Open Access
RESEARCH NOTE The First Preparation of Silicon Carbide Nanotubes by Shape Memory Synthesis and Their Catalytic Potential
Reads0
Chats0
TLDR
In this paper, the first reproducible synthesis of silicon carbide nanotubes of different internal and external diameters was presented, based on the gas-solid reaction between a vapor of SiO and nanotsubes of carbon for the high diameters, and nanofibers of carbon in the small diameters.Abstract:
Two main innovations are presented in this article. (1) The first reproducible synthesis of silicon carbide nanotubes of different internal and external diameters. The method used, the shape memory synthesis, is based on the gas‐solid reaction between a vapor of SiO and nanotubes of carbon for the high diameters, and nanofibers of carbon for the small diameters. (2) A significant increase in the rate of a catalytic reaction (oxidation of H2S in S) probably due to a microscopic increase of the partial pressure of H2S inside the nanotubes, produced by condensation and microcapillarity, while the macroscopic partial pressure outside the tubes remains unchanged. This phenomenon could be extended to many other reactions, with polar gaseous reactants which are prone to condensation by capillarity at the usual temperatures of catalytic reaction, or with liquid phase reaction by an overconcentration of one of the reactants inside the tubes. c ∞ 2001 Academic Pressread more
Citations
More filters
Journal ArticleDOI
Recent progress in synthesis, properties and potential applications of SiC nanomaterials
TL;DR: A comprehensive review of the recent progress on the synthesis, novel properties, and applications of SiC nanomaterials is provided in this paper, with an emphasis on vapor-based and solution-based methods.
Journal ArticleDOI
Ordered mesoporous non-oxide materials.
TL;DR: In this critical review, the ordered mesoporous inorganic non-oxide materials are categorized by compositions, includingnon-oxide ceramics, metal chalcogenides, metal nitrides, carbides and fluorides, and systematically summarized on the basis of their synthesis approaches and mechanisms.
Journal ArticleDOI
Pd nanoparticles introduced inside multi-walled carbon nanotubes for selective hydrogenation of cinnamaldehyde into hydrocinnamaldehyde
TL;DR: Palladium nanoparticles were deposited inside multi-walled carbon nanotubes (MWNTs) via a simple impregnation using an aqueous solution containing a palladium salt as mentioned in this paper.
Journal ArticleDOI
Silicon Carbide: A Novel Catalyst Support for Heterogeneous Catalysis
Marc J. Ledoux,Cuong Pham-Huu +1 more
TL;DR: In this paper, progress in developing a new class of support materials based on silicon carbide (SiC) is reviewed, which can be modified for specific catalytic applications through the addition of metals.
Journal ArticleDOI
What have we learnt about the mechanisms of rapid water transport, ion rejection and selectivity in nanopores from molecular simulation?
TL;DR: Since molecular dynamics simulations allow the motion of individual atoms to be followed over time, they have the potential to provide fundamental insight into the reasons why transport in nanoscale pores differs from expectations based on macroscopic theory.
References
More filters
Journal ArticleDOI
Storage of hydrogen in single-walled carbon nanotubes
A. C. Dillon,Kim M. Jones,T. A. Bekkedahl,Ching-Hwa Kiang,Donald S. Bethune,Michael J. Heben +5 more
TL;DR: In this article, a gas can condense to high density inside narrow, single-walled nanotubes (SWNTs) under conditions that do not induce adsorption within a standard mesoporous activated carbon.
Journal ArticleDOI
Hydrogen Storage in Single-Walled Carbon Nanotubes at Room Temperature
TL;DR: Masses of single-walled carbon nanotubes, synthesized by a semicontinuous hydrogen arc discharge method, were employed for hydrogen adsorption experiments in their as-prepared and pretreated states and show promise as an effective hydrogen storage material.
Journal ArticleDOI
A review of catalytically grown carbon nanofibers
TL;DR: A review of the recent advances made in the development of carbon filaments can be found in this paper, with emphasis both on the fundamental aspects surrounding the growth of the material and a discussion of the key factors which enable one to control their chemical and physical properties.
Book
Carbon Nanotubes: Preparation and Properties
TL;DR: Theoretical predictions of Gamaly Properties: Theoretical Predictions, J.W. Mintmire and C.T. Calvert as mentioned in this paper, and T.M. Endo from Carbon Fibers to Nanotubes, M.S. Dresselhaus, G.G. Saito, and R.Ebbesen growth mechanism of carbon nanotubes.
Journal ArticleDOI
Recent progress in synthesis, properties and potential applications of SiC nanomaterials
TL;DR: A comprehensive review of the recent progress on the synthesis, novel properties, and applications of SiC nanomaterials is provided in this paper, with an emphasis on vapor-based and solution-based methods.
Related Papers (5)
Dependence of SWNT growth mechanism on temperature and catalyst particle size: Bulk versus surface diffusion
Feng Ding,Arne Rosén,Kim Bolton +2 more