Composite proton-conducting membranes with nanodiamonds
| العنوان: | Composite proton-conducting membranes with nanodiamonds |
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| المؤلفون: | V. T. Lebedev, A. Ya. Vul, S. S. Ivanchev, V. Yu. Bayramukov, Iosif V. Gofman, Baohu Wu, A. S. Odinokov, Alexander I. Kuklin, A. V. Shvidchenko, O. N. Primachenko, Yu. V. Kulvelis |
| المصدر: | Fullerenes, nanotubes & carbon nanostructures 28(2), 140-146 (2020). doi:10.1080/1536383X.2019.1680981 |
| بيانات النشر: | Informa UK Limited, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Materials science, Proton, Organic Chemistry, Composite number, 02 engineering and technology, Polymer, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Membrane, chemistry, Chemical engineering, Hydrogen fuel, ddc:660, General Materials Science, Physical and Theoretical Chemistry, 0210 nano-technology |
| الوصف: | A new approach was applied to improve the proton conductivity mechanism in perfluorinated membranes for hydrogen fuel cells. The composite short-side chain membranes were modified with functionalized diamond nanoparticles. Carboxylated nanodiamonds embedded in the polymer matrix provide an increase in conductivity at a moderate nanodiamond content, while the mechanical strength of the membranes remains high. The casting method of membranes preparation from solutions in N,N-dimethylformamide allowed saving the general channel structure in membranes at the presence of nanodiamonds, in agreement with neutron scattering data. We propose the formation of additional areas of conductivity, formed controllably, due to nanodiamond particles associated with polymer chains, on the surface of which accelerated diffusion of protons through the hopping Grotthus mechanism from the centers of proton adsorption proceeds with the transition to proton-conducting channels of the matrix covered with sulfonic groups. |
| تدمد: | 1536-4046 1536-383X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fa5b6905f32bf2c89a2b972327799b7 https://doi.org/10.1080/1536383x.2019.1680981 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....2fa5b6905f32bf2c89a2b972327799b7 |
| قاعدة البيانات: | OpenAIRE |
PDF full text from Publisher | تدمد: | 15364046 1536383X |
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