and isomers that are closely lying in energy and that may form a mixture upon vaporization of solid adenine. Indeed, it is challenging to bring adenine in the gas phase, especially as a unique tautomer. The experimental conditions were tuned to ...

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Controlled morphology of ZnSe nanostructures by varying Zn/Se molar ratio: The effects of different morphologies on optical properties and photocatalytic performance

03.07.2018 | Mohammad Bigdeli Tabar; S. M. Elahi; Mahmood Ghoranneviss; Ramin Yousefi, CrystEngComm, 2018

The effects of Zn/Se molar ratios on the morphology and photocatalytic performance of ZnSe nanostructures, which were synthesized by a co-precipitation method, were investigated. To intensively investigate the effects of the Zn/Se ratios, we performed a series of controllable experiments with ...

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A benzimidazole-based highly selective colorimetric and far-red fluorometric pH sensor for intracellular imaging

03.07.2018 | Tao Gong; Rong Li; Yangyang Yuan; Baofeng Yu; Hong Zhao; Zhizhen Liu; Rui Guo; Dan Su; Wenting Liang; Chuan Dong, New Journal of Chemistry, 2018

A turn-on fluorescent probe (E)-4-(2-(1H-benzo[d]imidazol-2-yl)vinyl)-N,N-diphenylaniline (BVD) was facilely synthesized via the ethylene bridging of triphenylamine and benzimidazole. The probe exhibited strong emission enhancement in the vis-NIR fluorescence region at 605 nm with pKa 4.14 and ...

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Fabrication of novel few-layer WS2/Bi2MoO6 plate-on-plate heterojunction structure with enhanced visible-light photocatalytic activity

03.07.2018 | Xiang Li; Mengyuan Su; Guifen Zhu; Kaige Zhang; Xia Zhang; Jing Fan, Dalton Transactions, 2018

In this study, a novel few-layer WS2/Bi2MoO6 heterojunction with greatly enhanced visible light photocatalytic performance was synthesized via a facile hydrothermal method. The results indicated that Bi2MoO6 nanosheets were directly grown on the surface of few-layer WS2 and form the ...

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Highly responsive hydrazine sensors based on donor-acceptor perylene diimides: impact of electron-donating groups

03.07.2018 | Yongwei Huang; Shasha Zhang; Guangcai Zhong; Chunli Li; Zhonghua Liu; Dongzhu Jin, Physical Chemistry Chemical Physics, 2018

Three high-performance hydrazine sensing devices have been developed based on donor-acceptor perylenediimides (PDIs) with strongly electron-donating piperidinyl (PDI-PY), pyrrolidinyl (PDI-PI) and n-hexylamino (PDI-HE) as substituents at perylene core. These PDIs devices, compared with reported ...

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Sustainable approach to recycling of multilayer flexible packaging using switchable hydrophilicity solvents

03.07.2018 | Samy Yousef; Maksym Tatariants; Tamari Mumladze; Gintaras Denafas; Regita Bendikiene; Vidas Makarevicius; Rita ..., Green Chemistry, 2018

Multilayer Flexible Packaging Waste (MFPW) represents the largest fraction of packaging waste and is composed mainly from multiple plastic films (80 wt. %) laminated with Al foil (5 wt.%). Mechanical and chemical recycling technologies are usually used in EU to separate polymeric fraction from ...

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