Fig xA Local equivalence ratio flow velocity level lines and

Fig. 15. Local equivalence ratio, flow velocity level lines and gas temperature profiles along Ezatiostat half height of channel with cavities (2.5 mm ? y ? 4.0 mm) for different longitudinal distance of the quartz combustor at ? = 0.5: (a) local equivalence ratio profiles; (b) flow velocity level lines; (c) gas temperature profiles.Figure optionsDownload full-size imageDownload as PowerPoint slide
4. Conclusions
AcknowledgementsThis work was supported by the Natural Science Foundation of China (No. 51276073) and the Foundation of State Key Laboratory of Coal Combustion, China (Grant No. FSKLCCA1503).
Nickel carbide; Ni nanoparticles; Carbon nanofibers; Catalytic chemical vapor deposition; Hydrogenation
1. Introduction
As one of important carbon nanomaterials, carbon nanofibers (CNFs) have attracted increasing attention because of their unique physicochemical properties including high mechanical strength, good electrical conductivity, unique surface properties, high resistance to acid/basic media and good accessibility of the active phase, which make them suitable as heterogeneous catalyst supports [1], [2], [3], [4] and [5]. As catalyst supports, CNFs especially can induce an electronic perturbation to metal crystallites in liquid phase reaction, which greatly modifies the catalytic performance [6]. Undoubtedly, efficient immobilization of guest components through surface modification of CNFs is essential for enhancing the interactions between supports and catalytically active species and thus achieving excellent catalytic performance.