Surface Chemistry of Transition Metal Carbides

Abstract

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Adsorption and dissociation of H2S on Mo2C(001) surface-A first-principle study

“…Transition metal carbides have accepted great interests because of their excellent physical and chemical properties, e.g., extreme hardness [15], high melting point [16] and excellent electric as well as thermal conductivities [17]. These materials show more activity, selectivity, and resistance to poisoning than their parent metals.…”

The stability of TiC surfaces in the environment with various carbon chemical potential and surface defects

“…[1] Since the bonds in TMCs are a mixture of covalent, ionic and metallic features, [2] TMCs often exhibit the extreme hardness of covalent solids, the high melting temperature of ionic crystals, and the excellent electric and thermal conductivity of transition metals. All these properties make them suitable for many technological applications, such as cutting tools [3] and hard-coating materials.…”

Joint Photoelectron Imaging Spectroscopic and Theoretical Characterization on the Electronic Structures of the Anionic and Neutral ZrC2 Clusters

“…7−14 Additionally, transition metal carbides are also characterized by many unique and intriguing catalytic properties. 15 More interesting, the catalytic properties of some transition metal carbides are found to display similarity to those of the more expensive Pt-group metals. 15 It is well-accepted that the nature of the chemical bonding and electronic structures involved in the metal carbide clusters depend significantly on the nature of different metal atoms.…”

“…15 More interesting, the catalytic properties of some transition metal carbides are found to display similarity to those of the more expensive Pt-group metals. 15 It is well-accepted that the nature of the chemical bonding and electronic structures involved in the metal carbide clusters depend significantly on the nature of different metal atoms. Investigations on small metal−carbon clusters, therefore, can provide ideal and effective models for obtaining a comprehensive understanding of the interaction between metals and carbon, which will help in gaining insight in the growth mechanisms of different metal−carbon nanomaterials as well as in alerting the chemical properties of the transition metal carbides surface.…”