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Zuo S, Xu X, Ji S, Wang Z, Liu Z, Liu J. Cathodes for Aqueous Zn‐Ion Batteries: Materials, Mechanisms, and Kinetics. Chemistry 2020; 27:830-860. [DOI: 10.1002/chem.202002202] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/07/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Shiyong Zuo
- Guangdong Provincial Key Laboratory of Advanced, Energy Storage Materials School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
| | - Xijun Xu
- Guangdong Provincial Key Laboratory of Advanced, Energy Storage Materials School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Zhuosen Wang
- Guangdong Provincial Key Laboratory of Advanced, Energy Storage Materials School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
| | - Zhengbo Liu
- Guangdong Provincial Key Laboratory of Advanced, Energy Storage Materials School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
| | - Jun Liu
- Guangdong Provincial Key Laboratory of Advanced, Energy Storage Materials School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
- State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou 510641 P. R. China
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Vaikuntam SR, Stöckelhuber KW, Subramani Bhagavatheswaran E, Wießner S, Scheler U, Saalwächter K, Formanek P, Heinrich G, Das A. Entrapped Styrene Butadiene Polymer Chains by Sol-Gel-Derived Silica Nanoparticles with Hierarchical Raspberry Structures. J Phys Chem B 2018; 122:2010-2022. [PMID: 29350918 DOI: 10.1021/acs.jpcb.7b11792] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A sol-gel transformation of liquid silica precursor to solid silica particles was carried out in a one-pot synthesis way, where a solution of styrene butadiene elastomer was present. The composites, thus produced, offered remarkable improvements of mechanical and dynamic mechanical performances compared to precipitated silica. The morphological analysis reveals that the alkoxy-based silica particles resemble a raspberry structure when the synthesis of the silica was carried out in the presence of polymer molecules and represent a much more open silica-network structure. However, in the absence of the polymer, the morphology of the silica particles is found to be different. It is envisaged that the special morphology of the in situ synthesized silica particles contributes to the superior reinforcement effects, which are associated with a strong silica-rubber interaction by rubber chains trapped inside the raspberry-like silica aggregates. Therefore, the interfaces are characterized in detail by low-field solid-state 1H NMR spectroscopy, 29Si solid-state NMR spectroscopy, and energy-dispersive X-ray spectroscopy. Low-field 1H NMR-based double-quantum experiments provide a quantitative information about the cross-link density of the silica-filled rubber composites and about the influence of silane coupling agent on the chemical cross-link density of the network and correlates well with equilibrium swelling measurements. The special microstructure of the alkoxy-based silica was found to be associated with the interaction between alkoxy-based silica and rubber chains as a consequence of particle growth in the presence of rubber chains.
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Affiliation(s)
- Sankar Raman Vaikuntam
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.,Institut für Werkstoffwissenschaft, Technische Universität Dresden , 01062 Dresden, Germany
| | | | - Eshwaran Subramani Bhagavatheswaran
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.,Institut für Werkstoffwissenschaft, Technische Universität Dresden , 01062 Dresden, Germany
| | - Sven Wießner
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.,Institut für Werkstoffwissenschaft, Technische Universität Dresden , 01062 Dresden, Germany
| | - Ulrich Scheler
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Kay Saalwächter
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg , 06099 Halle (Saale), Germany
| | - Petr Formanek
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Gert Heinrich
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.,Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, Technische Universität Dresden , D-01069 Dresden, Germany
| | - Amit Das
- Leibniz-Institut für Polymerforschung , Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.,Tampere University of Technology , Korkeakoulunkatu 16, 33101 Tampere, Finland
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Levet A, Colombani J, Duponchel L. Studying radiolytic ageing of nuclear power plant electric cables with FTIR spectroscopy. Talanta 2017; 172:139-146. [PMID: 28602286 DOI: 10.1016/j.talanta.2017.05.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 11/18/2022]
Abstract
Due to the willingness to extend the nuclear power plants length of life, it is of prime importance to understand long term ageing effect on all constitutive materials. For this purpose gamma-irradiation effects on insulation of instrumentation and control cables are studied. Mid-infrared spectroscopy and principal components analysis (PCA) were used to highlight molecular modifications induced by gamma-irradiation under oxidizing conditions. In order to be closer to real world conditions, a low dose rate of 11Gyh-1 was used to irradiate insulations in full cable or alone with a dose up to 58 kGy. Spectral differences according to irradiation dose were extracted using PCA. It was then possible to observe different behaviors of the insulation constitutive compounds i.e. ethylene vinyl acetate (EVA), ethylene propylene diene monomer (EPDM) and aluminium trihydrate (ATH). Irradiation of insulations led to the oxidation of their constitutive polymers and a modification of filler-polymer ratio. Moreover all these modifications were observed for insulations alone or in full cable indicating that oxygen easily diffuses into the material. Spectral contributions were discussed considering different degradation mechanisms.
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Affiliation(s)
- A Levet
- IRSN/PSN-RES, Cadarache, St Paul lez Durance 13115, France; LASIR CNRS UMR 8516, Université Lille 1, Sciences et Technologies, 59655 Villeneuve d'Ascq Cedex, France
| | - J Colombani
- IRSN/PSN-RES, Cadarache, St Paul lez Durance 13115, France
| | - L Duponchel
- LASIR CNRS UMR 8516, Université Lille 1, Sciences et Technologies, 59655 Villeneuve d'Ascq Cedex, France.
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Dey P, Naskar K, Dash B, Nair S, Unnikrishnan G, Nando GB. Selective dispersion of carbon fillers into dynamically vulcanized rubber/plastic blends: a thermodynamic approach to evaluate polymer reinforcement and conductivity enhancement. RSC Adv 2015. [DOI: 10.1039/c4ra16941g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phase selective and thermodynamically controlled dispersion of filler particles into the dynamically vulcanized rubber/plastic blends depicting higher abundance of carbon black in the thermoplastic phase with the progressive filler addition.
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Affiliation(s)
- Pranab Dey
- Rubber Technology Centre
- Indian Institute of Technology Kharagpur
- Kharagpur – 721302
- India
| | - Kinsuk Naskar
- Rubber Technology Centre
- Indian Institute of Technology Kharagpur
- Kharagpur – 721302
- India
| | | | | | | | - Golok B. Nando
- Rubber Technology Centre
- Indian Institute of Technology Kharagpur
- Kharagpur – 721302
- India
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Raman VS, Rooj S, Das A, Stöckelhuber KW, Simon F, Nando GB, Heinrich G. Reinforcement of Solution Styrene Butadiene Rubber by Silane Functionalized Halloysite Nanotubes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.829349] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Poikelispää M, Das A, Dierkes W, Vuorinen J. Synergistic effect of plasma-modified halloysite nanotubes and carbon black in natural rubber-butadiene rubber blend. J Appl Polym Sci 2012. [DOI: 10.1002/app.38080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rooj S, Das A, Heinrich G. Tube-like natural halloysite/fluoroelastomer nanocomposites with simultaneous enhanced mechanical, dynamic mechanical and thermal properties. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.06.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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