Jian-Ning Ding

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Anodization of Al foil under low voltages of 1-10 V was conducted to obtain porous anodic aluminas (PAAs) with ultrasmall nanopores. Regular nanopore arrays with pore diameter 6-10 nm were realized in four different electrolytes under 0-30°C according to the AFM, FESEM, TEM images and current evolution curves. It is found that the pore diameter and(More)
Curled up: TiO(2)-B nanotubes with two curled layers are successfully prepared by a facile hydrothermal route and subsequent calcination. The two curled layers produce a thin wall, and thus the obtained double-walled structure results in short distances of electron and lithium-ion transport, thereby leading to an improved high-rate performance.
The Lunar Prospector Team and others have interpreted epithermal neutron spectra from the lunar poles as potentially indicating the presence of large quantities of water ice. Water ice might be deposited as a consequence of cometary impacts on the Moon as has been predicted theoretically. The interpretation of the neutron spectra as indicating water ice at(More)
The intrinsic hydrogenated nano-crystalline silicon (nc-Si:H) films for p-i-n tandem solar cells have been deposited by plasma enhanced chemical vapor deposition (PECVD) assisted with direct current bias, and were investigated by four-point probe sheet resistance measurement, Raman and ultraviolet– visible (UV-VIS) transmission spectra. By varying(More)
Effective lubrication under extreme conditions such as high temperature is of considerable importance to ensure the reliability of a mechanical system. New lubricants that can endure high temperatures should be studied and employed as alternatives to traditional oil-based lubricant. In this paper, a thermocapillary model of a silicone-oil droplet is(More)
The gradient-corrected density functional calculation is applied to search the lowest-energy configurations of Cu(n)N (n=1-6) clusters and the calculation indicated that Cu(3)N cluster is the most stable one. Based on the result, we further investigate the equilibrium geometries and stabilities of the Cu(3n)N(n) (n=2-5) clusters. We found that in Cu(6)N(2)(More)
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