Synthesis of Titanium Carbide Nanoparticles with a High Specific Surface Area from a TiO₂ Core–Sucrose Shell Precursor

Abstract

By carbothermally reducing a TiO2 core–sucrose shell precursor, titanium carbide mesoporous nanoparticles with a very high specific surface area (147 m2/g at 1500°C) have been prepared. The high specific surface area results from the mesoporous nature of the produced nanoparticles with two types of pores: the one with a pore diameter of about 20 nm and the other with <4 nm.

Mechanisms of titania nanoparticle mediated growth of turbostratic carbon nanotubes and nanofibers

“…62,63 More reducing environments often employed for carbothermal synthesis of titanium carbide from titania nanoparticle precursors also agree with our observation, which include 1000 C or higher reaction temperatures, an hour or longer reaction time, and getting titania directly in contact with a solid source of carbon. [64][65][66][67][68] Furthermore, nanoparticles of titanium carbide are stable down to room temperature once synthesized 69 and resistant to oxidation in air up to 300 C at atmospheric pressure. 70 Hence, the observed Ti2p peaks suggest that titania is the primary compound that contains titanium throughout the CVD growth.…”

Graphene/titanium carbide composites prepared by sol–gel infiltration and spark plasma sintering

“…It is clearly seen that a higher C/Ti ratio resulted in higher apparent porosity and lower density. The amorphous carbon derived from PFA has a relatively low density (1.8-2.1 g/cm 3 ) and the carbon is very difficult to be densified. 28 The specimens with a higher C/Ti ratio are enriched with carbon and thus have lower density and higher porosity.…”

“…Titanium carbide (TiC) is an ultra-high temperature ceramic (UHTC), with a low density (4.93 g/cm 3 ), high melting point (3067 °C), high Vickers hardness (28)(29)(30)(31)(32)(33)(34)(35), high Young's modulus (410-450 GPa), low thermal expansion and high electrical and thermal conductivity. 1,2 Attributed to these characteristics, TiC has been extensively investigated for many applications, including cutting tools, refractory components, electronic elements, aerospace engineering and so on.…”

“…1,2 Attributed to these characteristics, TiC has been extensively investigated for many applications, including cutting tools, refractory components, electronic elements, aerospace engineering and so on. 2,3 In the last few years, ceramic/carbon composites have attracted tremendous attention from researchers due to their excellent mechanical and functional properties compared with the monolithic counterparts. [4][5][6][7] Carbon nanotubes (CNTs) and carbon fibers are often used in the manufacturing of ceramic composites.…”

Are stirring and sonication pre-dispersion methods equivalent for in vitro toxicology evaluation of SiC and TiC?

“…It is considered to be a highly biocompatible material with promising uses in bioanalysis, biotechnology, medicine, surface coating of devices intended for contact with tissues, and as film for serum protein adsorption or cell culturing (Barillet et al 2010;Guevara-Lora et al 2009). Titanium carbide (TiC) nanoparticles (NPs) can be produced by similar methods as those used for SiC NPs; they are a technologically important material for crucibles, cutting tools, polishing pastes, transparent optical materials, armor, and composites for tape heads in the electronic and wear resistant materials industry (Bae et al 2009). …”