Figure 7.

Atomic geometries of Ni-doped TiO2 (101) surface. The gray, red and blue balls represent O, Ti, and Ni atoms, respectively. O2C, O3C, Ti5C, Ti6C, Ni5C, and Ni6C mean the most probable sites for the adsorption.

Li et al. Nanoscale Research Letters 2014 9:118   doi:10.1186/1556-276X-9-118
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