Varga, M. Stehlik, S. Kaman, O. Izak, T. Domonkos, M. Lee, D. S. Kromka, A. 2024-01-20T01:01:30Z 2024-01-20T01:01:30Z 2021-09-05 2017-08 0008-6223 https://pubs.kist.re.kr/handle/201004/122463 Porous and self-standing structures are highly promising as membranes, electrodes, high sensitivity gas sensors, and supercapacitors due to their high surface area and tuneable surface properties. Composition of such materials with a polycrystalline diamond film may provide new functionalities for biological and electrochemical applications. However, the diamond growth on foreign substrates as a pinhole-free continuous thin film is still a not a trivial task. Here, we present a successful templated deposition process of polycrystalline diamond film on reticulated vitreous carbon foam (C-foam). Samples of polyvinyl alcohol (PVA) polymer-nanodiamond (ND) mixtures with various ND concentrations were prepared and characterized by means of optical spectroscopy, Raman spectroscopy, dynamic light scattering, zeta potential and pH measurements. The ND/PVA mixtures are employed for the preparation of diamond film by microwave plasma enhanced chemical vapour deposition process, and the effect of their composition (NDs/PVA ratio) on the nucleation (seed density, clustering) and diamond growth (substrate etching, polymer transformation) is analysed. The nucleation, early-stage of diamond growth and the resulting diamond-coated C-foams are characterized by scanning electron microscopy, atomic force microscopy and Raman spectroscopy. The obtained results underline the importance to tailor the NDs/PVA ratio for a well-defined three-dimensional C-foam coverage with the continuous diamond film. (C) 2017 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD CVD GROWTH SIZE DEPOSITION NANOTUBES FILMS NANOMATERIALS FABRICATION TRANSITION NUCLEATION MEMBRANES Templated diamond growth on porous carbon foam decorated with polyvinyl alcohol-nanodiamond composite Article 10.1016/j.carbon.2017.04.022 1 CARBON, v.119, pp.124 - 132 CARBON 119 124 132 scie scopus 000402713300016 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article CVD GROWTH SIZE DEPOSITION NANOTUBES FILMS NANOMATERIALS FABRICATION TRANSITION NUCLEATION MEMBRANES carbon foam diamond gas sensor supercapacitor surface area PVA