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Surface modification of γ-Fe2O3 nanoparticles synthesized by a chemically
induced transition has been attempted by adding ZnCl2 during synthesis.
The structure of the modified particles was studied using X-ray diffraction (XRD)
and transmission electron microscopy (TEM). The experimental results showed that ZnFe2O4 grew epitaxially on the γ- Fe2O3 crystallites to form composite nanoparticles with the spinel structure, on which
FeCl3 might be adsorbed. The apparent grain size dc estimated by XRD using the
Scherrer equation was larger rather than smaller than the average particle size measured by TEM.
This paradox can be explained by the effect of absorption in the coating heterolayer.
In the unfolding knowledge-based economy, services do matter. But while they increasingly seem to play a pivotal role in innovation processes, there has been little systematic analysis of this role. Combined with the existing literatures, based on the service science theory, network competence theory and relationship learning theory, this paper analyzes the service innovation and the service innovation performance thoroughly. The paper constructs a structure equation model containing an intermediary variable. Through an empirical test of 243 enterprises of South China, this paper draws the following conclusions: 1) network competence has a positive impact on service innovation performance; 2) network competence has a significantly positive impact on relationship learning; 3) relationship learning has a positive impact on service innovation performance; 4) relationship learning plays a mediating role between the relationship of network competence and service innovation performance. This paper provides beneficial guidance for service innovation activities and strengthens the competitive advantage of service industry.