Carbon Nanowalls
Synthesis and emerging applications
(Sprache: Englisch)
Representing the first text to cover this exciting new area of research, this book will describe synthesis techniques of CNWs, their characterization and various expected applications using CNWs. Carbon-nanowalls (CNWs) can be described as two-dimensional...
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Produktinformationen zu „Carbon Nanowalls “
Representing the first text to cover this exciting new area of research, this book will describe synthesis techniques of CNWs, their characterization and various expected applications using CNWs. Carbon-nanowalls (CNWs) can be described as two-dimensional graphite nanostructures with edges comprised of stacks of plane graphene sheets standing almost vertically on the substrate. These sheets form a wall structure with a high aspect ratio. The thickness of CNWs ranges from a few nm to a few tens of nm. The large surface area and sharp edges of CNWs may prove useful for a number of applications such as electrochemical devices, field electron emitters, storage materials for hydrogen gas, catalyst support. In particular, vertically standing CNWs with a high surface-to-volume ratio, serve as an ideal material for catalyst support for fuel cells and in gas storage materials.
Klappentext zu „Carbon Nanowalls “
Representing the first text to cover this exciting new area of research, this book will describe synthesis techniques of CNWs, their characterization and various expected applications using CNWs. Carbon-nanowalls (CNWs) can be described as two-dimensional graphite nanostructures with edges comprised of stacks of plane graphene sheets standing almost vertically on the substrate. These sheets form a wall structure with a high aspect ratio. The thickness of CNWs ranges from a few nm to a few tens of nm. The large surface area and sharp edges of CNWs may prove useful for a number of applications such as electrochemical devices, field electron emitters, storage materials for hydrogen gas, catalyst support. In particular, vertically standing CNWs with a high surface-to-volume ratio, serve as an ideal material for catalyst support for fuel cells and in gas storage materials.
Inhaltsverzeichnis zu „Carbon Nanowalls “
1. Introduction1.1 Discovery of two-dimensional carbon nanostructures1.2 Brief description of carbon nanowalls1.3 Research on carbon nanowalls2. Synthesis methods 2.1 Microwave plasma enhanced chemical vapor deposition2.2 Inductively coupled plasma enhanced chemical vapor deposition2.3 Capacitively coupled plasma enhanced chemical vapor deposition with radical injection2.3.1 RF plasma-enhanced CVD with H radical injection2.3.2 VHF plasma-enhanced CVD with H radical injection2.4 Electron-beam-excited plasma enhanced chemical vapor deposition2.5 Hot filament chemical vapor deposition2.6 Atmospheric plasma CVD2.7 Sputtering3. Physics of carbon nanowalls3.1 Characterization of carbon nanowalls3.1.1 SEM and TEM observation3.1.2 Raman spectra of carbon nanowalls3.1.3 Grazing incidence in-plane X-ray diffraction3.2 Electrical properties of carbon nanowalls3.2.1 Field emission properties of carbon nanowalls3.2.2 Electrical conduction of carbon nanowalls3.3.3 Electrode for electrochemistry4. Fabrication of carbon nanowalls using radical injection plasma enhanced CVD4.1 Concept of radical-controlled processing4.2 RF plasma-enhanced CVD with H radical injection4.2.1 Experimental setup for RF plasma-enhanced CVD with H radical injection4.2.2 Measurement of radical densities in the capacitively coupled plasma region4.2.3 Effect of carbon source gases and H radicals on carbon nanowall growth4.2.4 Fabrication of straight and aligned carbon nanowalls with regular spacing4.3 VHF plasma-enhanced CVD with H radical injection4.3.1 Experimental setup of VHF plasma-enhanced CVD with H radical injection4.3.2 Chamber cleaning for carbon nanowall growth with high reproducibility4.3.3 Electrical conduction control of carbon nanowalls4.3.4 Fabrication of monolithic self-sustaining graphene sheets5. Growth mechanism of carbon nanowalls 5.1 Measurement of radical densities in the plasma used for the fabrication of carbon nanowalls5.1.1 Radicals in microwave plasma-enhanced CVD with CH4/H2
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mixture5.1.2 Radicals in fluorocarbon plasma with H radical injection5.1.3 Discussion5.2 Steady state growth of carbon nanowalls5.2.1 RF plasma-enhanced CVD with H radical injection employing C2F6/H2 system5.2.2 Inductively coupled plasma (ICP) enhanced CVD employing CH4/Ar system5.2.3 Electron-beam-excited plasma (EBEP) enhanced CVD employing CH4/H2 system 5.2.4 VHF plasma-enhanced CVD with H radical injection employing C2F6/H2 system 5.2.5 Discussion5.3 Nucleation of carbon nanowalls5.3.1 Investigation of nucleation stage of carbon nanowall growth employing C2F6/H25.3.2 Comparison of carbon nanowall growth employing C2F6/H2 with and without O2 gas addition 5.3.3 Nucleation model of carbon nanowalls5.4 Nucleation mechanism of carbon nanowall growth under ion irradiation5.4.1 Carbon nanowall growth using multi-beam CVD technique5.4.2 Effect of ions on the growth of carbon nanowalls5.5 Area-selective growth of carbon nanowalls6. Field emission6.1 Field emission properties of as-grown carbon nanowalls6.2 Surface treatment for improvement of field emission properties6.2.1 Surface coating6.2.2 Metal/carbon nanowall composites6.2.3 Plasma surface treatment7. Using carbon nanowalls as templates7.1 Fabrication of nanostructured materials using carbon nanowalls as templates 7.1.1 Decoration of carbon nanowalls7.1.2 Fabrication of nanostructured materials on carbon nanowall templates7.2 Synthesis of Pt nanoparticles on carbon nanowall surface using supercritical fluid chemical deposition7.2.1 Introduction7.2.2 Synthesis of Pt nanoparticles by plating7.2.3 Synthesis of Pt nanoparticles by sputtering7.2.4 Supercritical fluids7.2.5 Experimental procedure of metal-organic chemical fluid deposition using supercritical carbon dioxide7.2.6 Characterization of platinum nanoparticles formed by metal-organic chemical fluid deposition using supercritical carbon dioxide7.2.7 Mechanism of platinum nanoparticle format
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Bibliographische Angaben
- Autoren: Mineo Hiramatsu , Masaru Hori
- 2010, 2010, 161 Seiten, Maße: 16 x 24,1 cm, Gebunden, Englisch
- Verlag: Springer
- ISBN-10: 3211997172
- ISBN-13: 9783211997178
- Erscheinungsdatum: 31.07.2010
Sprache:
Englisch
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