Xufei Zhu

TL;DR: In this paper, a simple electrochemical doping method was developed to significantly improve the electronic conductivity and the electrochemical performances of TiO 2 nanotube electrodes, which achieved a very high average specific capacitance of 20.08 mF cm −2 at a current density of 0.05

TL;DR: It is proposed that the electrochemical hydrogenation induced surface oxygen vacancies contribute to the substantially enhanced electrical conductivity and photoactivity of ATO-H nanotubes.

TL;DR: The formation processes of barrier anodic alumina (BAA) and porous anodic aluminium (PAA) are discussed in detail and the formation of nanopores can be ascribed to the oxygen evolution within the oxide.

TL;DR: A compact oxide layer between TNTAs and Ti substrate is introduced by employing an additional anodization in a fluoride-free electrolyte, which results in an about 200 nm thick compact layer near the nanotube bottoms.

TL;DR: The reduction of surface recombination rate is responsible for the substantially improved performance, which is proposed to have originated from a decreased interface defect density in combination with a field-effect passivation induced by a negative fixed charge in the Al2O3 shells.