A Simple Route Towards CuO Nanowires and Nanorods

Abstract

CuO nanowires and nanorods were synthesized through a novel controllable solution-phase hydrothermal method using a nonionic surfactant polyethylene glycol (PEG) as the structure-directing template. The lengths of obtained 1D CuO nanostructures could be successfully controlled through choosing different molecular weights of PEG. The phase structures and morphologies were investigated by XRD, TEM, HRTEM and SAED. The formation mechanisms of the nanorods and nanowires were investigated and discussed on the basis of the experimental results.

Morphology dependence of thermal and rheological properties of oil-based nanofluids of CuO nanostructures

“…Then, 1 ml sodium hydroxide (3 M) was added to the solution under constant stirring for 15 min. The solution was moved into the autoclave and kept at 120 • C for 12 h [12]. The products then were washed with deionized water four times.…”

Surfactant‐Directed Synthesis of Branched Bismuth Telluride/Sulfide Core/Shell Nanorods

“…[15,16,26] Bi 2 S 3 shell formation is driven by the thermal decomposition of thioligated Bi-LGTA complexes on the LGTA-passivated faces of the nanorod surfaces. The presence of Bi 2 Te 2 S cores suggests simultaneous formation of the core and the shell in some cases.…”

“…These results indicate that LGTA is the primary shapedirecting agent while PEG serves as a co-surfactant that abets anisotropic growth, probably in a fashion similar to PEG-assisted growth of Cu and ZnO nanorods. [16,17] Rapid reduction of Bi and Te salts using a strong reductant such as hydrazine monohydrate in the presence of LGTA and PEG also results in macroscopic spheres (see Fig. S2), underscoring the importance of the delicate balance between crystal nucleation and surfactant adsorption-desorption dynamics to obtain anisotropic growth.…”

Fabrication of CuO nanoparticle interlinked microsphere cages by solution method

“…It has many interesting properties and received much research attention [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. CuO is a p-type semiconductor in general with a narrow band gap (1.2 eV) [18,19] and hence is potentially useful for constructing junction devices such as p-n junction diodes [20].…”